Fix slowdowns with V-Ray proxies at render end

If your render slows down at the end when using many V-Ray Proxies, the proxies were likely exported without Optimize for Instancing. Re-exporting them with this option enabled resolves the slowdown.

Step-by-step:

1. Import the geometry from the V-Ray Proxy object using the Import as Mesh feature.

   In 3ds Max: VRayProxy > Proxy params > Import

   In Maya: VRay Proxy > Restore the mesh > Create a mesh from this proxy

   

    

   Note that when you import the old .vrmesh in Maya, you need to use the "old" VRayProxy to have the "Create mesh from this proxy" option available.

   

    

   2. After the geometry is imported in the DCC application, export it again to a V-Ray Proxy file with Optimize for Instancing enabled.

   In 3ds Max: V-Ray > .vrmesh export

   In Maya: V-Ray > Create V-Ray proxy

Verifying whether a .vrmesh is optimized for instancing

A quick way to find out if the Optimize for Instancing option is enabled for a particular .vrmesh file is to use the PLY to .VRmesh converter tool with the -info argument:

ply2vrmesh.exe C:\path\to\file.vrmesh -info