import processing.opengl.*;
float a;
int Size=20;

int[][][][] voxel=new int[Size][Size][Size][4];

void setup(){
  size(400,400,OPENGL);
  smooth();
  noStroke();
  frameRate(30);
}

void draw(){
  background(100);
  for(int x=0;x<Size/2;x++){
    for(int y=0;y<Size/2;y++){
	for(int z=0;z<Size/2;z++){
	  if(voxel[x][y][z][0]==1){
	    fill(voxel[x][y][z][1],voxel[x][y][z][2],voxel[x][y][z][3]);
	    pushMatrix();
	    translate(width/2,height/2);
	    rotateY(a);
	    rotateX(a);
	    translate((x-Size/4)*15,(y-Size/4)*15,(z-Size/4)*15);
	    box(15);
	    popMatrix();
	    if(random(0,100)>99){
		voxel[x][y][z][0]=0;
	    }
	  }
	  else{
	    if(random(0,100)>99){
		voxel[x][y][z][0]=1;
		voxel[x][y][z][1]=10*x+150;
		voxel[x][y][z][2]=10*y+150;
		voxel[x][y][z][3]=10*z+150;

	    }
	  }

	}
    }
  }
  a=a+.01;
}