Capturing the Reality of Space with Ray Tracing in Deliver Us The Moon
summary
KeokeN retrofits Deliver Us The Moon to real-time RTX in Unreal Engine, trading full-ray options for targeted effects to hit performance goals: average framerate rises from ~51 to 93 fps on a 2080 Ti at 1080p after two months of optimization. Key techniques are ray tracing quality switch node and mip bias to simplify reflected materials, a max roughness cutoff (0.36) so only low-roughness surfaces are ray traced, hybrid translucency from NVIDIA to limit refraction rays, selective ray-traced directional/area lights, and an editor widget for fast testing.
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chapters (8)
- 0:00Introduction to Ray Tracing
- 2:06Performance Improvements
- 6:56Opaque Material Optimization
- 13:26Refining Normal Maps
- 18:48Translucent Material Challenges
- 23:24Hybrid Translucency
- 27:45Lighting and Shadows
- 34:00Conclusion and Benefits
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