3D
What is a glTF file?
glTF is designed for efficient transfer of 3D assets between creation tools and applications. A .gltf file uses JSON and may reference external buffers or textures, while .glb is a binary container.
.gltf · .glbRuntime 3D asset format
When to choose this format
- Delivering a textured, animated model to a compatible real-time viewer
When to avoid this format
- Sending geometry straight to a 3D printer without mesh preparation
Common uses
- Web and app 3D delivery
Features
- JSON .gltf may reference separate binary buffers and images
- Binary .glb can package scene resources into one container
Advantages and disadvantages
Advantages
- Designed for efficient loading in real-time applications
Disadvantages
- Unsupported extensions can change a model's appearance or behavior
Open and convert
How to open
Open with a glTF-capable viewer and inspect geometry, materials, textures, and animation.
How to convert
When converting, check material appearance, texture links, animation, units, and scale.
Cautions
- Check texture paths, viewer extensions, scale and animation after export
FAQ
How do glTF and GLB differ?
glTF uses a JSON-based description; GLB packages a binary representation.