// 3-tone palette: black / hot pink / cyan vec3 black = vec3(0.0); vec3 pink = vec3(1.0, 0.2, 0.8); vec3 cyan = vec3(0.2, 0.9, 1.0);
gl_FragColor = vec4(col, 1.0); // sflp vertex: no camera, no matrix, just NDC quad attribute vec2 position; varying vec2 uv; void main() uv = position * 0.5 + 0.5; // (0..1) if position is -1..1 gl_Position = vec4(position, 0.0, 1.0); sflp shaders
// scanline grit (fake low-res) col *= 0.9 + 0.2 * sin(gl_FragCoord.y * 2.0); // 3-tone palette: black / hot pink /
// boolean edge detection via fwidth (fast derivative) float edge = smoothstep(0.0, fwidth(d), abs(d)); vec3 pink = vec3(1.0