/// 4 components vector of high single-qualifier floating-point numbers. /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 ...
/// 4 components vector of high double-qualifier floating-point numbers. /// There is no guarantee on the actual qualifier. /// @see <a href="http://www.opengl.org ...