1void main() { 2 int x = 0; 3 int y = 0; 4 int z = 0; 5 if (sk_Caps.externalTextureSupport) x = 1; 6 if (sk_Caps.fbFetchSupport) y = 1; 7 if (sk_Caps.canUseAnyFunctionInShader) z = 1; 8 sk_FragColor.rgb = half3(x, y, z); 9} 10