GaussianSplattingMesh serializer

Feature requests
, ,
1

For a long time GaussianSplattingMesh.prototype.serialize is missing so serialized GaussianSplattingMesh would result in a dummy mesh, not the GaussianSplattingMesh itself.

Now it’s here:

Some notes for reviewers:

  • keepInRam must be true to serialize splat data
  • Parts and GaussianSplattingPartProxyMesh are supported, but a dummy proxiedMesh with only getBoundingInfo() is created for each GaussianSplattingPartProxyMesh so constructor does not break.
  • GaussianSplattingPartProxyMesh is not exported so I managed to get it from part1.constructor
  • partIndices is compressed with Run-Length Encoding (RLE) during serialization, and recovered on Parse
  • flipY from IUpdateOptions needed to be stored to the instance to keep parsing correct
  • Mesh.Parse or BabylonFileLoader needs to be updated for this change to make it work with .babylon files
2

SceneSerializer supported, but GaussianSplattingPartProxyMesh needs to be manually added to scene to make it work correctly:

3

This would be wonderful to contribute upstream after 9.0. :smiley: Thanks for your work, as always!

4

Here is a PR:

3 Likes
5

Moving to “Feature requests” as a PR targeting it

2 Likes
6

And now it’s possible to have a demo targeting this pr: https://playground.babylonjs.com/?snapshot=refs/pull/18032/merge#FNEHUL