/usr/share/gimp/2.0/scripts/blend-anim.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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 | ; GIMP - The GNU Image Manipulation Program
; Copyright (C) 1995 Spencer Kimball and Peter Mattis
;
; This program is free software: you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation; either version 3 of the License, or
; (at your option) any later version.
;
; This program is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
; GNU General Public License for more details.
;
; You should have received a copy of the GNU General Public License
; along with this program. If not, see <http://www.gnu.org/licenses/>.
;
;
; blend-anim.scm version 1.03 1999/12/21
;
; CHANGE-LOG:
; 1.00 - initial release
; 1.01 - some code cleanup, no real changes
; 1.02 - use gimp-message to output an error message if called
; with less than three layers
; 1.03 - only call blur plugin when blut-radius >= 1.0
;
; Copyright (C) 1997-1999 Sven Neumann <sven@gimp.org>
;
;
; Blends two or more layers over a backgound, so that an animation can
; be saved. A minimum of three layers is required.
(define (script-fu-blend-anim img
drawable
frames
max-blur
looped)
(define (multi-raise-layer image layer times)
(while (> times 0)
(gimp-image-raise-item image layer)
(set! times (- times 1))
)
)
(let* (
(max-blur (max max-blur 0))
(frames (max frames 0))
(image (car (gimp-image-duplicate img)))
(width (car (gimp-image-width image)))
(height (car (gimp-image-height image)))
(layers (gimp-image-get-layers image))
(num-layers (car layers))
(layer-array (cadr layers))
(slots (- num-layers 2))
(bg-layer (aref layer-array (- num-layers 1)))
(max-width 0)
(max-height 0)
(offset-x 0)
(offset-y 0)
)
(if (> num-layers 2)
(begin
(gimp-image-undo-disable image)
(if (= looped TRUE)
; add a copy of the lowest blend layer on top
(let* ((copy (car (gimp-layer-copy
(aref layer-array (- num-layers 2)) TRUE))))
(gimp-image-insert-layer image copy 0 0)
(set! layers (gimp-image-get-layers image))
(set! num-layers (car layers))
(set! layer-array (cadr layers))
(set! slots (- num-layers 2))
(set! bg-layer (aref layer-array (- num-layers 1)))))
; make all layers invisible and check for sizes
(let* ((min-offset-x width)
(min-offset-y height)
(layer-count slots))
(gimp-item-set-visible bg-layer FALSE)
(while (> layer-count -1)
(let* ((layer (aref layer-array layer-count))
(layer-width (+ (car (gimp-drawable-width layer))
(* max-blur 2)))
(layer-height (+ (car (gimp-drawable-height layer))
(* max-blur 2)))
(layer-offsets (gimp-drawable-offsets layer))
(layer-offset-x (- (car layer-offsets) max-blur))
(layer-offset-y (- (cadr layer-offsets) max-blur)))
(gimp-item-set-visible layer FALSE)
(set! max-width (max max-width layer-width))
(set! max-height (max max-height layer-height))
(set! min-offset-x (min min-offset-x layer-offset-x))
(set! min-offset-y (min min-offset-y layer-offset-y))
(set! layer-count (- layer-count 1))))
(set! offset-x (- (car (gimp-drawable-offsets bg-layer))
min-offset-x))
(set! offset-y (- (cadr (gimp-drawable-offsets bg-layer))
min-offset-y)))
; create intermediate frames by merging copies of adjascent layers
; with the background layer
(let* ((layer-count slots))
(while (> layer-count 0)
(let* ((frame-count frames)
(lower-layer (aref layer-array layer-count))
(upper-layer (aref layer-array (- layer-count 1))))
(while (> frame-count 0)
(let* ((opacity (* (/ frame-count (+ frames 1)) 100))
(blur (/ (* opacity max-blur) 100))
(upper-copy (car (gimp-layer-copy upper-layer TRUE)))
(lower-copy (car (gimp-layer-copy lower-layer TRUE)))
(bg-copy (car (gimp-layer-copy bg-layer TRUE))))
(gimp-image-insert-layer image bg-copy 0 0)
(gimp-image-insert-layer image lower-copy 0 0)
(gimp-image-insert-layer image upper-copy 0 0)
(gimp-item-set-visible upper-copy TRUE)
(gimp-item-set-visible lower-copy TRUE)
(gimp-item-set-visible bg-copy TRUE)
(gimp-layer-set-opacity upper-copy (- 100 opacity))
(gimp-layer-set-opacity lower-copy opacity)
(gimp-layer-set-opacity bg-copy 100)
(if (> max-blur 0)
(let* ((layer-width (car (gimp-drawable-width upper-copy)))
(layer-height (car (gimp-drawable-height upper-copy))))
(gimp-layer-set-lock-alpha upper-copy FALSE)
(gimp-layer-resize upper-copy
(+ layer-width (* blur 2))
(+ layer-height (* blur 2))
blur
blur)
(if (>= blur 1.0)
(plug-in-gauss-rle RUN-NONINTERACTIVE
image
upper-copy
blur
TRUE TRUE))
(set! blur (- max-blur blur))
(gimp-layer-set-lock-alpha lower-copy FALSE)
(set! layer-width (car (gimp-drawable-width
lower-copy)))
(set! layer-height (car (gimp-drawable-height
lower-copy)))
(gimp-layer-resize lower-copy
(+ layer-width (* blur 2))
(+ layer-height (* blur 2))
blur
blur)
(if (>= blur 1.0)
(plug-in-gauss-rle RUN-NONINTERACTIVE
image
lower-copy
blur
TRUE TRUE))))
(gimp-layer-resize bg-copy
max-width
max-height
offset-x
offset-y)
(let* ((merged-layer (car (gimp-image-merge-visible-layers
image CLIP-TO-IMAGE))))
(gimp-item-set-visible merged-layer FALSE))
(set! frame-count (- frame-count 1))))
(set! layer-count (- layer-count 1)))))
; merge all original blend layers but the lowest one
; with copies of the background layer
(let* ((layer-count 0))
(while (< layer-count slots)
(let* ((orig-layer (aref layer-array layer-count))
(bg-copy (car (gimp-layer-copy bg-layer TRUE))))
(gimp-image-insert-layer image
bg-copy
-1
(* layer-count (+ frames 1)))
(multi-raise-layer image
orig-layer
(+ (* (- slots layer-count) frames) 1))
(gimp-item-set-visible orig-layer TRUE)
(gimp-item-set-visible bg-copy TRUE)
(gimp-layer-resize bg-copy
max-width
max-height
offset-x
offset-y)
(let* ((merged-layer (car (gimp-image-merge-visible-layers
image CLIP-TO-IMAGE))))
(gimp-item-set-visible merged-layer FALSE))
(set! layer-count (+ layer-count 1)))))
; merge the lowest blend layer with the background layer
(let* ((orig-layer (aref layer-array (- num-layers 2))))
(gimp-item-set-visible bg-layer TRUE)
(gimp-item-set-visible orig-layer TRUE)
(gimp-image-merge-visible-layers image CLIP-TO-IMAGE))
; make all layers visible again
(let* ((result-layers (gimp-image-get-layers image))
(num-result-layers (car result-layers))
(result-layer-array (cadr result-layers))
(layer-count (- num-result-layers 1)))
(while (> layer-count -1)
(let* ((layer (aref result-layer-array layer-count))
(name (string-append _"Frame" " "
(number->string
(- num-result-layers layer-count) 10))))
(gimp-item-set-visible layer TRUE)
(gimp-item-set-name layer name)
(set! layer-count (- layer-count 1))))
(if (= looped TRUE)
; remove the topmost layer
(gimp-image-remove-layer image (aref result-layer-array 0))))
(gimp-image-undo-enable image)
(gimp-display-new image)
(gimp-displays-flush)
)
(gimp-message _"Blend Animation needs at least three source layers")
)
)
)
(script-fu-register "script-fu-blend-anim"
_"_Blend..."
_"Create intermediate layers to blend two or more layers over a background as an animation"
"Sven Neumann <sven@gimp.org>"
"Sven Neumann"
"1999/12/21"
"RGB* GRAY*"
SF-IMAGE "Image" 0
SF-DRAWABLE "Drawable" 0
SF-ADJUSTMENT _"Intermediate frames" '(3 1 1024 1 10 0 1)
SF-ADJUSTMENT _"Max. blur radius" '(0 0 1024 1 10 0 1)
SF-TOGGLE _"Looped" TRUE
)
(script-fu-menu-register "script-fu-blend-anim"
"<Image>/Filters/Animation/Animators")
|