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Volume Particle Render Question


mnordenstam

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Hello Houdini gurus,

I'm trying to get a flamethrower effect going, using Houdini Apprentice. I have the basic particle simulation working, but now I want to render it. If I use metaballs and the fog shader, I get billowing fog but all my particle colors get discarded.

What I want is for the volume render to use only the particle colors, NOT take into account diffuse lighting or anything. Basically, the density should come from particle density and the colors being interpolated by neighboring particles.

Can I achieve this by changing the parameters in a fog shader? Metaball SOP? if so, where/what parameter?

Or should I use the point cloud thing everyone's talking about?

Maybe I need to write my own VEX or VOP, if so could someone point me in the right direction(s)?

I realize I'm asking a lot here but this has to be a FAQ so hopefully someone will take pity... :)

I have attached my (non-commercial) hip file.

thanks

markus

flamethrower.1.zip

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