MaterialID not being passed from proxy

[snivlem]

Hi,

Using maya 2014x64 but an older build from December 17th 2013.

MaterialID doesn't get passed through a V-Ray Proxy.

[vlado]

It is a material property; not sure what it has to do with the proxy itself?

Best regards,
Vlado

[snivlem]

Hi Vlado - certainly, but I'm not sure if it should be passed to the channel or not?

If you have a scene with normal objects and shaders and a few proxies, you can run this:

$shadings = `ls -type shadingEngine`;

for ($each in $shadings)
{
vray addAttributesFromGroup $each vray_material_id 1;
vrayAddAttr $each vrayColorId;
vrayAddAttr $each vrayMaterialId;
setAttr ($each+".vrayColorId") -type double3 (rand (.001,1.000)) (rand (.001,1.000)) (rand (.001,1.000));
}

On this particular scene, every material has been assigned a unique colour but the trees (which are proxies and turn out black). The vraymeshmtlSG and subsequent child SG's for these trees all have unique vrayMaterialId colours on them but it just renders black. materialID using the material mode doesn't work either?

[ivaylo.ivanov]

Yep, it seems the extra attributes of the shading group that the mesh material is connected to, are ignroed. Will check this. It works if you assing them directly to the mesh material itself.