diff options
Diffstat (limited to 'plug-ins/script-fu/scripts/carve-it.scm')
| -rw-r--r-- | plug-ins/script-fu/scripts/carve-it.scm | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/plug-ins/script-fu/scripts/carve-it.scm b/plug-ins/script-fu/scripts/carve-it.scm new file mode 100644 index 0000000..a88fa08 --- /dev/null +++ b/plug-ins/script-fu/scripts/carve-it.scm @@ -0,0 +1,205 @@ +; CARVE-IT +; Carving, embossing, & stamping +; Process taken from "The Photoshop 3 WOW! Book" +; http://www.peachpit.com +; This script requires a grayscale image containing a single layer. +; This layer is used as the mask for the carving effect +; NOTE: This script requires the image to be carved to either be an +; RGB color or grayscale image with a single layer. An indexed file +; can not be used due to the use of gimp-drawable-histogram and +; gimp-drawable-levels. + + +(define (carve-scale val scale) + (* (sqrt val) scale)) + +(define (calculate-inset-gamma img layer) + (let* ((stats (gimp-drawable-histogram layer 0 0.0 1.0)) + (mean (car stats))) + (cond ((< mean 127) (+ 1.0 (* 0.5 (/ (- 127 mean) 127.0)))) + ((>= mean 127) (- 1.0 (* 0.5 (/ (- mean 127) 127.0))))))) + + +(define (copy-layer-carve-it dest-image dest-drawable source-image source-drawable) + (gimp-selection-all dest-image) + (gimp-drawable-edit-clear dest-drawable) + (gimp-selection-none dest-image) + (gimp-selection-all source-image) + (gimp-edit-copy source-drawable) + (let ((floating-sel (car (gimp-edit-paste dest-drawable FALSE)))) + (gimp-floating-sel-anchor floating-sel))) + + + +(define (script-fu-carve-it mask-img mask-drawable bg-layer carve-white) + (let* ( + (width (car (gimp-drawable-width mask-drawable))) + (height (car (gimp-drawable-height mask-drawable))) + (type (car (gimp-drawable-type bg-layer))) + (img (car (gimp-image-new width height (cond ((= type RGB-IMAGE) RGB) + ((= type RGBA-IMAGE) RGB) + ((= type GRAY-IMAGE) GRAY) + ((= type GRAYA-IMAGE) GRAY) + ((= type INDEXED-IMAGE) INDEXED) + ((= type INDEXEDA-IMAGE) INDEXED))))) + (size (min width height)) + (offx (carve-scale size 0.33)) + (offy (carve-scale size 0.25)) + (feather (carve-scale size 0.3)) + (brush-size (carve-scale size 0.3)) + (brush-name (car (gimp-brush-new "Carve It"))) + (mask-fs 0) + (mask (car (gimp-channel-new img width height "Engraving Mask" 50 '(0 0 0)))) + (inset-gamma (calculate-inset-gamma (car (gimp-item-get-image bg-layer)) bg-layer)) + (mask-fat 0) + (mask-emboss 0) + (mask-highlight 0) + (mask-shadow 0) + (shadow-layer 0) + (highlight-layer 0) + (cast-shadow-layer 0) + (csl-mask 0) + (inset-layer 0) + (il-mask 0) + (bg-width (car (gimp-drawable-width bg-layer))) + (bg-height (car (gimp-drawable-height bg-layer))) + (bg-type (car (gimp-drawable-type bg-layer))) + (bg-image (car (gimp-item-get-image bg-layer))) + (layer1 (car (gimp-layer-new img bg-width bg-height bg-type "Layer1" 100 LAYER-MODE-NORMAL))) + ) + + (gimp-context-push) + (gimp-context-set-defaults) + + (gimp-image-undo-disable img) + + (gimp-image-insert-layer img layer1 0 0) + + (gimp-selection-all img) + (gimp-drawable-edit-clear layer1) + (gimp-selection-none img) + (copy-layer-carve-it img layer1 bg-image bg-layer) + + (gimp-edit-copy mask-drawable) + (gimp-image-insert-channel img mask -1 0) + + (plug-in-tile RUN-NONINTERACTIVE img layer1 width height FALSE) + (set! mask-fs (car (gimp-edit-paste mask FALSE))) + (gimp-floating-sel-anchor mask-fs) + (if (= carve-white FALSE) + (gimp-drawable-invert mask FALSE)) + + (set! mask-fat (car (gimp-channel-copy mask))) + (gimp-image-insert-channel img mask-fat -1 0) + (gimp-image-select-item img CHANNEL-OP-REPLACE mask-fat) + + (gimp-brush-set-shape brush-name BRUSH-GENERATED-CIRCLE) + (gimp-brush-set-spikes brush-name 2) + (gimp-brush-set-hardness brush-name 1.0) + (gimp-brush-set-spacing brush-name 25) + (gimp-brush-set-aspect-ratio brush-name 1) + (gimp-brush-set-angle brush-name 0) + (cond (<= brush-size 17) (gimp-brush-set-radius brush-name (\ brush-size 2)) + (else gimp-brush-set-radius brush-name (\ 19 2))) + (gimp-context-set-brush brush-name) + + (gimp-context-set-foreground '(255 255 255)) + (gimp-drawable-edit-stroke-selection mask-fat) + (gimp-selection-none img) + + (set! mask-emboss (car (gimp-channel-copy mask-fat))) + (gimp-image-insert-channel img mask-emboss -1 0) + (plug-in-gauss-rle RUN-NONINTERACTIVE img mask-emboss feather TRUE TRUE) + (plug-in-emboss RUN-NONINTERACTIVE img mask-emboss 315.0 45.0 7 TRUE) + + (gimp-context-set-background '(180 180 180)) + (gimp-image-select-item img CHANNEL-OP-REPLACE mask-fat) + (gimp-selection-invert img) + (gimp-drawable-edit-fill mask-emboss FILL-BACKGROUND) + (gimp-image-select-item img CHANNEL-OP-REPLACE mask) + (gimp-drawable-edit-fill mask-emboss FILL-BACKGROUND) + (gimp-selection-none img) + + (set! mask-highlight (car (gimp-channel-copy mask-emboss))) + (gimp-image-insert-channel img mask-highlight -1 0) + (gimp-drawable-levels mask-highlight 0 + 0.7056 1.0 TRUE + 1.0 + 0.0 1.0 TRUE) + + (set! mask-shadow mask-emboss) + (gimp-drawable-levels mask-shadow 0 + 0.0 0.70586 TRUE + 1.0 + 0.0 1.0 TRUE) + + (gimp-edit-copy mask-shadow) + (set! shadow-layer (car (gimp-edit-paste layer1 FALSE))) + (gimp-floating-sel-to-layer shadow-layer) + (gimp-layer-set-mode shadow-layer LAYER-MODE-MULTIPLY) + + (gimp-edit-copy mask-highlight) + (set! highlight-layer (car (gimp-edit-paste shadow-layer FALSE))) + (gimp-floating-sel-to-layer highlight-layer) + (gimp-layer-set-mode highlight-layer LAYER-MODE-SCREEN) + + (gimp-edit-copy mask) + (set! cast-shadow-layer (car (gimp-edit-paste highlight-layer FALSE))) + (gimp-floating-sel-to-layer cast-shadow-layer) + (gimp-layer-set-mode cast-shadow-layer LAYER-MODE-MULTIPLY) + (gimp-layer-set-opacity cast-shadow-layer 75) + (plug-in-gauss-rle RUN-NONINTERACTIVE img cast-shadow-layer feather TRUE TRUE) + (gimp-item-transform-translate cast-shadow-layer offx offy) + + (set! csl-mask (car (gimp-layer-create-mask cast-shadow-layer ADD-MASK-BLACK))) + (gimp-layer-add-mask cast-shadow-layer csl-mask) + (gimp-image-select-item img CHANNEL-OP-REPLACE mask) + (gimp-context-set-background '(255 255 255)) + (gimp-drawable-edit-fill csl-mask FILL-BACKGROUND) + + (set! inset-layer (car (gimp-layer-copy layer1 TRUE))) + (gimp-image-insert-layer img inset-layer 0 1) + + (set! il-mask (car (gimp-layer-create-mask inset-layer ADD-MASK-BLACK))) + (gimp-layer-add-mask inset-layer il-mask) + (gimp-image-select-item img CHANNEL-OP-REPLACE mask) + (gimp-context-set-background '(255 255 255)) + (gimp-drawable-edit-fill il-mask FILL-BACKGROUND) + (gimp-selection-none img) + (gimp-selection-none bg-image) + (gimp-drawable-levels inset-layer 0 0.0 1.0 TRUE inset-gamma 0.0 1.0 TRUE) + (gimp-image-remove-channel img mask) + (gimp-image-remove-channel img mask-fat) + (gimp-image-remove-channel img mask-highlight) + (gimp-image-remove-channel img mask-shadow) + + (gimp-item-set-name layer1 _"Carved Surface") + (gimp-item-set-name shadow-layer _"Bevel Shadow") + (gimp-item-set-name highlight-layer _"Bevel Highlight") + (gimp-item-set-name cast-shadow-layer _"Cast Shadow") + (gimp-item-set-name inset-layer _"Inset") + + (gimp-brush-delete brush-name) + + (gimp-display-new img) + (gimp-image-undo-enable img) + + (gimp-context-pop) + ) +) + +(script-fu-register "script-fu-carve-it" + _"Stencil C_arve..." + _"Use the specified drawable as a stencil to carve from the specified image." + "Spencer Kimball" + "Spencer Kimball" + "1997" + "GRAY" + SF-IMAGE "Mask image" 0 + SF-DRAWABLE "Mask drawable" 0 + SF-DRAWABLE _"Image to carve" 0 + SF-TOGGLE _"Carve white areas" TRUE +) + +(script-fu-menu-register "script-fu-carve-it" + "<Image>/Filters/Decor") |