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DCC Importer v1.1.0

October 24th, 2025​

✨ New Features​

  • Added a new setting glTFExtensionsToIgnore to the settings file. The glTF extensions found in the list are not present in the primary output glTF.
  • Added support for additional USDA output through the flag --additionalFormat.
  • Added new flag centerBoundingBox, which applies a transformation to the nodes of a scene translating them to the world origin.
  • Added image reading fallback for OpenImageIO unsupported formats.
  • Adds a new flag --vrayBlendRefraction that controls the behavior of Refraction in VRayBlend:
    • The flag receives the minimum threshold in color percentage for refraction in VRayBlendMtl base materials.
    • The default value is 10.0%, which closely resembles the previous results and is recommended to resemble VRay CPU results.
    • Changing the value to 0% generates results that closely match the VRay GPU results.
  • Adds support to VRayProxy mesh conversion:
    • Non-mesh VRayProxy objects remain unsupported.
  • Adds a more flexible conversion for nodes that, normally, can't be represented as Editble Mesh objects:
    • This includes support for Body Object and Compound primitives.
  • Add support to Camera conversion from 3ds Max scenes into glTF Cameras:
    • Disabled by default, can be enabled with the flag --convertCameras
    • At the moment, converting V-Ray cameras is not supported.
  • Add flag --invertNormalTexture, to invert Normal Maps in relation to what we usually expect (OpenGL-style textures).
  • Add support to .mat file import, through the flag --inputFormat:
    • The valid input formats will vary on a per-DCC basis - currently, supported values are 'mat' or 'max'. Default is 'max'.
    • Materials will be assigned into a Standard Shader Ball.
    • Materials will be baked with the flag --forceTiled turned on.

🔨 Adjustments​

  • Add support to 3ds Max 2026
  • Adjusted IOR to Metalness workflow to use color saturation during the translation process
  • General improvements to translation of several different materials
  • The Specular extension in the resulting glTF file is now generally stronger, always controlled by the Specular Color
  • Changed logic for hiding nodes based on node and material names
    • Match is now performed when the target name is followed or preceded by separators (-, _, ., spaces) when it lies in the beginning or end of a string. E.g., flying_plane and plane_flying would match the target name name
  • The version of DCC Importer used is now indicated as a docstring on MaterialX files.
  • Whenever possible, removes an additional root node introduced by 3ds Max USD Export.
    • Currently, this is only possible for scenes with a single root node in the input 3ds Max scene file.
  • USD files exported from 3ds Max have been adjusted to always use 1.0 meter per unit, for compatibility.

⚡ Fixes​

  • Fixed issues with bounding box detection when AABBs have length equal to zero
  • Fix issues with version check for 3ds Max 2025.3.X
  • Fix issues maintaing scene structure when multiple layers are present in a 3ds Max scene file.
  • Attempts to fix invalid normal vectors, to avoid recalculating normals when converting from USD to glTF.
  • Mesh names are now correctly kept in glTF files, in addition to the Node names.
  • Fix issues with some UV Unwrapping in extreme cases.
  • Fixes Volume Attenuation regression introduced in v1.0.

For more information, see the reference documentation for RapidPipeline DCC Importer.