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Supported Features

This page provides a comprehensive overview of all file formats, extensions, shaders, and image formats supported by the glTF Importer for Maya plugin.

Supported File Types

The plugin supports the following glTF file formats:

  • glTF (.gltf) - JSON-based 3D scene format
  • glb (.glb) - Binary glTF format with embedded resources

Supported Extensions

The plugin supports the following Khronos and vendor extensions:

Note: The implementation status of extensions varies. Some extensions are fully supported, while others may be partially implemented or have known limitations. Please test your specific use case and refer to the limitations documentation for details.

If you encounter any issues with specific extensions, please join the Discord server to report issues, share details about your use case and sample files. This helps us improve support for partially implemented extensions.

Khronos Extensions (KHR_)

Extension Description
KHR_draco_mesh_compression Geometry compression for reduced file sizes (Windows only)
KHR_lights_punctual Point, spot, and directional lights
KHR_materials_anisotropy Anisotropic material reflection
KHR_materials_clearcoat Clear coat material layer
KHR_materials_diffuse_transmission Diffuse light transmission through materials
KHR_materials_dispersion Chromatic dispersion effects
KHR_materials_emissive_strength Enhanced emissive material strength
KHR_materials_ior Index of refraction for materials
KHR_materials_iridescence Iridescent material effects
KHR_materials_sheen Fabric-like sheen material properties
KHR_materials_specular Specular workflow materials
KHR_materials_transmission Light transmission through materials
KHR_materials_unlit Unlit/constant color materials
KHR_materials_variants Multiple material variants per mesh
KHR_materials_volume Transmission volume material properties
KHR_mesh_quantization Reduced precision vertex attributes for smaller file sizes
KHR_texture_transform Texture coordinate transformations

Vendor Extensions (EXT_)

Extension Description
EXT_mesh_gpu_instancing GPU-based mesh instancing

Supported Shaders

The plugin supports conversion to the following Maya shader types:

  • Standard Surface - Maya's standard physically-based shader
  • AiStandardSurface - Arnold renderer's standard surface shader
  • OpenPBR - Open-source physically-based rendering shader (Maya 2025 and later versions)
  • StingrayPBS - Stingray physically-based shader (only basic material properties: BaseColor, ORM, Normal, Emissive)

Supported Image Formats

The plugin can process the following image formats for textures:

  • JPEG (.jpg, .jpeg) - Compressed raster images
  • PNG (.png) - Lossless compressed raster images with transparency support
  • WEBP (.webp) - WIP

Compatibility Notes

  • While most Khronos extensions are implemented, not all are supported by the importer. Some extensions are not yet implemented, and others may not be natively supported in Maya.
  • Shader support depends on the Maya version