MeshTweening example uses PShape

codeanticode · codeanticode · commit c5dec2bb4313 · 2015-11-15T20:19:44.000-05:00
diff --git a/content/examples/Demos/Graphics/MeshTweening/MeshTweening.pde b/content/examples/Demos/Graphics/MeshTweening/MeshTweening.pde
@@ -3,12 +3,38 @@
 // http://pyopengl.sourceforge.net/context/tutorials/shader_4.html
 
 PShader sh;
+PShape grid;
 
 void setup() {
   size(640, 360, P3D);
   sh = loadShader("frag.glsl", "vert.glsl");
   shader(sh);
-  noStroke();
+  
+  grid = createShape();
+  grid.beginShape(QUADS);
+  grid.noStroke();  
+  grid.fill(150);  
+  float d = 10;
+  for (int x = -500; x < 500; x += d) {
+    for (int y = -500; y < 500; y += d) {
+      grid.fill(255 * noise(x, y));
+      grid.attribPosition("tweened", x, y, 100 * noise(x, y));
+      grid.vertex(x, y, 0);
+     
+      grid.fill(255 * noise(x + d, y));
+      grid.attribPosition("tweened", x + d, y, 100 * noise(x + d, y));
+      grid.vertex(x + d, y, 0);
+      
+      grid.fill(255 * noise(x + d, y + d));
+      grid.attribPosition("tweened", x + d, y + d, 100 * noise(x + d, y + d)); 
+      grid.vertex(x + d, y + d, 0);
+      
+      grid.fill(255 * noise(x, y + d));
+      grid.attribPosition("tweened", x, y + d, 100 * noise(x, y + d));
+      grid.vertex(x, y + d, 0);    
+    }
+  }
+  grid.endShape();  
 }
 
 void draw() {
@@ -20,27 +46,5 @@ void draw() {
   rotateX(frameCount * 0.01);
   rotateY(frameCount * 0.01);
   
-  fill(150);
-  beginShape(QUADS);
-  float d = 10;
-  for (int x = -500; x < 500; x += d) {
-    for (int y = -500; y < 500; y += d) {
-      fill(255 * noise(x, y));
-      attribPosition("tweened", x, y, 100 * noise(x, y));
-      vertex(x, y, 0);
-     
-      fill(255 * noise(x + d, y));
-      attribPosition("tweened", x + d, y, 100 * noise(x + d, y));
-      vertex(x + d, y, 0);
-      
-      fill(255 * noise(x + d, y + d));
-      attribPosition("tweened", x + d, y + d, 100 * noise(x + d, y + d)); 
-      vertex(x + d, y + d, 0);
-      
-      fill(255 * noise(x, y + d));
-      attribPosition("tweened", x, y + d, 100 * noise(x, y + d));
-      vertex(x, y + d, 0);    
-    }
-  }
-  endShape();
+  shape(grid);
 }
