Controls:

1. Click and drag to orbit
2. Right click to pan
3. Scroll to zoom
4. Number keys 1 through 5 display different fractals:
 1 = Menger sponge
 2 = Mandelbulb
 3 = Mandelbox
 4 = Serpinski Pyramid
 5 = Menger Sponge intersected with Mandelbox
 6 = Mandelbulb intersected with Mandelbox
5. Press "a" to toggle the mandelbulb animation mode (this makes the mandelbulb animate)
6. Press "r" to reset camera position/orientation