# Custom Shader

ShaderMaterial API preview with animated uniforms.

```{raw} html
<span class="example-docs-badge">📄 Docs only</span>

```

**Tags:** `3d`

Demonstrates:
  - ShaderMaterial with inline GLSL vertex and fragment source
  - Per-frame uniform animation (time, amplitude, colour)
  - Multiple objects with different shader parameters
  - Standard Material objects alongside custom shaders

Controls:
    A / D       - Orbit camera
    W / S       - Zoom in / out
    1 / 2       - Adjust wave amplitude
    Escape      - Quit

Usage:
    uv run python examples/features/3d/custom_shader.py

## Source

```{literalinclude} ../../examples/features/3d/custom_shader.py
:language: python
:linenos:
```