Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: the ando on 2022-10-24, 09:34:11

Title: corona renderer white dots
Post by: the ando on 2022-10-24, 09:34:11

hi guys,
using corona 8 hotfix 2, i have a major problem, when rendering with hdri as environment ( without sun ) and caustics solver  turned on in the render settings i get lots of white dots in the render, when i turn the caustics solver off the problem disappear
any solutions ? 

Title: Re: corona renderer white dots
Post by: romullus on 2022-10-24, 10:04:57

Could me many things, but it would be helpful to see an example of the issue, before advising what to check first.

Title: Re: corona renderer white dots
Post by: maru on 2022-10-24, 12:56:10

Can you reproduce the same issue with the same scene in Corona 9? A lot of issues were fixed there, so if it's fixed in V9, we can't do anything about V8.

Title: Re: corona renderer white dots
Post by: aaouviz on 2022-10-24, 13:06:10

I'd hate to state the obvious here... but it's just working as expected?

In most cases rendering with caustics causes a LOT of white dot artifacts and takes a long time to be less noisy.

You can try limiting the caustics being generated from only 1 light source and/or exclude many objects from the caustics calculation.

Title: Re: corona renderer white dots
Post by: the ando on 2022-10-25, 09:36:47

the only solution was, for now, is to include only the pool in the caustic solver. it works good now