Author Topic: IES light source radius / rendertime?  (Read 1720 times)

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Online RRIS

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  • Renze Rispens - industrial designer
IES light source radius / rendertime?
« on: August 22, 2018, 02:27:53 am »
Hi all, I'm currently going through a queue of several interior renders and I'm noticing a few renders where the IES lights cast harsh shadows. I just found out that the IES light radius does affect shadow sharpness and now I'm wondering if it's doable to re-render some of my work.
I don't have much time to experiment though, so I'm asking here.. does the light radius affect render times a lot? I have scenes with 12 or more IES lights and can't really afford render times to suddenly triple or something.

Online RRIS

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  • Renze Rispens - industrial designer
Re: IES light source radius / rendertime?
« Reply #1 on: August 22, 2018, 07:19:32 am »
Btw, is there a limit on the number of (IES) light sources in a scene? I just cloned a few lights and one of them just wouldn't turn on, unless I deleted a different light...

Offline KeyShot

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Re: IES light source radius / rendertime?
« Reply #2 on: August 23, 2018, 04:52:48 pm »
There is no limit on the number of lights you can have in a scene. Does it matter if you use product or interior mode? If the problem persists please contact [email protected] or post your scene here, so we can investigate the issue you are seeing.