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This example is for Processing version 1.0+. 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 1.
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).
float a = 0.0;
float rSize; // rectangle size
void setup() {
size(640, 360, P3D);
rSize = width / 6;
noStroke();
fill(204, 204);
}
void draw() {
background(0);
a += 0.005;
if(a > TWO_PI) {
a = 0.0;
}
translate(width/2, height/2);
rotateX(a);
rotateY(a * 2.0);
rect(-rSize, -rSize, rSize*2, rSize*2);
rotateX(a * 1.001);
rotateY(a * 2.002);
rect(-rSize, -rSize, rSize*2, rSize*2);
}