finally hook up undo

1 files changed, 8 insertions, 2 deletions

diff --git a/js/shader.js b/js/shader.js
index 1418805..2e59ea3 100644
--- a/js/shader.js
+++ b/js/shader.js
@@ -20,7 +20,8 @@ var shader = (function(){
   }
   exports.run = function(canvas){
     var t = +new Date
-    var shader_canvas = selection.hidden ? canvas : selection.canvas;
+    // var shader_canvas = brush
+    selection.hidden ? canvas : selection.canvas;
     var w = shader_canvas.w, h = shader_canvas.h
     shader_canvas.forEach(function(lex, x, y){
       fn(lex, x, y, w, h, t)
@@ -38,9 +39,14 @@ var shader = (function(){
     animating = true
   }
   exports.animate = function (t){
+    // requestAnimationFrame(exports.animate)
+    if (! animating) { 
+      
     requestAnimationFrame(exports.animate)
-    if (! animating) { return }
+      return } else {
     exports.run(canvas)
+    requestAnimationFrame(exports.animate)
+      }
   }
   
   return exports