7 // Section 4.3.8(Layout Qualifiers) of the GLSL 1.50 spec says:
8 // "The tokens in any layout-qualifier-id-list are identifiers, not keywords.
9 // Generally, they can be listed in any order. Order-dependent meanings exist
10 // only if explicitly called out below. Similarly, these identifiers are not
11 // case sensitive, unless explicitly noted otherwise."
15 layout(pixel_center_integer, origin_upper_left) in vec4 gl_FragCoord;
16 layout(origin_upper_left, pixel_center_integer) in vec4 gl_FragCoord;
20 gl_FragColor = vec4(0., 1., 0., 1.);