4 * require_extensions: GL_ARB_shading_language_420pack
9 #extension GL_ARB_shading_language_420pack: enable
12 // Illegal since c is a 3-column matrix, but 2 columns given as initializer
13 mat3x3 c = { vec3(0.0), vec3(1.0) };
14 gl_FragColor = vec4(1.0);