How do you use occlusion culling together with MultiMesh?
The idea behind OccluderInstance3D is simple: you place it together with Mesh nodes and bake the occlusion. Unfortunately, if all your meshes are inside the MultiMesh node, this becomes impossible and OccluderInstance3D gives this error when trying to bake: “No meshes to bake. Make sure there is at least one MeshInstance3D node in the scene whose visual layers are part of the OccluderInstance3D’s Bake Mask property”.
Using MeshInstance3D, unfortunately, is impossible since I am using the “Spatial Gardener” addon, and it is it who creates these MultiMeshes. And using anything besides MultiMesh would be absurd, since I have close to 600 meshes inside these MultiMesh nodes.