4 * require_extensions: GL_ARB_shading_language_420pack
9 #extension GL_ARB_shading_language_420pack: enable
12 // Illegal since b is a 3-element vector, but 4 elements given as initializer
13 vec3 b = { 1.0, 2.0, 3.0, 4.0 };
14 gl_FragColor = vec4(1.0);