My excuse for getting an Oculus Rift was that I wanted to fly through 3D fractals.
When I found www.shadertoy.com, I concluded that it probably contained some of the fastest fractal code out there.
So I deceided that getting that code to run under Unity3D would be my quickest way to flying through it.

As starter I've chosen Apollonian because its a very fast fractal.

Later on I'd love to have a go at the juliabulb and mandelbulb shaders, but they are pretty expensive.

The shader code is GLSL, so it only runs in OpenGL mode.
Therefore you have to run Unity with the -force-opengl option!

All fractal shader code is by the awesome hackers at ShaderToy.com, I just massaged it into Unity3D.
The Oculus Rift handling code was based on the Oculus Unity integration package.