# Physics Sandbox

Visual demo of the SimVX physics engine.

```{raw} html
<a class="example-run-button" href="../demos/demos_physics_sandbox.html">▶ Run in browser</a>

```

**Tags:** `3d` `physics` `rigid-body`

Demonstrates:
    - Falling cubes under gravity
    - Static ground plane
    - Bouncing spheres with restitution
    - Impulse-driven interaction

Controls:
    SPACE : Spawn a new ball with random impulse
    R     : Reset the scene
    ESC   : Quit

Run with:
    uv run python examples/demos/physics_sandbox.py

## Source

```{literalinclude} ../../examples/demos/physics_sandbox.py
:language: python
:linenos:
```