Corona AO Geometry issue

Corona Corona for 3ds Max Help Required
1

I have been working with Corona for a while now and usually I was able to solve most of the problems by searching the forum or trying things myself, but now I have an issue I do not understand.

I want to use CoronaAO to combine two materials. I used “Invert normals”, to get some kind of used edges-look. As soon as I touch the Color spread option to get a more defined look, the AO starts appearing on literally every edge of the mesh. It also stays that way when using a texture in the Max distance slot. The geometry is low-poly with a Turbosmooth. I attached a clean test-scene render and even there it is visible. What am I missing? Is it normal that Color spread causes this effect or is there any way to get rid of it?

render.jpg
render.jpg1600×1131 320 KB

values.JPG
values.JPG355×396 23.6 KB

2

I think currently this is by design. It would probably require some kind of “bias” to get rid of this effect…

3

That’s what I thougt too and when I did not find any “bias” option, I made this post.
A way to get this working might be an addtional mask by vertex painting, but I would have found it more convinient to just let AO do its thing.

5

Aw man, I do feel stupid now. Of course it is Ray directionality, somehow I overlooked it. As soon as I enter something larger than 0,2 it works as it should. Thank you!