"No decay" not working for area lights in GPU mode

V-Ray V-Ray for Rhino Issues
1

…
-Micha

2

This is intended. The deprecation of this option is being considered which in turn blocked its implementation in the GPU engine.
When using V-Ray Next for Rhino, you may notice a slight effect for area lights when their option “No Decay” is enabled, however, this is an unintended result which will be fixed in the upcoming Update 1.

Kind regards,
Peter