# Excluding material from light

**URL:** <https://discourse.mcneel.com/t/excluding-material-from-light/46312>\
**Category:** V-Ray\
**Tags:** rendering, light, vray\
**Created:** [August 3, 2017, 6:53pm UTC](https://discourse.mcneel.com/t/excluding-material-from-light/46312 "2017-08-03T18:53:49Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![paul\_jefferson](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/paul_jefferson/32/64916_2.png) [@paul\_jefferson](https://discourse.mcneel.com/u/paul_jefferson)\
**Post date:** [August 3, 2017, 6:53pm UTC](https://discourse.mcneel.com/t/excluding-material-from-light/46312/1 "2017-08-03T18:53:49Z")

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is it possible to exclude a material from affecting by a light? (in my case a refractive material)  
apparently, there is an option on 3dmax for doing such a thing, can i do that on vray 3 for rhino?

thanks in advance for any suggestion