HI, I'm using Houdini 11. I associated the Fluid_Fire and/or the Basic_Flame materials on a simple cube object and they will not render - Black mplay viewer. I then tried a basic blue shader and all is ok. These materials used to be pretty easy to use.

I sometimes get the message “cam1 OP_Parameters::evalIntT(): Invalid parameter name trange”. not sure what this means

Any help welcome