Vray lights making viewport stutter.

[stevesideas]

Is there a reason this would happen?

[stevesideas]

hmm. It seems to be with the fact that the geometry for the light was fairly hi-res. Odd that it would have an effect on the viewport though. Possibly also because the vraylightmesh had modifiers below the light instead of being a collapsed mesh.

[hermit.crab]

This happens because the VRayMeshLight shows all edges, whereas meshes most likely have their viewport preview optimized.