I figured out that Vampyre is actually D2010 compatible...

I have a question regarding rendering a quad in OGL 3.0. Let's say I have a quad like this:
[code=delphi]
glVertex3f(x, y, z);
glVertex3f(x, y - pCharacter^.dy, z);
glVertex3f(x + pCharacter^.dx, y - pCharacter^.dy, z);
glVertex3f(x + pCharacter^.dx, y, z);
[/code]
Since quads are deprecated in OGL 3.0, I need to convert it to two triangles. How do I do that?