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| -rw-r--r-- | plug-ins/script-fu/scripts/burn-in-anim.scm | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/plug-ins/script-fu/scripts/burn-in-anim.scm b/plug-ins/script-fu/scripts/burn-in-anim.scm new file mode 100644 index 0000000..4842e8a --- /dev/null +++ b/plug-ins/script-fu/scripts/burn-in-anim.scm @@ -0,0 +1,243 @@ +; +; burn-in-anim.scm V2.1 - script-fu for GIMP 1.1 and higher +; +; Copyright (C) 9/2000 Roland Berger +; roland@fuchur.leute.server.de +; http://fuchur.leute.server.de +; +; Let text appear and fade out with a "burn-in" like SFX. +; Works on an image with a text and a background layer +; +; Copying Policy: GNU Public License http://www.gnu.org +; + +(define (script-fu-burn-in-anim org-img + org-layer + glow-color + fadeout + bl-width + corona-width + after-glow + show-glow + optimize + speed) + + (let* ( + ;--- main variable: "bl-x" runs from 0 to layer-width + (bl-x 0) + (frame-nr 0) + (img 0) + (source-layer 0) + (bg-source-layer 0) + (source-layer-width 0) + (bg-layer 0) + (bg-layer-name 0) + (bl-layer 0) + (bl-layer-name 0) + (bl-mask 0) + (bl-layer-width 0) + (bl-height 0) + (bl-x-off 0) + (bl-y-off 0) + (nofadeout-bl-x-off 0) + (nofadeout-bl-width 0) + (blended-layer 0) + (img-display 0) + ) + + (if (< speed 1) + (set! speed (* -1 speed)) ) + + ;--- check image and work on a copy + (if (and (= (car (gimp-image-get-layers org-img)) 2) + (= (car (gimp-image-get-floating-sel org-img)) -1)) + + ;--- main program structure starts here, begin of "if-1" + (begin + (gimp-context-push) + (gimp-context-set-defaults) + + (set! img (car (gimp-image-duplicate org-img))) + (gimp-image-undo-disable img) + (if (> (car (gimp-drawable-type org-layer)) 1 ) + (gimp-image-convert-rgb img)) + (set! source-layer (aref (cadr (gimp-image-get-layers img)) 0 )) + (set! bg-source-layer (aref (cadr (gimp-image-get-layers img)) 1 )) + (set! source-layer-width (car (gimp-drawable-width source-layer))) + + ;--- hide layers, cause we want to "merge visible layers" later + (gimp-item-set-visible source-layer FALSE) + (gimp-item-set-visible bg-source-layer FALSE) + + ;--- process image horizontal with pixel-speed + (while (< bl-x (+ source-layer-width bl-width)) + (set! bl-layer (car (gimp-layer-copy source-layer TRUE))) + (set! bl-layer-name (string-append "fr-nr" + (number->string frame-nr 10) ) ) + + (gimp-image-insert-layer img bl-layer 0 -2) + (gimp-item-set-name bl-layer bl-layer-name) + (gimp-item-set-visible bl-layer TRUE) + (gimp-layer-set-lock-alpha bl-layer TRUE) + (gimp-layer-add-alpha bl-layer) + + ;--- add an alpha mask for blending and select it + (gimp-image-select-item img CHANNEL-OP-REPLACE bl-layer) + (set! bl-mask (car (gimp-layer-create-mask bl-layer ADD-MASK-BLACK))) + (gimp-layer-add-mask bl-layer bl-mask) + + ;--- handle layer geometry + (set! bl-layer-width source-layer-width) + (set! bl-height (car (gimp-drawable-height bl-layer))) + (set! bl-x-off (- bl-x bl-width)) + (set! bl-x-off (+ bl-x-off (car (gimp-drawable-offsets bl-layer)))) + (set! bl-y-off (cadr (gimp-drawable-offsets bl-layer))) + + ;--- select a rectangular area to blend + (gimp-image-select-rectangle img CHANNEL-OP-REPLACE bl-x-off bl-y-off bl-width bl-height) + ;--- select at least 1 pixel! + (gimp-image-select-rectangle img CHANNEL-OP-ADD bl-x-off bl-y-off (+ bl-width 1) bl-height) + + (if (= fadeout FALSE) + (begin + (set! nofadeout-bl-x-off (car (gimp-drawable-offsets bl-layer))) + (set! nofadeout-bl-width (+ nofadeout-bl-x-off bl-x)) + (set! nofadeout-bl-width (max nofadeout-bl-width 1)) + (gimp-image-select-rectangle img CHANNEL-OP-REPLACE + nofadeout-bl-x-off bl-y-off + nofadeout-bl-width bl-height) + ) + ) + + ;--- alpha blending text to trans (fadeout) + (gimp-context-set-foreground '(255 255 255)) + (gimp-context-set-background '( 0 0 0)) + (if (= fadeout TRUE) + (begin + ; blend with 20% offset to get less transparency in the front + (gimp-context-set-gradient-fg-bg-rgb) + (gimp-drawable-edit-gradient-fill bl-mask + GRADIENT-LINEAR 20 + FALSE 0 0 + TRUE + (+ bl-x-off bl-width) 0 + bl-x-off 0) + ) + ) + + (if (= fadeout FALSE) + (begin + (gimp-context-set-foreground '(255 255 255)) + (gimp-drawable-edit-fill bl-mask FILL-FOREGROUND) + ) + ) + + (gimp-layer-remove-mask bl-layer MASK-APPLY) + + ;--- add bright glow in front + (if (= show-glow TRUE) + (begin + ;--- add some brightness to whole text + (if (= fadeout TRUE) + (gimp-drawable-brightness-contrast bl-layer 0.787 0) + ) + + ;--- blend glow color inside the letters + (gimp-context-set-foreground glow-color) + (gimp-context-set-gradient-fg-transparent) + (gimp-drawable-edit-gradient-fill bl-layer + GRADIENT-LINEAR 0 + FALSE 0 0 + TRUE + (+ bl-x-off bl-width) 0 + (- (+ bl-x-off bl-width) after-glow) 0) + + ;--- add corona effect + (gimp-image-select-item img CHANNEL-OP-REPLACE bl-layer) + (gimp-selection-sharpen img) + (gimp-selection-grow img corona-width) + (gimp-layer-set-lock-alpha bl-layer FALSE) + (gimp-selection-feather img corona-width) + (gimp-context-set-foreground glow-color) + (gimp-drawable-edit-gradient-fill bl-layer + GRADIENT-LINEAR 0 + FALSE 0 0 + TRUE + (- (+ bl-x-off bl-width) corona-width) 0 + (- (+ bl-x-off bl-width) after-glow) 0) + ) + ) + + ;--- merge with bg layer + (set! bg-layer (car (gimp-layer-copy bg-source-layer FALSE))) + (gimp-image-insert-layer img bg-layer 0 -1) + (gimp-image-lower-item img bg-layer) + (set! bg-layer-name (string-append "bg-" + (number->string frame-nr 10))) + (gimp-item-set-name bg-layer bg-layer-name) + (gimp-item-set-visible bg-layer TRUE) + (set! blended-layer (car (gimp-image-merge-visible-layers img + CLIP-TO-IMAGE))) + ;(set! blended-layer bl-layer) + (gimp-item-set-visible blended-layer FALSE) + + ;--- end of "while" loop + (set! frame-nr (+ frame-nr 1)) + (set! bl-x (+ bl-x speed)) + ) + + ;--- finalize the job + (gimp-selection-none img) + (gimp-image-remove-layer img source-layer) + (gimp-image-remove-layer img bg-source-layer) + + (gimp-image-set-filename img "burn-in") + + (if (= optimize TRUE) + (begin + (gimp-image-convert-indexed img CONVERT-DITHER-FS CONVERT-PALETTE-WEB 250 FALSE TRUE "") + (set! img (car (plug-in-animationoptimize RUN-NONINTERACTIVE + img + blended-layer))) + ) + ) + + (gimp-item-set-visible (aref (cadr (gimp-image-get-layers img)) 0) + TRUE) + (gimp-image-undo-enable img) + (gimp-image-clean-all img) + (set! img-display (car (gimp-display-new img))) + + (gimp-displays-flush) + + (gimp-context-pop) + ) + + ;--- false form of "if-1" + (gimp-message _"The Burn-In script needs two layers in total. A foreground layer with transparency and a background layer.") + ) + ) +) + + +(script-fu-register "script-fu-burn-in-anim" + _"B_urn-In..." + _"Create intermediate layers to produce an animated 'burn-in' transition between two layers" + "Roland Berger roland@fuchur.leute.server.de" + "Roland Berger" + "January 2001" + "RGBA GRAYA INDEXEDA" + SF-IMAGE "The image" 0 + SF-DRAWABLE "Layer to animate" 0 + SF-COLOR _"Glow color" "white" + SF-TOGGLE _"Fadeout" FALSE + SF-VALUE _"Fadeout width" "100" + SF-VALUE _"Corona width" "7" + SF-VALUE _"After glow" "50" + SF-TOGGLE _"Add glowing" TRUE + SF-TOGGLE _"Prepare for GIF" FALSE + SF-VALUE _"Speed (pixels/frame)" "50" +) + +(script-fu-menu-register "script-fu-burn-in-anim" + "<Image>/Filters/Animation/Animators") |