Optimize mesh serialization

Every deformable has its dynamic mesh serialized as a unique mesh. This bloats scene file size. It’s unnecessary because the dynamic mesh can be generated from the original mesh. MeshData.DynamicMesh isn’t serialized, but the target (Mesh Filter or Skinned Mesh Renderer) uses it and is serialized. Somehow the targets mesh reference needs to be overridden when serialized, to point to the original mesh. Then at runtime the dynamic mesh can be generated.

[keenanwoodall]

I’ve done a bit more testing and prefabs don’t seem to be an issue! 🤷‍♀️

I made a prefab with a bunch of default deformable cubes It’s only 519 KB

I put a few of the prefabs into a scene like so

It was super slow, but the scene was only 213 KB!

There’s definitely still a hiccup when loading a deformable-heavy scene since all the deformables have to initialize, but I’m pretty sure it’s faster than loading all the meshes off disk, so it’s a win in all regards.

If anyone runs into any issues or bugs with the changes let me know. I’d like to merge to main, but wanna be a little cautious so I might wait a bit.

[keenanwoodall]

oh yup I forgot to mention that part! thanks for catching that!

I think there might be an edge case where already serialized data on a currently disabled deformable won’t get swept with the OnSceneSaving function until you enable first then save the scene then disable and save again

interesting, i’ll look into it!