out vec4 sk_FragColor; uniform vec4 colorGreen; bool shouldLoop_bh4(vec4 v) { return v.x < 0.5; } vec4 grow_h4h4(vec4 v) { return v + vec4(0.125); } vec4 main() { for (vec4 color = vec4(0.0625);shouldLoop_bh4(color); color = grow_h4h4(color)) { } return colorGreen; }