Hello,
New houdini user here.. hope you can help.
I'm trying to use the Arnold utility node to query light levels on an object so i can drive the emission on a standard_volume shader. The utility node with 'color, lambert' into a standard surface seems to work fine but if i try and use a standard_volume and render a volume from my geo through Arnold, the utility node doesn't seem to work.
Am i being naive trying to query light from a volume?
ta
Jam