Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Bug Reporting => [Max] Resolved Bugs => Topic started by: maru on 2013-09-03, 18:56:23

Title: More lights = more noise?
Post by: maru on 2013-09-03, 18:56:23

I'm not sure if it's a bug. If not, I'd like to know why this happens.

Same settings, bucket rendering, one pass. Same happens in progressive mode.

Also happens with non-ies lights.

Title: Re: More lights = more noise?
Post by: Polymax on 2013-09-03, 19:07:33

It was always like that, and not only with IES. Sampling is divided into many copies of the light sources.

Title: Re: More lights = more noise?
Post by: Ondra on 2013-09-03, 19:24:49

This is perfectly normal, more complicated scene, more noise. When using 3 times more lights you can increase light sampling multiplier by 3 times to get (approximately) same amount of noise at cost of rendertime increase.

Title: Re: More lights = more noise?
Post by: maru on 2013-09-03, 19:26:24

Ok, I somehow never noticed this before. :)

Delete this thread or move somewhere else please.

Title: Re: More lights = more noise?
Post by: Ludvik Koutny on 2013-09-03, 20:07:59

Quote from: maru on 2013-09-03, 19:26:24

Ok, I somehow never noticed this before. :)

Delete this thread or move somewhere else please.

Just to be sure, if you have time, i would compare it with Alpha 4 and Alpha 5...  just to be sure :)