photometric lights and vray performance

[Janosik]

hi got this problem when i do in scene max photometric lights performance of LC is terrible , for some reason i cant use vrays ones coz do some bad things on the wall ( ies data is ok ) how i can setup renderer to manage good performance ?

[thablanch]

Vray IES sould have the same result on your wall than regular IES, but just render faster.
To improve Max's ies rendertime, you can turn down the light subdivisions, or use a shadow map instead of Vray shadows.