~mstoeckl/shaderbg

A live wallpaper program for Sway and other compositors with wlr-layer-shell support
7d37123c — Manuel Stoeckl 10 days ago
Fix crash when new output added
b4b9b132 — Manuel Stoeckl 19 days ago
Add license file
3d614ca8 — Manuel Stoeckl 19 days ago
Add README and example shaders

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https://git.sr.ht/~mstoeckl/shaderbg
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#shaderbg

This program lets you render shaders as a wall paper.[0] It works on Wayland compositors that support wlr-layer-shell.

[0] This program was inspired by, has a similar command line interface as, glpaper.

#Usage

shaderbg [-h|--fps F|--layer l] output-name shader.frag

The parameter layer should be one of 'background', 'bottom', 'top', 'overlay'.

shaderbg provides two uniforms to the fragment shader: float time, measured in seconds since the program started; and vec2 resolution, the current frame size in pixels.

output-name should be either the name of an output (on Sway, these can be determined using swaymsg -t get_outputs) or the value * to match any output. To prevent the shell from expanding the * symbol, write shaderbg '*' shader.frag.

A few example shaders are provided in the demo/ folder.

#Installation

Build with meson. Requires EGL, OpenGL, and wayland.