threedXO.pde

float cubeSize = 80;
color boxFill;
float rotYTarget = 0;
float rotXTarget = 0;
float rotationY = 0;
float rotationX = 0;
void setup()
{
  size(640,640, P3D);
  //smooth();
  //ortho(-width/2, width/2, -height/2, height/2, -10, 10);
}

void draw()
{
  background(255);


  translate(width/2,height/2,0);
  rotationY = lerp(rotationY, rotYTarget, 0.09);
  rotationX = lerp(rotationX, rotXTarget, 0.09);

  rotateY(rotationY);
  rotateX(rotationX);
  
  float i,j,k;
  for(i = -cubeSize; i <= (cubeSize*2)-cubeSize; i += cubeSize)
  {
    pushMatrix();

    for(j = -cubeSize; j <= (cubeSize*2)-cubeSize; j+= cubeSize)
    {
      pushMatrix();
      for (k = -cubeSize; k <= (cubeSize*2)-cubeSize; k += cubeSize)
      {

        boxFill = color(0,0,0,30);
        pushMatrix();
        translate(k,j,i);
        fill(boxFill);
        box(cubeSize, cubeSize, cubeSize);
        popMatrix();
      }
      popMatrix();
    }
    popMatrix();
  }
  

}

void mousePressed()
{
  rotYTarget += PI/2;
}

void keyPressed()
{
  switch(keyCode)
  {
    case 37:
      println("left");
      rotYTarget -= PI/2;
      break;
    case 38:
      println("up");
      rotXTarget += PI/2;
      break;
    case 39:
      println("right");
      rotYTarget += PI/2;
      break;
    case 40:
      println("down");
      rotXTarget -= PI/2;
      break;
  }
}