202 lines
7.3 KiB
Scheme
202 lines
7.3 KiB
Scheme
; CRYSTAL
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; Create a text effect that simulates crystal
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(define (set-pt a index x y)
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(prog1
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(aset a (* index 2) x)
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(aset a (+ (* index 2) 1) y)))
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(define (spline1)
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(let* ((a (cons-array 18 'byte)))
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(set-pt a 0 0 0)
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(set-pt a 1 31 235)
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(set-pt a 2 63 23)
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(set-pt a 3 95 230)
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(set-pt a 4 127 25)
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(set-pt a 5 159 210)
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(set-pt a 6 191 20)
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(set-pt a 7 223 240)
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(set-pt a 8 255 31)
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a))
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(define (crystal-brush brush-size)
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(cond ((<= brush-size 5) "Circle (05)")
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((<= brush-size 7) "Circle (07)")
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((<= brush-size 9) "Circle (09)")
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((<= brush-size 11) "Circle (11)")
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((<= brush-size 13) "Circle (13)")
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((<= brush-size 15) "Circle (15)")
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((<= brush-size 17) "Circle (17)")
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((> brush-size 17) "Circle Fuzzy (19)")))
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(define (shadows val)
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(/ (* 0.96 val) 2.55))
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(define (midtones val)
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(/ val 2.55))
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(define (highlights val)
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(/ (* 1.108 val) 2.55))
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(define (rval col)
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(car col))
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(define (gval col)
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(cadr col))
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(define (bval col)
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(caddr col))
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(define (sota-scale val scale chrome-factor)
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(* (sqrt val) (* scale chrome-factor)))
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(define (copy-layer-crystal dest-image dest-drawable source-image source-drawable)
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(gimp-selection-all dest-image)
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(gimp-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-crystal-logo chrome-factor text size font bg-img env-map)
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(let* ((img (car (gimp-image-new 256 256 GRAY)))
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(back-img (car (gimp-file-load 1 bg-img bg-img)))
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(back-layer (car (gimp-image-active-drawable back-img)))
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(banding-img (car (gimp-file-load 1 env-map env-map)))
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(banding-layer (car (gimp-image-active-drawable banding-img)))
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(banding-height (car (gimp-drawable-height banding-layer)))
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(banding-width (car (gimp-drawable-width banding-layer)))
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(banding-type (car (gimp-drawable-type banding-layer)))
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(b-size (sota-scale size 2 chrome-factor))
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(offx1 (sota-scale size 0.33 chrome-factor))
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(offy1 (sota-scale size 0.25 chrome-factor))
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(offx2 (sota-scale size (- 0.33) chrome-factor))
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(offy2 (sota-scale size (- 0.25) chrome-factor))
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(feather (sota-scale size 0.5 chrome-factor))
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(blur (sota-scale size 0.5 chrome-factor))
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(displace (sota-scale size 0.25 chrome-factor))
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(brush-size (sota-scale size 0.5 chrome-factor))
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(text-layer (car (gimp-text-fontname img -1 0 0 text b-size TRUE size PIXELS font)))
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(width (car (gimp-drawable-width text-layer)))
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(height (car (gimp-drawable-height text-layer)))
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(tile-ret (plug-in-tile 1 back-img back-layer width height TRUE))
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(tile-img (car tile-ret))
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(tile-layer (cadr tile-ret))
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(tile-width (car (gimp-drawable-width tile-layer)))
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(tile-height (car (gimp-drawable-height tile-layer)))
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(tile-type (car (gimp-drawable-type tile-layer)))
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(bg-layer (car (gimp-layer-new img tile-width tile-height tile-type "BG-Layer" 100 NORMAL)))
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(layer1 (car (gimp-layer-new img banding-width banding-height banding-type "Layer1" 100 NORMAL)))
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(layer2 (car (gimp-layer-new img width height GRAYA_IMAGE "Layer 2" 100 DIFFERENCE)))
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(layer3 (car (gimp-layer-new img width height GRAYA_IMAGE "Layer 3" 100 NORMAL)))
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(layer-mask 0)
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(layer-mask2 0)
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(disp-map 0)
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(old-fg (car (gimp-palette-get-foreground)))
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(old-bg (car (gimp-palette-get-background)))
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(old-brush (car (gimp-brushes-get-brush))))
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(gimp-image-delete back-img)
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(gimp-image-undo-disable img)
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(gimp-image-resize img width height 0 0)
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(gimp-image-add-layer img layer3 0)
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(gimp-image-add-layer img layer2 0)
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(gimp-palette-set-background '(255 255 255))
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(gimp-selection-none img)
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(gimp-edit-fill layer2 BG-IMAGE-FILL)
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(gimp-edit-fill layer3 BG-IMAGE-FILL)
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(gimp-layer-set-visible text-layer FALSE)
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(gimp-selection-layer-alpha text-layer)
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(gimp-palette-set-background '(0 0 0))
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(gimp-selection-translate img offx1 offy1)
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(gimp-selection-feather img feather)
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(gimp-edit-fill layer2 BG-IMAGE-FILL)
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(gimp-selection-translate img (* 2 offx2) (* 2 offy2))
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(gimp-edit-fill layer3 BG-IMAGE-FILL)
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(gimp-selection-none img)
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(set! layer2 (car (gimp-image-merge-visible-layers img CLIP-TO-IMAGE)))
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(gimp-invert layer2)
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(copy-layer-crystal img layer1 banding-img banding-layer)
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(gimp-image-delete banding-img)
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(gimp-image-add-layer img layer1 0)
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(gimp-layer-scale layer1 width height FALSE)
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(plug-in-gauss-iir 1 img layer1 10 TRUE TRUE)
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(gimp-layer-set-opacity layer1 50)
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(set! layer1 (car (gimp-image-merge-visible-layers img CLIP-TO-IMAGE)))
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(gimp-curves-spline layer1 0 18 (spline1))
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(set! layer-mask (car (gimp-layer-create-mask layer1 BLACK-MASK)))
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(gimp-image-add-layer-mask img layer1 layer-mask)
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(gimp-selection-layer-alpha text-layer)
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(gimp-palette-set-background '(255 255 255))
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(gimp-edit-fill layer-mask BG-IMAGE-FILL)
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(set! disp-map (car (gimp-selection-save img)))
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(gimp-brushes-set-brush (crystal-brush brush-size))
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(gimp-palette-set-foreground '(0 0 0))
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(gimp-edit-stroke disp-map)
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(gimp-selection-none img)
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(plug-in-gauss-rle 1 img disp-map blur TRUE TRUE)
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(gimp-levels disp-map 0 0 255 1.0 96 255)
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(if (= (car (gimp-drawable-is-rgb bg-layer)) 1)
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(gimp-convert-rgb img))
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(copy-layer-crystal img bg-layer tile-img tile-layer)
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(gimp-image-delete tile-img)
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(gimp-image-add-layer img bg-layer 2)
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(set! layer2 (car (gimp-layer-copy bg-layer TRUE)))
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(gimp-image-add-layer img layer2 1)
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(plug-in-displace 1 img layer2 displace displace TRUE TRUE disp-map disp-map 0)
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(set! layer-mask2 (car (gimp-layer-create-mask layer2 BLACK-MASK)))
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(gimp-image-add-layer-mask img layer2 layer-mask2)
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(gimp-selection-layer-alpha text-layer)
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(gimp-palette-set-background '(255 255 255))
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(gimp-edit-fill layer-mask2 BG-IMAGE-FILL)
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(gimp-selection-none img)
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(gimp-levels layer2 0 0 200 1.5 50 255)
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(gimp-layer-set-mode layer1 OVERLAY)
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(plug-in-gauss-rle 1 img text-layer blur TRUE TRUE)
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(gimp-layer-set-preserve-trans text-layer TRUE)
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(gimp-palette-set-background '(0 0 0))
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(gimp-edit-fill text-layer BG-IMAGE-FILL)
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(gimp-layer-set-mode text-layer OVERLAY)
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(gimp-layer-translate text-layer offx1 offy1)
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(gimp-image-remove-channel img disp-map)
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(gimp-layer-set-visible text-layer TRUE)
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(gimp-layer-set-name layer1 "Crystal")
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(gimp-layer-set-name layer2 "Interior")
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(gimp-layer-set-name bg-layer "Background")
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(gimp-layer-set-name text-layer "Shadow")
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(gimp-palette-set-foreground old-fg)
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(gimp-palette-set-background old-bg)
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(gimp-brushes-set-brush old-brush)
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(gimp-image-undo-enable img)
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(gimp-display-new img)))
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(script-fu-register "script-fu-crystal-logo"
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_"<Toolbox>/Xtns/Script-Fu/Logos/Crystal..."
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"Crystal/Gel effect which displaces the image underneath"
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"Spencer Kimball"
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"Spencer Kimball"
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"1997"
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""
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SF-ADJUSTMENT _"Chrome Factor" '(1.0 0.2 4 0.1 1 1 0)
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SF-STRING _"Text" "Crystal"
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SF-ADJUSTMENT _"Font Size (pixels)" '(150 2 1000 1 10 0 1)
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SF-FONT _"Font" "-*-Engraver-*-r-*-*-24-*-*-*-p-*-*-*"
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SF-FILENAME _"Background Image" (string-append "" gimp-data-dir "/scripts/texture1.jpg")
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SF-FILENAME _"Environment Map" (string-append "" gimp-data-dir "/scripts/beavis.jpg"))
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