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Miscellaneous Changes
RiPoints
Spherical RiPoints using pointfalloff now have better lighting behavior when it comes to copenetrating spheresinterpenetrating spheres. The calculation when the ray origin is inside a sphere has been amended to provide a more predictable lighting result
- PxrRemap: inputMin and inputMax no longer enforce hard value limits
- Increased the maximum capacity of the curves BVH, which is now at about 2 billion curve segments per single curves primitive
PxrUnified now supports Attribute "trace" "diffusedepth" and "speculardepth". Unlike PxrPathTracer, this behavior is opt-in only and must be enabled by setting the new integrator parameter "useTraceDepth" to 1
Fixes
Fixed an intermittent crash when linear curves which had varying opacity were used
- Fixed a regression in PxrVary that could make the renderer crash
Fixed a potential crash when geometry deformation sample times are different from the shutter time
Fixed UDIMs with extra filepath separators
A bug that caused EXR displays that were dirmapped to fail to render has been addressed
- A bug that caused checkpointing to fail on Windows has been fixed
Fixed a rare bug where the renderer could crash during expansion of procedurals if the procedural had an invalid transformation matrix
Fixed a rare memory corruption when freeing geometry buffers. The corruption was manifesting as a crash during rendering startup or at completion
Fixed a regression that prevented projection plug-ins from accessing textures at CreateInstanceData time
Fix an issue with INFs (infinite or not a number) appearing in deep output of volumes
- Fixed RixTransform bug when calculating to/from world space matrix from RiProcedurals
- Add "Coordinate system memory" to gprim stats
- OSL
OSL will no longer complain about missing coordinate systems in the log, you must now check your return values in shaders instead
- Fixed a bug preventing access to string attributes from OSL
- Fix potential crash when using getattribute("rendererinfo") in OSL SIMD mode
Interactive/Live Rendering Limitations
- Crop window edits are restricted to fall inside the original crop window
RenderMan Pro Server Limitations
- PxrUnified integrator does not yet support all the standard rendering features
- We do not read point data from OpenVDB files
- PxrSurface back diffuse color is not output to the albedo color AOV
- Analytical lights placed inside volumes may yield artifacts when made visible to the camera. As a work around, the light camera visibility should be turned off, and a geometry with a similar shape should be used (visible to camera, invisible to transmission and indirect rays), with the proper emissive bxdf
- Using the ' . ' character in the handle for an OSL shader could cause unpredictable results during re-rendering
- Per-Instance baking is not supported, only the reference instance
- 3d baking: no direct bake-to-ptex support
- PxrBakePointCloud cannot directly render ptex
- Sample/Display filter plug-ins do not have access to lighting services for light dependent effects, e.g. lens flare
- Adding a new mesh light on existing geometry during IPR results in double geometry
- Motion blurred geometry does not motion blur normals when deformed
- When attempting to access an array primvar, you must first check the size of the array primvar and allocate the appropriate space. Not doing so may lead to a crash
- Points and curves cannot be used as geometric (mesh) lights
Deformation motion blurred volumes don't currently work with densityFloatPrimVar or densityColorPrimVar. You will need to use a PxrPrimVar node connected to densityFloat and densityColor instead
Note The Centos KDE style "Oxygen" installs a version of Qt and sets the user's environment variable QT_PLUGIN_PATH forcing "it" and LocalQueue to attempt to load an incompatible Qt library. Either avoid installing the Oxygen theme or unset QT_PLUGIN_PATH before running "it" or LocalQueue. Other KDE styles may also install this theme.
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