Fixed ripply-anim.scm and put it back into the distribution. I wonder how

this script has ever worked before...


--Sven

ChangeLog

@@ -1,3 +1,7 @@
+Sat Mar 21 18:34:56 MET 1998 Sven Neumann <sven@gimp.org>
+
+	* fixed ripply-anim.scm and readded it
+
 Sat Mar 21 16:26:08 MET 1998 Sven Neumann <sven@gimp.org>
 
 	* docs/gimp.1

plug-ins/script-fu/scripts/Makefile.am

@@ -55,6 +55,7 @@ scriptdata_DATA = \
 	neon-logo.scm				\
 	perspective-shadow.scm			\
 	predator.scm				\
+	ripply-anim.scm				\
 	round-corners.scm			\
 	select_to_brush.scm			\
 	select_to_image.scm			\

plug-ins/script-fu/scripts/ripply-anim.scm

@@ -0,0 +1,102 @@
+; "Rippling Image" animation generator (ripply-anim.scm)
+; Adam D. Moss (adam@foxbox.org)
+; 97/05/18
+;
+; Designed to be used in conjunction with a plugin capable
+; of saving animations (i.e. the GIF plugin).
+;
+
+(define (copy-layer-ripple dest-image dest-drawable source-image source-drawable)
+  (gimp-selection-all dest-image)
+  (gimp-edit-clear dest-image dest-drawable)
+  (gimp-selection-none dest-image)
+  (gimp-selection-all source-image)
+  (gimp-edit-copy source-image source-drawable)
+  (gimp-selection-none source-image)
+      (let ((floating-sel (car (gimp-edit-paste dest-image dest-drawable FALSE))))
+	(gimp-floating-sel-anchor floating-sel)))
+
+(define (script-fu-ripply-anim img drawable displacement num-frames)
+  (let* ((width (car (gimp-drawable-width drawable)))
+	 (height (car (gimp-drawable-height drawable)))
+	 (ripple-image (car (gimp-image-new width height GRAY)))
+	 (ripple-layer (car (gimp-layer-new ripple-image width height GRAY_IMAGE "Ripple Texture" 100 NORMAL))))
+
+ ; this script generates its own displacement map
+
+    (gimp-image-disable-undo ripple-image)
+    (gimp-palette-set-background '(127 127 127) )
+    (gimp-image-add-layer ripple-image ripple-layer 0)
+    (gimp-edit-fill ripple-image ripple-layer)
+    (plug-in-noisify 1 ripple-image ripple-layer FALSE 1.0 1.0 1.0 0.0)
+    ; tile noise
+    (set! rippletiled-ret (plug-in-tile 1 ripple-image ripple-layer (* width 3) (* height 3) TRUE))
+    (gimp-image-enable-undo ripple-image)
+    (gimp-image-delete ripple-image)
+
+    (set! rippletiled-image (car rippletiled-ret))
+    (set! rippletiled-layer (cadr rippletiled-ret))
+    (gimp-image-disable-undo rippletiled-image)
+
+    ; process tiled noise into usable displacement map
+    (plug-in-gauss-iir 1 rippletiled-image rippletiled-layer 35 TRUE TRUE)
+    (gimp-equalize rippletiled-image rippletiled-layer TRUE)
+    (plug-in-gauss-rle 1 rippletiled-image rippletiled-layer 5 TRUE TRUE)
+    (gimp-equalize rippletiled-image rippletiled-layer TRUE)
+
+    ; displacement map is now in rippletiled-layer of rippletiled-image
+
+    ; loop through the desired frames
+
+    (set! remaining-frames num-frames)
+    (set! xpos (/ width 2))
+    (set! ypos (/ height 2))
+    (set! xoffset (/ width num-frames))
+    (set! yoffset (/ height num-frames))
+
+    (let* ((out-imagestack (car (gimp-image-new width height RGB))))
+
+      (gimp-image-disable-undo out-imagestack)
+      
+      (while (> remaining-frames 0)
+	     (set! dup-image (car (gimp-channel-ops-duplicate rippletiled-image)))
+	     (gimp-image-disable-undo dup-image)
+	     (gimp-crop dup-image width height xpos ypos)
+	     
+	     (set! layer-name (string-append "Frame " 
+			(number->string (- num-frames remaining-frames) 10)))     
+	     (set! this-layer (car (gimp-layer-new out-imagestack 
+						   width height RGB 
+						   layer-name 100 NORMAL)))
+	     (gimp-image-add-layer out-imagestack this-layer 0)
+	     
+	     (copy-layer-ripple out-imagestack this-layer img drawable)
+	     
+	     (set! dup-layer (car (gimp-image-get-active-layer dup-image)))
+	     (plug-in-displace 1 out-imagestack this-layer 
+			       displacement displacement 
+			       TRUE TRUE dup-layer dup-layer 2)
+	     
+	     (gimp-image-enable-undo dup-image)
+	     (gimp-image-delete dup-image)
+	     
+	     (set! remaining-frames (- remaining-frames 1))
+	     (set! xpos (+ xoffset xpos))
+	     (set! ypos (+ yoffset ypos)))
+      
+      (gimp-image-enable-undo rippletiled-image)
+      (gimp-image-delete rippletiled-image)
+      (gimp-image-enable-undo out-imagestack)
+      (gimp-display-new out-imagestack))))
+
+(script-fu-register "script-fu-ripply-anim"
+		    "<Image>/Script-Fu/Animators/Rippling"
+		    "Ripple any image by creating animation frames as layers"
+		    "Adam D. Moss (adam@foxbox.org)"
+		    "Adam D. Moss"
+		    "1997"
+		    "RGB*, GRAY*"
+		    SF-IMAGE "Image to Animage" 0
+		    SF-DRAWABLE "Drawable to Animate" 0
+		    SF-VALUE "Rippling Strength" "3"
+		    SF-VALUE "Number of Frames" "15")