//void glClipPlane (GLenum plane, const float64 *equation) func ClipPlane(plane GLenum, equation *float64) { C.glClipPlane(C.GLenum(plane), (*C.GLdouble)(equation)) }
//void glClipPlane (GLenum plane, const float64 *equation) func ClipPlane(plane GLenum, equation []float64) { C.glClipPlane(C.GLenum(plane), (*C.GLdouble)(&equation[0])) }