A collection of ideas, tips, and best practices for real-time ray tracing applications, created by graphics experts

Explores the capabilities of the latest APIs from Microsoft and other companies

Topics include efficiency, sampling, hybrid rasterization/ray-tracing systems, global illumination, and more

Part 1: Ray Tracing Basics.-

Chapter 1. Ray Tracing Terminology.-

Chapter 2. What is a Ray?.-

Chapter 3. Introduction to DirectX Raytracing.-

Chapter 4. A Planetarium Dome Master Camera.-

Chapter 5. Computing Minima and Maxima of Subarrays.-

Chapter 6. A Fast and Robust Method for Avoiding Self-Intersection.-

Chapter 7. Precision Improvements for Ray/Sphere Intersection.-

Chapter 8. Cool Patches: A Geometric Approach to Ray/Bilinear Patch Intersections.-

Chapter 9. Multi-Hit Ray Tracing in DXR.-

Chapter 10. A Simple Load-Balancing Scheme with High Scaling Efficiency.-

Part 3: Reflections, Refractions, and Shadows.-

Chapter 11. Automatic Handling of Materials in Nested Volumes.-

Chapter 12. A Microfacet-Based Shadowing Function to Solve the Bump Terminator Problem.-

Chapter 13. Ray Traced Shadows: Maintaining Real-Time Frame Rates.-

Chapter 14. Ray-Guided Volumetric Water Caustics in Single Scattering Media with DXR.-

Part 4: Sampling.-

Chapter 15. On the Importance of Sampling.-

Chapter 16. Sample Transformations Zoo.-

Chapter 17. Ignoring the Inconvenient When Tracing Rays .-

Chapter 18. Importance Sampling of Many Lights on the GPU.-

Part 5: Denoising and Filtering.-

Chapter 19. Cinematic Rendering in UE4 with Real-Time Ray Tracing and Denoising.-

Chapter 20. Texture Level of Detail Strategies for Real-Time Ray Tracing.-

Chapter 21. Simple Environment Map Filtering Using Ray Cones and Ray Differentials.-

Chapter 22. Improving Temporal Antialiasing with Adaptive Ray Tracing.-

Part 6: Hybrid Approaches and Systems.-

Chapter 23. Interactive Light Map and Irradiance Volume Preview in Frostbite.-

Chapter 24. Real-Time Global Illumination with Photon Mapping.-

Chapter 25. Hybrid Rendering for Real-Time Ray Tracing.-

Chapter 26. Deferred Hybrid Path Tracing.-

Chapter 27. Interactive Ray Tracing Techniques for High-Fidelity Scientific Visualization.-

Part 7: Global Illumination.-

Chapter 28. Ray Tracing Inhomogeneous Volumes.-

Chapter 29. Efficient Particle Volume Splatting in a Ray Tracer.-

Chapter 30. Caustics Using Screen Space Photon Mapping.-

Chapter 31. Variance Reduction via Footprint Estimation in the Presence of Path Reuse.-

Chapter 32. Accurate Real-Time Specular Reflections with Radiance Caching.-