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Examples for Processing (BETA) version 91+. If you have a previous version, use the examples included with your software. If you see any errors or have comments, please let us know.

Rotate 3D
by REAS <http://reas.com>

Rotating simultaneously in the X and Y axis. Transformation functions such as rotate() are additive. Successively calling rotate(1.0) and rotate(2.0) is equivalent to calling rotate(3.0).

Updated 21 August 2002

    
// Rotate 3D 
// by REAS <http://reas.com> 

float a = 0.0; 
float rSize;  // rectangle size 
 
void setup() 
{ 
  size(200, 200, P3D); 
  rSize = width/4;  
  noStroke(); 
  fill(204, 204); 
  framerate(30); 
} 
 
void draw() 
{ 
  background(0); 
  
  a += 0.01; 
  if(a > TWO_PI) { 
    a = 0.0; 
  } 
  
  translate(width/2, height/2); 
  
  rotateX(a); 
  rotateY(a*2); 
  rect(-rSize, -rSize, rSize*2, rSize*2); 
  
  rotateX(a*1.001); 
  rotateY(a*2.002); 
  rect(-rSize, -rSize, rSize*2, rSize*2); 
 
}
 







    
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