Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Bug Reporting => Topic started by: arielalencar on 2018-06-01, 16:34:01

Title: Vertex Normals Problem
Post by: arielalencar on 2018-06-01, 16:34:01

Hey guys, I'm having a problem with vertex normals, in the viewport it's shown correctly, but when I render, Corona seems to 'averege smooth' everything.

I've exported this model from Blender in .dae (OpenCollada).

I've tried exporting in .obj, and Corona rendered it correctly, but thru .obj I lose all the Vertex Color information, and I don't wanna lose it.

In V-Ray I didn't had this problem.

Thanks

Title: Re: Vertex Normals Problem
Post by: romullus on 2018-06-01, 16:55:36

Moving the topic to bug reporting board.

It probably would help to upload offending mesh to private uploader (https://corona-renderer.com/upload) for Team to investigate.

Title: Re: Vertex Normals Problem
Post by: arielalencar on 2018-06-01, 18:39:41

Uploaded, filename: 1527871067_Vexter-Normal-Problem.rar

Thanks

Title: Re: Vertex Normals Problem
Post by: maru on 2018-06-04, 15:28:49

Thanks, we'll look into this.

Title: Re: Vertex Normals Problem
Post by: martinsik on 2018-06-06, 10:57:27

This issue is caused by shadow terminators handling. Unfortunately, this is very difficult to fix.
So until we fix this issue, you can try to remove the problem by playing with terminator settings in Render Settings->Performance->Development/Experimental Stuff->Terminator handling.
I recommend increasing shadow shift value closer to 1 (default is 0)

Title: Re: Vertex Normals Problem
Post by: arielalencar on 2018-06-06, 13:50:07

Thanks guys, I'm gonna try here.

Thank you for the support.