Vertex Normals Problem

Corona Corona for 3ds Max Issues
1

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

viewport.JPG
viewport.JPG904×678 23.8 KB

corona.jpg
corona.jpg1600×1200 94.7 KB

v-ray.jpg
v-ray.jpg1600×1200 160 KB

2

Moving the topic to bug reporting board.

It probably would help to upload offending mesh to private uploader for Team to investigate.

3

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

Thanks

4

Thanks, we’ll look into this.

5

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)

6

Thanks guys, I’m gonna try here.

Thank you for the support.