Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Bug Reporting => Topic started by: mrww8888 on 2025-04-06, 17:44:00

Title: HDRI sunlight causes unusual render results
Post by: mrww8888 on 2025-04-06, 17:44:00

When using HDRI for key lighting, sunlight doesn't work well with reflect glossiness.
Software version is 12.1

Render image is here -> https://drive.google.com/file/d/12albta9L37br6NgDlNyh3CV7cItk704A/view (https://drive.google.com/file/d/12albta9L37br6NgDlNyh3CV7cItk704A/view)

Source Max File(2022) is here -> https://drive.google.com/file/d/1gJXxRrNykQrWviab0hBcF7Pp-f2ifJxi/view?usp=drive_link (https://drive.google.com/file/d/1gJXxRrNykQrWviab0hBcF7Pp-f2ifJxi/view?usp=drive_link)

Title: Re: HDRI sunlight causes unusual render results
Post by: romullus on 2025-04-06, 20:33:56

I think it's so called black highlights issue, a well known limitation of Corona light transport. You can read about it and possibly find workaround in this article: https://support.chaos.com/hc/en-us/articles/4528311915025-Known-bugs-and-limitations