"// NB we must use single, not GLfloat, for arrays accessed by glXXXfv routines
// because GLfloat is defined (as a compiler workaround) in Toolbox gl.Incl as DOUBLE.
// GLfloat arrays do not work properly :-("

Is this GLFloat thing fixed in FB5/ FBtoC to properly reflect something we can now used and call asGLFloat?
 
rc