multiple map channels in ply2vrmesh?

[galakgorr]

I've been playing around with converting .bgeo from Houdini to .vrmesh using ply2vrmesh and I absolutely love it so far; it's saving me a ton of time. However, my Houdini guy just told me that I need to find a way to export multiple UV sets. I can export them as vector color channels, but then I can't quite figure out a way to use that data via VRayVertexColors to drive texture placement. Is there any kind of workaround? Maybe I could read in textures using OSL?

Alternatively, is there a way to use vertex colors on a proxy to act as masks in a layered texture? For example, could I use an arbitrary float attribute to drive the blending of color maps in a texture?

[vlado]

V-Ray will try to preserve as many attributes from the .bgeo and .geo file as possible as vertex color sets. You can use the -info option of ply2vrmesh to see the names of these sets. Then you can add V-Ray attributes to a 2D placement or 3D placement node in Maya and specify a name of a color set that you want to derive the UVs from for that particular texture.

Best regards,
Vlado

[galakgorr]

Thanks for the reply, Vlado!

I was able to use the V-Ray attribute to change the UV set, which is fantastic. However, I have another question... it seems that ply2vrmesh or the proxy loader is renaming my vertex channels from "uv1," "uv2" to "uvmap1," "uvmap2," etc. Is there a way to preserve my original channel names? It would make automation a little easier.

Thank you!

[asen.atanasov]

Can you please send us a simple example with multiple uv sets, to see what can be done.

Best regards,
Asen

[asen.atanasov]

The uv set names should be preserved in tomorrow's nightly. I tested only with files with one uv set. Please check if everything is fine.

Best regards,
Asen

[galakgorr]

I don't currently have access to nightly builds. Who can I contact for a link?

Thanks so much for patching this!
H

[vlado]

Email me to vlado@chaosgroup.com and I'll arrange that.

Best regards,
Vlado