Interact

Pause / Step

From the top panel, you can inspect your simulation by pausing it and stepping one frame at a time.

Force

With right mouse, you can interact by adding force within a radius.

Change the direction and strength of that force from the top panel.

Gravity

Toggle Gravity and alter gravity direction from the top panel.

Query

Press Q to query sand at mouse position.

Paste Image As Sand

Drag & Drop an image when in windowed mode, or use image paste button in right panel to select an image to be dropped as sand.

The image will consist of the currently selected draw sand.

Fetch Image As Sand

From the right panel, you can fetch a random image as sand.

The image will consist of the currently selected draw sand.

Explode

From left panel, you can edit explosion settings. Explosion occurs at mouse when you press key L when simulation is not paused.

Select sand which will be your explosion material. Select also force, probability of explosion material and explosion radius.