Crafted simple cloud (fluids, 3D container, removed emitter). Preset to cloudBank. Other settings let alone. Viewpoint/persp shows cloud formation, Arnold IPR renders everything except cloud w/GPU enabled. CPU enabled renders everything (very slowly of course :)). Using latest Maya 2025 and newest Arnold version
Edit: I did some re-tests and actually with blanco preferences as well. Found one error message I feel is related (below). Dunno what to do with such tho. Added additional screencap of situation.
While rendering/IPR throws message:
[gpu] Could not find GPU data for shader (MayaFluid) /fluid1/fluidShape1/shader, reverting to default shader
Added additional screencap of such.
Yeah, MayaFluid is basically a custom shader provided by MtoA.
Arnold GPU works only with built-in shaders that come with Arnold itself.
I haven't used Maya Fluids in a long time, so I had to take a look.
There's no way to get it to work. Not only is there the MayaFluid shader, but there's also a custom MayaFluidData procedural. Neither of those are supported by Arnold GPU.
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