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vray ies - lighting artifact
show user profile  mike_renouf
Hi all,

I've got some lighting artifacts which are appearing in the irradiance map, and I can't get rid of them without setting the irradiance map to stupidly high settings:

The scene is very simple - texture for the ceiling grid and light fitting, and a vray ies light set a millimetre or two below the ceiling plane.

I think the problem is that the ies light is too close to the geometry. Can you suggest a solution?

This is a very common set up for the renders I produce, so if I need to change the way I set up lights and ceilings I'd happily do so.

Many thanks,

Lighting artefact photo lighting artefact.jpg

read 420 times
7/7/2016 10:00:56 AM (last edit: 7/7/2016 10:00:56 AM)
show user profile  herfst1
Have you tried knocking the clr. thres down? I think that's what it's called (it's on the top-right of the irradiance tab).
read 392 times
7/7/2016 12:24:39 PM (last edit: 7/7/2016 12:24:39 PM)
show user profile  mike_renouf
Thanks Herfst,

With a small increase of max rate quality (change from -3 to -2), and reduction of the color threshold from 0.4 down to 0.1, that cleaned it up without a huge render time increase.

Much appreciated!

read 386 times
7/7/2016 2:56:37 PM (last edit: 7/7/2016 2:56:37 PM)
show user profile  herfst1
Fuck yeah, I'm like a vray pro.
read 381 times
7/7/2016 3:35:06 PM (last edit: 7/7/2016 3:35:06 PM)
show user profile  3Ddeath
Nice to know I have a place to go to for all my vray needs :)

Portfolio Site
read 369 times
7/7/2016 7:38:08 PM (last edit: 7/7/2016 7:38:08 PM)
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