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- XPU does not currently support redirection of errors away from the console, which means DCCs will not be able to report XPU errors in their UI.
- Warnings on the console when rendering to XPU from Katana. There are some warnings you will see on the console about a bad DSO being found for the socket display driver. You can ignore these.
- Picking from "it" does not relay the selection back to RenderMan for Maya
- RenderMan for Maya does not yet support supports batch rendering to XPU (PxrPathTracer integrator)
Shading
| BxDFs, Displacements, & Patterns | RIS | XPU | Notes |
|---|---|---|---|
PxrSurface | ✅ | ✅ | Some Subsurface modes are not available. Second refraction roughness is not yet implemented. |
PxrLayerSurface | ✅ | ✅ | |
PxrDisneyBsdf | ✅ | ✅ | |
PxrMarschnerHair | ✅ | ✅ | |
PxrConstant | ✅ | ✅ | |
| PxrDiffuse | ✅ | ✅ | |
| PxrDisplace | ✅ | ✅ | |
MaterialX Lama | ✅ | ❌ | |
PxrVolume, Volumes | ✅ | ❌ | |
OSL Patterns | ✅ | ✅ | PxrDirt & PxrCurvature not supported |
C++ Patterns | ✅ | ❌ | |
| PxrSeExpr | ✅ | ❌ | |
Baking | ✅ | ❌ | |
Point Clouds | ✅ | ❌ |
...
| Integration & Ray Tracing | RIS | XPU | Notes |
|---|---|---|---|
PxrPathTracer | ✅ | ✅ | Some features not available |
PxrUnified | ✅ | ❌ | |
PxrVCM | ✅ | ❌ | |
| PxrOcclusion | ✅ | ✅ | |
PxrVisualizer | ✅ | ✅ | Some features not available |
| PxrDefault | ✅ | ✅ |
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| Pipeline | RIS | XPU | Notes |
|---|---|---|---|
AOVs and LPEs | ✅ | ❌ | |
EXR, TIFF | ✅ | ✅ | |
Deep Output | ✅ | ❌ | |
Matte, Holdouts | ✅ | ❌ | |
| PxrCamera | ✅ | ❌ | |
| Crop windows | ✅ | ❌ | Will XPU support will be available in 24.2. crop windows in 'it' will be available in 24.4. |
| Advanced DOF controls (bokeh, etc) | ✅ | ❌ |
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