MDL SDK 2023.0.6 (367100.5773): 03 Nov 2023

ABI compatible with the MDL SDK 2023.0.6 (367100.5773) binary release
(see https://developer.nvidia.com/mdl-sdk)

Added and Changed Features

• General

  • Various performance improvements, in particular with a focus on creation of
    compiled materials.
  • Python Bindings:
    • Added get and set value functions to the bindings of types in mi::data and
      added corresponding tests.
    • Removed the IAttribute_set interface from the bindings of the IScene_element types.

• MDL Compiler and Backends

  • Optimized high-level (GLSL/HLSL) code generator to reduce code size.
  • Added new backend option "hlsl_remap_functions": This allows to remap MDL functions
    (including state functions) to user implemented Native HLSL implementations.

• MDL Distiller and Baker

  • Renamed mdl_distiller command line tool to mdl_distiller_cli to more
    clearly separate it from the distiller plugin of the same name.

Fixed Bugs

• General

  • Fixed IFactory::compare() for IString and IRef on Linux on ARM.
  • Python Bindings:
    • Fixed the binding for the ITile::get_pixel() and
      ITile::set_pixel() functions.
    • Mapped mi::Size to signed integer in python to allow for
      comparing against -1.
    • Deprecated the tuple return of functions that have an float* out parameter in C++.
      Now an ReturnCode object is passed in and out as Python parameter.
    • Removed unused classes and functions from the bindings.

• MDL Distiller and Baker

  • mdltlc: Fixed matching on nested attribute expressions.
  • Fixed missing enum to int conversion operator an auto-imports,
    which caused compilation errors in rare cases.
  • Fixed context information when compiling entities in the DAG-backend
    (fixes only some asserts in debug mode).
  • Fixed HLSL/GLSL code generation for access to single element compound types,
    like arrays of length 1 or structs with only one field.