Version 0.25.05

Update

• Update to use official 25.0.5 OpenUSD release which uses MaterialX 1.39.3
  • Python package dependency bumpd to 1.39.3.
• Updates related to glTF Texture Procedural Specification work:
  • Add animation example. (Only timestamps. Anim curves to come)
  • Add in sample "wedge" rendering and image concatenation script in utilities.
  • Add MaterialX document reference (vs embedded) example with nodegraph override.

Tests

• There were some small changes which are reflected in normalmap display. One Lama test has improved which could
  be due to proper usage of input inherited colorspace. Otherwise no change.
• Updated PhysicallyBased test with latest (As of 29/04/2025) materials list + added in readme.

Version 0.0.1

Prototype Version 0.0.1

Initial completed prototype to create USD render tests suite

• Requirements:

  • MaterialX 1.39.2 Python Package
  • OpenUSD build using MaterialX 1.39.2.

• Python library: materialxusd includes:

  • MTLX to USD distiller
  • MTLX pre-processer
  • MTLX reference builder (side utility)

• Results:

  • MaterialX test suite files from 1.39.2 used. Subset used for render test + glTF and OpenPBR tests
  • Unit tests and render tests using MaterialX GLSL, OSL vs HDStorm
  • Testing with PhysicallyBased library, AMD GPUOpen library and distilled Adobe materials.
  • Issues logged in MaterialX / OpenUSD Github repo.