unity-tinybvh

An example implementation for tinybvh in Unity and a foundation for building compute based raytracing solutions.

Features

• TinyBVH Integration
  Leverages tinybvh for efficient BVH and Compact Wide BVH (CWBVH) construction, using a C++ plugin.

• GPU Mesh Aggregation
  Packs scene meshes into a unified aggregate vertex buffer and triangle attribute buffer via compute shader.

• Asynchronous BVH Construction
  Uses async readback to transfer mesh data from GPU to CPU, and runs BVH construction in a thread.

• Wavefront Path Tracer
  A basic compute based raytracer structured like a wavefront path tracer. Includes multiple display mode examples:

  • ndotl
  • BVH Steps
  • Ray Distance
  • Normals
  • Barycentrics
  • UVs

Future Plans

• Further optimization
• TLAS/BLAS
• Moving objects
• Skinned Mesh Renderer support