Chaos Corona Forum

Chaos Corona for Cinema 4D => [C4D] Daily Builds => Topic started by: Beck on 2022-04-01, 13:57:00

Title: Problem with corona normal maps
Post by: Beck on 2022-04-01, 13:57:00

Hello

There seems to be something wrong with corona normal map shader in new versions of corona render.

My simple Test:
If I apply a normalmap to a corona standard physical material (bumpchannel->corona normal)  the edges of a rounded cube are visible. The Materialpreview is also distorted.
See screenshot 100%

The same happens with a Material from the Cosmosbrowser. See attached screenshots.(Cosmos_Material01+02)

This did not happen in earlier versions where i set the value to 100%.
The color profile of the normalmap is set to linear.

Can you please test this?

iMac2019 / OSX 11.6.5 BigSur / C4D R25.117

Title: Re: Problem with corona normal maps
Post by: Beanzvision on 2022-04-01, 14:35:42

Hi, thanks for the heads up. We will look into this further.
(Internal ID=872452906)

Title: Re: Problem with corona normal maps
Post by: Beck on 2022-04-11, 12:08:27

There has nothing changed in RC4, still the same problem wiith corona normalmap.
As soon as i apply a normalmap, even the previewpicture in the materialeditor looks distorted and the render looks wrong.

edit:
Found out that if i first choose corona bitmap under corona normalmap and then put in a normalmap (jpg) it works ok.
Do i always have to choose corona bitmap for any map i want to use?  That was not the case in earlier versions.

edit2:
all assets in my projects that use corona normalmap are rendered wrong now and have strange distorted preview in the materialmanager

Title: Re: Problem with corona normal maps
Post by: luis.lab on 2022-04-12, 14:35:38

I have exactly the same problem in the latest 2 releases

Title: Re: Problem with corona normal maps
Post by: Core2000 on 2022-04-12, 16:23:49

We can confirm this problems also with the last full releases. For one project we must change to arnold render because of this issue.

Title: Re: Problem with corona normal maps
Post by: tiagosaraivacg on 2022-04-13, 17:11:54

I find the problem is related to the uvw randomizer.. what i did to "fix" was to change the order.. normal>uvwrandomizer>triplanar

But still, don't work flawless has it should.

Title: Re: Problem with corona normal maps
Post by: Beanzvision on 2022-04-14, 12:14:18

Can you guys also try this with V8 and let us know the outcome?

Title: Re: Problem with corona normal maps
Post by: Beck on 2022-04-14, 15:43:15

I just repeated my simple test with a cube and a corona normalmap and it works as it should so far now. Thank you!
Test with official V8

Title: Re: Problem with corona normal maps
Post by: Beanzvision on 2022-04-15, 11:29:37

Hi Beck,

Thanks for testing and letting us know. :)