VRay IES Problem

V-Ray for 3ds Max V-Ray for 3ds Max :: Issues
1

Hello,
I cannot get a linear distribution on my VRay IES light. If I check the “use light shape” box this is the result I get. If you look at the lower part of the image you can see a definite hotspot. When I use the same IES file with the photometric light I get a linear light shape and distribution. The vray ies is soooooo much faster. Is there something I am doing wrong?

IESDIST.jpg
IESDIST.jpg1800×1800 201 KB

2

V-Ray will only use the light shape for shadows, not for the light distribution. It would be best to use a rectangle or mesh V-Ray light for this.

Best regards,
Vlado

3

Thanks for the tip :wink: I wil give that a try.

4

Np, I’ll make a note to expand the “Use light shape” option to specify if shadows only should be affected, or shadows and light.

Best regards,
Vlado

5

Great! Those render times are a killer with the potometric IES. vray +1 4life