reverse smoke
For this animation I rendered a blender smoke simulation and reverted the frames before combining them to a video to make it look like the smoke gets sucked back into the deformed cube
you can download the blend file here
See also:
smoke density selection
cycles ink drop
dissolving smoke
purple smoke
Texture forcefield experiment 10 - smoke curl
cycles ink drop
dissolving smoke
purple smoke
Texture forcefield experiment 10 - smoke curl