4bdb8792b5
carve-it.scm, chrome-it.scm: apply slightly modified patch from Carol
Spears which replaces hardcoding round brush names by creating a brush
on the fly and setting its radius.
Also fixed both scripts to not use deprecated color API which is
even completely gone from master.
(cherry picked from commit 3d049f565a)
206 lines
7.8 KiB
Scheme
206 lines
7.8 KiB
Scheme
; CARVE-IT
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; Carving, embossing, & stamping
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; Process taken from "The Photoshop 3 WOW! Book"
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; http://www.peachpit.com
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; This script requires a grayscale image containing a single layer.
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; This layer is used as the mask for the carving effect
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; NOTE: This script requires the image to be carved to either be an
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; RGB color or grayscale image with a single layer. An indexed file
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; can not be used due to the use of gimp-drawable-histogram and
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; gimp-drawable-levels.
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(define (carve-scale val scale)
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(* (sqrt val) scale))
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(define (calculate-inset-gamma img layer)
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(let* ((stats (gimp-drawable-histogram layer 0 0.0 1.0))
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(mean (car stats)))
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(cond ((< mean 127) (+ 1.0 (* 0.5 (/ (- 127 mean) 127.0))))
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((>= mean 127) (- 1.0 (* 0.5 (/ (- mean 127) 127.0)))))))
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(define (copy-layer-carve-it dest-image dest-drawable source-image source-drawable)
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(gimp-selection-all dest-image)
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(gimp-drawable-edit-clear dest-drawable)
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(gimp-selection-none dest-image)
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(gimp-selection-all source-image)
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(gimp-edit-copy source-drawable)
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(let ((floating-sel (car (gimp-edit-paste dest-drawable FALSE))))
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(gimp-floating-sel-anchor floating-sel)))
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(define (script-fu-carve-it mask-img mask-drawable bg-layer carve-white)
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(let* (
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(width (car (gimp-drawable-width mask-drawable)))
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(height (car (gimp-drawable-height mask-drawable)))
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(type (car (gimp-drawable-type bg-layer)))
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(img (car (gimp-image-new width height (cond ((= type RGB-IMAGE) RGB)
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((= type RGBA-IMAGE) RGB)
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((= type GRAY-IMAGE) GRAY)
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((= type GRAYA-IMAGE) GRAY)
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((= type INDEXED-IMAGE) INDEXED)
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((= type INDEXEDA-IMAGE) INDEXED)))))
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(size (min width height))
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(offx (carve-scale size 0.33))
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(offy (carve-scale size 0.25))
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(feather (carve-scale size 0.3))
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(brush-size (carve-scale size 0.3))
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(brush-name (car (gimp-brush-new "Carve It")))
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(mask-fs 0)
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(mask (car (gimp-channel-new img width height "Engraving Mask" 50 '(0 0 0))))
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(inset-gamma (calculate-inset-gamma (car (gimp-item-get-image bg-layer)) bg-layer))
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(mask-fat 0)
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(mask-emboss 0)
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(mask-highlight 0)
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(mask-shadow 0)
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(shadow-layer 0)
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(highlight-layer 0)
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(cast-shadow-layer 0)
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(csl-mask 0)
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(inset-layer 0)
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(il-mask 0)
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(bg-width (car (gimp-drawable-width bg-layer)))
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(bg-height (car (gimp-drawable-height bg-layer)))
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(bg-type (car (gimp-drawable-type bg-layer)))
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(bg-image (car (gimp-item-get-image bg-layer)))
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(layer1 (car (gimp-layer-new img bg-width bg-height bg-type "Layer1" 100 LAYER-MODE-NORMAL)))
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)
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(gimp-context-push)
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(gimp-context-set-defaults)
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(gimp-image-undo-disable img)
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(gimp-image-insert-layer img layer1 0 0)
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(gimp-selection-all img)
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(gimp-drawable-edit-clear layer1)
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(gimp-selection-none img)
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(copy-layer-carve-it img layer1 bg-image bg-layer)
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(gimp-edit-copy mask-drawable)
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(gimp-image-insert-channel img mask -1 0)
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(plug-in-tile RUN-NONINTERACTIVE img layer1 width height FALSE)
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(set! mask-fs (car (gimp-edit-paste mask FALSE)))
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(gimp-floating-sel-anchor mask-fs)
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(if (= carve-white FALSE)
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(gimp-drawable-invert mask FALSE))
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(set! mask-fat (car (gimp-channel-copy mask)))
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(gimp-image-insert-channel img mask-fat -1 0)
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(gimp-image-select-item img CHANNEL-OP-REPLACE mask-fat)
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(gimp-brush-set-shape brush-name BRUSH-GENERATED-CIRCLE)
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(gimp-brush-set-spikes brush-name 2)
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(gimp-brush-set-hardness brush-name 1.0)
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(gimp-brush-set-spacing brush-name 25)
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(gimp-brush-set-aspect-ratio brush-name 1)
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(gimp-brush-set-angle brush-name 0)
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(cond (<= brush-size 17) (gimp-brush-set-radius brush-name (\ brush-size 2))
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(else gimp-brush-set-radius brush-name (\ 19 2)))
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(gimp-context-set-brush brush-name)
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(gimp-context-set-foreground '(255 255 255))
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(gimp-drawable-edit-stroke-selection mask-fat)
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(gimp-selection-none img)
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(set! mask-emboss (car (gimp-channel-copy mask-fat)))
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(gimp-image-insert-channel img mask-emboss -1 0)
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(plug-in-gauss-rle RUN-NONINTERACTIVE img mask-emboss feather TRUE TRUE)
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(plug-in-emboss RUN-NONINTERACTIVE img mask-emboss 315.0 45.0 7 TRUE)
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(gimp-context-set-background '(180 180 180))
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(gimp-image-select-item img CHANNEL-OP-REPLACE mask-fat)
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(gimp-selection-invert img)
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(gimp-drawable-edit-fill mask-emboss FILL-BACKGROUND)
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(gimp-image-select-item img CHANNEL-OP-REPLACE mask)
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(gimp-drawable-edit-fill mask-emboss FILL-BACKGROUND)
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(gimp-selection-none img)
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(set! mask-highlight (car (gimp-channel-copy mask-emboss)))
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(gimp-image-insert-channel img mask-highlight -1 0)
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(gimp-drawable-levels mask-highlight 0
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0.7056 1.0 TRUE
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1.0
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0.0 1.0 TRUE)
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(set! mask-shadow mask-emboss)
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(gimp-drawable-levels mask-shadow 0
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0.0 0.70586 TRUE
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1.0
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0.0 1.0 TRUE)
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(gimp-edit-copy mask-shadow)
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(set! shadow-layer (car (gimp-edit-paste layer1 FALSE)))
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(gimp-floating-sel-to-layer shadow-layer)
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(gimp-layer-set-mode shadow-layer LAYER-MODE-MULTIPLY)
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(gimp-edit-copy mask-highlight)
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(set! highlight-layer (car (gimp-edit-paste shadow-layer FALSE)))
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(gimp-floating-sel-to-layer highlight-layer)
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(gimp-layer-set-mode highlight-layer LAYER-MODE-SCREEN)
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(gimp-edit-copy mask)
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(set! cast-shadow-layer (car (gimp-edit-paste highlight-layer FALSE)))
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(gimp-floating-sel-to-layer cast-shadow-layer)
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(gimp-layer-set-mode cast-shadow-layer LAYER-MODE-MULTIPLY)
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(gimp-layer-set-opacity cast-shadow-layer 75)
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(plug-in-gauss-rle RUN-NONINTERACTIVE img cast-shadow-layer feather TRUE TRUE)
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(gimp-item-transform-translate cast-shadow-layer offx offy)
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(set! csl-mask (car (gimp-layer-create-mask cast-shadow-layer ADD-MASK-BLACK)))
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(gimp-layer-add-mask cast-shadow-layer csl-mask)
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(gimp-image-select-item img CHANNEL-OP-REPLACE mask)
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(gimp-context-set-background '(255 255 255))
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(gimp-drawable-edit-fill csl-mask FILL-BACKGROUND)
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(set! inset-layer (car (gimp-layer-copy layer1 TRUE)))
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(gimp-image-insert-layer img inset-layer 0 1)
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(set! il-mask (car (gimp-layer-create-mask inset-layer ADD-MASK-BLACK)))
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(gimp-layer-add-mask inset-layer il-mask)
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(gimp-image-select-item img CHANNEL-OP-REPLACE mask)
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(gimp-context-set-background '(255 255 255))
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(gimp-drawable-edit-fill il-mask FILL-BACKGROUND)
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(gimp-selection-none img)
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(gimp-selection-none bg-image)
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(gimp-drawable-levels inset-layer 0 0.0 1.0 TRUE inset-gamma 0.0 1.0 TRUE)
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(gimp-image-remove-channel img mask)
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(gimp-image-remove-channel img mask-fat)
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(gimp-image-remove-channel img mask-highlight)
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(gimp-image-remove-channel img mask-shadow)
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(gimp-item-set-name layer1 _"Carved Surface")
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(gimp-item-set-name shadow-layer _"Bevel Shadow")
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(gimp-item-set-name highlight-layer _"Bevel Highlight")
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(gimp-item-set-name cast-shadow-layer _"Cast Shadow")
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(gimp-item-set-name inset-layer _"Inset")
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(gimp-brush-delete brush-name)
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(gimp-display-new img)
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(gimp-image-undo-enable img)
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(gimp-context-pop)
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)
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)
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(script-fu-register "script-fu-carve-it"
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_"Stencil C_arve..."
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_"Use the specified drawable as a stencil to carve from the specified image."
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"Spencer Kimball"
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"Spencer Kimball"
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"1997"
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"GRAY"
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SF-IMAGE "Mask image" 0
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SF-DRAWABLE "Mask drawable" 0
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SF-DRAWABLE _"Image to carve" 0
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SF-TOGGLE _"Carve white areas" TRUE
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)
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(script-fu-menu-register "script-fu-carve-it"
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"<Image>/Filters/Decor")
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