Releases
v1.39.3
Added
Added support for the fract node , with implementations in GLSL, OSL, and MDL.
Added a bitangent input to the bump node , aligning its feature set with the normalmap node.
Added support for OSL 1.14 in shader generation, leveraging the latest closures when available.
Added support for MDL 1.10 in shader generation, leveraging the latest closures when available.
Added initial support for data library builds , allowing future releases to generate derived artifacts from the MaterialX data libraries.
Added an ElementVec type alias in MaterialX C++, allowing certain patterns to be expressed more clearly and concisely.
Changed
Improved the compatibility of MaterialX shader generation with Hydra Storm .
Refactored the type system in shader generation, improving the thread-safety and robustness of the generation process.
Improved the implementations of the BSDF operator nodes , preferring data definitions over explicit C++ code.
Improved the implementations of the time node , using a graph definition in hardware shading languages.
Optimized GitHub CI to reduce build times for contributors.
Raised the minimum CMake version to CMake 3.26 .
Fixed
Fixed two edge cases in the version upgrade logic for normalmap nodes, addressing the usage of MaterialX versioning in OpenUSD.
Fixed tangent frame orthogonalization for the normalmap node in OSL shader generation.
Added validation of tree depth and XInclude depth in XML parsing, addressing cases where unusually complex documents could trigger a stack overflow.
Adding two missing null checks in the getShaderNodes helper function.
Integrated fixes to OSL type classes from recent work in the OSL project.
Improved the handling of invalid materials in the MaterialX Viewer, addressing cases where missing lights could trigger a crash.
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