(WIP) rendertoy3o

Wavefront path tracing playground with cuda/optix backend.

'o' in 3o stands for 'optix'.

Checklist

• Two level AS prototype.
• Next-event estimation.
• Lambertian material closure.
• Motion blur prototype.
• Uniform light sampler.
• Wavefront .obj file support.
• Texturing.
• Organized two level AS.
• Organized motion blur.
• Principled BSDF.
• RAII-style optix device.
• Power light sampler.
• Realtime denoiser.