Volume Procedural's, point instancing, and attribute overides prob

[enezzed]

Hello All,

Im doing some standard rocket trail type stuff and am using the Volume Procedural calling a cvex vop, to instances approach. Im using a material SOP with a bunch of overrides to vary and animate the various noise parameters over time. It seems i have to use the "Full point instancing" method to get this to work properly. Unfortunately it makes writing out my ifd's incredibly slow. Is there some other way to pass attributes to the cvex vop so that i can use "Fast point instancing", or perhaps some other method to speed up ifd generation? Any help is greatly appreciated.

Thanks

Charles

[DanBode]

You might be able to get this to work with material overrides if you move everything you're doing in cvex, into your volume shader, and just instance a volume that has a constant density of 1. Then in your volume shader, ignore the incoming density and use the same code you were using in cvex to create the density you use for shading.