Pathtracer Benchmark

A benchmark of a custom offiline pathtracer comparing SAH-BVH and Havran SAH-KdTree as well as Vulkan SPIR-V and CUDA API

Milestones

Pathtracer

🟩 Base Pathtracer

• Rendering
• Mathmatically and Physically Accurate
• Handles Benchmark
  • Acc Framebuffer
  • Tree Stats buffer

🟩 Modularized

• Acceleration Structure
• API
• Scenes
• Resolution
• Light Bounces
• Tile Size
• Benchmark type
  • SPP
  • IMGREF

🟩 Vulkan SPIR-V

🟩 SAH-BVH

🟩 SAH-KdTree

🟩 CUDA

Benchmarks

🟩 Samples Per Pixel (SPP) benchmark

• Throughput time
• Finish time

🟩 Image reference benchmark

• Compare convergence speed
• RMSE; PSNR;

🟩 Trees Benchmark

• Build Time
• Memory
• Traversal/s
• Rays/s
• Isec/s

🟩 Pathtracer Benchmark

• Primary Rays
• Secondary Rays
• Shadow Rays

🟩 APIs Benchmark

• Vulkan (SPIR-V)
• CUDA

🟩 Benchmark automation

• Many benchmarks at single run
• Automatic resume files, infos and outputs

Optimizations

🟩 NEE

🟩 SAH

🟨 SoA

🟩 Large BVHs

⬜ van Emde Boas layout

⬜ Ray caching

⬜ Wavefront Pathtracing

⬜ Metropolis Light Transport

⬜ ReSTIR

⬜ Neural Radiance Caching

Supports

🟩 .obj and .mtl supoort

🟩 Diffuse material support

🟩 Glossy material support

⬜ Transmissive material support