how bad is your CPU? your file sims in about 5 seconds a frame on my macbook
but, the slowness is down to how you’re essentially replicating the whole wind tunnel in POPs and then feeding that into pyro. Much faster to do what Matt did, just emit density into it and let wind do it’s job.
Couple things in general; * use the top level wind, it’s a simplified one compared to gaswind, so it’s faster (also you plugged gas wind into advection instead of force) * up the clamp level for dissipation from the awful default of 0.005 to something like 0.04, unless you render with density at 0.01 you’d never see those voxels, it’s a terrible default * use the voxel res calc tool I made for that SYD HUG presentation, then you know exactly what res to sim at for the given camera, distance, and render res * if you need uber fine density fidelity look to use the velocity scale multiplier to sim vel at a lower res than density, it will save you a lot of sim time.
