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CesiumGS / 3d-tiles

Specification for streaming massive heterogeneous 3D geospatial datasets :earth_americas:
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For 3dtiles without textures #625

Closed xuebingzzz closed 1 year ago

xuebingzzz commented 2 years ago

If 3dtiles has no texture and no texture coordinates, how to add texture coordinates to it?

lilleyse commented 2 years ago

Usually texture coordinates are generated when the tileset is produced and can't be added very easily after the fact. How are your 3D Tiles being generated? And what are you trying to achieve by generating texture coordinates?

One case where texture coordinates are generated dynamically is for draping imagery layers over 3D Tiles in cesium-native, but I can't think of other cases right now.

donmccurdy commented 2 years ago

(/cc https://github.com/KhronosGroup/glTF/issues/2122)

xuebingzzz commented 2 years ago

The idea now is to add textures to 3dfiles

javagl commented 1 year ago

At the core, this is not a question about the 3D Tiles specification itself (but rather about tooling surrounding 3D Tiles). If someone has ideas or comments, then they can still be added here, but for now, I'd close this.