Hi,

I'm working with Pyro smoke with both the fireball and billowy smoke shaders. The shaders allow some nice lighting and color controls among other things. Particularly with fireball, I can create ramps with the precise colors I want by setting the temperature field to density as I am making more smoke like creations rather than fire.

My issue is in getting the pyro to be affected by lights in a predictable way. I went in and turned low and then off all intensity type parameters which were lighting the pyro up, to try and create a back light and other scene lights to affect the pyro, but the scene lights seem to have no affect at all using spotlights. I tried increasing density in the shader, but no matter what I have done thus far, the lighting does not have much affect on pyro. I want to be able to rim light it and create different looks. For example, I want light to hit the top portion of the smoke, and for the rest to fall into shadows, but I can't seem to get that to work.

Any ideas?

Thanks,

Adnan