topical media & game development
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

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graphic-processing-site-examples-3D-Form-CubicGrid-CubicGrid.pde / pde
Cubic Grid by Ira Greenberg. 3D translucent colored grid uses nested pushMatrix() and popMatrix() functions. 

  
  
  float boxSize = 40;
  float margin = boxSize*2;
  float depth = 400;
  color boxFill;
  
  void setup() {
    size(640, 360, P3D);
    noStroke();
  }
  
  void draw() {
    background(255);
    
    // Center and spin grid
    translate(width/2, height/2, -depth);
    rotateY(frameCount * 0.01);
    rotateX(frameCount * 0.01);
  
    // Build grid using multiple translations 
    for (float i =- depth/2+margin; i <= depth/2-margin; i += boxSize){
      pushMatrix();
      for (float j =- height+margin; j <= height-margin; j += boxSize){
        pushMatrix();
        for (float k =- width+margin; k <= width-margin; k += boxSize){
          // Base fill color on counter values, abs function 
          // ensures values stay within legal range
          boxFill = color(abs(i), abs(j), abs(k), 50);
          pushMatrix();
          translate(k, j, i);
          fill(boxFill);
          box(boxSize, boxSize, boxSize);
          popMatrix();
        }
        popMatrix();
      }
      popMatrix();
    }
  }
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

(C) Æliens 20/2/2008

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