Welcome to RenderMan 22.4!
Welcome to RenderMan 22.4. This release introduces improvements to the previous RenderMan.
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What's New
- Further imporvements to OSL performance — A new mode of "Batched" OSL shading is available as a User Option and when used with Intel® Advanced Vector Extensions 512 (Intel® AVX-512). This may become defaulted to "on" in future versions. Read about it here under Performance Notes.
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Miscellaneous Changes
Fixes
API Changes
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
- Meshlights cannot be instanced
- 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 new mesh light on existing geometry during IPR results in double geometry
- Motion blurred polygons do not motion blur normals when deformed. Use Subdivision meshes instead
- 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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