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; GIMP - The GNU Image Manipulation Program
; Copyright (C) 1995 Spencer Kimball and Peter Mattis
;
; xach effect script
; Copyright (c) 1997 Adrian Likins
; aklikins@eos.ncsu.edu
;
; based on a idea by Xach Beane <xach@mint.net>
;
;
; 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 <https://www.gnu.org/licenses/>.
(define (script-fu-xach-effect image
drawables
hl-offset-x
hl-offset-y
hl-color
hl-opacity-comp
ds-color
ds-opacity
ds-blur
ds-offset-x
ds-offset-y
keep-selection)
(let* (
(drawable (vector-ref drawables 0))
(ds-blur (max ds-blur 0))
(ds-opacity (min ds-opacity 100))
(ds-opacity (max ds-opacity 0))
(type (car (gimp-drawable-type-with-alpha drawable)))
(image-width (car (gimp-image-get-width image)))
(hl-opacity (list hl-opacity-comp hl-opacity-comp hl-opacity-comp))
(image-height (car (gimp-image-get-height image)))
(active-selection 0)
(from-selection 0)
(theLayer 0)
(hl-layer 0)
(shadow-layer 0)
(mask 0)
)
(gimp-context-push)
(gimp-context-set-defaults)
(gimp-image-undo-group-start image)
(gimp-layer-add-alpha drawable)
(if (= (car (gimp-selection-is-empty image)) TRUE)
(begin
(gimp-image-select-item image CHANNEL-OP-REPLACE drawable)
(set! active-selection (car (gimp-selection-save image)))
(set! from-selection FALSE))
(begin
(set! from-selection TRUE)
(set! active-selection (car (gimp-selection-save image)))))
(set! hl-layer (car (gimp-layer-new image _"Highlight" image-width image-height type 100 LAYER-MODE-NORMAL)))
(gimp-image-insert-layer image hl-layer 0 -1)
(gimp-selection-none image)
(gimp-drawable-edit-clear hl-layer)
(gimp-image-select-item image CHANNEL-OP-REPLACE active-selection)
(gimp-context-set-background hl-color)
(gimp-drawable-edit-fill hl-layer FILL-BACKGROUND)
(gimp-selection-translate image hl-offset-x hl-offset-y)
(gimp-drawable-edit-fill hl-layer FILL-BACKGROUND)
(gimp-selection-none image)
(gimp-image-select-item image CHANNEL-OP-REPLACE active-selection)
(set! mask (car (gimp-layer-create-mask hl-layer ADD-MASK-WHITE)))
(gimp-layer-add-mask hl-layer mask)
(gimp-context-set-background hl-opacity)
(gimp-drawable-edit-fill mask FILL-BACKGROUND)
(set! shadow-layer (car (gimp-layer-new image
_"Shadow"
image-width
image-height
type
ds-opacity
LAYER-MODE-NORMAL)))
(gimp-image-insert-layer image shadow-layer 0 -1)
(gimp-selection-none image)
(gimp-drawable-edit-clear shadow-layer)
(gimp-image-select-item image CHANNEL-OP-REPLACE active-selection)
(gimp-selection-translate image ds-offset-x ds-offset-y)
(gimp-context-set-background ds-color)
(gimp-drawable-edit-fill shadow-layer FILL-BACKGROUND)
(gimp-selection-none image)
(gimp-drawable-merge-new-filter shadow-layer "gegl:gaussian-blur" 0 LAYER-MODE-REPLACE 1.0
"std-dev-x" (* 0.32 ds-blur) "std-dev-y" (* 0.32 ds-blur) "filter" "auto")
(gimp-image-select-item image CHANNEL-OP-REPLACE active-selection)
(gimp-drawable-edit-clear shadow-layer)
(gimp-image-lower-item image shadow-layer)
(if (= keep-selection FALSE)
(gimp-selection-none image))
(gimp-image-set-selected-layers image (vector drawable))
(gimp-image-remove-channel image active-selection)
(gimp-image-undo-group-end image)
(gimp-displays-flush)
(gimp-context-pop)
)
)
(script-fu-register-filter "script-fu-xach-effect"
_"_Xach-Effect..."
_"Add a subtle translucent 3D effect to the selected region (or alpha)"
"Adrian Likins <adrian@gimp.org>"
"Adrian Likins"
"9/28/97"
"RGB* GRAY*"
SF-ONE-OR-MORE-DRAWABLE
SF-ADJUSTMENT _"Highlight X offset" '(-1 -100 100 1 10 0 1)
SF-ADJUSTMENT _"Highlight Y offset" '(-1 -100 100 1 10 0 1)
SF-COLOR _"Highlight color" "white"
SF-ADJUSTMENT _"Highlight opacity" '(66 0 255 1 10 0 0)
SF-COLOR _"Drop shadow color" "black"
SF-ADJUSTMENT _"Drop shadow opacity" '(100 0 100 1 10 0 0)
SF-ADJUSTMENT _"Drop shadow blur radius" '(12 0 255 1 10 0 1)
SF-ADJUSTMENT _"Drop shadow X offset" '(5 0 255 1 10 0 1)
SF-ADJUSTMENT _"Drop shadow Y offset" '(5 0 255 1 10 0 1)
SF-TOGGLE _"Keep selection" TRUE
)
(script-fu-menu-register "script-fu-xach-effect"
"<Image>/Filters/Light and Shadow/[Shadow]")
|
