GLB
GLB is the binary glTF 2.0 format from Khronos Group, packing meshes, materials, textures, and animations into one file. It is the standard for Web 3D and AR/VR, used by Three.js, Babylon.js, model-viewer, and e-commerce previews for self-contained, reliable distribution.
GLB supports PBR materials, skeletal animations, Draco and Meshopt compression, suitable for web, AR, and cross-software use. However, it loses CAD parametric history when tessellated from STEP or native CAD. For 3D printing, use STL or 3MF as slicers cannot import GLB.
Format Details
- Full Name
- GL Transmission Format Binary (glTF 2.0)
- Type
- 3D Model
- Open With
- Notes
- Some 3D printing slicers cannot directly import GLB files
- Not suitable for CAD parametric editing
- Supported Features
- Single self-contained binary file
- PBR material support (base color, metallic, roughness, normal maps)
- Skeletal animation, skinning, and morph targets
- Draco mesh compression and KTX2 texture compression
- Multi-mesh nodes and scene hierarchy
GLB
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