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;
; distress selection
;
;
; Chris Gutteridge (cjg@ecs.soton.ac.uk)
; At ECS Dept, University of Southampton, England.
; 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 2 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, write to the Free Software
; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
; Define the function:
(define (script-fu-distress-selection inImage
inLayer
inThreshold
inSpread
inGranu
inSmooth
inSmoothH
inSmoothV)
(set! theImage inImage)
(set! theWidth (car (gimp-image-width inImage)))
(set! theHeight (car (gimp-image-height inImage)))
(gimp-image-undo-group-start theImage)
(set! theLayer (car (gimp-layer-new theImage
theWidth
theHeight
RGBA-IMAGE
"Distress Scratch Layer"
100
NORMAL-MODE)))
(gimp-image-add-layer theImage theLayer 0)
(if (= TRUE (car (gimp-selection-is-empty theImage)))
()
(gimp-edit-fill theLayer BACKGROUND-FILL))
(gimp-selection-invert theImage)
(if (= TRUE (car (gimp-selection-is-empty theImage)))
()
(gimp-edit-clear theLayer))
(gimp-selection-invert theImage)
(gimp-selection-none inImage)
(gimp-layer-scale theLayer
(/ theWidth inGranu)
(/ theHeight inGranu)
TRUE)
(plug-in-spread TRUE
theImage
theLayer
inSpread
inSpread)
(plug-in-gauss-iir TRUE theImage theLayer inSmooth inSmoothH inSmoothV)
(gimp-layer-scale theLayer theWidth theHeight TRUE)
(plug-in-threshold-alpha TRUE theImage theLayer inThreshold)
(plug-in-gauss-iir TRUE theImage theLayer 1 TRUE TRUE)
(gimp-selection-layer-alpha theLayer)
(gimp-image-remove-layer theImage theLayer)
(gimp-image-undo-group-end theImage)
(gimp-displays-flush))
(script-fu-register "script-fu-distress-selection"
_"_Distress Selection..."
"No description"
"Chris Gutteridge"
"1998, Chris Gutteridge / ECS dept, University of Southampton, England."
"23rd April 1998"
"RGB*"
SF-IMAGE "The image" 0
SF-DRAWABLE "The layer" 0
SF-ADJUSTMENT _"Threshold (bigger 1<-->255 smaller)" '(127 1 255 1 10 0 0)
SF-ADJUSTMENT _"Spread" '(8 0 1000 1 10 0 1)
SF-ADJUSTMENT _"Granularity (1 is low)" '(4 1 25 1 10 0 1)
SF-ADJUSTMENT _"Smooth" '(2 0 150 1 10 0 1)
SF-TOGGLE _"Smooth horizontally" TRUE
SF-TOGGLE _"Smooth vertically" TRUE)
(script-fu-menu-register "script-fu-distress-selection"
_"<Image>/Script-Fu/Selection")
|
