Adding, or assigning Light Filters are similar to assigning Materials.

1. We need to Create at least one Light Primitive
2. Then create a Filter Library
3. Go inside of Filter LOP
4. Create a Filter you want
5. Go outside of the LOP and Click on Autofill Light Filters to automatically assigning them
6. Then, simply enable Assign to Light and set a light path to the light you want to apply this filter.

NOTE: So far, this is only supported on CPU…

Result using Gobo Filter

While we have, 4 different filter to choose from…Gobo, Barndoor, Projection and Gel.