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-rw-r--r--plug-ins/map-object/Makefile.am65
-rw-r--r--plug-ins/map-object/Makefile.in1046
-rw-r--r--plug-ins/map-object/README61
-rw-r--r--plug-ins/map-object/TODO18
-rw-r--r--plug-ins/map-object/arcball.c515
-rw-r--r--plug-ins/map-object/arcball.h50
-rw-r--r--plug-ins/map-object/map-object-apply.c328
-rw-r--r--plug-ins/map-object/map-object-apply.h10
-rw-r--r--plug-ins/map-object/map-object-image.c352
-rw-r--r--plug-ins/map-object/map-object-image.h62
-rw-r--r--plug-ins/map-object/map-object-main.c334
-rw-r--r--plug-ins/map-object/map-object-main.h90
-rw-r--r--plug-ins/map-object/map-object-preview.c745
-rw-r--r--plug-ins/map-object/map-object-preview.h26
-rw-r--r--plug-ins/map-object/map-object-shade.c1254
-rw-r--r--plug-ins/map-object/map-object-shade.h26
-rw-r--r--plug-ins/map-object/map-object-stock.c110
-rw-r--r--plug-ins/map-object/map-object-stock.h37
-rw-r--r--plug-ins/map-object/map-object-ui.c1462
-rw-r--r--plug-ins/map-object/map-object-ui.h14
20 files changed, 6605 insertions, 0 deletions
diff --git a/plug-ins/map-object/Makefile.am b/plug-ins/map-object/Makefile.am
new file mode 100644
index 0000000..b78b18b
--- /dev/null
+++ b/plug-ins/map-object/Makefile.am
@@ -0,0 +1,65 @@
+## Process this file with automake to produce Makefile.in
+
+if OS_WIN32
+mwindows = -mwindows
+else
+libm = -lm
+endif
+
+libgimpui = $(top_builddir)/libgimp/libgimpui-$(GIMP_API_VERSION).la
+libgimpconfig = $(top_builddir)/libgimpconfig/libgimpconfig-$(GIMP_API_VERSION).la
+libgimpwidgets = $(top_builddir)/libgimpwidgets/libgimpwidgets-$(GIMP_API_VERSION).la
+libgimp = $(top_builddir)/libgimp/libgimp-$(GIMP_API_VERSION).la
+libgimpcolor = $(top_builddir)/libgimpcolor/libgimpcolor-$(GIMP_API_VERSION).la
+libgimpmath = $(top_builddir)/libgimpmath/libgimpmath-$(GIMP_API_VERSION).la
+libgimpbase = $(top_builddir)/libgimpbase/libgimpbase-$(GIMP_API_VERSION).la
+
+if HAVE_WINDRES
+include $(top_srcdir)/build/windows/gimprc-plug-ins.rule
+map_object_RC = map-object.rc.o
+endif
+
+AM_LDFLAGS = $(mwindows)
+
+libexecdir = $(gimpplugindir)/plug-ins/map-object
+
+libexec_PROGRAMS = map-object
+
+map_object_SOURCES = \
+ arcball.c \
+ arcball.h \
+ map-object-apply.c \
+ map-object-apply.h \
+ map-object-image.c \
+ map-object-image.h \
+ map-object-main.c \
+ map-object-main.h \
+ map-object-preview.c \
+ map-object-preview.h \
+ map-object-shade.c \
+ map-object-shade.h \
+ map-object-stock.c \
+ map-object-stock.h \
+ map-object-ui.c \
+ map-object-ui.h
+
+AM_CPPFLAGS = \
+ -I$(top_srcdir) \
+ $(GTK_CFLAGS) \
+ $(GEGL_CFLAGS) \
+ -I$(includedir)
+
+LDADD = \
+ $(libm) \
+ $(libgimpui) \
+ $(libgimpwidgets) \
+ $(libgimpconfig) \
+ $(libgimp) \
+ $(libgimpcolor) \
+ $(libgimpmath) \
+ $(libgimpbase) \
+ $(GTK_LIBS) \
+ $(GEGL_LIBS) \
+ $(RT_LIBS) \
+ $(INTLLIBS) \
+ $(map_object_RC)
diff --git a/plug-ins/map-object/Makefile.in b/plug-ins/map-object/Makefile.in
new file mode 100644
index 0000000..b006121
--- /dev/null
+++ b/plug-ins/map-object/Makefile.in
@@ -0,0 +1,1046 @@
+# Makefile.in generated by automake 1.16.3 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2020 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Version resources for Microsoft Windows
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+ if test -z '$(MAKELEVEL)'; then \
+ false; \
+ elif test -n '$(MAKE_HOST)'; then \
+ true; \
+ elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+ true; \
+ else \
+ false; \
+ fi; \
+}
+am__make_running_with_option = \
+ case $${target_option-} in \
+ ?) ;; \
+ *) echo "am__make_running_with_option: internal error: invalid" \
+ "target option '$${target_option-}' specified" >&2; \
+ exit 1;; \
+ esac; \
+ has_opt=no; \
+ sane_makeflags=$$MAKEFLAGS; \
+ if $(am__is_gnu_make); then \
+ sane_makeflags=$$MFLAGS; \
+ else \
+ case $$MAKEFLAGS in \
+ *\\[\ \ ]*) \
+ bs=\\; \
+ sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+ | sed "s/$$bs$$bs[$$bs $$bs ]*//g"`;; \
+ esac; \
+ fi; \
+ skip_next=no; \
+ strip_trailopt () \
+ { \
+ flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+ }; \
+ for flg in $$sane_makeflags; do \
+ test $$skip_next = yes && { skip_next=no; continue; }; \
+ case $$flg in \
+ *=*|--*) continue;; \
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+ -*l) strip_trailopt 'l'; skip_next=yes;; \
+ -*l?*) strip_trailopt 'l';; \
+ -[dEDm]) skip_next=yes;; \
+ -[JT]) skip_next=yes;; \
+ esac; \
+ case $$flg in \
+ *$$target_option*) has_opt=yes; break;; \
+ esac; \
+ done; \
+ test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgdatadir = $(datadir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+libexec_PROGRAMS = map-object$(EXEEXT)
+subdir = plug-ins/map-object
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/acinclude.m4 \
+ $(top_srcdir)/m4macros/alsa.m4 \
+ $(top_srcdir)/m4macros/ax_compare_version.m4 \
+ $(top_srcdir)/m4macros/ax_cxx_compile_stdcxx.m4 \
+ $(top_srcdir)/m4macros/ax_gcc_func_attribute.m4 \
+ $(top_srcdir)/m4macros/ax_prog_cc_for_build.m4 \
+ $(top_srcdir)/m4macros/ax_prog_perl_version.m4 \
+ $(top_srcdir)/m4macros/detectcflags.m4 \
+ $(top_srcdir)/m4macros/pythondev.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+ $(ACLOCAL_M4)
+DIST_COMMON = $(srcdir)/Makefile.am $(am__DIST_COMMON)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am__installdirs = "$(DESTDIR)$(libexecdir)"
+PROGRAMS = $(libexec_PROGRAMS)
+am_map_object_OBJECTS = arcball.$(OBJEXT) map-object-apply.$(OBJEXT) \
+ map-object-image.$(OBJEXT) map-object-main.$(OBJEXT) \
+ map-object-preview.$(OBJEXT) map-object-shade.$(OBJEXT) \
+ map-object-stock.$(OBJEXT) map-object-ui.$(OBJEXT)
+map_object_OBJECTS = $(am_map_object_OBJECTS)
+map_object_LDADD = $(LDADD)
+am__DEPENDENCIES_1 =
+map_object_DEPENDENCIES = $(am__DEPENDENCIES_1) $(libgimpui) \
+ $(libgimpwidgets) $(libgimpconfig) $(libgimp) $(libgimpcolor) \
+ $(libgimpmath) $(libgimpbase) $(am__DEPENDENCIES_1) \
+ $(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1) \
+ $(am__DEPENDENCIES_1) $(map_object_RC)
+AM_V_lt = $(am__v_lt_@AM_V@)
+am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
+am__v_lt_0 = --silent
+am__v_lt_1 =
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
+am__v_P_0 = false
+am__v_P_1 = :
+AM_V_GEN = $(am__v_GEN_@AM_V@)
+am__v_GEN_ = $(am__v_GEN_@AM_DEFAULT_V@)
+am__v_GEN_0 = @echo " GEN " $@;
+am__v_GEN_1 =
+AM_V_at = $(am__v_at_@AM_V@)
+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
+am__v_at_0 = @
+am__v_at_1 =
+DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
+depcomp = $(SHELL) $(top_srcdir)/depcomp
+am__maybe_remake_depfiles = depfiles
+am__depfiles_remade = ./$(DEPDIR)/arcball.Po \
+ ./$(DEPDIR)/map-object-apply.Po \
+ ./$(DEPDIR)/map-object-image.Po ./$(DEPDIR)/map-object-main.Po \
+ ./$(DEPDIR)/map-object-preview.Po \
+ ./$(DEPDIR)/map-object-shade.Po \
+ ./$(DEPDIR)/map-object-stock.Po ./$(DEPDIR)/map-object-ui.Po
+am__mv = mv -f
+COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
+ $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+ $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) \
+ $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+ $(AM_CFLAGS) $(CFLAGS)
+AM_V_CC = $(am__v_CC_@AM_V@)
+am__v_CC_ = $(am__v_CC_@AM_DEFAULT_V@)
+am__v_CC_0 = @echo " CC " $@;
+am__v_CC_1 =
+CCLD = $(CC)
+LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+ $(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+ $(AM_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_CCLD = $(am__v_CCLD_@AM_V@)
+am__v_CCLD_ = $(am__v_CCLD_@AM_DEFAULT_V@)
+am__v_CCLD_0 = @echo " CCLD " $@;
+am__v_CCLD_1 =
+SOURCES = $(map_object_SOURCES)
+DIST_SOURCES = $(map_object_SOURCES)
+am__can_run_installinfo = \
+ case $$AM_UPDATE_INFO_DIR in \
+ n|no|NO) false;; \
+ *) (install-info --version) >/dev/null 2>&1;; \
+ esac
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
+# Read a list of newline-separated strings from the standard input,
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+am__uniquify_input = $(AWK) '\
+ BEGIN { nonempty = 0; } \
+ { items[$$0] = 1; nonempty = 1; } \
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+'
+# Make sure the list of sources is unique. This is necessary because,
+# e.g., the same source file might be shared among _SOURCES variables
+# for different programs/libraries.
+am__define_uniq_tagged_files = \
+ list='$(am__tagged_files)'; \
+ unique=`for i in $$list; do \
+ if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+ done | $(am__uniquify_input)`
+ETAGS = etags
+CTAGS = ctags
+am__DIST_COMMON = $(srcdir)/Makefile.in \
+ $(top_srcdir)/build/windows/gimprc-plug-ins.rule \
+ $(top_srcdir)/depcomp README TODO
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+AA_LIBS = @AA_LIBS@
+ACLOCAL = @ACLOCAL@
+ALLOCA = @ALLOCA@
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+ esac; \
+ for file in $$dist_files; do \
+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+ if test -d $$d/$$file; then \
+ dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+ if test -d "$(distdir)/$$file"; then \
+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+ fi; \
+ if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+ cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+ fi; \
+ cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+ else \
+ test -f "$(distdir)/$$file" \
+ || cp -p $$d/$$file "$(distdir)/$$file" \
+ || exit 1; \
+ fi; \
+ done
+check-am: all-am
+check: check-am
+all-am: Makefile $(PROGRAMS)
+installdirs:
+ for dir in "$(DESTDIR)$(libexecdir)"; do \
+ test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+ done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+ @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+ if test -z '$(STRIP)'; then \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ install; \
+ else \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+ fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libexecPROGRAMS clean-libtool \
+ mostlyclean-am
+
+distclean: distclean-am
+ -rm -f ./$(DEPDIR)/arcball.Po
+ -rm -f ./$(DEPDIR)/map-object-apply.Po
+ -rm -f ./$(DEPDIR)/map-object-image.Po
+ -rm -f ./$(DEPDIR)/map-object-main.Po
+ -rm -f ./$(DEPDIR)/map-object-preview.Po
+ -rm -f ./$(DEPDIR)/map-object-shade.Po
+ -rm -f ./$(DEPDIR)/map-object-stock.Po
+ -rm -f ./$(DEPDIR)/map-object-ui.Po
+ -rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+ distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-libexecPROGRAMS
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+ -rm -f ./$(DEPDIR)/arcball.Po
+ -rm -f ./$(DEPDIR)/map-object-apply.Po
+ -rm -f ./$(DEPDIR)/map-object-image.Po
+ -rm -f ./$(DEPDIR)/map-object-main.Po
+ -rm -f ./$(DEPDIR)/map-object-preview.Po
+ -rm -f ./$(DEPDIR)/map-object-shade.Po
+ -rm -f ./$(DEPDIR)/map-object-stock.Po
+ -rm -f ./$(DEPDIR)/map-object-ui.Po
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+ mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-libexecPROGRAMS
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \
+ clean-generic clean-libexecPROGRAMS clean-libtool \
+ cscopelist-am ctags ctags-am distclean distclean-compile \
+ distclean-generic distclean-libtool distclean-tags distdir dvi \
+ dvi-am html html-am info info-am install install-am \
+ install-data install-data-am install-dvi install-dvi-am \
+ install-exec install-exec-am install-html install-html-am \
+ install-info install-info-am install-libexecPROGRAMS \
+ install-man install-pdf install-pdf-am install-ps \
+ install-ps-am install-strip installcheck installcheck-am \
+ installdirs maintainer-clean maintainer-clean-generic \
+ mostlyclean mostlyclean-compile mostlyclean-generic \
+ mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \
+ uninstall-am uninstall-libexecPROGRAMS
+
+.PRECIOUS: Makefile
+
+
+# `windres` seems a very stupid tool and it breaks with double shlashes
+# in parameter paths. Strengthen the rule a little.
+@HAVE_WINDRES_TRUE@%.rc.o:
+@HAVE_WINDRES_TRUE@ $(WINDRES) --define ORIGINALFILENAME_STR="$*$(EXEEXT)" \
+@HAVE_WINDRES_TRUE@ --define INTERNALNAME_STR="$*" \
+@HAVE_WINDRES_TRUE@ --define TOP_SRCDIR="`echo $(top_srcdir) | sed 's*//*/*'`" \
+@HAVE_WINDRES_TRUE@ -I"`echo $(top_srcdir)/app | sed 's%/\+%/%'`" \
+@HAVE_WINDRES_TRUE@ -I"`echo $(top_builddir)/app | sed 's%/\+%/%'`"\
+@HAVE_WINDRES_TRUE@ -I"`echo $(top_builddir) | sed 's%/\+%/%'`"\
+@HAVE_WINDRES_TRUE@ $(GIMPPLUGINRC) $@
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plug-ins/map-object/README b/plug-ins/map-object/README
new file mode 100644
index 0000000..6c6e228
--- /dev/null
+++ b/plug-ins/map-object/README
@@ -0,0 +1,61 @@
+
+MapObject 1.2.0 -- image filter plug-in for GIMP
+===========================================================
+
+Copyright (C) 1996-98 Tom Bech
+Copyright (C) 1996-98 Federico Mena Quintero
+
+Released 16th of July, 1998
+
+You can reach the author(s) via E-mail:
+tomb@gimp.org (Tom) or quartic@gimp.org (Federico).
+
+GIMP was developed by Peter Mattis and Spencer Kimball.
+You can contact them at gimp@xcf.berkeley.edu.
+
+There's more GIMP stuff on our home pages:
+http://www.ii.uib.no/~tomb/gimp.html (Tom's page)
+http://www.nuclecu.unam.mx/~federico/gimp/index.html (Quartic's page)
+
+Legal stuff
+===========
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+In other words, you can't sue us for whatever happens while using this ;)
+
+Compiling
+=========
+
+To compile you'll need GIMP 1.0 and GTK+ 1.0.4 or later.
+You'll also need GCK 1.00 (http://www.ii.uib.no/~tomb/gck.html)
+
+1) Edit the Makefile to reflect your system setup.
+
+2) Type "make" and then "make install"
+
+You should now be ready to run. "make install" puts the executable "MapObject"
+in the standard plug-in directory.
+
+Documentation
+=============
+
+Ahem.. right.. ;) ..I'll get around to it eventually.
+
+Please send me a mail if you find any bugs.
+
+Have fun,
+
+Tom
+
diff --git a/plug-ins/map-object/TODO b/plug-ins/map-object/TODO
new file mode 100644
index 0000000..fc9b41c
--- /dev/null
+++ b/plug-ins/map-object/TODO
@@ -0,0 +1,18 @@
+
+The MapObject plug-in "todo"-list:
+=================================
+
+* Interactive positioning of directional light
+* Rotation by mouse (doesn't work correctly yet and is disabled).
+* Faster mapping code
+* Multiple light-sources
+* More objects?
+* Presets (including save/load)
+* Gray-scale/channels support
+* Documentation
+* Autoconf/automake stuff?
+
+If there's anything you would like to add, feel free
+to send me any suggestions for new stuff or improvements.
+
+Tom
diff --git a/plug-ins/map-object/arcball.c b/plug-ins/map-object/arcball.c
new file mode 100644
index 0000000..1f509d4
--- /dev/null
+++ b/plug-ins/map-object/arcball.c
@@ -0,0 +1,515 @@
+/************************************/
+/* ArcBall.c (c) Ken Shoemake, 1993 */
+/* Modified by Tom Bech, 1996 */
+/************************************/
+
+#include "config.h"
+
+#include <libgimp/gimp.h>
+
+#include "arcball.h"
+
+/* Global variables */
+/* ================ */
+
+Quat qOne = { 0, 0, 0, 1 };
+
+static HVect center;
+static double radius;
+static Quat qNow, qDown, qDrag;
+static HVect vNow, vDown, vFrom, vTo, vrFrom, vrTo;
+static HMatrix mNow, mDown;
+static unsigned int showResult, dragging;
+static ConstraintSet sets[NSets];
+static int setSizes[NSets];
+static AxisSet axisSet;
+static int axisIndex;
+
+static HMatrix mId =
+{
+ { 1, 0, 0, 0 },
+ { 0, 1, 0, 0 },
+ { 0, 0, 1, 0 },
+ { 0, 0, 0, 1 }
+};
+
+static double otherAxis[][4] =
+{
+ {-0.48, 0.80, 0.36, 1}
+};
+
+/* Internal methods */
+/* ================ */
+
+static void Qt_ToMatrix(Quat q,HMatrix out);
+static Quat Qt_Conj(Quat q);
+static Quat Qt_Mul(Quat qL, Quat qR);
+static Quat Qt_FromBallPoints(HVect from, HVect to);
+static void Qt_ToBallPoints(Quat q, HVect *arcFrom, HVect *arcTo);
+
+static HVect V3_(double x, double y, double z);
+static double V3_Norm(HVect v);
+static HVect V3_Unit(HVect v);
+static HVect V3_Scale(HVect v, double s);
+static HVect V3_Negate(HVect v);
+/*
+static HVect V3_Add(HVect v1, HVect v2);
+*/
+static HVect V3_Sub(HVect v1, HVect v2);
+static double V3_Dot(HVect v1, HVect v2);
+/*
+static HVect V3_Cross(HVect v1, HVect v2);
+static HVect V3_Bisect(HVect v0, HVect v1);
+*/
+
+static HVect MouseOnSphere(HVect mouse, HVect ballCenter, double ballRadius);
+static HVect ConstrainToAxis(HVect loose, HVect axis);
+static int NearestConstraintAxis(HVect loose, HVect *axes, int nAxes);
+
+/* Establish reasonable initial values for controller. */
+/* =================================================== */
+
+void
+ArcBall_Init (void)
+{
+ int i;
+
+ center = qOne;
+ radius = 1.0;
+ vDown = vNow = qOne;
+ qDown = qNow = qOne;
+ for (i=15; i>=0; i--)
+ ((double *)mNow)[i] = ((double *)mDown)[i] = ((double *)mId)[i];
+
+ showResult = dragging = FALSE;
+ axisSet = NoAxes;
+ sets[CameraAxes] = mId[X];
+ setSizes[CameraAxes] = 3;
+ sets[BodyAxes] = mDown[X];
+ setSizes[BodyAxes] = 3;
+ sets[OtherAxes] = otherAxis[X];
+ setSizes[OtherAxes] = 1;
+}
+
+/* Set the center and size of the controller. */
+/* ========================================== */
+
+void
+ArcBall_Place (HVect Center,
+ double Radius)
+{
+ center = Center;
+ radius = Radius;
+}
+
+/* Incorporate new mouse position. */
+/* =============================== */
+
+void
+ArcBall_Mouse (HVect v_Now)
+{
+ vNow = v_Now;
+}
+
+/* Choose a constraint set, or none. */
+/* ================================= */
+
+void
+ArcBall_UseSet (AxisSet axis_Set)
+{
+ if (!dragging) axisSet = axis_Set;
+}
+
+/* Using vDown, vNow, dragging, and axisSet, compute rotation etc. */
+/* =============================================================== */
+
+void
+ArcBall_Update (void)
+{
+ int setSize = setSizes[axisSet];
+ HVect *set = (HVect *)(sets[axisSet]);
+
+ vFrom = MouseOnSphere(vDown, center, radius);
+ vTo = MouseOnSphere(vNow, center, radius);
+ if (dragging)
+ {
+ if (axisSet!=NoAxes)
+ {
+ vFrom = ConstrainToAxis(vFrom, set[axisIndex]);
+ vTo = ConstrainToAxis(vTo, set[axisIndex]);
+ }
+ qDrag = Qt_FromBallPoints(vFrom, vTo);
+ qNow = Qt_Mul(qDrag, qDown);
+ }
+ else
+ {
+ if (axisSet!=NoAxes) axisIndex = NearestConstraintAxis(vTo, set, setSize);
+ }
+ Qt_ToBallPoints(qDown, &vrFrom, &vrTo);
+ Qt_ToMatrix(Qt_Conj(qNow), mNow); /* Gives transpose for GL. */
+}
+
+/* Return rotation matrix defined by controller use. */
+/* ================================================= */
+
+void
+ArcBall_Value (HMatrix m_Now)
+{
+ ArcBall_CopyMat (mNow, m_Now);
+}
+
+/* Extract rotation angles from matrix */
+/* =================================== */
+
+void
+ArcBall_Values (double *alpha,
+ double *beta,
+ double *gamma)
+{
+ if ((*beta=asin(-mNow[0][2]))!=0.0)
+ {
+ *gamma=atan2(mNow[1][2],mNow[2][2]);
+ *alpha=atan2(mNow[0][1],mNow[0][0]);
+ }
+ else
+ {
+ *gamma=atan2(mNow[1][0],mNow[1][1]);
+ *alpha=0.0;
+ }
+}
+
+/* Begin drag sequence. */
+/* ==================== */
+
+void
+ArcBall_BeginDrag (void)
+{
+ dragging = TRUE;
+ vDown = vNow;
+}
+
+/* Stop drag sequence. */
+/* =================== */
+
+void
+ArcBall_EndDrag (void)
+{
+ dragging = FALSE;
+ qDown = qNow;
+
+ ArcBall_CopyMat (mNow, mDown);
+}
+
+/*===================*/
+/***** BallAux.c *****/
+/*===================*/
+
+/* Return quaternion product qL * qR. Note: order is important! */
+/* To combine rotations, use the product Mul(qSecond, qFirst), */
+/* which gives the effect of rotating by qFirst then qSecond. */
+/* ============================================================= */
+
+static Quat
+Qt_Mul (Quat qL,
+ Quat qR)
+{
+ Quat qq;
+ qq.w = qL.w*qR.w - qL.x*qR.x - qL.y*qR.y - qL.z*qR.z;
+ qq.x = qL.w*qR.x + qL.x*qR.w + qL.y*qR.z - qL.z*qR.y;
+ qq.y = qL.w*qR.y + qL.y*qR.w + qL.z*qR.x - qL.x*qR.z;
+ qq.z = qL.w*qR.z + qL.z*qR.w + qL.x*qR.y - qL.y*qR.x;
+ return (qq);
+}
+
+/* Construct rotation matrix from (possibly non-unit) quaternion. */
+/* Assumes matrix is used to multiply column vector on the left: */
+/* vnew = mat vold. Works correctly for right-handed coordinate */
+/* system and right-handed rotations. */
+/* ============================================================== */
+
+static void
+Qt_ToMatrix (Quat q,
+ HMatrix out)
+{
+ double Nq = q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w;
+ double s = (Nq > 0.0) ? (2.0 / Nq) : 0.0;
+ double xs = q.x*s, ys = q.y*s, zs = q.z*s;
+ double wx = q.w*xs, wy = q.w*ys, wz = q.w*zs;
+ double xx = q.x*xs, xy = q.x*ys, xz = q.x*zs;
+ double yy = q.y*ys, yz = q.y*zs, zz = q.z*zs;
+ out[X][X] = 1.0 - (yy + zz); out[Y][X] = xy + wz; out[Z][X] = xz - wy;
+ out[X][Y] = xy - wz; out[Y][Y] = 1.0 - (xx + zz); out[Z][Y] = yz + wx;
+ out[X][Z] = xz + wy; out[Y][Z] = yz - wx; out[Z][Z] = 1.0 - (xx + yy);
+ out[X][W] = out[Y][W] = out[Z][W] = out[W][X] = out[W][Y] = out[W][Z] = 0.0;
+ out[W][W] = 1.0;
+}
+
+/* Return conjugate of quaternion. */
+/* =============================== */
+
+static Quat
+Qt_Conj (Quat q)
+{
+ Quat qq;
+ qq.x = -q.x; qq.y = -q.y; qq.z = -q.z; qq.w = q.w;
+ return (qq);
+}
+
+/* Return vector formed from components */
+/* ==================================== */
+
+static HVect
+V3_ (double x,
+ double y,
+ double z)
+{
+ HVect v;
+ v.x = x; v.y = y; v.z = z; v.w = 0;
+ return (v);
+}
+
+/* Return norm of v, defined as sum of squares of components */
+/* ========================================================= */
+
+static double
+V3_Norm (HVect v)
+{
+ return ( v.x*v.x + v.y*v.y + v.z*v.z );
+}
+
+/* Return unit magnitude vector in direction of v */
+/* ============================================== */
+
+static HVect
+V3_Unit (HVect v)
+{
+ static HVect u = {0, 0, 0, 0};
+ double vlen = sqrt(V3_Norm(v));
+
+ if (vlen != 0.0)
+ {
+ u.x = v.x/vlen;
+ u.y = v.y/vlen;
+ u.z = v.z/vlen;
+ }
+ return (u);
+}
+
+/* Return version of v scaled by s */
+/* =============================== */
+
+static HVect
+V3_Scale (HVect v,
+ double s)
+{
+ HVect u;
+ u.x = s*v.x; u.y = s*v.y; u.z = s*v.z; u.w = v.w;
+ return (u);
+}
+
+/* Return negative of v */
+/* ==================== */
+
+static HVect
+V3_Negate (HVect v)
+{
+ static HVect u = {0, 0, 0, 0};
+ u.x = -v.x; u.y = -v.y; u.z = -v.z;
+ return (u);
+}
+
+/* Return sum of v1 and v2 */
+/* ======================= */
+/*
+static HVect
+V3_Add (HVect v1,
+ HVect v2)
+{
+ static HVect v = {0, 0, 0, 0};
+ v.x = v1.x+v2.x; v.y = v1.y+v2.y; v.z = v1.z+v2.z;
+ return (v);
+}
+*/
+/* Return difference of v1 minus v2 */
+/* ================================ */
+
+static HVect
+V3_Sub (HVect v1,
+ HVect v2)
+{
+ static HVect v = {0, 0, 0, 0};
+ v.x = v1.x-v2.x; v.y = v1.y-v2.y; v.z = v1.z-v2.z;
+ return (v);
+}
+
+/* Halve arc between unit vectors v0 and v1. */
+/* ========================================= */
+/*
+static HVect
+V3_Bisect (HVect v0,
+ HVect v1)
+{
+ HVect v = {0, 0, 0, 0};
+ double Nv;
+
+ v = V3_Add(v0, v1);
+ Nv = V3_Norm(v);
+ if (Nv < 1.0e-5) v = V3_(0, 0, 1);
+ else v = V3_Scale(v, 1/sqrt(Nv));
+ return (v);
+}
+*/
+
+/* Return dot product of v1 and v2 */
+/* =============================== */
+
+static double
+V3_Dot (HVect v1,
+ HVect v2)
+{
+ return (v1.x*v2.x + v1.y*v2.y + v1.z*v2.z);
+}
+
+
+/* Return cross product, v1 x v2 */
+/* ============================= */
+/*
+static HVect
+V3_Cross (HVect v1,
+ HVect v2)
+{
+ static HVect v = {0, 0, 0, 0};
+ v.x = v1.y*v2.z-v1.z*v2.y;
+ v.y = v1.z*v2.x-v1.x*v2.z;
+ v.z = v1.x*v2.y-v1.y*v2.x;
+ return (v);
+}
+*/
+
+void
+ArcBall_CopyMat (HMatrix inm,
+ HMatrix outm)
+{
+ int x=0,y=0;
+
+ for (x=0;x<4;x++)
+ {
+ for (y=0;y<4;y++)
+ {
+ outm[y][x]=inm[y][x];
+ }
+ }
+}
+
+/*=====================================================*/
+/**** BallMath.c - Essential routines for ArcBall. ****/
+/*=====================================================*/
+
+/* Convert window coordinates to sphere coordinates. */
+/* ================================================= */
+
+static HVect
+MouseOnSphere (HVect mouse,
+ HVect ballCenter,
+ double ballRadius)
+{
+ HVect ballMouse;
+ register double mag;
+
+ ballMouse.x = (mouse.x - ballCenter.x) / ballRadius;
+ ballMouse.y = (mouse.y - ballCenter.y) / ballRadius;
+ mag = ballMouse.x*ballMouse.x + ballMouse.y*ballMouse.y;
+ if (mag > 1.0)
+ {
+ register double scale = 1.0/sqrt(mag);
+ ballMouse.x *= scale; ballMouse.y *= scale;
+ ballMouse.z = 0.0;
+ }
+ else ballMouse.z = sqrt(1 - mag);
+ ballMouse.w = 0.0;
+ return (ballMouse);
+}
+
+/* Construct a unit quaternion from two points on unit sphere */
+/* ========================================================== */
+
+static Quat
+Qt_FromBallPoints (HVect from,
+ HVect to)
+{
+ Quat qu;
+ qu.x = from.y*to.z - from.z*to.y;
+ qu.y = from.z*to.x - from.x*to.z;
+ qu.z = from.x*to.y - from.y*to.x;
+ qu.w = from.x*to.x + from.y*to.y + from.z*to.z;
+ return (qu);
+}
+
+/* Convert a unit quaternion to two points on unit sphere */
+/* ====================================================== */
+
+static void
+Qt_ToBallPoints (Quat q,
+ HVect *arcFrom,
+ HVect *arcTo)
+{
+ double s;
+
+ s = sqrt(q.x*q.x + q.y*q.y);
+ if (s == 0.0) *arcFrom = V3_(0.0, 1.0, 0.0);
+ else *arcFrom = V3_(-q.y/s, q.x/s, 0.0);
+ arcTo->x = q.w*arcFrom->x - q.z*arcFrom->y;
+ arcTo->y = q.w*arcFrom->y + q.z*arcFrom->x;
+ arcTo->z = q.x*arcFrom->y - q.y*arcFrom->x;
+ if (q.w < 0.0) *arcFrom = V3_(-arcFrom->x, -arcFrom->y, 0.0);
+}
+
+/* Force sphere point to be perpendicular to axis. */
+/* =============================================== */
+
+static HVect
+ConstrainToAxis (HVect loose,
+ HVect axis)
+{
+ HVect onPlane;
+ register double norm;
+
+ onPlane = V3_Sub(loose, V3_Scale(axis, V3_Dot(axis, loose)));
+ norm = V3_Norm(onPlane);
+ if (norm > 0.0)
+ {
+ if (onPlane.z < 0.0) onPlane = V3_Negate(onPlane);
+ return ( V3_Scale(onPlane, 1/sqrt(norm)) );
+ }
+ /* else drop through */
+ /* ================= */
+
+ if (axis.z == 1) onPlane = V3_(1.0, 0.0, 0.0);
+ else onPlane = V3_Unit(V3_(-axis.y, axis.x, 0.0));
+ return (onPlane);
+}
+
+/* Find the index of nearest arc of axis set. */
+/* ========================================== */
+
+static int
+NearestConstraintAxis (HVect loose,
+ HVect *axes,
+ int nAxes)
+{
+ HVect onPlane;
+ register double max, dot;
+ register int i, nearest;
+ max = -1; nearest = 0;
+
+ for (i=0; i<nAxes; i++)
+ {
+ onPlane = ConstrainToAxis(loose, axes[i]);
+ dot = V3_Dot(onPlane, loose);
+ if (dot>max)
+ {
+ max = dot; nearest = i;
+ }
+ }
+ return (nearest);
+}
diff --git a/plug-ins/map-object/arcball.h b/plug-ins/map-object/arcball.h
new file mode 100644
index 0000000..f0b56ce
--- /dev/null
+++ b/plug-ins/map-object/arcball.h
@@ -0,0 +1,50 @@
+#ifndef __ARCBALL_H__
+#define __ARCBALL_H__
+
+typedef struct
+{
+ double x, y, z, w;
+} Quat;
+
+enum QuatPart
+{
+ X,
+ Y,
+ Z,
+ W,
+ QuatLen
+};
+
+typedef Quat HVect;
+
+typedef double HMatrix[QuatLen][QuatLen];
+
+typedef enum AxisSet
+{
+ NoAxes,
+ CameraAxes,
+ BodyAxes,
+ OtherAxes,
+ NSets
+} AxisSet;
+
+typedef double *ConstraintSet;
+
+extern Quat qOne;
+
+void ArcBall_Init (void);
+void ArcBall_Place (HVect Center,
+ double Radius);
+void ArcBall_UseSet (AxisSet axis_Set);
+void ArcBall_Update (void);
+void ArcBall_Value (HMatrix m_Now);
+void ArcBall_Values (double *alpha,
+ double *beta,
+ double *gamma);
+void ArcBall_BeginDrag (void);
+void ArcBall_EndDrag (void);
+void ArcBall_Mouse (HVect v_Now);
+void ArcBall_CopyMat (HMatrix inm,
+ HMatrix outm);
+
+#endif /* __ARCBALL_H__ */
diff --git a/plug-ins/map-object/map-object-apply.c b/plug-ins/map-object/map-object-apply.c
new file mode 100644
index 0000000..0a2fb9b
--- /dev/null
+++ b/plug-ins/map-object/map-object-apply.c
@@ -0,0 +1,328 @@
+/******************************************************/
+/* Apply mapping and shading on the whole input image */
+/******************************************************/
+
+#include "config.h"
+
+#include <string.h>
+
+#include <gtk/gtk.h>
+
+#include <libgimp/gimp.h>
+#include <libgimp/gimpui.h>
+
+#include "map-object-main.h"
+#include "map-object-image.h"
+#include "map-object-shade.h"
+#include "map-object-apply.h"
+
+#include "libgimp/stdplugins-intl.h"
+
+
+/*************/
+/* Main loop */
+/*************/
+
+gdouble imat[4][4];
+gfloat rotmat[16];
+static gfloat a[16], b[16];
+
+void
+init_compute (void)
+{
+ gint i;
+
+ switch (mapvals.maptype)
+ {
+ case MAP_SPHERE:
+
+ /* Rotate the equator/northpole axis */
+ /* ================================= */
+
+ gimp_vector3_set (&mapvals.firstaxis, 0.0, 0.0, -1.0);
+ gimp_vector3_set (&mapvals.secondaxis, 0.0, 1.0, 0.0);
+
+ gimp_vector3_rotate (&mapvals.firstaxis,
+ gimp_deg_to_rad (mapvals.alpha),
+ gimp_deg_to_rad (mapvals.beta),
+ gimp_deg_to_rad (mapvals.gamma));
+ gimp_vector3_rotate (&mapvals.secondaxis,
+ gimp_deg_to_rad (mapvals.alpha),
+ gimp_deg_to_rad (mapvals.beta),
+ gimp_deg_to_rad (mapvals.gamma));
+
+ /* Compute the 2D bounding box of the sphere spanned by the axis */
+ /* ============================================================= */
+
+ compute_bounding_box ();
+
+ get_ray_color = get_ray_color_sphere;
+
+ break;
+
+ case MAP_PLANE:
+
+ /* Rotate the plane axis */
+ /* ===================== */
+
+ gimp_vector3_set (&mapvals.firstaxis, 1.0, 0.0, 0.0);
+ gimp_vector3_set (&mapvals.secondaxis, 0.0, 1.0, 0.0);
+ gimp_vector3_set (&mapvals.normal, 0.0, 0.0, 1.0);
+
+ gimp_vector3_rotate (&mapvals.firstaxis,
+ gimp_deg_to_rad (mapvals.alpha),
+ gimp_deg_to_rad (mapvals.beta),
+ gimp_deg_to_rad (mapvals.gamma));
+ gimp_vector3_rotate (&mapvals.secondaxis,
+ gimp_deg_to_rad (mapvals.alpha),
+ gimp_deg_to_rad (mapvals.beta),
+ gimp_deg_to_rad (mapvals.gamma));
+
+ mapvals.normal = gimp_vector3_cross_product (&mapvals.firstaxis,
+ &mapvals.secondaxis);
+
+ if (mapvals.normal.z < 0.0)
+ gimp_vector3_mul (&mapvals.normal, -1.0);
+
+ /* Initialize intersection matrix */
+ /* ============================== */
+
+ imat[0][1] = -mapvals.firstaxis.x;
+ imat[1][1] = -mapvals.firstaxis.y;
+ imat[2][1] = -mapvals.firstaxis.z;
+
+ imat[0][2] = -mapvals.secondaxis.x;
+ imat[1][2] = -mapvals.secondaxis.y;
+ imat[2][2] = -mapvals.secondaxis.z;
+
+ imat[0][3] = mapvals.position.x - mapvals.viewpoint.x;
+ imat[1][3] = mapvals.position.y - mapvals.viewpoint.y;
+ imat[2][3] = mapvals.position.z - mapvals.viewpoint.z;
+
+ get_ray_color = get_ray_color_plane;
+
+ break;
+
+ case MAP_BOX:
+ get_ray_color = get_ray_color_box;
+
+ gimp_vector3_set (&mapvals.firstaxis, 1.0, 0.0, 0.0);
+ gimp_vector3_set (&mapvals.secondaxis, 0.0, 1.0, 0.0);
+ gimp_vector3_set (&mapvals.normal, 0.0, 0.0, 1.0);
+
+ ident_mat (rotmat);
+
+ rotatemat (mapvals.alpha, &mapvals.firstaxis, a);
+
+ matmul (a, rotmat, b);
+
+ memcpy (rotmat, b, sizeof (gfloat) * 16);
+
+ rotatemat (mapvals.beta, &mapvals.secondaxis, a);
+ matmul (a, rotmat, b);
+
+ memcpy (rotmat, b, sizeof (gfloat) * 16);
+
+ rotatemat (mapvals.gamma, &mapvals.normal, a);
+ matmul (a, rotmat, b);
+
+ memcpy (rotmat, b, sizeof (gfloat) * 16);
+
+ /* Set up pixel regions for the box face images */
+ /* ============================================ */
+
+ for (i = 0; i < 6; i++)
+ {
+ box_drawable_ids[i] = mapvals.boxmap_id[i];
+
+ box_buffers[i] = gimp_drawable_get_buffer (box_drawable_ids[i]);
+ }
+
+ break;
+
+ case MAP_CYLINDER:
+ get_ray_color = get_ray_color_cylinder;
+
+ gimp_vector3_set (&mapvals.firstaxis, 1.0, 0.0, 0.0);
+ gimp_vector3_set (&mapvals.secondaxis, 0.0, 1.0, 0.0);
+ gimp_vector3_set (&mapvals.normal, 0.0, 0.0, 1.0);
+
+ ident_mat (rotmat);
+
+ rotatemat (mapvals.alpha, &mapvals.firstaxis, a);
+
+ matmul (a, rotmat, b);
+
+ memcpy (rotmat, b, sizeof (gfloat) * 16);
+
+ rotatemat (mapvals.beta, &mapvals.secondaxis, a);
+ matmul (a, rotmat, b);
+
+ memcpy (rotmat, b, sizeof (gfloat) * 16);
+
+ rotatemat (mapvals.gamma, &mapvals.normal, a);
+ matmul (a, rotmat, b);
+
+ memcpy (rotmat, b, sizeof (gfloat) * 16);
+
+ /* Set up pixel regions for the cylinder cap images */
+ /* ================================================ */
+
+ for (i = 0; i < 2; i++)
+ {
+ cylinder_drawable_ids[i] = mapvals.cylindermap_id[i];
+
+ cylinder_buffers[i] = gimp_drawable_get_buffer (cylinder_drawable_ids[i]);
+ }
+ break;
+ }
+
+ max_depth = (gint) mapvals.maxdepth;
+}
+
+static void
+render (gdouble x,
+ gdouble y,
+ GimpRGB *col,
+ gpointer data)
+{
+ GimpVector3 pos;
+
+ pos.x = x / (gdouble) width;
+ pos.y = y / (gdouble) height;
+ pos.z = 0.0;
+
+ *col = get_ray_color (&pos);
+}
+
+static void
+show_progress (gint min,
+ gint max,
+ gint curr,
+ gpointer data)
+{
+ gimp_progress_update ((gdouble) curr / (gdouble) max);
+}
+
+/**************************************************/
+/* Performs map-to-sphere on the whole input image */
+/* and updates or creates a new GIMP image. */
+/**************************************************/
+
+void
+compute_image (void)
+{
+ gint xcount, ycount;
+ GimpRGB color;
+ glong progress_counter = 0;
+ GimpVector3 p;
+ gint32 new_image_id = -1;
+ gint32 new_layer_id = -1;
+ gboolean insert_layer = FALSE;
+
+ init_compute ();
+
+ if (mapvals.create_new_image)
+ {
+ new_image_id = gimp_image_new (width, height, GIMP_RGB);
+ }
+ else
+ {
+ new_image_id = image_id;
+ }
+
+ gimp_image_undo_group_start (new_image_id);
+
+ if (mapvals.create_new_image ||
+ mapvals.create_new_layer ||
+ (mapvals.transparent_background &&
+ ! gimp_drawable_has_alpha (output_drawable_id)))
+ {
+ gchar *layername[] = {_("Map to plane"),
+ _("Map to sphere"),
+ _("Map to box"),
+ _("Map to cylinder"),
+ _("Background")};
+
+ new_layer_id = gimp_layer_new (new_image_id,
+ layername[mapvals.create_new_image ? 4 :
+ mapvals.maptype],
+ width, height,
+ mapvals.transparent_background ?
+ GIMP_RGBA_IMAGE :
+ GIMP_RGB_IMAGE,
+ 100.0,
+ gimp_image_get_default_new_layer_mode (new_image_id));
+
+ insert_layer = TRUE;
+ output_drawable_id = new_layer_id;
+ }
+
+ dest_buffer = gimp_drawable_get_shadow_buffer (output_drawable_id);
+
+ switch (mapvals.maptype)
+ {
+ case MAP_PLANE:
+ gimp_progress_init (_("Map to plane"));
+ break;
+ case MAP_SPHERE:
+ gimp_progress_init (_("Map to sphere"));
+ break;
+ case MAP_BOX:
+ gimp_progress_init (_("Map to box"));
+ break;
+ case MAP_CYLINDER:
+ gimp_progress_init (_("Map to cylinder"));
+ break;
+ }
+
+ if (! mapvals.antialiasing)
+ {
+ for (ycount = 0; ycount < height; ycount++)
+ {
+ for (xcount = 0; xcount < width; xcount++)
+ {
+ p = int_to_pos (xcount, ycount);
+ color = (* get_ray_color) (&p);
+ poke (xcount, ycount, &color, NULL);
+
+ progress_counter++;
+ }
+
+ gimp_progress_update ((gdouble) progress_counter /
+ (gdouble) maxcounter);
+ }
+ }
+ else
+ {
+ gimp_adaptive_supersample_area (0, 0,
+ width - 1, height - 1,
+ max_depth,
+ mapvals.pixelthreshold,
+ render,
+ NULL,
+ poke,
+ NULL,
+ show_progress,
+ NULL);
+ }
+
+ gimp_progress_update (1.0);
+
+ g_object_unref (source_buffer);
+ g_object_unref (dest_buffer);
+
+ if (insert_layer)
+ gimp_image_insert_layer (new_image_id, new_layer_id, -1, 0);
+
+ gimp_drawable_merge_shadow (output_drawable_id, TRUE);
+ gimp_drawable_update (output_drawable_id, 0, 0, width, height);
+
+ if (new_image_id != image_id)
+ {
+ gimp_display_new (new_image_id);
+ gimp_displays_flush ();
+ }
+
+ gimp_image_undo_group_end (new_image_id);
+}
diff --git a/plug-ins/map-object/map-object-apply.h b/plug-ins/map-object/map-object-apply.h
new file mode 100644
index 0000000..7b06eda
--- /dev/null
+++ b/plug-ins/map-object/map-object-apply.h
@@ -0,0 +1,10 @@
+#ifndef __MAPOBJECT_APPLY_H__
+#define __MAPOBJECT_APPLY_H__
+
+extern gdouble imat[4][4];
+extern gfloat rotmat[16];
+
+void init_compute (void);
+void compute_image (void);
+
+#endif /* __MAPOBJECT_APPLY_H__ */
diff --git a/plug-ins/map-object/map-object-image.c b/plug-ins/map-object/map-object-image.c
new file mode 100644
index 0000000..1f16279
--- /dev/null
+++ b/plug-ins/map-object/map-object-image.c
@@ -0,0 +1,352 @@
+/*********************************************************/
+/* Image manipulation routines. Calls mapobject_shade.c */
+/* functions to compute the shading of the image at each */
+/* pixel. These routines are used by the functions in */
+/* mapobject_preview.c and mapobject_apply.c */
+/*********************************************************/
+
+#include "config.h"
+
+#include <string.h>
+
+#include <sys/types.h>
+
+#include <gtk/gtk.h>
+
+#include <libgimp/gimp.h>
+#include <libgimp/gimpui.h>
+
+#include "map-object-main.h"
+#include "map-object-preview.h"
+#include "map-object-shade.h"
+#include "map-object-ui.h"
+#include "map-object-image.h"
+
+
+gint32 input_drawable_id;
+gint32 output_drawable_id;
+GeglBuffer *source_buffer;
+GeglBuffer *dest_buffer;
+
+gint32 box_drawable_ids[6];
+GeglBuffer *box_buffers[6];
+
+gint32 cylinder_drawable_ids[2];
+GeglBuffer *cylinder_buffers[2];
+
+guchar *preview_rgb_data = NULL;
+gint preview_rgb_stride;
+cairo_surface_t *preview_surface = NULL;
+
+glong maxcounter, old_depth, max_depth;
+gint width, height, image_id;
+GimpRGB background;
+
+gint border_x, border_y, border_w, border_h;
+
+/******************/
+/* Implementation */
+/******************/
+
+GimpRGB
+peek (gint x,
+ gint y)
+{
+ GimpRGB color;
+
+ gegl_buffer_sample (source_buffer, x, y, NULL,
+ &color, babl_format ("R'G'B'A double"),
+ GEGL_SAMPLER_NEAREST, GEGL_ABYSS_NONE);
+
+ if (! babl_format_has_alpha (gegl_buffer_get_format (source_buffer)))
+ color.a = 1.0;
+
+ return color;
+}
+
+static GimpRGB
+peek_box_image (gint image,
+ gint x,
+ gint y)
+{
+ GimpRGB color;
+
+ gegl_buffer_sample (box_buffers[image], x, y, NULL,
+ &color, babl_format ("R'G'B'A double"),
+ GEGL_SAMPLER_NEAREST, GEGL_ABYSS_NONE);
+
+ if (! babl_format_has_alpha (gegl_buffer_get_format (box_buffers[image])))
+ color.a = 1.0;
+
+ return color;
+}
+
+static GimpRGB
+peek_cylinder_image (gint image,
+ gint x,
+ gint y)
+{
+ GimpRGB color;
+
+ gegl_buffer_sample (cylinder_buffers[image], x, y, NULL,
+ &color, babl_format ("R'G'B'A double"),
+ GEGL_SAMPLER_NEAREST, GEGL_ABYSS_NONE);
+
+ if (! babl_format_has_alpha (gegl_buffer_get_format (cylinder_buffers[image])))
+ color.a = 1.0;
+
+ return color;
+}
+
+void
+poke (gint x,
+ gint y,
+ GimpRGB *color,
+ gpointer user_data)
+{
+ gegl_buffer_set (dest_buffer, GEGL_RECTANGLE (x, y, 1, 1), 0,
+ babl_format ("R'G'B'A double"), color,
+ GEGL_AUTO_ROWSTRIDE);
+}
+
+gint
+checkbounds (gint x,
+ gint y)
+{
+ if (x < border_x ||
+ y < border_y ||
+ x >= border_x + border_w ||
+ y >= border_y + border_h)
+ return FALSE;
+ else
+ return TRUE;
+}
+
+static gint
+checkbounds_box_image (gint image,
+ gint x,
+ gint y)
+{
+ gint w, h;
+
+ w = gegl_buffer_get_width (box_buffers[image]);
+ h = gegl_buffer_get_height (box_buffers[image]);
+
+ if (x < 0 || y < 0 || x >= w || y >= h)
+ return FALSE ;
+ else
+ return TRUE ;
+}
+
+static gint
+checkbounds_cylinder_image (gint image,
+ gint x,
+ gint y)
+{
+ gint w, h;
+
+ w = gegl_buffer_get_width (cylinder_buffers[image]);
+ h = gegl_buffer_get_height (cylinder_buffers[image]);
+
+ if (x < 0 || y < 0 || x >= w || y >= h)
+ return FALSE;
+ else
+ return TRUE;
+}
+
+GimpVector3
+int_to_pos (gint x,
+ gint y)
+{
+ GimpVector3 pos;
+
+ pos.x = (gdouble) x / (gdouble) width;
+ pos.y = (gdouble) y / (gdouble) height;
+ pos.z = 0.0;
+
+ return pos;
+}
+
+void
+pos_to_int (gdouble x,
+ gdouble y,
+ gint *scr_x,
+ gint *scr_y)
+{
+ *scr_x = (gint) ((x * (gdouble) width));
+ *scr_y = (gint) ((y * (gdouble) height));
+}
+
+/**********************************************/
+/* Compute the image color at pos (u,v) using */
+/* Quartics bilinear interpolation stuff. */
+/**********************************************/
+
+GimpRGB
+get_image_color (gdouble u,
+ gdouble v,
+ gint *inside)
+{
+ gint x1, y1, x2, y2;
+ GimpRGB p[4];
+
+ pos_to_int (u, v, &x1, &y1);
+
+ if (mapvals.tiled == TRUE)
+ {
+ *inside = TRUE;
+
+ if (x1 < 0) x1 = (width-1) - (-x1 % width);
+ else x1 = x1 % width;
+
+ if (y1 < 0) y1 = (height-1) - (-y1 % height);
+ else y1 = y1 % height;
+
+ x2 = (x1 + 1) % width;
+ y2 = (y1 + 1) % height;
+
+ p[0] = peek (x1, y1);
+ p[1] = peek (x2, y1);
+ p[2] = peek (x1, y2);
+ p[3] = peek (x2, y2);
+
+ return gimp_bilinear_rgba (u * width, v * height, p);
+ }
+
+ if (checkbounds (x1, y1) == FALSE)
+ {
+ *inside =FALSE;
+
+ return background;
+ }
+
+ x2 = (x1 + 1);
+ y2 = (y1 + 1);
+
+ if (checkbounds (x2, y2) == FALSE)
+ {
+ *inside = TRUE;
+
+ return peek (x1, y1);
+ }
+
+ *inside=TRUE;
+
+ p[0] = peek (x1, y1);
+ p[1] = peek (x2, y1);
+ p[2] = peek (x1, y2);
+ p[3] = peek (x2, y2);
+
+ return gimp_bilinear_rgba (u * width, v * height, p);
+}
+
+GimpRGB
+get_box_image_color (gint image,
+ gdouble u,
+ gdouble v)
+{
+ gint w, h;
+ gint x1, y1, x2, y2;
+ GimpRGB p[4];
+
+ w = gegl_buffer_get_width (box_buffers[image]);
+ h = gegl_buffer_get_height (box_buffers[image]);
+
+ x1 = (gint) ((u * (gdouble) w));
+ y1 = (gint) ((v * (gdouble) h));
+
+ if (checkbounds_box_image (image, x1, y1) == FALSE)
+ return background;
+
+ x2 = (x1 + 1);
+ y2 = (y1 + 1);
+
+ if (checkbounds_box_image (image, x2, y2) == FALSE)
+ return peek_box_image (image, x1,y1);
+
+ p[0] = peek_box_image (image, x1, y1);
+ p[1] = peek_box_image (image, x2, y1);
+ p[2] = peek_box_image (image, x1, y2);
+ p[3] = peek_box_image (image, x2, y2);
+
+ return gimp_bilinear_rgba (u * w, v * h, p);
+}
+
+GimpRGB
+get_cylinder_image_color (gint image,
+ gdouble u,
+ gdouble v)
+{
+ gint w, h;
+ gint x1, y1, x2, y2;
+ GimpRGB p[4];
+
+ w = gegl_buffer_get_width (cylinder_buffers[image]);
+ h = gegl_buffer_get_height (cylinder_buffers[image]);
+
+ x1 = (gint) ((u * (gdouble) w));
+ y1 = (gint) ((v * (gdouble) h));
+
+ if (checkbounds_cylinder_image (image, x1, y1) == FALSE)
+ return background;
+
+ x2 = (x1 + 1);
+ y2 = (y1 + 1);
+
+ if (checkbounds_cylinder_image (image, x2, y2) == FALSE)
+ return peek_cylinder_image (image, x1,y1);
+
+ p[0] = peek_cylinder_image (image, x1, y1);
+ p[1] = peek_cylinder_image (image, x2, y1);
+ p[2] = peek_cylinder_image (image, x1, y2);
+ p[3] = peek_cylinder_image (image, x2, y2);
+
+ return gimp_bilinear_rgba (u * w, v * h, p);
+}
+
+/****************************************/
+/* Allocate memory for temporary images */
+/****************************************/
+
+gint
+image_setup (gint32 drawable_id,
+ gint interactive)
+{
+ input_drawable_id = drawable_id;
+ output_drawable_id = drawable_id;
+
+ if (! gimp_drawable_mask_intersect (drawable_id, &border_x, &border_y,
+ &border_w, &border_h))
+ return FALSE;
+
+ width = gimp_drawable_width (input_drawable_id);
+ height = gimp_drawable_height (input_drawable_id);
+
+ source_buffer = gimp_drawable_get_buffer (input_drawable_id);
+
+ maxcounter = (glong) width * (glong) height;
+
+ if (mapvals.transparent_background == TRUE)
+ {
+ gimp_rgba_set (&background, 0.0, 0.0, 0.0, 0.0);
+ }
+ else
+ {
+ gimp_context_get_background (&background);
+ gimp_rgb_set_alpha (&background, 1.0);
+ }
+
+ if (interactive == TRUE)
+ {
+ preview_rgb_stride = cairo_format_stride_for_width (CAIRO_FORMAT_RGB24,
+ PREVIEW_WIDTH);
+ preview_rgb_data = g_new0 (guchar, preview_rgb_stride * PREVIEW_HEIGHT);
+ preview_surface = cairo_image_surface_create_for_data (preview_rgb_data,
+ CAIRO_FORMAT_RGB24,
+ PREVIEW_WIDTH,
+ PREVIEW_HEIGHT,
+ preview_rgb_stride);
+ }
+
+ return TRUE;
+}
diff --git a/plug-ins/map-object/map-object-image.h b/plug-ins/map-object/map-object-image.h
new file mode 100644
index 0000000..189204b
--- /dev/null
+++ b/plug-ins/map-object/map-object-image.h
@@ -0,0 +1,62 @@
+#ifndef __MAPOBJECT_IMAGE_H__
+#define __MAPOBJECT_IMAGE_H__
+
+/* Externally visible variables */
+/* ============================ */
+
+extern gint32 input_drawable_id;
+extern gint32 output_drawable_id;
+extern GeglBuffer *source_buffer;
+extern GeglBuffer *dest_buffer;
+
+extern gint32 box_drawable_ids[6];
+extern GeglBuffer *box_buffers[6];
+
+extern gint32 cylinder_drawable_ids[2];
+extern GeglBuffer *cylinder_buffers[2];
+
+extern guchar *preview_rgb_data;
+extern gint preview_rgb_stride;
+extern cairo_surface_t *preview_surface;
+
+extern glong maxcounter, old_depth, max_depth;
+extern gint width, height, image_id;
+extern GimpRGB background;
+
+extern gint border_x1, border_y1, border_x2, border_y2;
+
+/* Externally visible functions */
+/* ============================ */
+
+extern gint image_setup (gint32 drawable_id,
+ gint interactive);
+extern glong in_xy_to_index (gint x,
+ gint y);
+extern glong out_xy_to_index (gint x,
+ gint y);
+extern gint checkbounds (gint x,
+ gint y);
+extern GimpRGB peek (gint x,
+ gint y);
+extern void poke (gint x,
+ gint y,
+ GimpRGB *color,
+ gpointer user_data);
+extern GimpVector3 int_to_pos (gint x,
+ gint y);
+extern void pos_to_int (gdouble x,
+ gdouble y,
+ gint *scr_x,
+ gint *scr_y);
+
+extern GimpRGB get_image_color (gdouble u,
+ gdouble v,
+ gint *inside);
+extern GimpRGB get_box_image_color (gint image,
+ gdouble u,
+ gdouble v);
+extern GimpRGB get_cylinder_image_color (gint image,
+ gdouble u,
+ gdouble v);
+
+#endif /* __MAPOBJECT_IMAGE_H__ */
diff --git a/plug-ins/map-object/map-object-main.c b/plug-ins/map-object/map-object-main.c
new file mode 100644
index 0000000..c2f6a82
--- /dev/null
+++ b/plug-ins/map-object/map-object-main.c
@@ -0,0 +1,334 @@
+/* MapObject 1.2.0 -- image filter plug-in for GIMP
+ *
+ * Copyright (C) 1996-98 Tom Bech
+ * Copyright (C) 1996-98 Federico Mena Quintero
+ *
+ * E-mail: tomb@gimp.org (Tom) or quartic@gimp.org (Federico)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gtk/gtk.h>
+
+#include <libgimp/gimp.h>
+#include <libgimp/gimpui.h>
+
+#include "map-object-ui.h"
+#include "map-object-image.h"
+#include "map-object-apply.h"
+#include "map-object-preview.h"
+#include "map-object-main.h"
+
+#include "libgimp/stdplugins-intl.h"
+
+
+/* Global variables */
+/* ================ */
+
+MapObjectValues mapvals;
+
+/******************/
+/* Implementation */
+/******************/
+
+/*************************************/
+/* Set parameters to standard values */
+/*************************************/
+
+static void
+set_default_settings (void)
+{
+ gint i;
+
+ gimp_vector3_set (&mapvals.viewpoint, 0.5, 0.5, 2.0);
+ gimp_vector3_set (&mapvals.firstaxis, 1.0, 0.0, 0.0);
+ gimp_vector3_set (&mapvals.secondaxis, 0.0, 1.0, 0.0);
+ gimp_vector3_set (&mapvals.normal, 0.0, 0.0, 1.0);
+ gimp_vector3_set (&mapvals.position, 0.5, 0.5, 0.0);
+ gimp_vector3_set (&mapvals.lightsource.position, -0.5, -0.5, 2.0);
+ gimp_vector3_set (&mapvals.lightsource.direction, -1.0, -1.0, 1.0);
+ gimp_vector3_set (&mapvals.scale, 0.5, 0.5, 0.5);
+
+ mapvals.maptype = MAP_PLANE;
+
+ mapvals.pixelthreshold = 0.25;
+ mapvals.alpha = 0.0;
+ mapvals.beta = 0.0;
+ mapvals.gamma = 0.0;
+ mapvals.maxdepth = 3.0;
+ mapvals.radius = 0.25;
+ mapvals.cylinder_radius = 0.25;
+ mapvals.cylinder_length = 1.0;
+
+ mapvals.zoom = 1.0;
+ mapvals.lightsource.type = POINT_LIGHT;
+
+ mapvals.antialiasing = TRUE;
+ mapvals.create_new_image = FALSE;
+ mapvals.create_new_layer = FALSE;
+ mapvals.transparent_background = FALSE;
+ mapvals.tiled = FALSE;
+ mapvals.livepreview = FALSE;
+ mapvals.showgrid = TRUE;
+
+ mapvals.lightsource.intensity = 1.0;
+ gimp_rgba_set (&mapvals.lightsource.color, 1.0, 1.0, 1.0, 1.0);
+
+ mapvals.material.ambient_int = 0.3;
+ mapvals.material.diffuse_int = 1.0;
+ mapvals.material.diffuse_ref = 0.5;
+ mapvals.material.specular_ref = 0.5;
+ mapvals.material.highlight = 27.0;
+
+ for (i = 0; i < 6; i++)
+ mapvals.boxmap_id[i] = -1;
+
+ for (i = 0; i < 2; i++)
+ mapvals.cylindermap_id[i] = -1;
+}
+
+static void
+check_drawables (gint32 drawable_id)
+{
+ gint i;
+
+ /* Check that boxmap images are valid */
+ /* ================================== */
+
+ for (i = 0; i < 6; i++)
+ {
+ if (mapvals.boxmap_id[i] == -1 ||
+ !gimp_item_is_valid (mapvals.boxmap_id[i]) ||
+ gimp_drawable_is_gray (mapvals.boxmap_id[i]))
+ mapvals.boxmap_id[i] = drawable_id;
+ }
+
+ /* Check that cylindermap images are valid */
+ /* ======================================= */
+
+ for (i = 0; i < 2; i++)
+ {
+ if (mapvals.cylindermap_id[i] == -1 ||
+ !gimp_item_is_valid (mapvals.cylindermap_id[i]) ||
+ gimp_drawable_is_gray (mapvals.cylindermap_id[i]))
+ mapvals.cylindermap_id[i] = drawable_id;
+ }
+}
+
+static void
+query (void)
+{
+ static const GimpParamDef args[] =
+ {
+ { GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
+ { GIMP_PDB_IMAGE, "image", "Input image" },
+ { GIMP_PDB_DRAWABLE, "drawable", "Input drawable" },
+ { GIMP_PDB_INT32, "maptype", "Type of mapping (0=plane,1=sphere,2=box,3=cylinder)" },
+ { GIMP_PDB_FLOAT, "viewpoint-x", "Position of viewpoint (x,y,z)" },
+ { GIMP_PDB_FLOAT, "viewpoint-y", "Position of viewpoint (x,y,z)" },
+ { GIMP_PDB_FLOAT, "viewpoint-z", "Position of viewpoint (x,y,z)" },
+ { GIMP_PDB_FLOAT, "position-x", "Object position (x,y,z)" },
+ { GIMP_PDB_FLOAT, "position-y", "Object position (x,y,z)" },
+ { GIMP_PDB_FLOAT, "position-z", "Object position (x,y,z)" },
+ { GIMP_PDB_FLOAT, "firstaxis-x", "First axis of object [x,y,z]" },
+ { GIMP_PDB_FLOAT, "firstaxis-y", "First axis of object [x,y,z]" },
+ { GIMP_PDB_FLOAT, "firstaxis-z", "First axis of object [x,y,z]" },
+ { GIMP_PDB_FLOAT, "secondaxis-x", "Second axis of object [x,y,z]" },
+ { GIMP_PDB_FLOAT, "secondaxis-y", "Second axis of object [x,y,z]" },
+ { GIMP_PDB_FLOAT, "secondaxis-z", "Second axis of object [x,y,z]" },
+ { GIMP_PDB_FLOAT, "rotationangle-x", "Rotation about X axis in degrees" },
+ { GIMP_PDB_FLOAT, "rotationangle-y", "Rotation about Y axis in degrees" },
+ { GIMP_PDB_FLOAT, "rotationangle-z", "Rotation about Z axis in degrees" },
+ { GIMP_PDB_INT32, "lighttype", "Type of lightsource (0=point,1=directional,2=none)" },
+ { GIMP_PDB_COLOR, "lightcolor", "Lightsource color (r,g,b)" },
+ { GIMP_PDB_FLOAT, "lightposition-x", "Lightsource position (x,y,z)" },
+ { GIMP_PDB_FLOAT, "lightposition-y", "Lightsource position (x,y,z)" },
+ { GIMP_PDB_FLOAT, "lightposition-z", "Lightsource position (x,y,z)" },
+ { GIMP_PDB_FLOAT, "lightdirection-x", "Lightsource direction [x,y,z]" },
+ { GIMP_PDB_FLOAT, "lightdirection-y", "Lightsource direction [x,y,z]" },
+ { GIMP_PDB_FLOAT, "lightdirection-z", "Lightsource direction [x,y,z]" },
+ { GIMP_PDB_FLOAT, "ambient_intensity", "Material ambient intensity (0..1)" },
+ { GIMP_PDB_FLOAT, "diffuse_intensity", "Material diffuse intensity (0..1)" },
+ { GIMP_PDB_FLOAT, "diffuse_reflectivity", "Material diffuse reflectivity (0..1)" },
+ { GIMP_PDB_FLOAT, "specular_reflectivity", "Material specular reflectivity (0..1)" },
+ { GIMP_PDB_FLOAT, "highlight", "Material highlight (0..->), note: it's exponential" },
+ { GIMP_PDB_INT32, "antialiasing", "Apply antialiasing (TRUE/FALSE)" },
+ { GIMP_PDB_INT32, "tiled", "Tile source image (TRUE/FALSE)" },
+ { GIMP_PDB_INT32, "newimage", "Create a new image (TRUE/FALSE)" },
+ { GIMP_PDB_INT32, "transparentbackground", "Make background transparent (TRUE/FALSE)" },
+ { GIMP_PDB_FLOAT, "radius", "Sphere/cylinder radius (only used when maptype=1 or 3)" },
+ { GIMP_PDB_FLOAT, "x-scale", "Box x size (0..->)" },
+ { GIMP_PDB_FLOAT, "y-scale", "Box y size (0..->)" },
+ { GIMP_PDB_FLOAT, "z-scale", "Box z size (0..->)"},
+ { GIMP_PDB_FLOAT, "cylinder-length", "Cylinder length (0..->)"},
+ { GIMP_PDB_DRAWABLE, "box-front-drawable", "Box front face (set these to -1 if not used)" },
+ { GIMP_PDB_DRAWABLE, "box-back-drawable", "Box back face" },
+ { GIMP_PDB_DRAWABLE, "box-top-drawable", "Box top face" },
+ { GIMP_PDB_DRAWABLE, "box-bottom-drawable", "Box bottom face" },
+ { GIMP_PDB_DRAWABLE, "box-left-drawable", "Box left face" },
+ { GIMP_PDB_DRAWABLE, "box-right-drawable", "Box right face" },
+ { GIMP_PDB_DRAWABLE, "cyl-top-drawable", "Cylinder top face (set these to -1 if not used)" },
+ { GIMP_PDB_DRAWABLE, "cyl-bottom-drawable", "Cylinder bottom face" }
+ };
+
+ gimp_install_procedure (PLUG_IN_PROC,
+ N_("Map the image to an object (plane, sphere, box or cylinder)"),
+ "No help yet",
+ "Tom Bech & Federico Mena Quintero",
+ "Tom Bech & Federico Mena Quintero",
+ "Version 1.2.0, July 16 1998",
+ N_("Map _Object..."),
+ "RGB*",
+ GIMP_PLUGIN,
+ G_N_ELEMENTS (args), 0,
+ args, NULL);
+
+ gimp_plugin_menu_register (PLUG_IN_PROC, "<Image>/Filters/Map");
+}
+
+static void
+run (const gchar *name,
+ gint nparams,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals)
+{
+ static GimpParam values[1];
+ GimpRunMode run_mode;
+ gint32 drawable_id;
+ GimpPDBStatusType status = GIMP_PDB_SUCCESS;
+ gint i;
+
+ INIT_I18N ();
+ gegl_init (NULL, NULL);
+
+ values[0].type = GIMP_PDB_STATUS;
+ values[0].data.d_status = status;
+
+ *nreturn_vals = 1;
+ *return_vals = values;
+
+ /* Set default values */
+ /* ================== */
+
+ set_default_settings ();
+
+ /* Get the specified drawable */
+ /* ========================== */
+
+ run_mode = param[0].data.d_int32;
+ image_id = param[1].data.d_int32;
+ drawable_id = param[2].data.d_int32;
+
+ switch (run_mode)
+ {
+ case GIMP_RUN_INTERACTIVE:
+
+ /* Possibly retrieve data */
+ /* ====================== */
+
+ gimp_get_data (PLUG_IN_PROC, &mapvals);
+ check_drawables (drawable_id);
+ if (main_dialog (drawable_id))
+ {
+ compute_image ();
+
+ gimp_set_data (PLUG_IN_PROC, &mapvals, sizeof (MapObjectValues));
+ }
+ break;
+
+ case GIMP_RUN_WITH_LAST_VALS:
+ gimp_get_data (PLUG_IN_PROC, &mapvals);
+ check_drawables (drawable_id);
+ if (image_setup (drawable_id, FALSE))
+ compute_image ();
+ break;
+
+ case GIMP_RUN_NONINTERACTIVE:
+ if (nparams != 49)
+ {
+ status = GIMP_PDB_CALLING_ERROR;
+ }
+ else
+ {
+ mapvals.maptype = (MapType) param[3].data.d_int32;
+ mapvals.viewpoint.x = param[4].data.d_float;
+ mapvals.viewpoint.y = param[5].data.d_float;
+ mapvals.viewpoint.z = param[6].data.d_float;
+ mapvals.position.x = param[7].data.d_float;
+ mapvals.position.y = param[8].data.d_float;
+ mapvals.position.z = param[9].data.d_float;
+ mapvals.firstaxis.x = param[10].data.d_float;
+ mapvals.firstaxis.y = param[11].data.d_float;
+ mapvals.firstaxis.z = param[12].data.d_float;
+ mapvals.secondaxis.x = param[13].data.d_float;
+ mapvals.secondaxis.y = param[14].data.d_float;
+ mapvals.secondaxis.z = param[15].data.d_float;
+ mapvals.alpha = param[16].data.d_float;
+ mapvals.beta = param[17].data.d_float;
+ mapvals.gamma = param[18].data.d_float;
+ mapvals.lightsource.type = (LightType) param[19].data.d_int32;
+ mapvals.lightsource.color = param[20].data.d_color;
+ mapvals.lightsource.position.x = param[21].data.d_float;
+ mapvals.lightsource.position.y = param[22].data.d_float;
+ mapvals.lightsource.position.z = param[23].data.d_float;
+ mapvals.lightsource.direction.x = param[24].data.d_float;
+ mapvals.lightsource.direction.y = param[25].data.d_float;
+ mapvals.lightsource.direction.z = param[26].data.d_float;
+ mapvals.material.ambient_int = param[27].data.d_float;
+ mapvals.material.diffuse_int = param[28].data.d_float;
+ mapvals.material.diffuse_ref = param[29].data.d_float;
+ mapvals.material.specular_ref = param[30].data.d_float;
+ mapvals.material.highlight = param[31].data.d_float;
+ mapvals.antialiasing = (gint) param[32].data.d_int32;
+ mapvals.tiled = (gint) param[33].data.d_int32;
+ mapvals.create_new_image = (gint) param[34].data.d_int32;
+ mapvals.transparent_background = (gint) param[35].data.d_int32;
+ mapvals.radius = param[36].data.d_float;
+ mapvals.cylinder_radius = param[36].data.d_float;
+ mapvals.scale.x = param[37].data.d_float;
+ mapvals.scale.y = param[38].data.d_float;
+ mapvals.scale.z = param[39].data.d_float;
+ mapvals.cylinder_length = param[40].data.d_float;
+
+ for (i = 0; i < 6; i++)
+ mapvals.boxmap_id[i] = param[41+i].data.d_drawable;
+
+ for (i = 0; i < 2; i++)
+ mapvals.cylindermap_id[i] = param[47+i].data.d_drawable;
+
+ check_drawables (drawable_id);
+ if (image_setup (drawable_id, FALSE))
+ compute_image ();
+ }
+ break;
+ }
+
+ values[0].data.d_status = status;
+
+ if (run_mode != GIMP_RUN_NONINTERACTIVE)
+ gimp_displays_flush ();
+}
+
+const GimpPlugInInfo PLUG_IN_INFO =
+{
+ NULL, /* init_proc */
+ NULL, /* quit_proc */
+ query, /* query_proc */
+ run, /* run_proc */
+};
+
+MAIN ()
diff --git a/plug-ins/map-object/map-object-main.h b/plug-ins/map-object/map-object-main.h
new file mode 100644
index 0000000..5958c7c
--- /dev/null
+++ b/plug-ins/map-object/map-object-main.h
@@ -0,0 +1,90 @@
+#ifndef __MAPOBJECT_MAIN_H__
+#define __MAPOBJECT_MAIN_H__
+
+/* Defines and stuff */
+/* ================= */
+
+#define PLUG_IN_PROC "plug-in-map-object"
+#define PLUG_IN_BINARY "map-object"
+#define PLUG_IN_ROLE "gimp-map-object"
+
+#define TILE_CACHE_SIZE 16
+
+/* Typedefs */
+/* ======== */
+
+typedef enum
+{
+ POINT_LIGHT,
+ DIRECTIONAL_LIGHT,
+ NO_LIGHT
+} LightType;
+
+typedef enum
+{
+ MAP_PLANE,
+ MAP_SPHERE,
+ MAP_BOX,
+ MAP_CYLINDER
+} MapType;
+
+/* Typedefs */
+/* ======== */
+
+typedef struct
+{
+ gdouble ambient_int;
+ gdouble diffuse_int;
+ gdouble diffuse_ref;
+ gdouble specular_ref;
+ gdouble highlight;
+ GimpRGB color;
+} MaterialSettings;
+
+typedef struct
+{
+ LightType type;
+ GimpVector3 position;
+ GimpVector3 direction;
+ GimpRGB color;
+ gdouble intensity;
+} LightSettings;
+
+typedef struct
+{
+ GimpVector3 viewpoint,firstaxis,secondaxis,normal,position,scale;
+ LightSettings lightsource;
+
+ MaterialSettings material;
+ MaterialSettings refmaterial;
+
+ MapType maptype;
+
+ gint antialiasing;
+ gint create_new_image;
+ gint create_new_layer;
+ gint transparent_background;
+ gint tiled;
+ gint livepreview;
+ gint showgrid;
+ gint showcaps;
+
+ gdouble zoom;
+ gdouble alpha,beta,gamma;
+ gdouble maxdepth;
+ gdouble pixelthreshold;
+ gdouble radius;
+ gdouble cylinder_radius;
+ gdouble cylinder_length;
+
+ gint32 boxmap_id[6];
+ gint32 cylindermap_id[2];
+
+} MapObjectValues;
+
+/* Externally visible variables */
+/* ============================ */
+
+extern MapObjectValues mapvals;
+
+#endif /* __MAPOBJECT_MAIN_H__ */
diff --git a/plug-ins/map-object/map-object-preview.c b/plug-ins/map-object/map-object-preview.c
new file mode 100644
index 0000000..afc29b4
--- /dev/null
+++ b/plug-ins/map-object/map-object-preview.c
@@ -0,0 +1,745 @@
+/*************************************************/
+/* Compute a preview image and preview wireframe */
+/*************************************************/
+
+#include "config.h"
+
+#include <gtk/gtk.h>
+
+#include <libgimp/gimp.h>
+#include <libgimp/gimpui.h>
+
+#include "map-object-main.h"
+#include "map-object-ui.h"
+#include "map-object-image.h"
+#include "map-object-apply.h"
+#include "map-object-shade.h"
+#include "map-object-preview.h"
+
+
+gdouble mat[3][4];
+gint lightx, lighty;
+
+/* Protos */
+/* ====== */
+
+static void compute_preview (gint x,
+ gint y,
+ gint w,
+ gint h,
+ gint pw,
+ gint ph);
+static void draw_light_marker (cairo_t *cr,
+ gint xpos,
+ gint ypos);
+static void draw_line (cairo_t *cr,
+ gint startx,
+ gint starty,
+ gint pw,
+ gint ph,
+ gdouble cx1,
+ gdouble cy1,
+ gdouble cx2,
+ gdouble cy2,
+ GimpVector3 a,
+ GimpVector3 b);
+static void draw_wireframe (cairo_t *cr,
+ gint startx,
+ gint starty,
+ gint pw,
+ gint ph);
+static void draw_preview_wireframe (cairo_t *cr);
+static void draw_wireframe_plane (cairo_t *cr,
+ gint startx,
+ gint starty,
+ gint pw,
+ gint ph);
+static void draw_wireframe_sphere (cairo_t *cr,
+ gint startx,
+ gint starty,
+ gint pw,
+ gint ph);
+static void draw_wireframe_box (cairo_t *cr,
+ gint startx,
+ gint starty,
+ gint pw,
+ gint ph);
+static void draw_wireframe_cylinder (cairo_t *cr,
+ gint startx,
+ gint starty,
+ gint pw,
+ gint ph);
+
+/**************************************************************/
+/* Computes a preview of the rectangle starting at (x,y) with */
+/* dimensions (w,h), placing the result in preview_RGB_data. */
+/**************************************************************/
+
+static void
+compute_preview (gint x,
+ gint y,
+ gint w,
+ gint h,
+ gint pw,
+ gint ph)
+{
+ gdouble xpostab[PREVIEW_WIDTH];
+ gdouble ypostab[PREVIEW_HEIGHT];
+ gdouble realw;
+ gdouble realh;
+ GimpVector3 p1, p2;
+ GimpRGB color;
+ GimpRGB lightcheck, darkcheck;
+ gint xcnt, ycnt, f1, f2;
+ guchar r, g, b;
+ glong index = 0;
+
+ init_compute ();
+
+ if (! preview_surface)
+ return;
+
+ p1 = int_to_pos (x, y);
+ p2 = int_to_pos (x + w, y + h);
+
+ /* First, compute the linear mapping (x,y,x+w,y+h) to (0,0,pw,ph) */
+ /* ============================================================== */
+
+ realw = (p2.x - p1.x);
+ realh = (p2.y - p1.y);
+
+ for (xcnt = 0; xcnt < pw; xcnt++)
+ xpostab[xcnt] = p1.x + realw * ((gdouble) xcnt / (gdouble) pw);
+
+ for (ycnt = 0; ycnt < ph; ycnt++)
+ ypostab[ycnt] = p1.y + realh * ((gdouble) ycnt / (gdouble) ph);
+
+ /* Compute preview using the offset tables */
+ /* ======================================= */
+
+ if (mapvals.transparent_background == TRUE)
+ {
+ gimp_rgba_set (&background, 0.0, 0.0, 0.0, 0.0);
+ }
+ else
+ {
+ gimp_context_get_background (&background);
+ gimp_rgb_set_alpha (&background, 1.0);
+ }
+
+ gimp_rgba_set (&lightcheck,
+ GIMP_CHECK_LIGHT, GIMP_CHECK_LIGHT, GIMP_CHECK_LIGHT, 1.0);
+ gimp_rgba_set (&darkcheck,
+ GIMP_CHECK_DARK, GIMP_CHECK_DARK, GIMP_CHECK_DARK, 1.0);
+ gimp_vector3_set (&p2, -1.0, -1.0, 0.0);
+
+ cairo_surface_flush (preview_surface);
+
+ for (ycnt = 0; ycnt < ph; ycnt++)
+ {
+ index = ycnt * preview_rgb_stride;
+ for (xcnt = 0; xcnt < pw; xcnt++)
+ {
+ p1.x = xpostab[xcnt];
+ p1.y = ypostab[ycnt];
+
+ p2 = p1;
+ color = (* get_ray_color) (&p1);
+
+ if (color.a < 1.0)
+ {
+ f1 = ((xcnt % 32) < 16);
+ f2 = ((ycnt % 32) < 16);
+ f1 = f1 ^ f2;
+
+ if (f1)
+ {
+ if (color.a == 0.0)
+ color = lightcheck;
+ else
+ gimp_rgb_composite (&color, &lightcheck,
+ GIMP_RGB_COMPOSITE_BEHIND);
+ }
+ else
+ {
+ if (color.a == 0.0)
+ color = darkcheck;
+ else
+ gimp_rgb_composite (&color, &darkcheck,
+ GIMP_RGB_COMPOSITE_BEHIND);
+ }
+ }
+
+ gimp_rgb_get_uchar (&color, &r, &g, &b);
+ GIMP_CAIRO_RGB24_SET_PIXEL((preview_rgb_data + index), r, g, b);
+ index += 4;
+ }
+ }
+ cairo_surface_mark_dirty (preview_surface);
+}
+
+/*************************************************/
+/* Check if the given position is within the */
+/* light marker. Return TRUE if so, FALSE if not */
+/*************************************************/
+
+gint
+check_light_hit (gint xpos,
+ gint ypos)
+{
+ gdouble dx, dy, r;
+
+ if (mapvals.lightsource.type == POINT_LIGHT)
+ {
+ dx = (gdouble) lightx - xpos;
+ dy = (gdouble) lighty - ypos;
+ r = sqrt (dx * dx + dy * dy) + 0.5;
+
+ if ((gint) r > 7)
+ return FALSE;
+ else
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+/****************************************/
+/* Draw a marker to show light position */
+/****************************************/
+
+static void
+draw_light_marker (cairo_t *cr,
+ gint xpos,
+ gint ypos)
+{
+ GdkColor color;
+
+ if (mapvals.lightsource.type != POINT_LIGHT)
+ return;
+
+ cairo_set_line_width (cr, 1.0);
+
+ color.red = 0x0;
+ color.green = 0x4000;
+ color.blue = 0xFFFF;
+ gdk_cairo_set_source_color (cr, &color);
+
+ lightx = xpos;
+ lighty = ypos;
+
+ cairo_arc (cr, lightx, lighty, 7, 0, 2 * G_PI);
+ cairo_fill (cr);
+}
+
+static void
+draw_lights (cairo_t *cr,
+ gint startx,
+ gint starty,
+ gint pw,
+ gint ph)
+{
+ gdouble dxpos, dypos;
+ gint xpos, ypos;
+
+ gimp_vector_3d_to_2d (startx, starty, pw, ph,
+ &dxpos, &dypos, &mapvals.viewpoint,
+ &mapvals.lightsource.position);
+ xpos = RINT (dxpos);
+ ypos = RINT (dypos);
+
+ if (xpos >= 0 && xpos <= PREVIEW_WIDTH &&
+ ypos >= 0 && ypos <= PREVIEW_HEIGHT)
+ {
+ draw_light_marker (cr, xpos, ypos);
+ }
+}
+
+/*************************************************/
+/* Update light position given new screen coords */
+/*************************************************/
+
+void
+update_light (gint xpos,
+ gint ypos)
+{
+ gint startx, starty, pw, ph;
+
+ pw = PREVIEW_WIDTH * mapvals.zoom;
+ ph = PREVIEW_HEIGHT * mapvals.zoom;
+ startx = (PREVIEW_WIDTH - pw) / 2;
+ starty = (PREVIEW_HEIGHT - ph) / 2;
+
+ gimp_vector_2d_to_3d (startx, starty, pw, ph, xpos, ypos,
+ &mapvals.viewpoint, &mapvals.lightsource.position);
+
+ gtk_widget_queue_draw (previewarea);
+}
+
+/**************************/
+/* Compute preview image. */
+/**************************/
+
+void
+compute_preview_image (void)
+{
+ GdkDisplay *display = gtk_widget_get_display (previewarea);
+ GdkCursor *cursor;
+ gint pw, ph;
+
+ pw = PREVIEW_WIDTH * mapvals.zoom;
+ ph = PREVIEW_HEIGHT * mapvals.zoom;
+
+ cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
+ gdk_window_set_cursor (gtk_widget_get_window (previewarea), cursor);
+ gdk_cursor_unref (cursor);
+
+ compute_preview (0, 0, width - 1, height - 1, pw, ph);
+
+ cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
+ gdk_window_set_cursor(gtk_widget_get_window (previewarea), cursor);
+ gdk_cursor_unref (cursor);
+}
+
+gboolean
+preview_expose (GtkWidget *widget,
+ GdkEventExpose *eevent)
+{
+ gint startx, starty, pw, ph;
+ cairo_t *cr;
+
+ cr = gdk_cairo_create (eevent->window);
+
+ pw = PREVIEW_WIDTH * mapvals.zoom;
+ ph = PREVIEW_HEIGHT * mapvals.zoom;
+ startx = (PREVIEW_WIDTH - pw) / 2;
+ starty = (PREVIEW_HEIGHT - ph) / 2;
+
+ cairo_set_source_surface (cr, preview_surface, startx, starty);
+ cairo_rectangle (cr, startx, starty, pw, ph);
+ cairo_clip (cr);
+
+ cairo_paint (cr);
+
+ cairo_reset_clip (cr);
+
+ if (mapvals.showgrid)
+ draw_preview_wireframe (cr);
+
+ cairo_reset_clip (cr);
+ draw_lights (cr, startx, starty, pw, ph);
+
+ cairo_destroy (cr);
+
+ return FALSE;
+}
+
+/**************************/
+/* Draw preview wireframe */
+/**************************/
+
+void
+draw_preview_wireframe (cairo_t *cr)
+{
+ gint startx, starty, pw, ph;
+
+ pw = PREVIEW_WIDTH * mapvals.zoom;
+ ph = PREVIEW_HEIGHT * mapvals.zoom;
+ startx = (PREVIEW_WIDTH - pw) / 2;
+ starty = (PREVIEW_HEIGHT - ph) / 2;
+
+ draw_wireframe (cr, startx, starty, pw, ph);
+}
+
+/****************************/
+/* Draw a wireframe preview */
+/****************************/
+
+void
+draw_wireframe (cairo_t *cr,
+ gint startx,
+ gint starty,
+ gint pw,
+ gint ph)
+{
+ cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
+ switch (mapvals.maptype)
+ {
+ case MAP_PLANE:
+ draw_wireframe_plane (cr, startx, starty, pw, ph);
+ break;
+ case MAP_SPHERE:
+ draw_wireframe_sphere (cr, startx, starty, pw, ph);
+ break;
+ case MAP_BOX:
+ draw_wireframe_box (cr, startx, starty, pw, ph);
+ break;
+ case MAP_CYLINDER:
+ draw_wireframe_cylinder (cr, startx, starty, pw, ph);
+ break;
+ }
+}
+
+static void
+draw_wireframe_plane (cairo_t *cr,
+ gint startx,
+ gint starty,
+ gint pw,
+ gint ph)
+{
+ GimpVector3 v1, v2, a, b, c, d, dir1, dir2;
+ gint cnt;
+ gdouble x1, y1, x2, y2, fac;
+
+ cairo_rectangle (cr, startx, starty, pw, ph);
+ cairo_clip (cr);
+
+ /* Find rotated box corners */
+ /* ======================== */
+
+ gimp_vector3_set (&v1, 0.5, 0.0, 0.0);
+ gimp_vector3_set (&v2, 0.0, 0.5, 0.0);
+
+ gimp_vector3_rotate (&v1,
+ gimp_deg_to_rad (mapvals.alpha),
+ gimp_deg_to_rad (mapvals.beta),
+ gimp_deg_to_rad (mapvals.gamma));
+
+ gimp_vector3_rotate (&v2,
+ gimp_deg_to_rad (mapvals.alpha),
+ gimp_deg_to_rad (mapvals.beta),
+ gimp_deg_to_rad (mapvals.gamma));
+
+ dir1 = v1; gimp_vector3_normalize (&dir1);
+ dir2 = v2; gimp_vector3_normalize (&dir2);
+
+ fac = 1.0 / (gdouble) WIRESIZE;
+
+ gimp_vector3_mul (&dir1, fac);
+ gimp_vector3_mul (&dir2, fac);
+
+ gimp_vector3_add (&a, &mapvals.position, &v1);
+ gimp_vector3_sub (&b, &a, &v2);
+ gimp_vector3_add (&a, &a, &v2);
+ gimp_vector3_sub (&d, &mapvals.position, &v1);
+ gimp_vector3_sub (&d, &d, &v2);
+
+ c = b;
+
+ for (cnt = 0; cnt <= WIRESIZE; cnt++)
+ {
+ gimp_vector_3d_to_2d (startx, starty, pw, ph,
+ &x1, &y1, &mapvals.viewpoint, &a);
+ gimp_vector_3d_to_2d (startx, starty, pw, ph,
+ &x2, &y2, &mapvals.viewpoint, &b);
+
+ cairo_move_to (cr, RINT (x1) + 0.5, RINT (y1) + 0.5);
+ cairo_line_to (cr, RINT (x2) + 0.5, RINT (y2) + 0.5);
+
+ gimp_vector_3d_to_2d (startx, starty, pw, ph,
+ &x1, &y1, &mapvals.viewpoint, &c);
+ gimp_vector_3d_to_2d (startx, starty, pw, ph,
+ &x2, &y2, &mapvals.viewpoint, &d);
+
+ cairo_move_to (cr, RINT (x1) + 0.5, RINT (y1) + 0.5);
+ cairo_line_to (cr, RINT (x2) + 0.5, RINT (y2) + 0.5);
+
+ gimp_vector3_sub (&a, &a, &dir1);
+ gimp_vector3_sub (&b, &b, &dir1);
+ gimp_vector3_add (&c, &c, &dir2);
+ gimp_vector3_add (&d, &d, &dir2);
+ }
+
+ cairo_set_line_width (cr, 3.0);
+ cairo_stroke_preserve (cr);
+ cairo_set_line_width (cr, 1.0);
+ cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
+ cairo_stroke (cr);
+}
+
+static void
+draw_wireframe_sphere (cairo_t *cr,
+ gint startx,
+ gint starty,
+ gint pw,
+ gint ph)
+{
+ GimpVector3 p[2 * (WIRESIZE + 5)];
+ gint cnt, cnt2;
+ gdouble x1, y1, x2, y2, twopifac;
+
+ cairo_rectangle (cr, startx, starty, pw, ph);
+ cairo_clip (cr);
+
+ /* Compute wireframe points */
+ /* ======================== */
+
+ twopifac = (2.0 * G_PI) / WIRESIZE;
+
+ for (cnt = 0; cnt < WIRESIZE; cnt++)
+ {
+ p[cnt].x = mapvals.radius * cos ((gdouble) cnt * twopifac);
+ p[cnt].y = 0.0;
+ p[cnt].z = mapvals.radius * sin ((gdouble) cnt * twopifac);
+ gimp_vector3_rotate (&p[cnt],
+ gimp_deg_to_rad (mapvals.alpha),
+ gimp_deg_to_rad (mapvals.beta),
+ gimp_deg_to_rad (mapvals.gamma));
+ gimp_vector3_add (&p[cnt], &p[cnt], &mapvals.position);
+ }
+
+ p[cnt] = p[0];
+
+ for (cnt = WIRESIZE + 1; cnt < 2 * WIRESIZE + 1; cnt++)
+ {
+ p[cnt].x = mapvals.radius * cos ((gdouble) (cnt-(WIRESIZE+1))*twopifac);
+ p[cnt].y = mapvals.radius * sin ((gdouble) (cnt-(WIRESIZE+1))*twopifac);
+ p[cnt].z = 0.0;
+ gimp_vector3_rotate (&p[cnt],
+ gimp_deg_to_rad (mapvals.alpha),
+ gimp_deg_to_rad (mapvals.beta),
+ gimp_deg_to_rad (mapvals.gamma));
+ gimp_vector3_add (&p[cnt], &p[cnt], &mapvals.position);
+ }
+
+ p[cnt] = p[WIRESIZE+1];
+ cnt++;
+ cnt2 = cnt;
+
+ /* Find rotated axis */
+ /* ================= */
+
+ gimp_vector3_set (&p[cnt], 0.0, -0.35, 0.0);
+ gimp_vector3_rotate (&p[cnt],
+ gimp_deg_to_rad (mapvals.alpha),
+ gimp_deg_to_rad (mapvals.beta),
+ gimp_deg_to_rad (mapvals.gamma));
+ p[cnt+1] = mapvals.position;
+
+ gimp_vector3_set (&p[cnt+2], 0.0, 0.0, -0.35);
+ gimp_vector3_rotate (&p[cnt+2],
+ gimp_deg_to_rad (mapvals.alpha),
+ gimp_deg_to_rad (mapvals.beta),
+ gimp_deg_to_rad (mapvals.gamma));
+ p[cnt+3] = mapvals.position;
+
+ p[cnt + 4] = p[cnt];
+ gimp_vector3_mul (&p[cnt + 4], -1.0);
+ p[cnt + 5] = p[cnt + 1];
+
+ gimp_vector3_add (&p[cnt], &p[cnt], &mapvals.position);
+ gimp_vector3_add (&p[cnt + 2], &p[cnt + 2], &mapvals.position);
+ gimp_vector3_add (&p[cnt + 4], &p[cnt + 4], &mapvals.position);
+
+ /* Draw the circles (equator and zero meridian) */
+ /* ============================================ */
+
+ for (cnt = 0; cnt < cnt2 - 1; cnt++)
+ {
+ if (p[cnt].z > mapvals.position.z && p[cnt + 1].z > mapvals.position.z)
+ {
+ gimp_vector_3d_to_2d (startx, starty, pw, ph,
+ &x1, &y1, &mapvals.viewpoint, &p[cnt]);
+ gimp_vector_3d_to_2d (startx, starty, pw, ph,
+ &x2, &y2, &mapvals.viewpoint, &p[cnt + 1]);
+
+ cairo_move_to (cr, (gint) (x1 + 0.5) + 0.5, (gint) (y1 + 0.5) + 0.5);
+ cairo_line_to (cr, (gint) (x2 + 0.5) + 0.5, (gint) (y2 + 0.5) + 0.5);
+ }
+ }
+
+ /* Draw the axis (pole to pole and center to zero meridian) */
+ /* ======================================================== */
+
+ for (cnt = 0; cnt < 3; cnt++)
+ {
+ gimp_vector_3d_to_2d (startx, starty, pw, ph,
+ &x1, &y1, &mapvals.viewpoint, &p[cnt2]);
+ gimp_vector_3d_to_2d (startx, starty, pw, ph,
+ &x2, &y2, &mapvals.viewpoint, &p[cnt2 + 1]);
+
+ cairo_move_to (cr, RINT (x1) + 0.5, RINT (y1) + 0.5);
+ cairo_line_to (cr, RINT (x2) + 0.5, RINT (y2) + 0.5);
+
+ cnt2 += 2;
+ }
+
+ cairo_set_line_width (cr, 3.0);
+ cairo_stroke_preserve (cr);
+ cairo_set_line_width (cr, 1.0);
+ cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
+ cairo_stroke (cr);
+}
+
+static void
+draw_line (cairo_t *cr,
+ gint startx,
+ gint starty,
+ gint pw,
+ gint ph,
+ gdouble cx1,
+ gdouble cy1,
+ gdouble cx2,
+ gdouble cy2,
+ GimpVector3 a,
+ GimpVector3 b)
+{
+ gdouble x1, y1, x2, y2;
+
+ gimp_vector_3d_to_2d (startx, starty, pw, ph,
+ &x1, &y1, &mapvals.viewpoint, &a);
+ gimp_vector_3d_to_2d (startx, starty, pw, ph,
+ &x2, &y2, &mapvals.viewpoint, &b);
+
+ cairo_move_to (cr, RINT (x1) + 0.5, RINT (y1) + 0.5);
+ cairo_line_to (cr, RINT (x2) + 0.5, RINT (y2) + 0.5);
+}
+
+static void
+draw_wireframe_box (cairo_t *cr,
+ gint startx,
+ gint starty,
+ gint pw,
+ gint ph)
+{
+ GimpVector3 p[8], tmp, scale;
+ gint i;
+ gdouble cx1, cy1, cx2, cy2;
+
+ cairo_rectangle (cr, startx, starty, pw, ph);
+ cairo_clip (cr);
+
+ /* Compute wireframe points */
+ /* ======================== */
+
+ init_compute ();
+
+ scale = mapvals.scale;
+ gimp_vector3_mul (&scale, 0.5);
+
+ gimp_vector3_set (&p[0], -scale.x, -scale.y, scale.z);
+ gimp_vector3_set (&p[1], scale.x, -scale.y, scale.z);
+ gimp_vector3_set (&p[2], scale.x, scale.y, scale.z);
+ gimp_vector3_set (&p[3], -scale.x, scale.y, scale.z);
+
+ gimp_vector3_set (&p[4], -scale.x, -scale.y, -scale.z);
+ gimp_vector3_set (&p[5], scale.x, -scale.y, -scale.z);
+ gimp_vector3_set (&p[6], scale.x, scale.y, -scale.z);
+ gimp_vector3_set (&p[7], -scale.x, scale.y, -scale.z);
+
+ /* Rotate and translate points */
+ /* =========================== */
+
+ for (i = 0; i < 8; i++)
+ {
+ vecmulmat (&tmp, &p[i], rotmat);
+ gimp_vector3_add (&p[i], &tmp, &mapvals.position);
+ }
+
+ /* Draw the box */
+ /* ============ */
+
+ cx1 = (gdouble) startx;
+ cy1 = (gdouble) starty;
+ cx2 = cx1 + (gdouble) pw;
+ cy2 = cy1 + (gdouble) ph;
+
+ draw_line (cr, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[0],p[1]);
+ draw_line (cr, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[1],p[2]);
+ draw_line (cr, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[2],p[3]);
+ draw_line (cr, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[3],p[0]);
+
+ draw_line (cr, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[4],p[5]);
+ draw_line (cr, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[5],p[6]);
+ draw_line (cr, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[6],p[7]);
+ draw_line (cr, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[7],p[4]);
+
+ draw_line (cr, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[0],p[4]);
+ draw_line (cr, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[1],p[5]);
+ draw_line (cr, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[2],p[6]);
+ draw_line (cr, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[3],p[7]);
+
+ cairo_set_line_width (cr, 3.0);
+ cairo_stroke_preserve (cr);
+ cairo_set_line_width (cr, 1.0);
+ cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
+ cairo_stroke (cr);
+}
+
+static void
+draw_wireframe_cylinder (cairo_t *cr,
+ gint startx,
+ gint starty,
+ gint pw,
+ gint ph)
+{
+ GimpVector3 p[2*8], a, axis, scale;
+ gint i;
+ gdouble cx1, cy1, cx2, cy2;
+ gfloat m[16], l, angle;
+
+ cairo_rectangle (cr, startx, starty, pw, ph);
+ cairo_clip (cr);
+
+ /* Compute wireframe points */
+ /* ======================== */
+
+ init_compute ();
+
+ scale = mapvals.scale;
+ gimp_vector3_mul (&scale, 0.5);
+
+ l = mapvals.cylinder_length / 2.0;
+ angle = 0;
+
+ gimp_vector3_set (&axis, 0.0, 1.0, 0.0);
+
+ for (i = 0; i < 8; i++)
+ {
+ rotatemat (angle, &axis, m);
+
+ gimp_vector3_set (&a, mapvals.cylinder_radius, 0.0, 0.0);
+
+ vecmulmat (&p[i], &a, m);
+
+ p[i+8] = p[i];
+
+ p[i].y += l;
+ p[i+8].y -= l;
+
+ angle += 360.0 / 8.0;
+ }
+
+ /* Rotate and translate points */
+ /* =========================== */
+
+ for (i = 0; i < 16; i++)
+ {
+ vecmulmat (&a, &p[i], rotmat);
+ gimp_vector3_add (&p[i], &a, &mapvals.position);
+ }
+
+ /* Draw the box */
+ /* ============ */
+
+ cx1 = (gdouble) startx;
+ cy1 = (gdouble) starty;
+ cx2 = cx1 + (gdouble) pw;
+ cy2 = cy1 + (gdouble) ph;
+
+ for (i = 0; i < 7; i++)
+ {
+ draw_line (cr, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[i],p[i+1]);
+ draw_line (cr, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[i+8],p[i+9]);
+ draw_line (cr, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[i],p[i+8]);
+ }
+
+ draw_line (cr, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[7],p[0]);
+ draw_line (cr, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[15],p[8]);
+
+ cairo_set_line_width (cr, 3.0);
+ cairo_stroke_preserve (cr);
+ cairo_set_line_width (cr, 1.0);
+ cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
+ cairo_stroke (cr);
+}
diff --git a/plug-ins/map-object/map-object-preview.h b/plug-ins/map-object/map-object-preview.h
new file mode 100644
index 0000000..400b767
--- /dev/null
+++ b/plug-ins/map-object/map-object-preview.h
@@ -0,0 +1,26 @@
+#ifndef __MAPOBJECT_PREVIEW_H__
+#define __MAPOBJECT_PREVIEW_H__
+
+#define PREVIEW_WIDTH 200
+#define PREVIEW_HEIGHT 200
+
+#define WIRESIZE 16
+
+/* Externally visible variables */
+/* ============================ */
+
+extern gdouble mat[3][4];
+extern gint lightx,lighty;
+
+/* Externally visible functions */
+/* ============================ */
+
+void compute_preview_image (void);
+gboolean preview_expose (GtkWidget *widget,
+ GdkEventExpose *eevent);
+gint check_light_hit (gint xpos,
+ gint ypos);
+void update_light (gint xpos,
+ gint ypos);
+
+#endif /* __MAPOBJECT_PREVIEW_H__ */
diff --git a/plug-ins/map-object/map-object-shade.c b/plug-ins/map-object/map-object-shade.c
new file mode 100644
index 0000000..f91345b
--- /dev/null
+++ b/plug-ins/map-object/map-object-shade.c
@@ -0,0 +1,1254 @@
+/*****************/
+/* Shading stuff */
+/*****************/
+
+#include "config.h"
+
+#include <string.h>
+
+#include <libgimp/gimp.h>
+#include <libgimp/gimpui.h>
+
+#include "map-object-apply.h"
+#include "map-object-main.h"
+#include "map-object-image.h"
+#include "map-object-shade.h"
+
+
+static gdouble bx1, by1, bx2, by2;
+get_ray_color_func get_ray_color;
+
+typedef struct
+{
+ gdouble u, v;
+ gdouble t;
+ GimpVector3 s;
+ GimpVector3 n;
+ gint face;
+} FaceIntersectInfo;
+
+/*****************/
+/* Phong shading */
+/*****************/
+
+static GimpRGB
+phong_shade (GimpVector3 *pos,
+ GimpVector3 *viewpoint,
+ GimpVector3 *normal,
+ GimpRGB *diff_col,
+ GimpRGB *spec_col,
+ LightType type)
+{
+ GimpRGB ambientcolor, diffusecolor, specularcolor;
+ gdouble NL, RV, dist;
+ GimpVector3 L, NN, V, N;
+ GimpVector3 *light;
+
+ light = mapvals.lightsource.type == DIRECTIONAL_LIGHT
+ ? &mapvals.lightsource.direction
+ : &mapvals.lightsource.position,
+
+ /* Compute ambient intensity */
+ /* ========================= */
+
+ N = *normal;
+ ambientcolor = *diff_col;
+ gimp_rgb_multiply (&ambientcolor, mapvals.material.ambient_int);
+
+ /* Compute (N*L) term of Phong's equation */
+ /* ====================================== */
+
+ if (type == POINT_LIGHT)
+ gimp_vector3_sub (&L, light, pos);
+ else
+ L = *light;
+
+ dist = gimp_vector3_length (&L);
+
+ if (dist != 0.0)
+ gimp_vector3_mul (&L, 1.0 / dist);
+
+ NL = 2.0 * gimp_vector3_inner_product (&N, &L);
+
+ if (NL >= 0.0)
+ {
+ /* Compute (R*V)^alpha term of Phong's equation */
+ /* ============================================ */
+
+ gimp_vector3_sub (&V, viewpoint, pos);
+ gimp_vector3_normalize (&V);
+
+ gimp_vector3_mul (&N, NL);
+ gimp_vector3_sub (&NN, &N, &L);
+ RV = gimp_vector3_inner_product (&NN, &V);
+ RV = 0.0 < RV ? pow (RV, mapvals.material.highlight) : 0.0;
+
+ /* Compute diffuse and specular intensity contribution */
+ /* =================================================== */
+
+ diffusecolor = *diff_col;
+ gimp_rgb_multiply (&diffusecolor, mapvals.material.diffuse_ref);
+ gimp_rgb_multiply (&diffusecolor, NL);
+
+ specularcolor = *spec_col;
+ gimp_rgb_multiply (&specularcolor, mapvals.material.specular_ref);
+ gimp_rgb_multiply (&specularcolor, RV);
+
+ gimp_rgb_add (&diffusecolor, &specularcolor);
+ gimp_rgb_multiply (&diffusecolor, mapvals.material.diffuse_int);
+ gimp_rgb_clamp (&diffusecolor);
+
+ gimp_rgb_add (&ambientcolor, &diffusecolor);
+ }
+
+ return ambientcolor;
+}
+
+static gint
+plane_intersect (GimpVector3 *dir,
+ GimpVector3 *viewp,
+ GimpVector3 *ipos,
+ gdouble *u,
+ gdouble *v)
+{
+ static gdouble det, det1, det2, det3, t;
+
+ imat[0][0] = dir->x;
+ imat[1][0] = dir->y;
+ imat[2][0] = dir->z;
+
+ /* Compute determinant of the first 3x3 sub matrix (denominator) */
+ /* ============================================================= */
+
+ det = (imat[0][0] * imat[1][1] * imat[2][2] +
+ imat[0][1] * imat[1][2] * imat[2][0] +
+ imat[0][2] * imat[1][0] * imat[2][1] -
+ imat[0][2] * imat[1][1] * imat[2][0] -
+ imat[0][0] * imat[1][2] * imat[2][1] -
+ imat[2][2] * imat[0][1] * imat[1][0]);
+
+ /* If the determinant is non-zero, a intersection point exists */
+ /* =========================================================== */
+
+ if (det != 0.0)
+ {
+ /* Now, lets compute the numerator determinants (wow ;) */
+ /* ==================================================== */
+
+ det1 = (imat[0][3] * imat[1][1] * imat[2][2] +
+ imat[0][1] * imat[1][2] * imat[2][3] +
+ imat[0][2] * imat[1][3] * imat[2][1] -
+ imat[0][2] * imat[1][1] * imat[2][3] -
+ imat[1][2] * imat[2][1] * imat[0][3] -
+ imat[2][2] * imat[0][1] * imat[1][3]);
+
+ det2 = (imat[0][0] * imat[1][3] * imat[2][2] +
+ imat[0][3] * imat[1][2] * imat[2][0] +
+ imat[0][2] * imat[1][0] * imat[2][3] -
+ imat[0][2] * imat[1][3] * imat[2][0] -
+ imat[1][2] * imat[2][3] * imat[0][0] -
+ imat[2][2] * imat[0][3] * imat[1][0]);
+
+ det3 = (imat[0][0] * imat[1][1] * imat[2][3] +
+ imat[0][1] * imat[1][3] * imat[2][0] +
+ imat[0][3] * imat[1][0] * imat[2][1] -
+ imat[0][3] * imat[1][1] * imat[2][0] -
+ imat[1][3] * imat[2][1] * imat[0][0] -
+ imat[2][3] * imat[0][1] * imat[1][0]);
+
+ /* Now we have the simultaneous solutions. Lets compute the unknowns */
+ /* (skip u&v if t is <0, this means the intersection is behind us) */
+ /* ================================================================ */
+
+ t = det1 / det;
+
+ if (t > 0.0)
+ {
+ *u = 1.0 + ((det2 / det) - 0.5);
+ *v = 1.0 + ((det3 / det) - 0.5);
+
+ ipos->x = viewp->x + t * dir->x;
+ ipos->y = viewp->y + t * dir->y;
+ ipos->z = viewp->z + t * dir->z;
+
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+}
+
+/*****************************************************************************
+ * These routines computes the color of the surface
+ * of the plane at a given point
+ *****************************************************************************/
+
+GimpRGB
+get_ray_color_plane (GimpVector3 *pos)
+{
+ GimpRGB color = background;
+
+ static gint inside = FALSE;
+ static GimpVector3 ray, spos;
+ static gdouble vx, vy;
+
+ /* Construct a line from our VP to the point */
+ /* ========================================= */
+
+ gimp_vector3_sub (&ray, pos, &mapvals.viewpoint);
+ gimp_vector3_normalize (&ray);
+
+ /* Check for intersection. This is a quasi ray-tracer. */
+ /* =================================================== */
+
+ if (plane_intersect (&ray, &mapvals.viewpoint, &spos, &vx, &vy) == TRUE)
+ {
+ color = get_image_color (vx, vy, &inside);
+
+ if (color.a != 0.0 && inside == TRUE &&
+ mapvals.lightsource.type != NO_LIGHT)
+ {
+ /* Compute shading at this point */
+ /* ============================= */
+
+ color = phong_shade (&spos,
+ &mapvals.viewpoint,
+ &mapvals.normal,
+ &color,
+ &mapvals.lightsource.color,
+ mapvals.lightsource.type);
+
+ gimp_rgb_clamp (&color);
+ }
+ }
+
+ if (mapvals.transparent_background == FALSE && color.a < 1.0)
+ {
+ gimp_rgb_composite (&color, &background,
+ GIMP_RGB_COMPOSITE_BEHIND);
+ }
+
+ return color;
+}
+
+/***********************************************************************/
+/* Given the NorthPole, Equator and a third vector (normal) compute */
+/* the conversion from spherical oordinates to image space coordinates */
+/***********************************************************************/
+
+static void
+sphere_to_image (GimpVector3 *normal,
+ gdouble *u,
+ gdouble *v)
+{
+ static gdouble alpha, fac;
+ static GimpVector3 cross_prod;
+
+ alpha = acos (-gimp_vector3_inner_product (&mapvals.secondaxis, normal));
+
+ *v = alpha / G_PI;
+
+ if (*v == 0.0 || *v == 1.0)
+ {
+ *u = 0.0;
+ }
+ else
+ {
+ fac = (gimp_vector3_inner_product (&mapvals.firstaxis, normal) /
+ sin (alpha));
+
+ /* Make sure that we map to -1.0..1.0 (take care of rounding errors) */
+ /* ================================================================= */
+
+ fac = CLAMP (fac, -1.0, 1.0);
+
+ *u = acos (fac) / (2.0 * G_PI);
+
+ cross_prod = gimp_vector3_cross_product (&mapvals.secondaxis,
+ &mapvals.firstaxis);
+
+ if (gimp_vector3_inner_product (&cross_prod, normal) < 0.0)
+ *u = 1.0 - *u;
+ }
+}
+
+/***************************************************/
+/* Compute intersection point with sphere (if any) */
+/***************************************************/
+
+static gint
+sphere_intersect (GimpVector3 *dir,
+ GimpVector3 *viewp,
+ GimpVector3 *spos1,
+ GimpVector3 *spos2)
+{
+ static gdouble alpha, beta, tau, s1, s2, tmp;
+ static GimpVector3 t;
+
+ gimp_vector3_sub (&t, &mapvals.position, viewp);
+
+ alpha = gimp_vector3_inner_product (dir, &t);
+ beta = gimp_vector3_inner_product (&t, &t);
+
+ tau = alpha * alpha - beta + mapvals.radius * mapvals.radius;
+
+ if (tau >= 0.0)
+ {
+ tau = sqrt (tau);
+ s1 = alpha + tau;
+ s2 = alpha - tau;
+
+ if (s2 < s1)
+ {
+ tmp = s1;
+ s1 = s2;
+ s2 = tmp;
+ }
+
+ spos1->x = viewp->x + s1 * dir->x;
+ spos1->y = viewp->y + s1 * dir->y;
+ spos1->z = viewp->z + s1 * dir->z;
+ spos2->x = viewp->x + s2 * dir->x;
+ spos2->y = viewp->y + s2 * dir->y;
+ spos2->z = viewp->z + s2 * dir->z;
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+/*****************************************************************************
+ * These routines computes the color of the surface
+ * of the sphere at a given point
+ *****************************************************************************/
+
+GimpRGB
+get_ray_color_sphere (GimpVector3 *pos)
+{
+ GimpRGB color = background;
+
+ static GimpRGB color2;
+ static gint inside = FALSE;
+ static GimpVector3 normal, ray, spos1, spos2;
+ static gdouble vx, vy;
+
+ /* Check if ray is within the bounding box */
+ /* ======================================= */
+
+ if (pos->x<bx1 || pos->x>bx2 || pos->y<by1 || pos->y>by2)
+ return color;
+
+ /* Construct a line from our VP to the point */
+ /* ========================================= */
+
+ gimp_vector3_sub (&ray, pos, &mapvals.viewpoint);
+ gimp_vector3_normalize (&ray);
+
+ /* Check for intersection. This is a quasi ray-tracer. */
+ /* =================================================== */
+
+ if (sphere_intersect (&ray, &mapvals.viewpoint, &spos1, &spos2) == TRUE)
+ {
+ /* Compute spherical to rectangular mapping */
+ /* ======================================== */
+
+ gimp_vector3_sub (&normal, &spos1, &mapvals.position);
+ gimp_vector3_normalize (&normal);
+ sphere_to_image (&normal, &vx, &vy);
+ color = get_image_color (vx, vy, &inside);
+
+ /* Check for total transparency... */
+ /* =============================== */
+
+ if (color.a < 1.0)
+ {
+ /* Hey, we can see through here! */
+ /* Lets see what's on the other side.. */
+ /* =================================== */
+
+ color = phong_shade (&spos1,
+ &mapvals.viewpoint,
+ &normal,
+ &color,
+ &mapvals.lightsource.color,
+ mapvals.lightsource.type);
+
+ gimp_rgb_clamp (&color);
+
+ gimp_vector3_sub (&normal, &spos2, &mapvals.position);
+ gimp_vector3_normalize (&normal);
+ sphere_to_image (&normal, &vx, &vy);
+ color2 = get_image_color (vx, vy, &inside);
+
+ /* Make the normal point inwards */
+ /* ============================= */
+
+ gimp_vector3_mul (&normal, -1.0);
+
+ color2 = phong_shade (&spos2,
+ &mapvals.viewpoint,
+ &normal,
+ &color2,
+ &mapvals.lightsource.color,
+ mapvals.lightsource.type);
+
+ gimp_rgb_clamp (&color2);
+
+ /* Compute a mix of the first and second colors */
+ /* ============================================ */
+
+ gimp_rgb_composite (&color, &color2, GIMP_RGB_COMPOSITE_NORMAL);
+ gimp_rgb_clamp (&color);
+ }
+ else if (color.a != 0.0 &&
+ inside == TRUE &&
+ mapvals.lightsource.type != NO_LIGHT)
+ {
+ /* Compute shading at this point */
+ /* ============================= */
+
+ color = phong_shade (&spos1,
+ &mapvals.viewpoint,
+ &normal,
+ &color,
+ &mapvals.lightsource.color,
+ mapvals.lightsource.type);
+
+ gimp_rgb_clamp (&color);
+ }
+ }
+
+ if (mapvals.transparent_background == FALSE && color.a < 1.0)
+ {
+ gimp_rgb_composite (&color, &background,
+ GIMP_RGB_COMPOSITE_BEHIND);
+ }
+
+ return color;
+}
+
+/***************************************************/
+/* Transform the corners of the bounding box to 2D */
+/***************************************************/
+
+void
+compute_bounding_box (void)
+{
+ GimpVector3 p1, p2;
+ gdouble t;
+ GimpVector3 dir;
+
+ p1 = mapvals.position;
+ p1.x -= (mapvals.radius + 0.01);
+ p1.y -= (mapvals.radius + 0.01);
+
+ p2 = mapvals.position;
+ p2.x += (mapvals.radius + 0.01);
+ p2.y += (mapvals.radius + 0.01);
+
+ gimp_vector3_sub (&dir, &p1, &mapvals.viewpoint);
+ gimp_vector3_normalize (&dir);
+
+ if (dir.z != 0.0)
+ {
+ t = (-1.0 * mapvals.viewpoint.z) / dir.z;
+ p1.x = (mapvals.viewpoint.x + t * dir.x);
+ p1.y = (mapvals.viewpoint.y + t * dir.y);
+ }
+
+ gimp_vector3_sub (&dir, &p2, &mapvals.viewpoint);
+ gimp_vector3_normalize (&dir);
+
+ if (dir.z != 0.0)
+ {
+ t = (-1.0 * mapvals.viewpoint.z) / dir.z;
+ p2.x = (mapvals.viewpoint.x + t * dir.x);
+ p2.y = (mapvals.viewpoint.y + t * dir.y);
+ }
+
+ bx1 = p1.x;
+ by1 = p1.y;
+ bx2 = p2.x;
+ by2 = p2.y;
+}
+
+/* These two were taken from the Mesa source. Mesa is written */
+/* and is (C) by Brian Paul. vecmulmat() performs a post-mul by */
+/* a 4x4 matrix to a 1x4(3) vector. rotmat() creates a matrix */
+/* that by post-mul will rotate a 1x4(3) vector the given angle */
+/* about the given axis. */
+/* ============================================================ */
+
+void
+vecmulmat (GimpVector3 *u,
+ GimpVector3 *v,
+ gfloat m[16])
+{
+ gfloat v0=v->x, v1=v->y, v2=v->z;
+#define M(row,col) m[col*4+row]
+ u->x = v0 * M(0,0) + v1 * M(1,0) + v2 * M(2,0) + M(3,0);
+ u->y = v0 * M(0,1) + v1 * M(1,1) + v2 * M(2,1) + M(3,1);
+ u->z = v0 * M(0,2) + v1 * M(1,2) + v2 * M(2,2) + M(3,2);
+#undef M
+}
+
+void
+rotatemat (gfloat angle,
+ GimpVector3 *v,
+ gfloat m[16])
+{
+ /* This function contributed by Erich Boleyn (erich@uruk.org) */
+ gfloat mag, s, c;
+ gfloat xx, yy, zz, xy, yz, zx, xs, ys, zs, one_c;
+ gfloat IdentityMat[16];
+ gint cnt;
+
+ s = sin (angle * (G_PI / 180.0));
+ c = cos (angle * (G_PI / 180.0));
+
+ mag = sqrt (v->x*v->x + v->y*v->y + v->z*v->z);
+
+ if (mag == 0.0)
+ {
+ /* generate an identity matrix and return */
+
+ for (cnt = 0; cnt < 16; cnt++)
+ IdentityMat[cnt] = 0.0;
+
+ IdentityMat[0] = 1.0;
+ IdentityMat[5] = 1.0;
+ IdentityMat[10] = 1.0;
+ IdentityMat[15] = 1.0;
+
+ memcpy (m, IdentityMat, sizeof (gfloat) * 16);
+ return;
+ }
+
+ v->x /= mag;
+ v->y /= mag;
+ v->z /= mag;
+
+#define M(row,col) m[col*4+row]
+
+ xx = v->x * v->x;
+ yy = v->y * v->y;
+ zz = v->z * v->z;
+ xy = v->x * v->y;
+ yz = v->y * v->z;
+ zx = v->z * v->x;
+ xs = v->x * s;
+ ys = v->y * s;
+ zs = v->z * s;
+ one_c = 1.0F - c;
+
+ M(0,0) = (one_c * xx) + c;
+ M(0,1) = (one_c * xy) - zs;
+ M(0,2) = (one_c * zx) + ys;
+ M(0,3) = 0.0F;
+
+ M(1,0) = (one_c * xy) + zs;
+ M(1,1) = (one_c * yy) + c;
+ M(1,2) = (one_c * yz) - xs;
+ M(1,3) = 0.0F;
+
+ M(2,0) = (one_c * zx) - ys;
+ M(2,1) = (one_c * yz) + xs;
+ M(2,2) = (one_c * zz) + c;
+ M(2,3) = 0.0F;
+
+ M(3,0) = 0.0F;
+ M(3,1) = 0.0F;
+ M(3,2) = 0.0F;
+ M(3,3) = 1.0F;
+
+#undef M
+}
+
+/* Transpose the matrix m. If m is orthogonal (like a rotation matrix), */
+/* this is equal to the inverse of the matrix. */
+/* ==================================================================== */
+
+void
+transpose_mat (gfloat m[16])
+{
+ gint i, j;
+ gfloat t;
+
+ for (i = 0; i < 4; i++)
+ {
+ for (j = 0; j < i; j++)
+ {
+ t = m[j*4+i];
+ m[j*4+i] = m[i*4+j];
+ m[i*4+j] = t;
+ }
+ }
+}
+
+/* Compute the matrix product c=a*b */
+/* ================================ */
+
+void
+matmul (gfloat a[16],
+ gfloat b[16],
+ gfloat c[16])
+{
+ gint i, j, k;
+ gfloat value;
+
+#define A(row,col) a[col*4+row]
+#define B(row,col) b[col*4+row]
+#define C(row,col) c[col*4+row]
+
+ for (i = 0; i < 4; i++)
+ {
+ for (j = 0; j < 4; j++)
+ {
+ value = 0.0;
+
+ for (k = 0; k < 4; k++)
+ value += A(i,k) * B(k,j);
+
+ C(i,j) = value;
+ }
+ }
+
+#undef A
+#undef B
+#undef C
+}
+
+void
+ident_mat (gfloat m[16])
+{
+ gint i, j;
+
+#define M(row,col) m[col*4+row]
+
+ for (i = 0; i < 4; i++)
+ {
+ for (j = 0; j < 4; j++)
+ {
+ if (i == j)
+ M(i,j) = 1.0;
+ else
+ M(i,j) = 0.0;
+ }
+ }
+
+#undef M
+}
+
+static gboolean
+intersect_rect (gdouble u,
+ gdouble v,
+ gdouble w,
+ GimpVector3 viewp,
+ GimpVector3 dir,
+ FaceIntersectInfo *face_info)
+{
+ gboolean result = FALSE;
+ gdouble u2, v2;
+
+ if (dir.z!=0.0)
+ {
+ u2 = u / 2.0;
+ v2 = v / 2.0;
+
+ face_info->t = (w-viewp.z) / dir.z;
+ face_info->s.x = viewp.x + face_info->t * dir.x;
+ face_info->s.y = viewp.y + face_info->t * dir.y;
+ face_info->s.z = w;
+
+ if (face_info->s.x >= -u2 && face_info->s.x <= u2 &&
+ face_info->s.y >= -v2 && face_info->s.y <= v2)
+ {
+ face_info->u = (face_info->s.x + u2) / u;
+ face_info->v = (face_info->s.y + v2) / v;
+ result = TRUE;
+ }
+ }
+
+ return result;
+}
+
+static gboolean
+intersect_box (GimpVector3 scale,
+ GimpVector3 viewp,
+ GimpVector3 dir,
+ FaceIntersectInfo *face_intersect)
+{
+ GimpVector3 v, d, tmp, axis[3];
+ FaceIntersectInfo face_tmp;
+ gboolean result = FALSE;
+ gfloat m[16];
+ gint i = 0;
+
+ gimp_vector3_set (&axis[0], 1.0, 0.0, 0.0);
+ gimp_vector3_set (&axis[1], 0.0, 1.0, 0.0);
+ gimp_vector3_set (&axis[2], 0.0, 0.0, 1.0);
+
+ /* Front side */
+ /* ========== */
+
+ if (intersect_rect (scale.x, scale.y, scale.z / 2.0,
+ viewp, dir, &face_intersect[i]) == TRUE)
+ {
+ face_intersect[i].face = 0;
+ gimp_vector3_set (&face_intersect[i++].n, 0.0, 0.0, 1.0);
+ result = TRUE;
+ }
+
+ /* Back side */
+ /* ========= */
+
+ if (intersect_rect (scale.x, scale.y, -scale.z / 2.0,
+ viewp, dir, &face_intersect[i]) == TRUE)
+ {
+ face_intersect[i].face = 1;
+ face_intersect[i].u = 1.0 - face_intersect[i].u;
+ gimp_vector3_set (&face_intersect[i++].n, 0.0, 0.0, -1.0);
+ result = TRUE;
+ }
+
+ /* Check if we've found the two possible intersection points */
+ /* ========================================================= */
+
+ if (i < 2)
+ {
+ /* Top: Rotate viewpoint and direction into rectangle's local coordinate system */
+ /* ============================================================================ */
+
+ rotatemat (90, &axis[0], m);
+ vecmulmat (&v, &viewp, m);
+ vecmulmat (&d, &dir, m);
+
+ if (intersect_rect (scale.x, scale.z, scale.y / 2.0,
+ v, d, &face_intersect[i]) == TRUE)
+ {
+ face_intersect[i].face = 2;
+
+ transpose_mat (m);
+ vecmulmat(&tmp, &face_intersect[i].s, m);
+ face_intersect[i].s = tmp;
+
+ gimp_vector3_set (&face_intersect[i++].n, 0.0, -1.0, 0.0);
+ result = TRUE;
+ }
+ }
+
+ /* Check if we've found the two possible intersection points */
+ /* ========================================================= */
+
+ if (i < 2)
+ {
+ /* Bottom: Rotate viewpoint and direction into rectangle's local coordinate system */
+ /* =============================================================================== */
+
+ rotatemat (90, &axis[0], m);
+ vecmulmat (&v, &viewp, m);
+ vecmulmat (&d, &dir, m);
+
+ if (intersect_rect (scale.x, scale.z, -scale.y / 2.0,
+ v, d, &face_intersect[i]) == TRUE)
+ {
+ face_intersect[i].face = 3;
+
+ transpose_mat (m);
+
+ vecmulmat (&tmp, &face_intersect[i].s, m);
+ face_intersect[i].s = tmp;
+
+ face_intersect[i].v = 1.0 - face_intersect[i].v;
+
+ gimp_vector3_set (&face_intersect[i++].n, 0.0, 1.0, 0.0);
+
+ result = TRUE;
+ }
+ }
+
+ /* Check if we've found the two possible intersection points */
+ /* ========================================================= */
+
+ if (i < 2)
+ {
+ /* Left side: Rotate viewpoint and direction into rectangle's local coordinate system */
+ /* ================================================================================== */
+
+ rotatemat (90, &axis[1], m);
+ vecmulmat (&v, &viewp, m);
+ vecmulmat (&d, &dir, m);
+
+ if (intersect_rect (scale.z, scale.y, scale.x / 2.0,
+ v, d, &face_intersect[i]) == TRUE)
+ {
+ face_intersect[i].face = 4;
+
+ transpose_mat (m);
+ vecmulmat (&tmp, &face_intersect[i].s, m);
+ face_intersect[i].s = tmp;
+
+ gimp_vector3_set (&face_intersect[i++].n, 1.0, 0.0, 0.0);
+ result = TRUE;
+ }
+ }
+
+ /* Check if we've found the two possible intersection points */
+ /* ========================================================= */
+
+ if (i < 2)
+ {
+ /* Right side: Rotate viewpoint and direction into rectangle's local coordinate system */
+ /* =================================================================================== */
+
+ rotatemat (90, &axis[1], m);
+ vecmulmat (&v, &viewp, m);
+ vecmulmat (&d, &dir, m);
+
+ if (intersect_rect (scale.z, scale.y, -scale.x / 2.0,
+ v, d, &face_intersect[i]) == TRUE)
+ {
+ face_intersect[i].face = 5;
+
+ transpose_mat (m);
+ vecmulmat (&tmp, &face_intersect[i].s, m);
+
+ face_intersect[i].u = 1.0 - face_intersect[i].u;
+
+ gimp_vector3_set (&face_intersect[i++].n, -1.0, 0.0, 0.0);
+ result = TRUE;
+ }
+ }
+
+ /* Sort intersection points */
+ /* ======================== */
+
+ if (face_intersect[0].t > face_intersect[1].t)
+ {
+ face_tmp = face_intersect[0];
+ face_intersect[0] = face_intersect[1];
+ face_intersect[1] = face_tmp;
+ }
+
+ return result;
+}
+
+GimpRGB
+get_ray_color_box (GimpVector3 *pos)
+{
+ GimpVector3 lvp, ldir, vp, p, dir, ns, nn;
+ GimpRGB color, color2;
+ gfloat m[16];
+ gint i;
+ FaceIntersectInfo face_intersect[2];
+
+ color = background;
+ vp = mapvals.viewpoint;
+ p = *pos;
+
+ /* Translate viewpoint so that the box has its origin */
+ /* at its lower left corner. */
+ /* ================================================== */
+
+ vp.x = vp.x - mapvals.position.x;
+ vp.y = vp.y - mapvals.position.y;
+ vp.z = vp.z - mapvals.position.z;
+
+ p.x = p.x - mapvals.position.x;
+ p.y = p.y - mapvals.position.y;
+ p.z = p.z - mapvals.position.z;
+
+ /* Compute direction */
+ /* ================= */
+
+ gimp_vector3_sub (&dir, &p, &vp);
+ gimp_vector3_normalize (&dir);
+
+ /* Compute inverse of rotation matrix and apply it to */
+ /* the viewpoint and direction. This transforms the */
+ /* observer into the local coordinate system of the box */
+ /* ==================================================== */
+
+ memcpy (m, rotmat, sizeof (gfloat) * 16);
+
+ transpose_mat (m);
+
+ vecmulmat (&lvp, &vp, m);
+ vecmulmat (&ldir, &dir, m);
+
+ /* Ok. Now the observer is in the space where the box is located */
+ /* with its lower left corner at the origin and its axis aligned */
+ /* to the cartesian basis. Check if the transformed ray hits it. */
+ /* ============================================================= */
+
+ face_intersect[0].t = 1000000.0;
+ face_intersect[1].t = 1000000.0;
+
+ if (intersect_box (mapvals.scale, lvp, ldir, face_intersect) == TRUE)
+ {
+ /* We've hit the box. Transform the hit points and */
+ /* normals back into the world coordinate system */
+ /* =============================================== */
+
+ for (i = 0; i < 2; i++)
+ {
+ vecmulmat (&ns, &face_intersect[i].s, rotmat);
+ vecmulmat (&nn, &face_intersect[i].n, rotmat);
+
+ ns.x = ns.x + mapvals.position.x;
+ ns.y = ns.y + mapvals.position.y;
+ ns.z = ns.z + mapvals.position.z;
+
+ face_intersect[i].s = ns;
+ face_intersect[i].n = nn;
+ }
+
+ color = get_box_image_color (face_intersect[0].face,
+ face_intersect[0].u,
+ face_intersect[0].v);
+
+ /* Check for total transparency... */
+ /* =============================== */
+
+ if (color.a < 1.0)
+ {
+ /* Hey, we can see through here! */
+ /* Lets see what's on the other side.. */
+ /* =================================== */
+
+ color = phong_shade (&face_intersect[0].s,
+ &mapvals.viewpoint,
+ &face_intersect[0].n,
+ &color,
+ &mapvals.lightsource.color,
+ mapvals.lightsource.type);
+
+ gimp_rgb_clamp (&color);
+
+ color2 = get_box_image_color (face_intersect[1].face,
+ face_intersect[1].u,
+ face_intersect[1].v);
+
+ /* Make the normal point inwards */
+ /* ============================= */
+
+ gimp_vector3_mul (&face_intersect[1].n, -1.0);
+
+ color2 = phong_shade (&face_intersect[1].s,
+ &mapvals.viewpoint,
+ &face_intersect[1].n,
+ &color2,
+ &mapvals.lightsource.color,
+ mapvals.lightsource.type);
+
+ gimp_rgb_clamp (&color2);
+
+ if (mapvals.transparent_background == FALSE && color2.a < 1.0)
+ {
+ gimp_rgb_composite (&color2, &background,
+ GIMP_RGB_COMPOSITE_BEHIND);
+ }
+
+ /* Compute a mix of the first and second colors */
+ /* ============================================ */
+
+ gimp_rgb_composite (&color, &color2, GIMP_RGB_COMPOSITE_NORMAL);
+ gimp_rgb_clamp (&color);
+ }
+ else if (color.a != 0.0 && mapvals.lightsource.type != NO_LIGHT)
+ {
+ color = phong_shade (&face_intersect[0].s,
+ &mapvals.viewpoint,
+ &face_intersect[0].n,
+ &color,
+ &mapvals.lightsource.color,
+ mapvals.lightsource.type);
+
+ gimp_rgb_clamp (&color);
+ }
+ }
+ else
+ {
+ if (mapvals.transparent_background == TRUE)
+ gimp_rgb_set_alpha (&color, 0.0);
+ }
+
+ return color;
+}
+
+static gboolean
+intersect_circle (GimpVector3 vp,
+ GimpVector3 dir,
+ gdouble w,
+ FaceIntersectInfo *face_info)
+{
+ gboolean result = FALSE;
+ gdouble r, d;
+
+#define sqr(a) (a*a)
+
+ if (dir.y != 0.0)
+ {
+ face_info->t = (w-vp.y)/dir.y;
+ face_info->s.x = vp.x + face_info->t*dir.x;
+ face_info->s.y = w;
+ face_info->s.z = vp.z + face_info->t*dir.z;
+
+ r = sqrt (sqr (face_info->s.x) + sqr (face_info->s.z));
+
+ if (r <= mapvals.cylinder_radius)
+ {
+ d = 2.0 * mapvals.cylinder_radius;
+ face_info->u = (face_info->s.x + mapvals.cylinder_radius) / d;
+ face_info->v = (face_info->s.z + mapvals.cylinder_radius) / d;
+ result = TRUE;
+ }
+ }
+
+#undef sqr
+
+ return result;
+}
+
+static gboolean
+intersect_cylinder (GimpVector3 vp,
+ GimpVector3 dir,
+ FaceIntersectInfo *face_intersect)
+{
+ gdouble a, b, c, d, e, f, tmp, l;
+ gboolean result = FALSE;
+ gint i;
+
+#define sqr(a) (a*a)
+
+ a = sqr (dir.x) + sqr (dir.z);
+ b = 2.0 * (vp.x * dir.x + vp.z * dir.z);
+ c = sqr (vp.x) + sqr (vp.z) - sqr (mapvals.cylinder_radius);
+
+ d = sqr (b) - 4.0 * a * c;
+
+ if (d >= 0.0)
+ {
+ e = sqrt (d);
+ f = 2.0 * a;
+
+ if (f != 0.0)
+ {
+ result = TRUE;
+
+ face_intersect[0].t = (-b+e)/f;
+ face_intersect[1].t = (-b-e)/f;
+
+ if (face_intersect[0].t>face_intersect[1].t)
+ {
+ tmp = face_intersect[0].t;
+ face_intersect[0].t = face_intersect[1].t;
+ face_intersect[1].t = tmp;
+ }
+
+ for (i = 0; i < 2; i++)
+ {
+ face_intersect[i].s.x = vp.x + face_intersect[i].t * dir.x;
+ face_intersect[i].s.y = vp.y + face_intersect[i].t * dir.y;
+ face_intersect[i].s.z = vp.z + face_intersect[i].t * dir.z;
+
+ face_intersect[i].n = face_intersect[i].s;
+ face_intersect[i].n.y = 0.0;
+ gimp_vector3_normalize(&face_intersect[i].n);
+
+ l = mapvals.cylinder_length/2.0;
+
+ face_intersect[i].u = (atan2(face_intersect[i].s.x,face_intersect[i].s.z)+G_PI)/(2.0*G_PI);
+ face_intersect[i].v = (face_intersect[i].s.y+l)/mapvals.cylinder_length;
+
+ /* Mark hitpoint as on the cylinder hull */
+ /* ===================================== */
+
+ face_intersect[i].face = 0;
+
+ /* Check if we're completely off the cylinder axis */
+ /* =============================================== */
+
+ if (face_intersect[i].s.y>l || face_intersect[i].s.y<-l)
+ {
+ /* Check if we've hit a cap */
+ /* ======================== */
+
+ if (face_intersect[i].s.y>l)
+ {
+ if (intersect_circle(vp,dir,l,&face_intersect[i])==FALSE)
+ result = FALSE;
+ else
+ {
+ face_intersect[i].face = 2;
+ face_intersect[i].v = 1 - face_intersect[i].v;
+ gimp_vector3_set(&face_intersect[i].n, 0.0, 1.0, 0.0);
+ }
+ }
+ else
+ {
+ if (intersect_circle(vp,dir,-l,&face_intersect[i])==FALSE)
+ result = FALSE;
+ else
+ {
+ face_intersect[i].face = 1;
+ gimp_vector3_set(&face_intersect[i].n, 0.0, -1.0, 0.0);
+ }
+ }
+ }
+ }
+ }
+ }
+
+#undef sqr
+
+ return result;
+}
+
+static GimpRGB
+get_cylinder_color (gint face,
+ gdouble u,
+ gdouble v)
+{
+ GimpRGB color;
+ gint inside;
+
+ if (face == 0)
+ color = get_image_color (u, v, &inside);
+ else
+ color = get_cylinder_image_color (face - 1, u, v);
+
+ return color;
+}
+
+GimpRGB
+get_ray_color_cylinder (GimpVector3 *pos)
+{
+ GimpVector3 lvp, ldir, vp, p, dir, ns, nn;
+ GimpRGB color, color2;
+ gfloat m[16];
+ gint i;
+ FaceIntersectInfo face_intersect[2];
+
+ color = background;
+ vp = mapvals.viewpoint;
+ p = *pos;
+
+ vp.x = vp.x - mapvals.position.x;
+ vp.y = vp.y - mapvals.position.y;
+ vp.z = vp.z - mapvals.position.z;
+
+ p.x = p.x - mapvals.position.x;
+ p.y = p.y - mapvals.position.y;
+ p.z = p.z - mapvals.position.z;
+
+ /* Compute direction */
+ /* ================= */
+
+ gimp_vector3_sub (&dir, &p, &vp);
+ gimp_vector3_normalize (&dir);
+
+ /* Compute inverse of rotation matrix and apply it to */
+ /* the viewpoint and direction. This transforms the */
+ /* observer into the local coordinate system of the box */
+ /* ==================================================== */
+
+ memcpy (m, rotmat, sizeof (gfloat) * 16);
+
+ transpose_mat (m);
+
+ vecmulmat (&lvp, &vp, m);
+ vecmulmat (&ldir, &dir, m);
+
+ if (intersect_cylinder (lvp, ldir, face_intersect) == TRUE)
+ {
+ /* We've hit the cylinder. Transform the hit points and */
+ /* normals back into the world coordinate system */
+ /* ==================================================== */
+
+ for (i = 0; i < 2; i++)
+ {
+ vecmulmat (&ns, &face_intersect[i].s, rotmat);
+ vecmulmat (&nn, &face_intersect[i].n, rotmat);
+
+ ns.x = ns.x + mapvals.position.x;
+ ns.y = ns.y + mapvals.position.y;
+ ns.z = ns.z + mapvals.position.z;
+
+ face_intersect[i].s = ns;
+ face_intersect[i].n = nn;
+ }
+
+ color = get_cylinder_color (face_intersect[0].face,
+ face_intersect[0].u,
+ face_intersect[0].v);
+
+ /* Check for transparency... */
+ /* ========================= */
+
+ if (color.a < 1.0)
+ {
+ /* Hey, we can see through here! */
+ /* Lets see what's on the other side.. */
+ /* =================================== */
+
+ color = phong_shade (&face_intersect[0].s,
+ &mapvals.viewpoint,
+ &face_intersect[0].n,
+ &color,
+ &mapvals.lightsource.color,
+ mapvals.lightsource.type);
+
+ gimp_rgb_clamp (&color);
+
+ color2 = get_cylinder_color (face_intersect[1].face,
+ face_intersect[1].u,
+ face_intersect[1].v);
+
+ /* Make the normal point inwards */
+ /* ============================= */
+
+ gimp_vector3_mul (&face_intersect[1].n, -1.0);
+
+ color2 = phong_shade (&face_intersect[1].s,
+ &mapvals.viewpoint,
+ &face_intersect[1].n,
+ &color2,
+ &mapvals.lightsource.color,
+ mapvals.lightsource.type);
+
+ gimp_rgb_clamp (&color2);
+
+ if (mapvals.transparent_background == FALSE && color2.a < 1.0)
+ {
+ gimp_rgb_composite (&color2, &background,
+ GIMP_RGB_COMPOSITE_BEHIND);
+ }
+
+ /* Compute a mix of the first and second colors */
+ /* ============================================ */
+
+ gimp_rgb_composite (&color, &color2, GIMP_RGB_COMPOSITE_NORMAL);
+ gimp_rgb_clamp (&color);
+ }
+ else if (color.a != 0.0 && mapvals.lightsource.type != NO_LIGHT)
+ {
+ color = phong_shade (&face_intersect[0].s,
+ &mapvals.viewpoint,
+ &face_intersect[0].n,
+ &color,
+ &mapvals.lightsource.color,
+ mapvals.lightsource.type);
+
+ gimp_rgb_clamp (&color);
+ }
+ }
+ else
+ {
+ if (mapvals.transparent_background == TRUE)
+ gimp_rgb_set_alpha (&color, 0.0);
+ }
+
+ return color;
+}
diff --git a/plug-ins/map-object/map-object-shade.h b/plug-ins/map-object/map-object-shade.h
new file mode 100644
index 0000000..259e5eb
--- /dev/null
+++ b/plug-ins/map-object/map-object-shade.h
@@ -0,0 +1,26 @@
+#ifndef __MAPOBJECT_SHADE_H__
+#define __MAPOBJECT_SHADE_H__
+
+typedef GimpRGB (* get_ray_color_func) (GimpVector3 *pos);
+
+extern get_ray_color_func get_ray_color;
+
+GimpRGB get_ray_color_plane (GimpVector3 *pos);
+GimpRGB get_ray_color_sphere (GimpVector3 *pos);
+GimpRGB get_ray_color_box (GimpVector3 *pos);
+GimpRGB get_ray_color_cylinder (GimpVector3 *pos);
+void compute_bounding_box (void);
+
+void vecmulmat (GimpVector3 *u,
+ GimpVector3 *v,
+ gfloat m[16]);
+void rotatemat (gfloat angle,
+ GimpVector3 *v,
+ gfloat m[16]);
+void transpose_mat (gfloat m[16]);
+void matmul (gfloat a[16],
+ gfloat b[16],
+ gfloat c[16]);
+void ident_mat (gfloat m[16]);
+
+#endif /* __MAPOBJECT_SHADE_H__ */
diff --git a/plug-ins/map-object/map-object-stock.c b/plug-ins/map-object/map-object-stock.c
new file mode 100644
index 0000000..fc3c153
--- /dev/null
+++ b/plug-ins/map-object/map-object-stock.c
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gtk/gtk.h>
+
+#include "map-object-stock.h"
+
+#include "../lighting/images/stock-pixbufs.h"
+
+
+static GtkIconFactory *mapobject_icon_factory = NULL;
+
+static GtkStockItem mapobject_stock_items[] =
+{
+ { STOCK_INTENSITY_AMBIENT_LOW, NULL, 0, 0, NULL },
+ { STOCK_INTENSITY_AMBIENT_HIGH, NULL, 0, 0, NULL },
+ { STOCK_INTENSITY_DIFFUSE_LOW, NULL, 0, 0, NULL },
+ { STOCK_INTENSITY_DIFFUSE_HIGH, NULL, 0, 0, NULL },
+ { STOCK_REFLECTIVITY_DIFFUSE_LOW, NULL, 0, 0, NULL },
+ { STOCK_REFLECTIVITY_DIFFUSE_HIGH, NULL, 0, 0, NULL },
+ { STOCK_REFLECTIVITY_SPECULAR_LOW, NULL, 0, 0, NULL },
+ { STOCK_REFLECTIVITY_SPECULAR_HIGH, NULL, 0, 0, NULL },
+ { STOCK_REFLECTIVITY_HIGHLIGHT_LOW, NULL, 0, 0, NULL },
+ { STOCK_REFLECTIVITY_HIGHLIGHT_HIGH, NULL, 0, 0, NULL }
+};
+
+
+static void
+add_stock_icon (const gchar *stock_id,
+ GtkIconSize size,
+ const guint8 *inline_data)
+{
+ GtkIconSource *source;
+ GtkIconSet *set;
+ GdkPixbuf *pixbuf;
+
+ source = gtk_icon_source_new ();
+
+ gtk_icon_source_set_size (source, size);
+ gtk_icon_source_set_size_wildcarded (source, FALSE);
+
+ pixbuf = gdk_pixbuf_new_from_inline (-1, inline_data, FALSE, NULL);
+
+ gtk_icon_source_set_pixbuf (source, pixbuf);
+ g_object_unref (pixbuf);
+
+ set = gtk_icon_set_new ();
+
+ gtk_icon_set_add_source (set, source);
+ gtk_icon_source_free (source);
+
+ gtk_icon_factory_add (mapobject_icon_factory, stock_id, set);
+
+ gtk_icon_set_unref (set);
+}
+
+void
+mapobject_stock_init (void)
+{
+ static gboolean initialized = FALSE;
+
+ if (initialized)
+ return;
+
+ mapobject_icon_factory = gtk_icon_factory_new ();
+
+ add_stock_icon (STOCK_INTENSITY_AMBIENT_LOW, GTK_ICON_SIZE_BUTTON,
+ stock_intensity_ambient_low);
+ add_stock_icon (STOCK_INTENSITY_AMBIENT_HIGH, GTK_ICON_SIZE_BUTTON,
+ stock_intensity_ambient_high);
+ add_stock_icon (STOCK_INTENSITY_DIFFUSE_LOW, GTK_ICON_SIZE_BUTTON,
+ stock_intensity_diffuse_low);
+ add_stock_icon (STOCK_INTENSITY_DIFFUSE_HIGH, GTK_ICON_SIZE_BUTTON,
+ stock_intensity_diffuse_high);
+ add_stock_icon (STOCK_REFLECTIVITY_DIFFUSE_LOW, GTK_ICON_SIZE_BUTTON,
+ stock_reflectivity_diffuse_low);
+ add_stock_icon (STOCK_REFLECTIVITY_DIFFUSE_HIGH, GTK_ICON_SIZE_BUTTON,
+ stock_reflectivity_diffuse_high);
+ add_stock_icon (STOCK_REFLECTIVITY_SPECULAR_LOW, GTK_ICON_SIZE_BUTTON,
+ stock_reflectivity_specular_low);
+ add_stock_icon (STOCK_REFLECTIVITY_SPECULAR_HIGH, GTK_ICON_SIZE_BUTTON,
+ stock_reflectivity_specular_high);
+ add_stock_icon (STOCK_REFLECTIVITY_HIGHLIGHT_LOW, GTK_ICON_SIZE_BUTTON,
+ stock_reflectivity_highlight_low);
+ add_stock_icon (STOCK_REFLECTIVITY_HIGHLIGHT_HIGH, GTK_ICON_SIZE_BUTTON,
+ stock_reflectivity_highlight_high);
+
+ gtk_icon_factory_add_default (mapobject_icon_factory);
+
+ gtk_stock_add_static (mapobject_stock_items,
+ G_N_ELEMENTS (mapobject_stock_items));
+
+ initialized = TRUE;
+}
diff --git a/plug-ins/map-object/map-object-stock.h b/plug-ins/map-object/map-object-stock.h
new file mode 100644
index 0000000..9226383
--- /dev/null
+++ b/plug-ins/map-object/map-object-stock.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef __MAPOBJECT_STOCK_H__
+#define __MAPOBJECT_STOCK_H__
+
+
+#define STOCK_INTENSITY_AMBIENT_LOW "intensity-ambient-low"
+#define STOCK_INTENSITY_AMBIENT_HIGH "intensity-ambient-high"
+#define STOCK_INTENSITY_DIFFUSE_LOW "intensity-diffuse-low"
+#define STOCK_INTENSITY_DIFFUSE_HIGH "intensity-diffuse-high"
+#define STOCK_REFLECTIVITY_DIFFUSE_LOW "reflectivity-diffuse-low"
+#define STOCK_REFLECTIVITY_DIFFUSE_HIGH "reflectivity-diffuse-high"
+#define STOCK_REFLECTIVITY_SPECULAR_LOW "reflectivity-specular-low"
+#define STOCK_REFLECTIVITY_SPECULAR_HIGH "reflectivity-specular-high"
+#define STOCK_REFLECTIVITY_HIGHLIGHT_LOW "reflectivity-highlight-low"
+#define STOCK_REFLECTIVITY_HIGHLIGHT_HIGH "reflectivity-highlight-high"
+
+
+void mapobject_stock_init (void);
+
+
+#endif /* __MAPOBJECT_STOCK_H__ */
diff --git a/plug-ins/map-object/map-object-ui.c b/plug-ins/map-object/map-object-ui.c
new file mode 100644
index 0000000..7f1d96d
--- /dev/null
+++ b/plug-ins/map-object/map-object-ui.c
@@ -0,0 +1,1462 @@
+/**************************************************************/
+/* Dialog creation and updaters, callbacks and event-handlers */
+/**************************************************************/
+
+#include "config.h"
+
+#include <libgimp/gimp.h>
+#include <libgimp/gimpui.h>
+
+#include "arcball.h"
+#include "map-object-ui.h"
+#include "map-object-image.h"
+#include "map-object-apply.h"
+#include "map-object-preview.h"
+#include "map-object-main.h"
+#include "map-object-stock.h"
+
+#include "libgimp/stdplugins-intl.h"
+
+
+GtkWidget *previewarea = NULL;
+
+static GtkWidget *appwin = NULL;
+static GtkNotebook *options_note_book = NULL;
+
+static GtkWidget *pointlightwid;
+static GtkWidget *dirlightwid;
+
+static GtkAdjustment *xadj, *yadj, *zadj;
+
+static GtkWidget *box_page = NULL;
+static GtkWidget *cylinder_page = NULL;
+
+static guint left_button_pressed = FALSE;
+static guint light_hit = FALSE;
+
+
+static void create_main_notebook (GtkWidget *container);
+
+static gint preview_events (GtkWidget *area,
+ GdkEvent *event);
+
+static void update_light_pos_entries (void);
+
+static void double_adjustment_update (GtkAdjustment *adjustment,
+ gpointer data);
+
+static void toggle_update (GtkWidget *widget,
+ gpointer data);
+
+static void lightmenu_callback (GtkWidget *widget,
+ gpointer data);
+
+static void preview_callback (GtkWidget *widget,
+ gpointer data);
+
+static gint box_constrain (gint32 image_id,
+ gint32 drawable_id,
+ gpointer data);
+static gint cylinder_constrain (gint32 image_id,
+ gint32 drawable_id,
+ gpointer data);
+
+static GtkWidget * create_options_page (void);
+static GtkWidget * create_light_page (void);
+static GtkWidget * create_material_page (void);
+static GtkWidget * create_orientation_page (void);
+static GtkWidget * create_box_page (void);
+static GtkWidget * create_cylinder_page (void);
+
+
+/******************************************************/
+/* Update angle & position (redraw grid if necessary) */
+/******************************************************/
+
+static void
+double_adjustment_update (GtkAdjustment *adjustment,
+ gpointer data)
+{
+ gimp_double_adjustment_update (adjustment, data);
+
+ if (mapvals.livepreview)
+ compute_preview_image ();
+
+ gtk_widget_queue_draw (previewarea);
+}
+
+static void
+update_light_pos_entries (void)
+{
+ g_signal_handlers_block_by_func (xadj,
+ double_adjustment_update,
+ &mapvals.lightsource.position.x);
+ gtk_adjustment_set_value (GTK_ADJUSTMENT (xadj),
+ mapvals.lightsource.position.x);
+ g_signal_handlers_unblock_by_func (xadj,
+ double_adjustment_update,
+ &mapvals.lightsource.position.x);
+
+ g_signal_handlers_block_by_func (yadj,
+ double_adjustment_update,
+ &mapvals.lightsource.position.y);
+ gtk_adjustment_set_value (GTK_ADJUSTMENT (yadj),
+ mapvals.lightsource.position.y);
+ g_signal_handlers_unblock_by_func (yadj,
+ double_adjustment_update,
+ &mapvals.lightsource.position.y);
+
+ g_signal_handlers_block_by_func (zadj,
+ double_adjustment_update,
+ &mapvals.lightsource.position.z);
+ gtk_adjustment_set_value (GTK_ADJUSTMENT (zadj),
+ mapvals.lightsource.position.z);
+ g_signal_handlers_unblock_by_func (zadj,
+ double_adjustment_update,
+ &mapvals.lightsource.position.z);
+}
+
+/**********************/
+/* Std. toggle update */
+/**********************/
+
+static void
+toggle_update (GtkWidget *widget,
+ gpointer data)
+{
+ gimp_toggle_button_update (widget, data);
+
+ compute_preview_image ();
+ gtk_widget_queue_draw (previewarea);
+}
+
+/*****************************************/
+/* Main window light type menu callback. */
+/*****************************************/
+
+static void
+lightmenu_callback (GtkWidget *widget,
+ gpointer data)
+{
+ int active;
+
+ gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (widget),
+ &active);
+
+ mapvals.lightsource.type = active;
+
+ if (mapvals.lightsource.type == POINT_LIGHT)
+ {
+ gtk_widget_hide (dirlightwid);
+ gtk_widget_show (pointlightwid);
+ }
+ else if (mapvals.lightsource.type == DIRECTIONAL_LIGHT)
+ {
+ gtk_widget_hide (pointlightwid);
+ gtk_widget_show (dirlightwid);
+ }
+ else
+ {
+ gtk_widget_hide (pointlightwid);
+ gtk_widget_hide (dirlightwid);
+ }
+
+ if (mapvals.livepreview)
+ {
+ compute_preview_image ();
+ gtk_widget_queue_draw (previewarea);
+ }
+}
+
+/***************************************/
+/* Main window map type menu callback. */
+/***************************************/
+
+static void
+mapmenu_callback (GtkWidget *widget,
+ gpointer data)
+{
+ int active;
+
+ gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (widget),
+ &active);
+
+ mapvals.maptype = active;
+
+ if (mapvals.livepreview)
+ {
+ compute_preview_image ();
+ gtk_widget_queue_draw (previewarea);
+ }
+
+ if (mapvals.maptype == MAP_BOX)
+ {
+ if (cylinder_page && gtk_widget_get_parent (GTK_WIDGET (cylinder_page)) ==
+ GTK_WIDGET (options_note_book))
+ {
+ gtk_container_remove (GTK_CONTAINER (options_note_book), cylinder_page);
+ }
+
+ if (!box_page)
+ {
+ box_page = create_box_page ();
+ g_object_ref (box_page);
+ }
+ gtk_notebook_append_page (options_note_book,
+ box_page,
+ gtk_label_new_with_mnemonic (_("_Box")));
+ }
+ else if (mapvals.maptype == MAP_CYLINDER)
+ {
+ if (box_page && gtk_widget_get_parent (GTK_WIDGET (box_page)) ==
+ GTK_WIDGET (options_note_book))
+ {
+ gtk_container_remove (GTK_CONTAINER (options_note_book), box_page);
+ }
+
+ if (!cylinder_page)
+ {
+ cylinder_page = create_cylinder_page ();
+ g_object_ref (cylinder_page);
+ }
+ gtk_notebook_append_page (options_note_book,
+ cylinder_page,
+ gtk_label_new_with_mnemonic (_("C_ylinder")));
+ }
+ else
+ {
+ if (box_page && gtk_widget_get_parent (GTK_WIDGET (box_page)) ==
+ GTK_WIDGET (options_note_book))
+ {
+ gtk_container_remove (GTK_CONTAINER (options_note_book), box_page);
+ }
+
+ if (cylinder_page && gtk_widget_get_parent (GTK_WIDGET (cylinder_page)) ==
+ GTK_WIDGET (options_note_book))
+ {
+ gtk_container_remove (GTK_CONTAINER (options_note_book), cylinder_page);
+ }
+ }
+}
+
+/******************************************/
+/* Main window "Preview!" button callback */
+/******************************************/
+
+static void
+preview_callback (GtkWidget *widget,
+ gpointer data)
+{
+ compute_preview_image ();
+
+ gtk_widget_queue_draw (previewarea);
+}
+
+static void
+zoomed_callback (GimpZoomModel *model)
+{
+ mapvals.zoom = gimp_zoom_model_get_factor (model);
+
+ compute_preview_image ();
+
+ gtk_widget_queue_draw (previewarea);
+}
+
+/**********************************************/
+/* Main window "Apply" button callback. */
+/* Render to GIMP image, close down and exit. */
+/**********************************************/
+
+static gint
+box_constrain (gint32 image_id,
+ gint32 drawable_id,
+ gpointer data)
+{
+ if (drawable_id == -1)
+ return TRUE;
+
+ return (gimp_drawable_is_rgb (drawable_id) &&
+ !gimp_drawable_is_indexed (drawable_id));
+}
+
+static gint
+cylinder_constrain (gint32 image_id,
+ gint32 drawable_id,
+ gpointer data)
+{
+ if (drawable_id == -1)
+ return TRUE;
+
+ return (gimp_drawable_is_rgb (drawable_id) &&
+ !gimp_drawable_is_indexed (drawable_id));
+}
+
+/******************************/
+/* Preview area event handler */
+/******************************/
+
+static gint
+preview_events (GtkWidget *area,
+ GdkEvent *event)
+{
+ HVect __attribute__((unused))pos;
+/* HMatrix RotMat;
+ gdouble a,b,c; */
+
+ switch (event->type)
+ {
+ case GDK_ENTER_NOTIFY:
+ break;
+
+ case GDK_LEAVE_NOTIFY:
+ break;
+
+ case GDK_BUTTON_PRESS:
+ light_hit = check_light_hit (event->button.x, event->button.y);
+ if (light_hit == FALSE)
+ {
+ pos.x = -(2.0 * (gdouble) event->button.x /
+ (gdouble) PREVIEW_WIDTH - 1.0);
+ pos.y = (2.0 * (gdouble) event->button.y /
+ (gdouble) PREVIEW_HEIGHT - 1.0);
+ /*ArcBall_Mouse(pos);
+ ArcBall_BeginDrag(); */
+ }
+ left_button_pressed = TRUE;
+ break;
+
+ case GDK_BUTTON_RELEASE:
+ if (light_hit == TRUE)
+ {
+ compute_preview_image ();
+
+ gtk_widget_queue_draw (previewarea);
+ }
+ else
+ {
+ pos.x = -(2.0 * (gdouble) event->button.x /
+ (gdouble) PREVIEW_WIDTH - 1.0);
+ pos.y = (2.0 * (gdouble) event->button.y /
+ (gdouble) PREVIEW_HEIGHT - 1.0);
+ /*ArcBall_Mouse(pos);
+ ArcBall_EndDrag(); */
+ }
+ left_button_pressed = FALSE;
+ break;
+
+ case GDK_MOTION_NOTIFY:
+ if (left_button_pressed == TRUE)
+ {
+ if (light_hit == TRUE)
+ {
+ gint live = mapvals.livepreview;
+
+ mapvals.livepreview = FALSE;
+ update_light (event->motion.x, event->motion.y);
+ update_light_pos_entries ();
+ mapvals.livepreview = live;
+ }
+ else
+ {
+ pos.x = -(2.0 * (gdouble) event->motion.x /
+ (gdouble) PREVIEW_WIDTH - 1.0);
+ pos.y = (2.0 * (gdouble) event->motion.y /
+ (gdouble) PREVIEW_HEIGHT - 1.0);
+/* ArcBall_Mouse(pos);
+ ArcBall_Update();
+ ArcBall_Values(&a,&b,&c);
+ Alpha+=RadToDeg(-a);
+ Beta+RadToDeg(-b);
+ Gamma+=RadToDeg(-c);
+ if (Alpha>180) Alpha-=360;
+ if (Alpha<-180) Alpha+=360;
+ if (Beta>180) Beta-=360;
+ if (Beta<-180) Beta+=360;
+ if (Gamma>180) Gamma-=360;
+ if (Gamma<-180) Gamma+=360;
+ UpdateAngleSliders(); */
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ return FALSE;
+}
+
+
+static GtkWidget *
+spin_button_new (GtkAdjustment **adjustment, /* return value */
+ gdouble value,
+ gdouble lower,
+ gdouble upper,
+ gdouble step_increment,
+ gdouble page_increment,
+ gdouble page_size,
+ gdouble climb_rate,
+ guint digits)
+{
+ GtkWidget *spinbutton;
+
+ *adjustment = (GtkAdjustment *)
+ gtk_adjustment_new (value, lower, upper,
+ step_increment, page_increment, 0);
+
+ spinbutton = gimp_spin_button_new (GTK_ADJUSTMENT (*adjustment),
+ climb_rate, digits);
+
+ gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
+
+ return spinbutton;
+}
+
+/*******************************/
+/* Create general options page */
+/*******************************/
+
+static GtkWidget *
+create_options_page (void)
+{
+ GtkWidget *page;
+ GtkWidget *frame;
+ GtkWidget *vbox;
+ GtkWidget *hbox;
+ GtkWidget *label;
+ GtkWidget *combo;
+ GtkWidget *toggle;
+ GtkWidget *table;
+ GtkWidget *spinbutton;
+ GtkAdjustment *adj;
+
+ page = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
+ gtk_container_set_border_width (GTK_CONTAINER (page), 12);
+
+ /* General options */
+
+ frame = gimp_frame_new (_("General Options"));
+ gtk_box_pack_start (GTK_BOX (page), frame, FALSE, FALSE, 0);
+ gtk_widget_show (frame);
+
+ vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
+ gtk_container_add (GTK_CONTAINER (frame), vbox);
+ gtk_widget_show (vbox);
+
+ hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
+ gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
+ gtk_widget_show (hbox);
+
+ label = gtk_label_new (_("Map to:"));
+ gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
+ gtk_widget_show (label);
+
+ combo = gimp_int_combo_box_new (_("Plane"), MAP_PLANE,
+ _("Sphere"), MAP_SPHERE,
+ _("Box"), MAP_BOX,
+ _("Cylinder"), MAP_CYLINDER,
+ NULL);
+ gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (combo), mapvals.maptype);
+ gtk_box_pack_start (GTK_BOX (hbox), combo, TRUE, TRUE, 0);
+ gtk_widget_show (combo);
+
+ g_signal_connect (combo, "changed",
+ G_CALLBACK (mapmenu_callback),
+ &mapvals.maptype);
+
+ gimp_help_set_help_data (combo, _("Type of object to map to"), NULL);
+
+ toggle = gtk_check_button_new_with_label (_("Transparent background"));
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
+ mapvals.transparent_background);
+ gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
+ gtk_widget_show (toggle);
+
+ g_signal_connect (toggle, "toggled",
+ G_CALLBACK (toggle_update),
+ &mapvals.transparent_background);
+
+ gimp_help_set_help_data (toggle,
+ _("Make image transparent outside object"), NULL);
+
+ toggle = gtk_check_button_new_with_label (_("Tile source image"));
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
+ mapvals.tiled);
+ gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
+ gtk_widget_show (toggle);
+
+ g_signal_connect (toggle, "toggled",
+ G_CALLBACK (toggle_update),
+ &mapvals.tiled);
+
+ gimp_help_set_help_data (toggle,
+ _("Tile source image: useful for infinite planes"),
+ NULL);
+
+ toggle = gtk_check_button_new_with_label (_("Create new image"));
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
+ mapvals.create_new_image);
+ gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
+ gtk_widget_show (toggle);
+
+ g_signal_connect (toggle, "toggled",
+ G_CALLBACK (gimp_toggle_button_update),
+ &mapvals.create_new_image);
+
+ gimp_help_set_help_data (toggle,
+ _("Create a new image when applying filter"), NULL);
+
+ toggle = gtk_check_button_new_with_label (_("Create new layer"));
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
+ mapvals.create_new_layer);
+ gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
+ gtk_widget_show (toggle);
+
+ g_signal_connect (toggle, "toggled",
+ G_CALLBACK (gimp_toggle_button_update),
+ &mapvals.create_new_layer);
+
+ gimp_help_set_help_data (toggle,
+ _("Create a new layer when applying filter"), NULL);
+
+ /* Antialiasing options */
+
+ frame = gimp_frame_new (NULL);
+ gtk_box_pack_start (GTK_BOX (page), frame, FALSE, FALSE, 0);
+ gtk_widget_show (frame);
+
+ toggle = gtk_check_button_new_with_mnemonic (_("Enable _antialiasing"));
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
+ mapvals.antialiasing);
+ gtk_frame_set_label_widget (GTK_FRAME (frame), toggle);
+ gtk_widget_show (toggle);
+
+ g_signal_connect (toggle, "toggled",
+ G_CALLBACK (gimp_toggle_button_update),
+ &mapvals.antialiasing);
+
+ gimp_help_set_help_data (toggle,
+ _("Enable/disable jagged edges removal "
+ "(antialiasing)"), NULL);
+
+ table = gtk_table_new (2, 3, FALSE);
+ gtk_table_set_col_spacings (GTK_TABLE (table), 6);
+ gtk_table_set_row_spacings (GTK_TABLE (table), 6);
+ gtk_container_add (GTK_CONTAINER (frame), table);
+ gtk_widget_show (table);
+
+ g_object_bind_property (toggle, "active",
+ table, "sensitive",
+ G_BINDING_SYNC_CREATE);
+
+ adj = (GtkAdjustment *)
+ gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
+ _("_Depth:"), 0, 0,
+ mapvals.maxdepth, 1.0, 5.0, 0.1, 1.0,
+ 1, TRUE, 0, 0,
+ _("Antialiasing quality. Higher is better, "
+ "but slower"), NULL);
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (gimp_double_adjustment_update),
+ &mapvals.maxdepth);
+
+ spinbutton = spin_button_new (&adj, mapvals.pixelthreshold,
+ 0.001, 1000, 0.1, 1, 0, 0, 3);
+ gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
+ _("_Threshold:"), 0.0, 0.5,
+ spinbutton, 1, TRUE);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.pixelthreshold);
+
+ gimp_help_set_help_data (spinbutton,
+ _("Stop when pixel differences are smaller than "
+ "this value"), NULL);
+
+ gtk_widget_show (page);
+
+ return page;
+}
+
+/******************************/
+/* Create light settings page */
+/******************************/
+
+static GtkWidget *
+create_light_page (void)
+{
+ GtkWidget *page;
+ GtkWidget *frame;
+ GtkWidget *table;
+ GtkWidget *combo;
+ GtkWidget *colorbutton;
+ GtkWidget *spinbutton;
+ GtkAdjustment *adj;
+
+ page = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
+ gtk_container_set_border_width (GTK_CONTAINER (page), 12);
+
+ frame = gimp_frame_new (_("Light Settings"));
+ gtk_box_pack_start (GTK_BOX (page), frame, FALSE, FALSE, 0);
+ gtk_widget_show (frame);
+
+ table = gtk_table_new (2, 2, FALSE);
+ gtk_table_set_col_spacings (GTK_TABLE (table), 6);
+ gtk_table_set_row_spacings (GTK_TABLE (table), 6);
+ gtk_container_add (GTK_CONTAINER (frame), table); gtk_widget_show (table);
+
+ combo = gimp_int_combo_box_new (_("Point light"), POINT_LIGHT,
+ _("Directional light"), DIRECTIONAL_LIGHT,
+ _("No light"), NO_LIGHT,
+ NULL);
+ gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (combo),
+ mapvals.lightsource.type);
+ gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
+ _("Lightsource type:"), 0.0, 0.5,
+ combo, 1, FALSE);
+
+ g_signal_connect (combo, "changed",
+ G_CALLBACK (lightmenu_callback),
+ &mapvals.lightsource.type);
+
+ gimp_help_set_help_data (combo, _("Type of light source to apply"), NULL);
+
+ colorbutton = gimp_color_button_new (_("Select lightsource color"),
+ 64, 16,
+ &mapvals.lightsource.color,
+ GIMP_COLOR_AREA_FLAT);
+ gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
+ _("Lightsource color:"), 0.0, 0.5,
+ colorbutton, 1, FALSE);
+
+ g_signal_connect (colorbutton, "color-changed",
+ G_CALLBACK (gimp_color_button_get_color),
+ &mapvals.lightsource.color);
+
+ gimp_help_set_help_data (colorbutton,
+ _("Set light source color"), NULL);
+
+ pointlightwid = gimp_frame_new (_("Position"));
+ gtk_box_pack_start (GTK_BOX (page), pointlightwid, FALSE, FALSE, 0);
+
+ if (mapvals.lightsource.type == POINT_LIGHT)
+ gtk_widget_show (pointlightwid);
+
+ table = gtk_table_new (3, 2, FALSE);
+ gtk_table_set_col_spacings (GTK_TABLE (table), 6);
+ gtk_table_set_row_spacings (GTK_TABLE (table), 6);
+ gtk_container_add (GTK_CONTAINER (pointlightwid), table);
+ gtk_widget_show (table);
+
+ spinbutton = spin_button_new (&xadj, mapvals.lightsource.position.x,
+ -G_MAXFLOAT, G_MAXFLOAT,
+ 0.1, 1.0, 0.0, 0.0, 2);
+ gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
+ _("X:"), 0.0, 0.5,
+ spinbutton, 1, TRUE);
+
+ g_signal_connect (xadj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.lightsource.position.x);
+
+ gimp_help_set_help_data (spinbutton,
+ _("Light source X position in XYZ space"), NULL);
+
+ spinbutton = spin_button_new (&yadj, mapvals.lightsource.position.y,
+ -G_MAXFLOAT, G_MAXFLOAT,
+ 0.1, 1.0, 0.0, 0.0, 2);
+ gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
+ _("Y:"), 0.0, 0.5,
+ spinbutton, 1, TRUE);
+
+ g_signal_connect (yadj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.lightsource.position.y);
+
+ gimp_help_set_help_data (spinbutton,
+ _("Light source Y position in XYZ space"), NULL);
+
+ spinbutton = spin_button_new (&zadj, mapvals.lightsource.position.z,
+ -G_MAXFLOAT, G_MAXFLOAT,
+ 0.1, 1.0, 0.0, 0.0, 2);
+ gimp_table_attach_aligned (GTK_TABLE (table), 0, 2,
+ _("Z:"), 0.0, 0.5,
+ spinbutton, 1, TRUE);
+
+ g_signal_connect (zadj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.lightsource.position.z);
+
+ gimp_help_set_help_data (spinbutton,
+ _("Light source Z position in XYZ space"), NULL);
+
+
+ dirlightwid = gimp_frame_new (_("Direction Vector"));
+ gtk_box_pack_start (GTK_BOX (page), dirlightwid, FALSE, FALSE, 0);
+
+ if (mapvals.lightsource.type == DIRECTIONAL_LIGHT)
+ gtk_widget_show (dirlightwid);
+
+ table = gtk_table_new (3, 2, FALSE);
+ gtk_table_set_col_spacings (GTK_TABLE (table), 6);
+ gtk_table_set_row_spacings (GTK_TABLE (table), 6);
+ gtk_container_add (GTK_CONTAINER (dirlightwid), table);
+ gtk_widget_show (table);
+
+ spinbutton = spin_button_new (&adj, mapvals.lightsource.direction.x,
+ -1.0, 1.0, 0.01, 0.1, 0.0, 0.0, 2);
+ gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
+ _("X:"), 0.0, 0.5,
+ spinbutton, 1, TRUE);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.lightsource.direction.x);
+
+ gimp_help_set_help_data (spinbutton,
+ _("Light source X direction in XYZ space"), NULL);
+
+ spinbutton = spin_button_new (&adj, mapvals.lightsource.direction.y,
+ -1.0, 1.0, 0.01, 0.1, 0.0, 0.0, 2);
+ gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
+ _("Y:"), 0.0, 0.5,
+ spinbutton, 1, TRUE);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.lightsource.direction.y);
+
+ gimp_help_set_help_data (spinbutton,
+ _("Light source Y direction in XYZ space"), NULL);
+
+ spinbutton = spin_button_new (&adj, mapvals.lightsource.direction.z,
+ -1.0, 1.0, 0.01, 0.1, 0.0, 0.0, 2);
+ gimp_table_attach_aligned (GTK_TABLE (table), 0, 2,
+ _("Z:"), 0.0, 0.5,
+ spinbutton, 1, TRUE);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.lightsource.direction.z);
+
+ gimp_help_set_help_data (spinbutton,
+ _("Light source Z direction in XYZ space"), NULL);
+
+ gtk_widget_show (page);
+
+ return page;
+}
+
+/*********************************/
+/* Create material settings page */
+/*********************************/
+
+static GtkWidget *
+create_material_page (void)
+{
+ GtkSizeGroup *group = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);
+ GtkWidget *page;
+ GtkWidget *frame;
+ GtkWidget *table;
+ GtkWidget *label;
+ GtkWidget *hbox;
+ GtkWidget *spinbutton;
+ GtkWidget *image;
+ GtkAdjustment *adj;
+
+ page = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
+ gtk_container_set_border_width (GTK_CONTAINER (page), 12);
+
+ frame = gimp_frame_new (_("Intensity Levels"));
+ gtk_box_pack_start (GTK_BOX (page), frame, FALSE, FALSE, 0);
+ gtk_widget_show (frame);
+
+ hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
+ gtk_container_add (GTK_CONTAINER (frame), hbox);
+ gtk_widget_show (hbox);
+
+ table = gtk_table_new (2, 4, FALSE);
+ gtk_table_set_row_spacings (GTK_TABLE (table), 6);
+ gtk_table_set_col_spacings (GTK_TABLE (table), 6);
+ gtk_box_pack_start (GTK_BOX (hbox), table, FALSE, FALSE, 0);
+ gtk_widget_show (table);
+
+ /* Ambient intensity */
+
+ image = gtk_image_new_from_stock (STOCK_INTENSITY_AMBIENT_LOW,
+ GTK_ICON_SIZE_BUTTON);
+ label = gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
+ _("Ambient:"), 0.0, 0.5,
+ image, 1, FALSE);
+ gtk_size_group_add_widget (group, label);
+
+ spinbutton = spin_button_new (&adj, mapvals.material.ambient_int,
+ 0, G_MAXFLOAT, 0.1, 1.0, 0.0, 0.0, 2);
+ gtk_table_attach (GTK_TABLE (table), spinbutton, 2, 3, 0, 1,
+ GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
+ gtk_widget_show (spinbutton);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.material.ambient_int);
+
+ gimp_help_set_help_data (spinbutton,
+ _("Amount of original color to show where no "
+ "direct light falls"), NULL);
+
+ image = gtk_image_new_from_stock (STOCK_INTENSITY_AMBIENT_HIGH,
+ GTK_ICON_SIZE_BUTTON);
+ gtk_table_attach (GTK_TABLE (table), image, 3, 4, 0, 1,
+ GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
+ gtk_widget_show (image);
+
+ /* Diffuse intensity */
+
+ image = gtk_image_new_from_stock (STOCK_INTENSITY_DIFFUSE_LOW,
+ GTK_ICON_SIZE_BUTTON);
+ label = gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
+ _("Diffuse:"), 0.0, 0.5,
+ image, 1, FALSE);
+ gtk_size_group_add_widget (group, label);
+
+ spinbutton = spin_button_new (&adj, mapvals.material.diffuse_int,
+ 0, G_MAXFLOAT, 0.1, 1.0, 0.0, 0.0, 2);
+ gtk_table_attach (GTK_TABLE (table), spinbutton, 2, 3, 1, 2,
+ GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
+ gtk_widget_show (spinbutton);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.material.diffuse_int);
+
+ gimp_help_set_help_data (spinbutton,
+ _("Intensity of original color when lit by a light "
+ "source"), NULL);
+
+ image = gtk_image_new_from_stock (STOCK_INTENSITY_DIFFUSE_HIGH,
+ GTK_ICON_SIZE_BUTTON);
+ gtk_table_attach (GTK_TABLE (table), image, 3, 4, 1, 2,
+ GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
+ gtk_widget_show (image);
+
+ frame = gimp_frame_new (_("Reflectivity"));
+ gtk_box_pack_start (GTK_BOX (page), frame, FALSE, FALSE, 0);
+ gtk_widget_show (frame);
+
+ hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
+ gtk_container_add (GTK_CONTAINER (frame), hbox);
+ gtk_widget_show (hbox);
+
+ table = gtk_table_new (3, 4, FALSE);
+ gtk_table_set_row_spacings (GTK_TABLE (table), 6);
+ gtk_table_set_col_spacings (GTK_TABLE (table), 6);
+ gtk_box_pack_start (GTK_BOX (hbox), table, FALSE, FALSE, 0);
+ gtk_widget_show (table);
+
+ /* Diffuse reflection */
+
+ image = gtk_image_new_from_stock (STOCK_REFLECTIVITY_DIFFUSE_LOW,
+ GTK_ICON_SIZE_BUTTON);
+ label = gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
+ _("Diffuse:"), 0.0, 0.5,
+ image, 1, FALSE);
+ gtk_size_group_add_widget (group, label);
+
+ spinbutton = spin_button_new (&adj, mapvals.material.diffuse_ref,
+ 0, G_MAXFLOAT, 0.1, 1.0, 0.0, 0.0, 2);
+ gtk_table_attach (GTK_TABLE (table), spinbutton, 2, 3, 0, 1,
+ GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
+ gtk_widget_show (spinbutton);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.material.diffuse_ref);
+
+ gimp_help_set_help_data (spinbutton,
+ _("Higher values makes the object reflect more "
+ "light (appear lighter)"), NULL);
+
+ image = gtk_image_new_from_stock (STOCK_REFLECTIVITY_DIFFUSE_HIGH,
+ GTK_ICON_SIZE_BUTTON);
+ gtk_table_attach (GTK_TABLE (table), image, 3, 4, 0, 1,
+ GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
+ gtk_widget_show (image);
+
+ /* Specular reflection */
+
+ image = gtk_image_new_from_stock (STOCK_REFLECTIVITY_SPECULAR_LOW,
+ GTK_ICON_SIZE_BUTTON);
+ label = gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
+ _("Specular:"), 0.0, 0.5,
+ image, 1, FALSE);
+ gtk_size_group_add_widget (group, label);
+
+ spinbutton = spin_button_new (&adj, mapvals.material.specular_ref,
+ 0, G_MAXFLOAT, 0.1, 1.0, 0.0, 0.0, 2);
+ gtk_table_attach (GTK_TABLE (table), spinbutton, 2, 3, 1, 2,
+ GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
+ gtk_widget_show (spinbutton);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.material.specular_ref);
+
+ gimp_help_set_help_data (spinbutton,
+ _("Controls how intense the highlights will be"),
+ NULL);
+
+ image = gtk_image_new_from_stock (STOCK_REFLECTIVITY_SPECULAR_HIGH,
+ GTK_ICON_SIZE_BUTTON);
+ gtk_table_attach (GTK_TABLE (table), image, 3, 4, 1, 2,
+ GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
+ gtk_widget_show (image);
+
+ /* Highlight */
+
+ image = gtk_image_new_from_stock (STOCK_REFLECTIVITY_HIGHLIGHT_LOW,
+ GTK_ICON_SIZE_BUTTON);
+ label = gimp_table_attach_aligned (GTK_TABLE (table), 0, 2,
+ _("Highlight:"), 0.0, 0.5,
+ image, 1, FALSE);
+ gtk_size_group_add_widget (group, label);
+
+ spinbutton = spin_button_new (&adj, mapvals.material.highlight,
+ 0, G_MAXFLOAT, 0.1, 1.0, 0.0, 0.0, 2);
+ gtk_table_attach (GTK_TABLE (table), spinbutton, 2, 3, 2, 3,
+ GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
+ gtk_widget_show (spinbutton);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.material.highlight);
+
+ gimp_help_set_help_data (spinbutton,
+ _("Higher values makes the highlights more focused"),
+ NULL);
+
+ image = gtk_image_new_from_stock (STOCK_REFLECTIVITY_HIGHLIGHT_HIGH,
+ GTK_ICON_SIZE_BUTTON);
+ gtk_table_attach (GTK_TABLE (table), image, 3, 4, 2, 3,
+ GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
+ gtk_widget_show (image);
+
+ gtk_widget_show (page);
+
+ g_object_unref (group);
+
+ return page;
+}
+
+/****************************************/
+/* Create orientation and position page */
+/****************************************/
+
+static GtkWidget *
+create_orientation_page (void)
+{
+ GtkSizeGroup *group = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);
+ GtkWidget *page;
+ GtkWidget *frame;
+ GtkWidget *table;
+ GtkAdjustment *adj;
+
+ page = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
+ gtk_container_set_border_width (GTK_CONTAINER (page), 12);
+
+ frame = gimp_frame_new (_("Position"));
+ gtk_box_pack_start (GTK_BOX (page), frame, FALSE, FALSE, 0);
+ gtk_widget_show (frame);
+
+ table = gtk_table_new (3, 3, FALSE);
+ gtk_table_set_col_spacings (GTK_TABLE (table), 6);
+ gtk_table_set_row_spacings (GTK_TABLE (table), 6);
+ gtk_container_add (GTK_CONTAINER (frame), table);
+ gtk_widget_show (table);
+
+ adj = (GtkAdjustment *)
+ gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
+ _("X:"), 0, 0,
+ mapvals.position.x, -1.0, 2.0, 0.01, 0.1, 5,
+ TRUE, 0, 0,
+ _("Object X position in XYZ space"), NULL);
+ gtk_size_group_add_widget (group, GIMP_SCALE_ENTRY_SPINBUTTON (adj));
+ gtk_spin_button_configure (GIMP_SCALE_ENTRY_SPINBUTTON (adj),
+ GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.01, 5);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.position.x);
+
+ adj = (GtkAdjustment *)
+ gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
+ _("Y:"), 0, 0,
+ mapvals.position.y, -1.0, 2.0, 0.01, 0.1, 5,
+ TRUE, 0, 0,
+ _("Object Y position in XYZ space"), NULL);
+ gtk_size_group_add_widget (group, GIMP_SCALE_ENTRY_SPINBUTTON (adj));
+ gtk_spin_button_configure (GIMP_SCALE_ENTRY_SPINBUTTON (adj),
+ GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.01, 5);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.position.y);
+
+ adj = (GtkAdjustment *)
+ gimp_scale_entry_new (GTK_TABLE (table), 0, 2,
+ _("Z:"), 0, 0,
+ mapvals.position.z, -1.0, 2.0, 0.01, 0.1, 5,
+ TRUE, 0, 0,
+ _("Object Z position in XYZ space"), NULL);
+ gtk_size_group_add_widget (group, GIMP_SCALE_ENTRY_SPINBUTTON (adj));
+ gtk_spin_button_configure (GIMP_SCALE_ENTRY_SPINBUTTON (adj),
+ GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.01, 5);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.position.z);
+
+ frame = gimp_frame_new (_("Rotation"));
+ gtk_box_pack_start (GTK_BOX (page), frame, FALSE, FALSE, 0);
+ gtk_widget_show (frame);
+
+ table = gtk_table_new (3, 3, FALSE);
+ gtk_table_set_col_spacings (GTK_TABLE (table), 6);
+ gtk_table_set_row_spacings (GTK_TABLE (table), 6);
+ gtk_container_add (GTK_CONTAINER (frame), table);
+ gtk_widget_show (table);
+
+ adj = (GtkAdjustment *)
+ gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
+ _("X:"), 0, 0,
+ mapvals.alpha, -180.0, 180.0, 1.0, 15.0, 1,
+ TRUE, 0, 0,
+ _("Rotation angle about X axis"), NULL);
+ gtk_size_group_add_widget (group, GIMP_SCALE_ENTRY_SPINBUTTON (adj));
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.alpha);
+
+ adj = (GtkAdjustment *)
+ gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
+ _("Y:"), 0, 0,
+ mapvals.beta, -180.0, 180.0, 1.0, 15.0, 1,
+ TRUE, 0, 0,
+ _("Rotation angle about Y axis"), NULL);
+ gtk_size_group_add_widget (group, GIMP_SCALE_ENTRY_SPINBUTTON (adj));
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.beta);
+
+ adj = (GtkAdjustment *)
+ gimp_scale_entry_new (GTK_TABLE (table), 0, 2,
+ _("Z:"), 0, 0,
+ mapvals.gamma, -180.0, 180.0, 1.0, 15.0, 1,
+ TRUE, 0, 0,
+ _("Rotation angle about Z axis"), NULL);
+ gtk_size_group_add_widget (group, GIMP_SCALE_ENTRY_SPINBUTTON (adj));
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.gamma);
+
+ gtk_widget_show (page);
+
+ g_object_unref (group);
+
+ return page;
+}
+
+static GtkWidget *
+create_box_page (void)
+{
+ GtkWidget *page;
+ GtkWidget *frame;
+ GtkWidget *vbox;
+ GtkWidget *table;
+ GtkAdjustment *adj;
+ gint i;
+
+ static gchar *labels[] =
+ {
+ N_("Front:"), N_("Back:"),
+ N_("Top:"), N_("Bottom:"),
+ N_("Left:"), N_("Right:")
+ };
+
+ page = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
+ gtk_container_set_border_width (GTK_CONTAINER (page), 12);
+
+ frame = gimp_frame_new (_("Map Images to Box Faces"));
+ gtk_box_pack_start (GTK_BOX (page), frame, FALSE, FALSE, 0);
+ gtk_widget_show (frame);
+
+ vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
+ gtk_container_add (GTK_CONTAINER (frame), vbox);
+ gtk_widget_show (vbox);
+
+ table = gtk_table_new (6, 2, FALSE);
+ gtk_table_set_row_spacings (GTK_TABLE(table), 6);
+ gtk_table_set_col_spacings (GTK_TABLE(table), 6);
+ gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 5);
+ gtk_widget_show (table);
+
+ for (i = 0; i < 6; i++)
+ {
+ GtkWidget *combo;
+
+ combo = gimp_drawable_combo_box_new (box_constrain, NULL);
+ gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo),
+ mapvals.boxmap_id[i],
+ G_CALLBACK (gimp_int_combo_box_get_active),
+ &mapvals.boxmap_id[i]);
+
+ gimp_table_attach_aligned (GTK_TABLE (table), 0, i,
+ gettext (labels[i]), 0.0, 0.5,
+ combo, 1, FALSE);
+ }
+
+ /* Scale scales */
+
+ table = gtk_table_new (3, 3, FALSE);
+ gtk_table_set_row_spacings (GTK_TABLE(table), 6);
+ gtk_table_set_col_spacings (GTK_TABLE(table), 6);
+ gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
+ gtk_widget_show (table);
+
+ adj = (GtkAdjustment *)
+ gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
+ _("Scale X:"), 0, 0,
+ mapvals.scale.x, 0.0, 5.0, 0.01, 0.1, 2,
+ TRUE, 0, 0,
+ _("X scale (size)"), NULL);
+ gtk_spin_button_configure (GIMP_SCALE_ENTRY_SPINBUTTON (adj),
+ GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.1, 2);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.scale.x);
+
+ adj = (GtkAdjustment *)
+ gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
+ _("Y:"), 0, 0,
+ mapvals.scale.y, 0.0, 5.0, 0.01, 0.1, 2,
+ TRUE, 0, 0,
+ _("Y scale (size)"), NULL);
+ gtk_spin_button_configure (GIMP_SCALE_ENTRY_SPINBUTTON (adj),
+ GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.1, 2);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.scale.y);
+
+ adj = (GtkAdjustment *)
+ gimp_scale_entry_new (GTK_TABLE (table), 0, 2,
+ _("Z:"), 0, 0,
+ mapvals.scale.z, 0.0, 5.0, 0.01, 0.1, 2,
+ TRUE, 0, 0,
+ _("Z scale (size)"), NULL);
+ gtk_spin_button_configure (GIMP_SCALE_ENTRY_SPINBUTTON (adj),
+ GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.1, 2);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.scale.z);
+
+ gtk_widget_show (page);
+
+ return page;
+}
+
+static GtkWidget *
+create_cylinder_page (void)
+{
+ GtkSizeGroup *group = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);
+ GtkWidget *page;
+ GtkWidget *frame;
+ GtkWidget *table;
+ GtkAdjustment *adj;
+ gint i;
+
+ static const gchar *labels[] = { N_("_Top:"), N_("_Bottom:") };
+
+ page = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
+ gtk_container_set_border_width (GTK_CONTAINER (page), 12);
+
+ frame = gimp_frame_new (_("Images for the Cap Faces"));
+ gtk_box_pack_start (GTK_BOX (page), frame, FALSE, FALSE, 0);
+ gtk_widget_show (frame);
+
+ table = gtk_table_new (2, 2, FALSE);
+ gtk_table_set_row_spacings (GTK_TABLE (table), 6);
+ gtk_table_set_col_spacings (GTK_TABLE (table), 6);
+ gtk_container_add (GTK_CONTAINER (frame), table);
+ gtk_widget_show (table);
+
+ /* Option menus */
+
+ for (i = 0; i < 2; i++)
+ {
+ GtkWidget *combo;
+ GtkWidget *label;
+
+ combo = gimp_drawable_combo_box_new (cylinder_constrain, NULL);
+ gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo),
+ mapvals.cylindermap_id[i],
+ G_CALLBACK (gimp_int_combo_box_get_active),
+ &mapvals.cylindermap_id[i]);
+
+ label = gimp_table_attach_aligned (GTK_TABLE (table), 0, i,
+ gettext (labels[i]), 0.0, 0.5,
+ combo, 1, FALSE);
+ gtk_size_group_add_widget (group, label);
+ }
+
+ frame = gimp_frame_new (_("Size"));
+ gtk_box_pack_start (GTK_BOX (page), frame, FALSE, FALSE, 0);
+ gtk_widget_show (frame);
+
+ table = gtk_table_new (2, 3, FALSE);
+ gtk_table_set_row_spacings (GTK_TABLE (table), 6);
+ gtk_table_set_col_spacings (GTK_TABLE (table), 6);
+ gtk_container_add (GTK_CONTAINER (frame), table);
+ gtk_widget_show (table);
+
+ adj = (GtkAdjustment *)
+ gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
+ _("R_adius:"), 0, 0,
+ mapvals.cylinder_radius,
+ 0.0, 2.0, 0.01, 0.1, 2,
+ TRUE, 0, 0,
+ _("Cylinder radius"), NULL);
+ gtk_size_group_add_widget (group, GIMP_SCALE_ENTRY_LABEL (adj));
+ gtk_spin_button_configure (GIMP_SCALE_ENTRY_SPINBUTTON (adj),
+ GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.1, 2);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.cylinder_radius);
+
+ adj = (GtkAdjustment *)
+ gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
+ _("L_ength:"), 0, 0,
+ mapvals.cylinder_length,
+ 0.0, 2.0, 0.01, 0.1, 2,
+ TRUE, 0, 0,
+ _("Cylinder length"), NULL);
+ gtk_size_group_add_widget (group, GIMP_SCALE_ENTRY_LABEL (adj));
+ gtk_spin_button_configure (GIMP_SCALE_ENTRY_SPINBUTTON (adj),
+ GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.1, 2);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (double_adjustment_update),
+ &mapvals.cylinder_length);
+
+ gtk_widget_show (page);
+
+ g_object_unref (group);
+
+ return page;
+}
+
+/****************************/
+/* Create notbook and pages */
+/****************************/
+
+static void
+create_main_notebook (GtkWidget *container)
+{
+ GtkWidget *page;
+
+ options_note_book = GTK_NOTEBOOK (gtk_notebook_new ());
+ gtk_container_add (GTK_CONTAINER (container),
+ GTK_WIDGET (options_note_book));
+
+ page = create_options_page ();
+ gtk_notebook_append_page (options_note_book, page,
+ gtk_label_new_with_mnemonic (_("O_ptions")));
+
+ page = create_light_page ();
+ gtk_notebook_append_page (options_note_book, page,
+ gtk_label_new_with_mnemonic (_("_Light")));
+
+ page = create_material_page ();
+ gtk_notebook_append_page (options_note_book, page,
+ gtk_label_new_with_mnemonic (_("_Material")));
+
+ page = create_orientation_page ();
+ gtk_notebook_append_page (options_note_book, page,
+ gtk_label_new_with_mnemonic (_("O_rientation")));
+
+ if (mapvals.maptype == MAP_BOX)
+ {
+ box_page = create_box_page ();
+ g_object_ref (box_page);
+ gtk_notebook_append_page (options_note_book, box_page,
+ gtk_label_new_with_mnemonic (_("_Box")));
+ }
+ else if (mapvals.maptype == MAP_CYLINDER)
+ {
+ cylinder_page = create_cylinder_page ();
+ g_object_ref (cylinder_page);
+ gtk_notebook_append_page (options_note_book, cylinder_page,
+ gtk_label_new_with_mnemonic (_("C_ylinder")));
+ }
+
+ gtk_widget_show (GTK_WIDGET (options_note_book));
+}
+
+/********************************/
+/* Create and show main dialog. */
+/********************************/
+
+gboolean
+main_dialog (gint32 drawable_id)
+{
+ GtkWidget *main_hbox;
+ GtkWidget *vbox;
+ GtkWidget *hbox;
+ GtkWidget *frame;
+ GtkWidget *button;
+ GtkWidget *toggle;
+ GimpZoomModel *model;
+ gboolean run = FALSE;
+
+ gimp_ui_init (PLUG_IN_BINARY, FALSE);
+
+ appwin = gimp_dialog_new (_("Map to Object"), PLUG_IN_ROLE,
+ NULL, 0,
+ gimp_standard_help_func, PLUG_IN_PROC,
+
+ _("_Cancel"), GTK_RESPONSE_CANCEL,
+ _("_OK"), GTK_RESPONSE_OK,
+
+ NULL);
+
+ gtk_dialog_set_alternative_button_order (GTK_DIALOG (appwin),
+ GTK_RESPONSE_OK,
+ GTK_RESPONSE_CANCEL,
+ -1);
+
+ gimp_window_set_transient (GTK_WINDOW (appwin));
+
+ main_hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
+ gtk_container_set_border_width (GTK_CONTAINER (main_hbox), 12);
+ gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (appwin))),
+ main_hbox, FALSE, FALSE, 0);
+ gtk_widget_show (main_hbox);
+
+ /* Create the Preview */
+
+ vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
+ gtk_box_pack_start (GTK_BOX (main_hbox), vbox, FALSE, FALSE, 0);
+ gtk_widget_show (vbox);
+
+ /* Add preview widget and various buttons to the first part */
+
+ frame = gtk_frame_new (NULL);
+ gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
+ gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
+ gtk_widget_show (frame);
+
+ gtk_widget_realize (appwin);
+ previewarea = gtk_drawing_area_new ();
+ gtk_widget_set_size_request (previewarea, PREVIEW_WIDTH, PREVIEW_HEIGHT);
+ gtk_widget_set_events (previewarea, (GDK_EXPOSURE_MASK |
+ GDK_BUTTON1_MOTION_MASK |
+ GDK_BUTTON_PRESS_MASK |
+ GDK_BUTTON_RELEASE_MASK));
+ gtk_container_add (GTK_CONTAINER (frame), previewarea);
+ gtk_widget_show (previewarea);
+
+ g_signal_connect (previewarea, "event",
+ G_CALLBACK (preview_events),
+ previewarea);
+
+ g_signal_connect (previewarea, "expose-event",
+ G_CALLBACK (preview_expose),
+ previewarea);
+
+ hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
+ gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
+ gtk_widget_show (hbox);
+
+ button = gtk_button_new_with_mnemonic (_("_Preview!"));
+ gtk_misc_set_padding (GTK_MISC (gtk_bin_get_child (GTK_BIN (button))), 2, 0);
+ gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
+ gtk_widget_show (button);
+
+ g_signal_connect (button, "clicked",
+ G_CALLBACK (preview_callback),
+ NULL);
+
+ gimp_help_set_help_data (button, _("Recompute preview image"), NULL);
+
+ model = gimp_zoom_model_new ();
+ gimp_zoom_model_set_range (model, 0.25, 1.0);
+ gimp_zoom_model_zoom (model, GIMP_ZOOM_TO, mapvals.zoom);
+
+ button = gimp_zoom_button_new (model, GIMP_ZOOM_IN, GTK_ICON_SIZE_MENU);
+ gtk_box_pack_end (GTK_BOX (hbox), button, FALSE, FALSE, 0);
+ gtk_widget_show (button);
+
+ button = gimp_zoom_button_new (model, GIMP_ZOOM_OUT, GTK_ICON_SIZE_MENU);
+ gtk_box_pack_end (GTK_BOX (hbox), button, FALSE, FALSE, 0);
+ gtk_widget_show (button);
+
+ g_signal_connect (model, "zoomed",
+ G_CALLBACK (zoomed_callback),
+ NULL);
+
+ toggle = gtk_check_button_new_with_mnemonic (_("Show _wireframe"));
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), mapvals.showgrid);
+ gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
+ gtk_widget_show (toggle);
+
+ g_signal_connect (toggle, "toggled",
+ G_CALLBACK (toggle_update),
+ &mapvals.showgrid);
+
+ toggle = gtk_check_button_new_with_mnemonic (_("Update preview _live"));
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), mapvals.livepreview);
+ gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
+ gtk_widget_show (toggle);
+
+ g_signal_connect (toggle, "toggled",
+ G_CALLBACK (toggle_update),
+ &mapvals.livepreview);
+
+ create_main_notebook (main_hbox);
+
+ gtk_widget_show (appwin);
+
+ {
+ GdkCursor *cursor;
+
+ cursor = gdk_cursor_new_for_display (gtk_widget_get_display (previewarea),
+ GDK_HAND2);
+ gdk_window_set_cursor (gtk_widget_get_window (previewarea), cursor);
+ gdk_cursor_unref (cursor);
+ }
+
+ image_setup (drawable_id, TRUE);
+
+ compute_preview_image ();
+
+ if (gimp_dialog_run (GIMP_DIALOG (appwin)) == GTK_RESPONSE_OK)
+ run = TRUE;
+
+ gtk_widget_destroy (appwin);
+ if (preview_rgb_data)
+ g_free (preview_rgb_data);
+ if (preview_surface)
+ cairo_surface_destroy (preview_surface);
+ if (box_page)
+ g_object_unref (box_page);
+ if (cylinder_page)
+ g_object_unref (cylinder_page);
+
+ return run;
+}
diff --git a/plug-ins/map-object/map-object-ui.h b/plug-ins/map-object/map-object-ui.h
new file mode 100644
index 0000000..69f6065
--- /dev/null
+++ b/plug-ins/map-object/map-object-ui.h
@@ -0,0 +1,14 @@
+#ifndef __MAPOBJECT_UI_H__
+#define __MAPOBJECT_UI_H__
+
+/* Externally visible variables */
+/* ============================ */
+
+extern GtkWidget *previewarea;
+
+/* Externally visible functions */
+/* ============================ */
+
+gboolean main_dialog (gint32 drawable_id);
+
+#endif /* __MAPOBJECT_UI_H__ */