Vray TOON render - issue with lines and transparency

I’m experiencing an issue with the Vray Toon material when used in conjunction with transparency. See image below:

The edge lines DO continue in the same object when viewed through a transparent Toon base material, but the lines vanish when that same line is from another object.

Also, the edge lines see to “double” when viewed through the transparent material.

Anyone has the same issue. Is this a Toon bug? Anyway around it?

Since in GPU mode the toon mode isn’t available I use a stable workaround which should also fix your issue: extract curves from the edges and apply a Rhino curve piping. Use a black emissive material and you should get nice clean rendered curves.


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