I turned the cig smoke into a volume from the lines from last time and I also added a shader to more properly evaluate the shape of the cig smoke. Right now I think the noise of the initial pyro sim, that drives the secondary cig smoke sim, is a bit to consistent. I may also add an additional advection step to the cig smoke volume after the line have been rasterize to try and smooth out the shapes and give greater variation in density.
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