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For me, volumetrics is working properly in FIRE within C4D, but does not export to the MXS. I get a black render if I attempt to render from within C4D, from the network, or from Studio...

It appears to be working find here, so I will need a bit more detail. Are you able to do something simple, like creating a null, assigning a material, adding a volumetric tag, and rendering?

Huh. I can get it to look right if I take it into Multilight and give it preposterous settings like ISO 10000.
A normal scene, like a simple volumetric null with a single emitter, renders predictably.

Here is a .rar with a C4D+MXS+textures if you get curious, JD
https://dl.dropboxusercontent.com/u/256 ... ection.rar

Not sure yet why this should be a problem, but it appears due to the whole model having been mirrored along the Y axis (everything is scaled [2.495,-2.495,2.495]) at some point. The result is that the normals for the lens meshes end up going off in the wrong direction (in the Maxwell & Studio, but not in Cinema, and somehow, not in FIRE in the plugin). If you just select the lenses and switch the -2.495 to 2.495, it no longer occurs.

The lamp lenses' normals were somehow shooting sideways. Just repaired all the normals and it's all good. Thanks!