Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Bug Reporting => [Max] Resolved Bugs => Topic started by: telemix on 2015-09-25, 10:11:48

Title: CoronaMtl Self illumination Multiplier
Post by: telemix on 2015-09-25, 10:11:48

Self illumination Multiplier does not increase the brightness in CoronaMtl. But, it works correctly in the CoronaLihtMtl.

It's Self illumination Multiplier issue? Or automatic multiplier threshold in CoronaMtl?

Title: Re: CoronaMtl Self illumination Multiplier
Post by: maru on 2015-09-25, 10:19:52

Hi, this comparison does not make sense as self illumination and light intensity are two completely different things.

You should never use self illumination as a main light source for your scene.

Please see this article:
https://coronarenderer.freshdesk.com/support/solutions/articles/5000515603

The reason why self illumination produces darker result, is because it is clamped by max sample intensity.
MSI: https://coronarenderer.freshdesk.com/support/solutions/articles/5000515636

You should get identical results if you set MSI to 0, but both setting MSI to 0 an using self illumination for strong light is not correct.

Title: Re: CoronaMtl Self illumination Multiplier
Post by: telemix on 2015-09-25, 10:24:05

Thanks!