lib/rubysketch/glsl.rb in rubysketch-0.3.20 vs lib/rubysketch/glsl.rb in rubysketch-0.3.21

@@ -1,30 +1,37 @@
 module RubySketch
 
 
-  # @private
-  class GLSL
+  # OpenGL Shader Language
+  #
+  module GLSL
 
-    def initialize(glsl)
-      @shader = Reflex::Shader.new glsl
-    end
 
     # @private
-    def on_start__(window)
-      start = Time.now.to_f
+    class Context
 
-      window.draw = proc do |e, painter|
-        painter.paint do |p|
-          c = window.canvas
-          w = c.width
-          h = c.height
-          t = Time.now.to_f - start
-          p.shader @shader, resolution: [w, h], time: t if @shader
+      # @private
+      def initialize(window, shader_source)
+        shader = Rays::Shader.new shader_source
+        start  = now__
+        window.draw = proc do |e|
+          i, p = window.canvas_image, window.canvas_painter
+          w, h = i.width, i.height
+          p.shader shader, resolution: [w, h], time: now__ - start
           p.fill 1
           p.rect 0, 0, w, h
         end
       end
-    end
+
+      private
+
+      # @private
+      def now__()
+        Time.now.to_f
+      end
+
+    end# Context
+
 
   end# GLSL
 
 
 end# RubySketch