samuelch727 / usd2gltf

usd2gltf

USD to GLTF/GLB converter

Current version 0.3.5

Usage

This package can be incorporated into a DCC tool (like Houdini) or used from the command-line.

CLI

usage: usd2gltf [-h] [-i INPUT] [-o OUTPUT] [--interpolation INTERPOLATION] [-d] [-f]

Convert incoming USD(z) file to glTF/glb

optional arguments:

• -h, --help show this help message and exit
• -i INPUT, --input INPUT
  • Input USD (.usd, .usdc, .usda, .usdz)
• -o OUTPUT, --output OUTPUT
  • Output glTF (.gltf, .glb)
• --interpolation INTERPOLATION
  • Interpolation of animation (LINEAR, STEP, CUBIC)
• -d, --debug Run in debug mode
• -f, --flatten Flatten all animations into one animation

Requirements

• usd-core (Or custom Pixar USD build)
• gltflib
• numpy

Features

• Mesh conversion
  • UV support (TEXCOORD_0, TEXCOORD_1)
  • displayColor support (COLORS_0)
  • Animated skeleton, weights, skinning
  • Normals and tangents supported
• Materials
  • UsdPreviewSurface -> PBRMetallicRoughness
• Camera conversion
• Light conversion
  • Point
  • Spot
  • Directional
• Xform conversion
  • Animated xforms supported
• Animations
  • Allows per object animation or single flat GLTF animation
• Export
  • GLB and GLTF options
• GLTF Extras