Help with VrayEdgeTex and Bitmap

[jujubee]

I've done this before but I'm not positive if Vray has changed. Wasn't there any easy way to combine a VrayEdgeTex with a bitmap underneath? It's driving me crazy...

[stef.thomas]

I've done this before but I'm not positive if Vray has changed. Wasn't there any easy way to combine a VrayEdgeTex with a bitmap underneath? It's driving me crazy...

Use a VrayCompTex map with your VrayEdgeTex either added or multiplied over the top of your bitmap. Or use the VrayEdgeTex map as the mask in a mix map between your bitmap and a VrayColor map.

[jujubee]

Thanks.

I just figured out another way - Blendmtl with a Vrayedgestex on a coat then duplicate it to the coat material's opacity channel. Turn the blend value to 100% white.

I just recall that there was some other way which I was doing this - wasn't there a Vrayshellac material at one point or is that just my imagination??? It's been a while...

[percydaman]

there has never been a vrayshellac material to my knowledge. Especially since shellac is not physically correct. Though you can toggle the additive mode in the vrayblendmtl for what I guess is the same effect.

[3DMK]

Use a VrayCompTex map with your VrayEdgeTex either added or multiplied over the top of your bitmap. Or use the VrayEdgeTex map as the mask in a mix map between your bitmap and a VrayColor map.

I haven't tested the difference in render time between using a mix map or blend material [jujubee], although I would suggest blend material is slower as it has to calculate 2 materials instead of one.

[jujubee]

I just sort of recall an "easier" way of doing it at one point - wireframe on top of JPG. But it's escaping me - my memory has never been that good... Thanks for the replies guys.

[glorybound]

Use a VrayCompTex map with your VrayEdgeTex either added or multiplied over the top of your bitmap. Or use the VrayEdgeTex map as the mask in a mix map between your bitmap and a VrayColor map.

When I try this method it changes my vraycolor material. Any suggestions?

[stef.thomas]

When I try this method it changes my vraycolor material. Any suggestions?

Sorry, just tried that and it's a little more complex than I thought. Setup your material with a VRayCompTex map in the diffuse slot. Within the VRayCompTex map put your bitmap in Source A and a VRayEdgesTex map in Source B. Make the colour swatch within your VRayEdgesTex map white and set the Operator in the VRayCompTex map to Subtract.

Now go back up a level to your main material and you can control the colour of the lines using the diffuse colour swatch.

[glorybound]

comptex

Thanks. Adding the vrayedgetext in my bump slot accomplish the effect I needed, but I'll know how to do it the other way now if needed.

[glorybound]

VRayEdgesTex

Sorry, just tried that and it's a little more complex than I thought. Setup your material with a VRayCompTex map in the diffuse slot. Within the VRayCompTex map put your bitmap in Source A and a VRayEdgesTex map in Source B. Make the colour swatch within your VRayEdgesTex map white and set the Operator in the VRayCompTex map to Subtract.

Now go back up a level to your main material and you can control the colour of the lines using the diffuse colour swatch.

Worked like a charm, thanks.