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Add GLTF/GLB support for Local Mesh and Export - #3

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Add GLTF/GLB support for Local Mesh and Export#3
google-labs-jules[bot] wants to merge 1 commit into
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localmesh-gltf-support-4233962037181362807

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Implemented GLTF/GLB import for the Local Mesh feature and added GLTF/GLB export capability.

Import:

  • Leverages existing LLGLTFLoader logic to parse GLTF files.
  • Maps imported models to LLLocalMeshObject for preview.

Export:

  • Implements GLTFExporter which writes .gltf or .glb files using LL::GLTF::Asset.
  • Supports exporting rigged meshes by retrieving skinning information (LLMeshSkinInfo) directly from gMeshRepo (asset data), ensuring accurate weight and joint export compared to render buffer extraction.
  • Maps SL packed weights to GLTF standard accessors.
  • Creates a flat joint hierarchy for exported rigged meshes to ensure compatibility.

PR created automatically by Jules for task 4233962037181362807 started by @beqjanus

- Added `vjlocalmeshimportgltf.cpp` and `.h` to handle GLTF import for local mesh preview, reusing `LLGLTFLoader`.
- Added `gltfexport.cpp` and `.h` to implement GLTF export, including rigged mesh support by reading from asset data.
- Updated `vjlocalmesh` to detect and handle `.gltf` and `.glb` files.
- Updated `daeexport.cpp` to integrate GLTF export into the UI and file picker.
- Updated `CMakeLists.txt` to include new files.
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beqjanus pushed a commit that referenced this pull request Mar 20, 2026
@beqjanus beqjanus closed this Apr 1, 2026
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