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Compute Stochastic Screen Space Reflections for unity post processing
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Compute Stochastic Screen Space Reflections for Unity post processing. Utilizing shared memory for performance. Should be mostly production ready, except for a few Hierarchical Z-depth casting artifacts.
Features
- Hierarchical Z-depth casting
- Temporal reflection depth reprojection
- Median Filtering for extra denoising
- Reflection Color Mipmap Pyramid
- Raycast and resolve pass downsampling
- Frame reprojection for faking multiple bounces
- Specular elongation
- Contact hardening
Requirements
- Works only with deferred rendering
- Compute shader capable video card
- Unity Post Processing v2
- Tested with Unity 2018.2
References
Rewritten from Xerxes1138
Based mainly on Tomasz Stachowiak and Yasin Uludag, Siggraph15
Performance
Tested on a GTX 1070 at 1080p
Highest Quality, High Quality Blur
- Raycasting: 1.4 ms
- Blur: 0.73 ms
- Temporal: 0.67 ms
- Resolve: 0.55 ms
- Total + Others: 4.15 ms
Raycast and Resolved downsampled, Low Quality Blur
- Raycasting: 0.5 ms
- Temporal: 0.19 ms
- Resolve: 0.19 ms
- Total + Others: 1.7 ms
