111 lines
3.5 KiB
Scheme
111 lines
3.5 KiB
Scheme
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; PIKA - Photo and Image Kooker Application
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; Copyright (C) 1995 Spencer Kimball and Peter Mattis
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;
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; This program is free software: you can redistribute it and/or modify
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; it under the terms of the GNU General Public License as published by
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; the Free Software Foundation; either version 3 of the License, or
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; (at your option) any later version.
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;
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; This program is distributed in the hope that it will be useful,
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; but WITHOUT ANY WARRANTY; without even the implied warranty of
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; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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; GNU General Public License for more details.
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;
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; You should have received a copy of the GNU General Public License
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; along with this program. If not, see <https://www.gnu.org/licenses/>.
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;
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;
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; waves-anim.scm version 1.01 1997/12/13
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;
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; CHANGE-LOG:
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; 1.00 - initial release
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; 1.01 - some code cleanup, no real changes
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;
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; Copyright (C) 1997 Sven Neumann <sven@gimp.org>
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;
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;
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; Makes a copy of your image and creates an animation of the active layer
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; as if a stone was thrown into the image. The animation may be saved with
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; the gif-plug-in.
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(define (script-fu-waves-anim img
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drawable
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amplitude
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wavelength
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num-frames
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invert)
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(let* ((amplitude (max 0 amplitude))
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(wavelength (max 0 wavelength))
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(num-frames (max 1 num-frames))
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(remaining-frames num-frames)
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(phase 0)
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(phaseshift (/ 360 num-frames))
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(image (car (pika-image-duplicate img)))
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(source-layer (aref (cadr (pika-image-get-selected-layers image)) 0)))
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(pika-image-undo-disable image)
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(if (= invert TRUE)
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(set! phaseshift (- 0 phaseshift)))
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(while (> remaining-frames 1)
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(let* (
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(waves-layer (car (pika-layer-copy source-layer TRUE)))
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(layer-name (string-append "Frame "
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(number->string
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(- (+ num-frames 2)
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remaining-frames) 10
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)
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" (replace)"))
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)
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(pika-layer-set-lock-alpha waves-layer FALSE)
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(pika-image-insert-layer image waves-layer 0 -1)
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(pika-item-set-name waves-layer layer-name)
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(plug-in-waves RUN-NONINTERACTIVE
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image
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waves-layer
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amplitude
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phase
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wavelength
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0
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FALSE)
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(set! remaining-frames (- remaining-frames 1))
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(set! phase (- phase phaseshift))
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)
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)
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(pika-item-set-name source-layer "Frame 1")
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(plug-in-waves RUN-NONINTERACTIVE
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image
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source-layer
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amplitude
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phase
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wavelength
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0
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FALSE)
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(pika-image-undo-enable image)
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(pika-display-new image)
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)
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)
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(script-fu-register "script-fu-waves-anim"
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_"_Waves..."
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_"Create a multi-layer image with an effect like a stone was thrown into the current image"
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"Sven Neumann <sven@gimp.org>"
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"Sven Neumann"
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"1997/13/12"
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"RGB* GRAY*"
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SF-IMAGE "Image" 0
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SF-DRAWABLE "Drawable" 0
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SF-ADJUSTMENT _"Amplitude" '(10 1 101 1 10 1 0)
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SF-ADJUSTMENT _"Wavelength" '(10 0.1 100 1 10 1 0)
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SF-ADJUSTMENT _"Number of frames" '(6 1 512 1 10 0 1)
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SF-TOGGLE _"Invert direction" FALSE
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)
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(script-fu-menu-register "script-fu-waves-anim"
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"<Image>/Filters/Animation/")
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