readme

zenovis/xinxinoptix/readme.md

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+# Features
+- Principled Shader
+    - [Practical and Controllable Subsurface Scattering for Production Path Tracing](https://disneyanimation.com/publications/practical-and-controllable-subsurface-scattering-for-production-path-tracing/)
+    - [Path Traced Subsurface Scattering using Anisotropic Phase Functions and Non-Exponential Free Flights](https://graphics.pixar.com/library/PathTracedSubsurface/)
+
+- Volume Rendering
+    - Homogeneous
+    - Heterogeneous
+        - Delta Tracking, Ratio Tracing
+    - OpenVDB, NanoVDB
+- Lighting
+    - [Importance Sampling of Many Lights with Adaptive Tree Splitting](https://fpsunflower.github.io/ckulla/data/many-lights-hpg2018.pdf)
+    - [An Area-Preserving Parametrization for Spherical Rectangles](https://blogs.autodesk.com/media-and-entertainment/wp-content/uploads/sites/162/egsr2013_spherical_rectangle.pdf)
+    - [Stratified Sampling of Spherical Triangles](https://www.graphics.cornell.edu/pubs/1995/Arv95c.pdf)
+    - [Portal-Masked Environment Map Sampling](https://benedikt-bitterli.me/PMEMS.pdf)