ghostty-shader-adventures

Custom fragment shaders for Ghostty terminal. Post-processing effects that run on every frame, transforming terminal output on the GPU.

All shaders use colors from the Human++ palette — swap out the color constants to match your own theme.

Shaders

splatter

Fractal paint splatters, cursor paintbrush.

See also splatter-original.glsl for a static non-interactive version.

clouds

Parallax FBM clouds.

hexglitch

Hex Moire interference + CRT glitch.

electric

Typing-reactive electric arcs (set and enjoy).

electric-modes

Three-mode electric arcs via cursor color.

cursor-glitch

Cursor-localized digital interference. Stackable — layer on any base shader, zero cost when idle.

Usage

In your Ghostty config:

custom-shader = /path/to/ghostty-shader-adventures/shaders/splatter.glsl
custom-shader-animation = true

Shaders can be stacked — each shader's output feeds into the next as iChannel0:

custom-shader = /path/to/shaders/hexglitch.glsl
custom-shader = /path/to/shaders/cursor-glitch.glsl

Cursor interactivity works in standard shell sessions and some TUI apps but not all (e.g. Claude Code uses alternate screen handling that doesn't update cursor uniforms).

Reference

See GHOSTTY_SHADERS.md for the full shader authoring reference — available uniforms, coordinate system, stacking details, and Shadertoy porting notes.