Evan Robinson

Thanks again!

freshbaked
Add a density attribute/value to your geo and it will work fine.

Thanks! That was it. Unfortunately it only seems to work with cpu (not xpu). But at least its working now. Thanks again.

ObeidaZakzak
Hello,

Karma Uniform Volume Material is a preset around Karma Pyro Shader VOP, which expects a volume with fields like density, temperature, flame and scatter.

If you want to render a mesh as a uniform volume, you need to set a Uniform Volume property, either from Karma Material Properties VOP or from a Render Geometry Settings LOP, and use a Karma Volume VOP as a material.

Did you see the docs I posted? It says its for "rendering uniform constant volumes". Also, the preset automatically sets the uniform volume property. So it was intended for geometry, not volumes.

also did you see how I got the karma pyro shader working with the geo in my video? I just had to change a few things.

The uniform volume preset is a wrapper around the karma volume (which can be used for uniform volumes)

I wonder if this is just a bug?

(thanks for the reply)