Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: steevenberube@gmail.com on 2022-04-28, 17:57:04

Title: strange reflection, dark material on curved surfaces
Post by: steevenberube@gmail.com on 2022-04-28, 17:57:04

Hi,

I get this strange dark reflection on the table. It does the same on the chair and whatever material i use. It does the same on a new cylinder created with Max. Can you help ?
Corona 8
Max 2018
(http://)

Title: Re: strange reflection, dark material on curved surfaces
Post by: maru on 2022-04-28, 18:05:13

It is the "black highlights" issue listed here: https://support.chaos.com/hc/en-us/articles/4528311915025-Known-bugs-and-limitations

It is usually caused by:
- a Corona Light Material with "emit light" option disabled
- objects with "visible in reflections" disabled, or similar unphysical properties

The safest solution is to restrain from using unphysical effects like the above.

Title: Re: strange reflection, dark material on curved surfaces
Post by: steevenberube@gmail.com on 2022-04-28, 20:19:52

Thanks, found it!

I had an object with > object properties > visibility > 0.5