Pixelsonoro · August 29, 2015 14:15 · Feb 10, 2015
diff --git a/gistfile1.pde b/gistfile1.pde
@@ -0,0 +1,142 @@
+int[][] result;
+float t, c;
+
+float ease(float p) {
+  return 3*p*p - 2*p*p*p;
+}
+
+float ease(float p, float g) {
+  if (p < 0.5) 
+    return 0.5 * pow(2*p, g);
+  else
+    return 1 - 0.5 * pow(2*(1 - p), g);
+}
+
+float mn = .5*sqrt(3);
+
+void setup() {
+  setup_();
+  result = new int[width*height][3];
+}
+
+void draw() {
+
+  if(!recording){
+    t = mouseX*1.0/width;
+    c = mouseY*1.0/height;
+    if(mousePressed)
+        println(c);
+    draw_();
+  }
+
+  else {
+  for (int i=0; i<width*height; i++)
+    for (int a=0; a<3; a++)
+      result[i][a] = 0;
+
+  c = 0;
+  for (int sa=0; sa<samplesPerFrame; sa++) {
+    t = map(frameCount-1 + sa*shutterAngle/samplesPerFrame, 0, numFrames, 0, 1);
+    draw_();
+    loadPixels();
+    for (int i=0; i<pixels.length; i++) {
+      result[i][0] += pixels[i] >> 16 & 0xff;
+      result[i][1] += pixels[i] >> 8 & 0xff;
+      result[i][2] += pixels[i] & 0xff;
+    }
+  }
+
+  loadPixels();
+  for (int i=0; i<pixels.length; i++)
+    pixels[i] = 0xff << 24 | 
+      int(result[i][0]*1.0/samplesPerFrame) << 16 | 
+      int(result[i][1]*1.0/samplesPerFrame) << 8 | 
+      int(result[i][2]*1.0/samplesPerFrame);
+  updatePixels();
+
+  saveFrame("f###.gif");
+  if (frameCount==numFrames)
+    exit();
+  }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+int samplesPerFrame = 8;
+int numFrames = 240;        
+float shutterAngle = .33;
+
+boolean recording = false;
+
+void setup_() {
+  size(800,600,P3D);
+  rectMode(CENTER);
+  stroke(250);
+  strokeWeight(3.5);
+  smooth(8);
+  ortho();
+  noFill();
+}
+
+void ver(float xx, float yy, float zz){
+  tt = ease(constrain(1.4*((3*t)%1)-map(yy,-l/2,l/2,0,.4),0,1),2.5);
+  vertex(xx*cos(HALF_PI*tt) + zz*sin(HALF_PI*tt), yy, zz*cos(HALF_PI*tt) - xx*sin(HALF_PI*tt));
+}
+
+float x, y, z, tt;
+float l = 195;
+float ww = 1;
+float xrot = atan(sqrt(.5));
+
+void draw_() {
+  background(#B55EB2); 
+  pushMatrix();
+  translate(width/2, height/2);
+  rotateX(xrot);
+  rotateY(QUARTER_PI);
+  if(3*t<=1)
+    rotateX(HALF_PI);
+  else if(3*t <= 2)
+    rotateZ(HALF_PI);
+
+  for(int i=0; i<4; i++){
+    for(int j=0; j<4; j++){
+      x = map(i,0,3,-l/2,l/2);
+      y = map(j,0,3,-l/2,l/2);
+      beginShape();
+      for(int a=0; a<100; a++){
+        z = map(a,0,99,-l/2-ww,l/2+ww);
+        ver(x,y,z);
+      }
+      endShape();
+    }
+  }
+
+  for(int i=0; i<4; i++){
+    for(int j=0; j<4; j++){
+      x = map(i,0,3,-l/2,l/2);
+      z = map(j,0,3,-l/2,l/2);
+      beginShape();
+      for(int a=0; a<100; a++){
+        y = map(a,0,99,-l/2-ww,l/2+ww);
+        ver(x,y,z);
+      }
+      endShape();
+    }
+  }
+
+  for(int i=0; i<4; i++){
+    for(int j=0; j<4; j++){
+      y = map(i,0,3,-l/2,l/2);
+      z = map(j,0,3,-l/2,l/2);
+      beginShape();
+      for(int a=0; a<100; a++){
+        x = map(a,0,99,-l/2-ww,l/2+ww);
+        ver(x,y,z);
+      }
+      endShape();
+    }
+  }
+  popMatrix();
+}
+
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