File format limits

Strongly recommended following all regulations during the production to deliver the original experience and avoid bugs.

Apple AR Quick Look

Not supported:

• Vertex colors

• Morph targets and vertex animation.

• Texture filter modes. All textures are sampled linearly, with mipmapping.

• Clamp and mirror texture wrap modes. All textures use repeat mode.

• Cameras.

• Shadow animation. Shadows are generated from the first frame.

• Transparent shadows. This is particularly noticeable for transparent geometry near the ground, which will appear very dark due to shadow falloff.

• Multiple UV sets. The converter works around this by disabling textures using secondary UV sets, which works best for the most common use case.

• Multiple animations. The converter just exports a single animation.

• Multiple scenes. The converter just exports a single scene.

• Transparency sorting. Overlapping transparent surfaces are likely to look incorrect.

• Skinned animation for vertex normals. Lighting will look incorrect for skinned models, which is especially noticeable for highly reflective surfaces (it will have a painted-on appearance). The converter attempts to mitigate this by baking normals to the first frame of animation, but it will still look incorrect.

Android ARcore

Android SceneViewer glTF (GLB) does not support:

• Refraction, Dithered, and Additive transparency (will be converted to Blending)

• Cavity

• Bump map

• Clear Coat

• Anisotropy

• Subsurface Scattering / Translucency

• Displacement

• Lights

• Post-processing Filters

• Annotations