Gaussian Splatting Updates

[CedricGuillemet]

• Ortho projection : Ortho projection support for GS #17307
• Shadows Gaussian Splatting Shadows #17316
• Evaluate/test https://blog.playcanvas.com/playcanvas-adopts-sogs-for-20x-3dgs-compression GS SOG #17212
• Triangle Splatting for Real-Time Radiance Field Rendering https://trianglesplatting.github.io/
• Arc rotate and camera limits Add parsing for adobe splat meta fields in PLYs #17492
• Multiview/multicamera support Multiview support for GS #17508
• .babylon serialization
• 4th order spherical harmonics
• WASM SPZ loader
• bone and bone weight support
• GS LOD https://forum.babylonjs.com/t/new-feature-niantic-spz-gaussian-splatting-and-spherical-harmonics/55124/24?u=cedric
• Improve IsReady/Async with webworker: make sure instances are ready before IsReady is true.

Note:

• splat conversion tool : https://github.com/playcanvas/splat-transform

[github-actions]

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[CedricGuillemet]

PR for SOGS/SOG support is in progress : #17212