Clip a Maya fluid in 3D?

Can anyone suggest a way to clip a Maya fluid in 3D?

It appears the Clipper feature doesn’t work with fluids?

I have a fluid being emitted at a planar surface. I want to render the fluid as a separate pass but this is resulting in some parts of the fluid that should be occluded by the surface becoming visible. It’s not possible to use the surface’s alpha as a matte, as the rest of the fluid is in front of it.

I could possibly do a matte pass with the fluid converted to geo, which I could then use a Clipper on (in theory), then use its alpha in comp. But this seems like a convoluted hack. Ideally I’m looking for a solution like the Clipper that works with fluids in 3D. Anyone?

The VRayClipper should work if you convert the Maya fluid to polygons (Modify > Convert > Fluid to Polygons).