gimp/plug-ins/script-fu/scripts/spinning-globe.scm

116 lines
4.3 KiB
Scheme

;
; anim_sphere
;
;
; 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 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 the function:
(define (script-fu-spinning-globe inImage
inLayer
inFrames
inFromLeft
inTransparent
inIndex
inCopy)
(let* (
(theImage (if (= inCopy TRUE)
(car (gimp-image-duplicate inImage))
inImage))
(theLayer (vector-ref (car (gimp-image-get-selected-layers theImage)) 0))
(n 0)
(ang (* (/ 360 inFrames)
(if (= inFromLeft TRUE) 1 -1) ))
(theFrame 0)
)
(gimp-layer-add-alpha theLayer)
(while (> inFrames n)
(set! n (+ n 1))
(set! theFrame (car (gimp-layer-copy theLayer FALSE)))
(gimp-image-insert-layer theImage theFrame 0 0)
(gimp-item-set-name theFrame
(string-append "Anim Frame: "
(number->string (- inFrames n) 10)
" (replace)"))
(plug-in-map-object RUN-NONINTERACTIVE
theImage ; mapping image
(vector theFrame) ; mapping drawables
"map-sphere" ; sphere
0.5 0.5 2.0 ; viewpoint
0.5 0.5 0.0 ; object pos
1.0 0.0 0.0 ; first axis
0.0 1.0 0.0 ; 2nd axis
0.0 (* n ang) 0.0 ; axis rotation
"point-light" ; light type
'(255 255 255) ; light color
-0.5 -0.5 2.0 ; light position
-1.0 -1.0 1.0 ; light direction
0.3 1.0 0.5 0.0 27.0 ; material (amb, diff, refl, spec, high)
TRUE ; antialias
3.0 ; depth
0.25 ; threshold
FALSE ; tile
FALSE ; new image
FALSE ; new layer
inTransparent ; transparency
0.25 ; radius
1.0 1.0 1.0 1.0 ; unused parameters
-1 -1 0.5 0.5 0.5 -1 -1 0.25 0.25
)
)
(gimp-image-remove-layer theImage theLayer)
(plug-in-autocrop RUN-NONINTERACTIVE theImage theFrame)
(if (= inIndex 0)
()
(gimp-image-convert-indexed theImage CONVERT-DITHER-FS CONVERT-PALETTE-GENERATE inIndex
FALSE FALSE ""))
(if (= inCopy TRUE)
(begin
(gimp-image-clean-all theImage)
(gimp-display-new theImage)
)
)
(gimp-displays-flush)
)
)
(script-fu-register
"script-fu-spinning-globe"
_"_Spinning Globe..."
_"Create an animation by mapping the current image onto a spinning sphere"
"Chris Gutteridge"
"1998, Chris Gutteridge / ECS dept, University of Southampton, England."
"16th April 1998"
"RGB* GRAY*"
SF-IMAGE "The Image" 0
SF-DRAWABLE "The Layer" 0
SF-ADJUSTMENT _"Frames" '(10 1 360 1 10 0 1)
SF-TOGGLE _"Turn from left to right" FALSE
SF-TOGGLE _"Transparent background" TRUE
SF-ADJUSTMENT _"Index to n colors (0 = remain RGB)" '(63 0 256 1 10 0 1)
SF-TOGGLE _"Work on copy" TRUE
)
(script-fu-menu-register "script-fu-spinning-globe"
"<Image>/Filters/Animation/")