7 // From section 3.7 (Identifiers) of the GLSL 1.50 spec:
9 // Identifiers starting with "gl_" are reserved for use by OpenGL
10 // and may not be declared in a shader as either a variable or a
13 // Consequently, an interface block array may not contain a name
14 // starting with "gl_".
19 vec4 gl_ProsciuttoHoagie;