I'm preparing a satin metal, I find this tread:
https://forum.corona-renderer.com/index.php/topic,3527.0.htmlon resolved bug.
Using about the same material showed in that tread (with or without a map for anisotropy), I still have bad results.
In the captured video image, you can see a quick set with some primitive and a modeled sink.
In the primitive geometry, you can see a problem on the top of the chamfered box. Just on the top and bottom faces. If I remove any smooth group from top faces (the box is divided 3x3x3) the problem disappears.
The material seems to work ok on the other primitive.
Same story in the sink, all around the borders it create a "false edge". I've tried to change the geometry, to simplify or to increase subdivision, to change smoothing group, to add a a smooth modifier, to remove all smoothing group, but none has changed. I mean, the problem still remains.
I attach also the sink without anisotropy, the geometry works fine. And the box with top faces removed from smooth group.
Is it me? Any suggest?
Thx.