Varjokuuntelija

A fragment shader renderer for prototyping/livecoding. Video

Features

• Auto-reload shader file on changes (via notify)
• Map MIDI CC input to shader uniforms

Usage

Usage: varjokuuntelija [options] FILE

Options:
    -c, --config FILE   configuration file
    -w, --width PIXELS  resolution width
    -h, --height PIXELS resolution height
    -f, --fullscreen INDEX
                        enable full screen mode on display INDEX

MIDI input

Specify MIDI mappings in a configuration file and use --config. The included example configuration (example-config.json) maps CC messages 21/22/23 from channel 1 of MIDI device 0 to the uniforms u_midi_red/green/blue. These are used by example-shader.frag to render a simple RGB mixer.

{
  "midi": {
    "0": {
      "1": {
        "21": "u_midi_red",
        "22": "u_midi_green",
        "23": "u_midi_blue"
      }
    }
  }
}