glTF (version 2.0) is a recent JSON-based 3D geometry delivery format. It supports modern materials (PBR) as well as geometry instancing and is supported by many desktop- and web-apps. It is currently a recommended exchange format for new projects. For more details, refer to https://github.com/KhronosGroup/glTF.
Export settings
In addition to the general export options, glTF has the following options:
GLTF Output Format | If set to glTF binary, the file is stored as a .glb file which contains all geometry and texture data. If set to glTF JSON, the file is stored as a .gltf with geometry stored in .bin files and textures as .png files. |
CGA mapping to glTF
| glTF material | CGA material |
|---|---|
baseColorTexture | material.colormap and material.opacitymap |
baseColorFactor | material.color and material.opacity |
alphaMode | material.opacitymap.mode |
metallicRoughnessTexture | material.metallicmap and material.roughnessmap |
metallicFactor | material.metallic |
roughnessFactor | material.roughness |
normalTexture | material.normalmap |
occlusionTexture | material.occlusionmap |
emissiveTexture | material.emissivemap |
emissiveFactor | material.emissive |
Note:
- doubleSided, alphaCutoff, normalTexture.scale, and occlusionTexture.strength are not supported.
- Other CGA material maps are ignored.