Vray Edges Tex incompatible with composite map in SSS2?

[Iqbahl]

Is it just me or can we confirm that there's an incompatibility here? I want to add some noise in my bump map that already contains a vray edgestex for beveling sharp edges. So I take my edgestex and put it as a submap in in a map composite. On top of this I add my noise map. With some tweaking I can make this work in a regular Vray material. But so far no luck in a SSS2 material. It seems that having the edgestex map there will eliminate all other maps I put in. Is there any particular compositing mode I should use or any particular order I need to place the maps to make this work?

[Iqbahl]

To nuance this some more. Using a composite of EdgesTex and more maps in SSS2 actually does seem to work in some cases. If I create a simple box from scratch the combination of Vray EdgesTex and other maps work as expected. My problem is that I have to make it work in CAD-data from a client. As far as I can tell the mesh integrity of the cad-objects is ok. And I did a test with a trial version of f-edge. It works as expected and you can stack other maps upon the F-edge bevelling texture. BUT, it seems to crash a lot in Max 2014 X64, so therefore I am hesitant going down that road for the moment.

[tashko.zashev]

Hi,

Can you post a simple scene with one of your models that have problems with EdgeTex/Composite texture added to the SSS2 bump slot?

[Iqbahl]

I attached one of the components extracted. One composite map in the bump slot. The ugly noise bump is just for demonstration. The underlying EdesTex is currently set to 0%. Even if I put it to as little 1% the noise bump on top will disappear in the render.

[tashko.zashev]

Hi,

Thank you for the example.
For some reason the material setup with SSS2/composite/Edgetex doesn't work well with this CAD object.
Can you try to export this object to a OBJ format (default settings) and import it again? After those steps the object was rendered fine here.

Hope this workaround will help you to get the final renderings done.

I will do more tests with your file and if I manage to find anything, will post here.

[Iqbahl]

Confirmed as a workaround. Many thanks!