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Technical Artist Alexandre Spindler has released an informative breakdown that explains how the artist managed to create an amazing and physically-correct smoke system using Unreal Engine. In this breakdown, the artist demonstrated the workflow in Unreal's Blueprints to make a pool of spheres to set up smoke behavior, shared the Material nodes used to create the system, explained how the system was optimized, and broke down its parameters.
What's more, the author shared the project's files that you can download for free. The package includes the blueprint of the smoke system, textures, and 16 parameters to make the smoke look how you want it. You can download the files here or by visiting Alexandre's Twitter page.
And here's the breakdown:
Add fully procedural dirt and filth to any material for a fast and beautiful result that is easily customised.