A small test with some advection at rendertime (or gridless advection if you will). I start off with a simple pyro sim, and then I take the density field and advect that with the velocity field of the same frame for 8 steps at rendertime, for every frame of the sequence. The result is very detailed since you aren't limited by voxels, and you also get rid of a lot of artifacts related to the same.

For the second example I simply added some curl noise to the velocity field post-sim and wrote that to disk.

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