Smoke
Interactive Ground Fog

Click: push · Shift-drag: stir · Drag: orbit · Wheel: zoom
PreviewStarting
Scrub to rewind and pause. Press Play to continue.
Click to push · Shift-drag to stir · Focus the view, then WASD / arrows to move the pillar.
Approximate flow. Terrain and pillar are preview helpers and are not included in the download. Scrubbing returns to the fixed demonstration.
Shaders used
ShaderMaterial · Custom GLSLSelect a shader to see what it does.