Repository navigation
Zeltner Sheen BSDF #314
Description
Implement Zeltner Sheen as a BSDF in moonray/lib/rendering/shading
- Create a parameterized struct in lib/rendering/shading/BsdfComponent.{h, cc}
- Implement the BSDF within a new subfolder of lib/rendering/shading/bsdf
- Modify lib/rendering/shading/BsdfBuilder to accept the struct and instantiate the BSDF
- Create a Fresnel and LobeAttenuator to handle energy conservation for underlying lobes
- Repeat above for ISPC
Metadata
Metadata
Assignees
Labels
No labels
Type
Fields
Priority
None yet
Projects
- Status
Activity
redartengineer commentedon Oct 6, 2026
Hi @dmccann-dwa! I'm interested in working on this issue. I've been looking into the existing Velvet BSDF implementations in MoonRay and studying the Zeltner Sheen model. I've also been looking at the MaterialX PBR Specification and its Zeltner Sheen model as a reference.
dmccann-dwa commentedon Oct 7, 2026
Go for it! I'd recommend making a test material in the vein of moonray/dso/material/UsdPreviewSurface as you go. Let us know if you have any questions.