Section in the 3D Tiles spec about recommended glTF extensions

[lilleyse]

We should consider adding a section to the 3D Tiles spec about recommended glTF extensions. This would be like best practices guide for taking the most advantage out of glTF within the 3D Tiles / geospatial domain.

Inspired by the Khronos 3D formats guidelines: https://github.com/KhronosGroup/3D-Formats-Guidelines

e.g.

• EXT_mesh_features
• EXT_mesh_gpu_instancing
• KHR_mesh_quantization
• EXT_meshopt_compression
• KHR_draco_mesh_compression
• KHR_texture_basisu
• ...

[donmccurdy]

This would be like best practices guide for ... glTF within the 3D Tiles / geospatial domain.

Another good example for inspiration would be the 3D Commerce Real-time Asset Creation Guidelines. Basically, best practices for glTF within the online retail/commerce domain. Many of those same recommendations could apply here, too.

[javagl]

The MIGRATION.adoc covers some of these extensions. I wonder whether this should be made more explicit, and/or whether the list of "recommended extensions" should be featured more prominently somewhere in a GitHub MD/ADOC file...?

EDIT: It can not become part of the (now released) specification itself. The point is whether this issue could be closed, or should kept open as a reminder that such a section indeed should be added.