#!/usr/bin/env bash
# Usage: treppe-run.sh <shader.glsl> [brightness 0-100, default 100]
set -euo pipefail
here=$(dirname "$(realpath "$0")")
[ $# -ge 1 ] || { echo "usage: $0 <shader.glsl> [brightness 0-100]" >&2; exit 2; }
shader=$(realpath "$1")
cd "$here"
exec nix-shell --run "python treppe_gl.py '$shader' --brightness ${2:-100}"