/usr/share/gimp/2.0/scripts/carve-it.scm is in gimp-data 2.8.16-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 | ; 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 colour or grayscale image with a single layer. An indexed file
; can not be used due to the use of gimp-histogram and gimp-levels.
(define (carve-brush brush-size)
(cond ((<= brush-size 5) "Circle (05)")
((<= brush-size 7) "Circle (07)")
((<= brush-size 9) "Circle (09)")
((<= brush-size 11) "Circle (11)")
((<= brush-size 13) "Circle (13)")
((<= brush-size 15) "Circle (15)")
((<= brush-size 17) "Circle (17)")
(else "Circle (19)")))
(define (carve-scale val scale)
(* (sqrt val) scale))
(define (calculate-inset-gamma img layer)
(let* ((stats (gimp-histogram layer 0 0 255))
(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-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))
(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 NORMAL-MODE)))
)
(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-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-invert mask))
(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-context-set-brush (carve-brush brush-size))
(gimp-context-set-foreground '(255 255 255))
(gimp-edit-stroke 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-edit-fill mask-emboss BACKGROUND-FILL)
(gimp-image-select-item img CHANNEL-OP-REPLACE mask)
(gimp-edit-fill mask-emboss BACKGROUND-FILL)
(gimp-selection-none img)
(set! mask-highlight (car (gimp-channel-copy mask-emboss)))
(gimp-image-insert-channel img mask-highlight -1 0)
(gimp-levels mask-highlight 0 180 255 1.0 0 255)
(set! mask-shadow mask-emboss)
(gimp-levels mask-shadow 0 0 180 1.0 0 255)
(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 MULTIPLY-MODE)
(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 SCREEN-MODE)
(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 MULTIPLY-MODE)
(gimp-layer-set-opacity cast-shadow-layer 75)
(plug-in-gauss-rle RUN-NONINTERACTIVE img cast-shadow-layer feather TRUE TRUE)
(gimp-layer-translate cast-shadow-layer offx offy)
(set! csl-mask (car (gimp-layer-create-mask cast-shadow-layer ADD-BLACK-MASK)))
(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-edit-fill csl-mask BACKGROUND-FILL)
(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-BLACK-MASK)))
(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-edit-fill il-mask BACKGROUND-FILL)
(gimp-selection-none img)
(gimp-selection-none bg-image)
(gimp-levels inset-layer 0 0 255 inset-gamma 0 255)
(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-display-new img)
(gimp-image-undo-enable img)
(gimp-context-pop)
)
)
(script-fu-register "script-fu-carve-it"
_"Stencil C_arve..."
"Use the specified [GRAY] drawable as a stencil to carve from the specified image. The specified image must be either RGB colour or grayscale, not indexed."
"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")
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