Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: Monkeybrother on 2017-02-07, 15:48:11

Title: Bump map error
Post by: Monkeybrother on 2017-02-07, 15:48:11

How can I fix this?:

(https://cdn.pbrd.co/images/vv0YFpXJY.jpg)

Left is without bump map, right is with. It doesn't matter what bump amount, as soon as I enable the bump map, this shows up. I've checked that gamma is correct.

Title: Re: Bump map error
Post by: romullus on 2017-02-07, 16:01:25

This is shadow terminator bug. It is well known and should be adressed in upcoming 1.6. Currently the only solution is to increase polygon count by either manually subdividing mesh or by adding displacement. This will make error areas less visible.

https://coronarenderer.freshdesk.com/support/solutions/articles/5000516180-known-bugs-and-limitations

Title: Re: Bump map error
Post by: Monkeybrother on 2017-02-07, 16:05:48

Ah, ok. I did just that, put the bump in the displacement slot instead. Not the prettiest solution, but I guess it'll work until 1.6. Thanks.

Title: Re: Bump map error
Post by: maru on 2017-02-07, 16:13:39

Quote from: Monkeybrother on 2017-02-07, 16:05:48

Ah, ok. I did just that, put the bump in the displacement slot instead. Not the prettiest solution, but I guess it'll work until 1.6. Thanks.

Not a very good solution. You will not get the same detail as when using bump maps, and also may lead to memory overuse.

Title: Re: Bump map error
Post by: Mr.Schorsch on 2017-02-08, 13:41:19

For me, Tuning down the bump intensity from 1.0 to 0.9 helped getting rid of this Problem.