132001f49Smrgvoid main() { 232001f49Smrg float sum = 0.0; 332001f49Smrg while (sum < 0.499999) { 432001f49Smrg sum += 0.1; 532001f49Smrg } 632001f49Smrg gl_FragColor = vec4(sum); 732001f49Smrg} 8