Hello

I'm thinking of using elevatuors(using the GLU NURBS) for enviorment mapping for my game.

My first question is, are evaluators good for level mapping?

And what exactly are knots and how do they work?

And my last question:

If I have an array of control points which looks like this:

GLfloat ctrlpoints[4][4][3];

So I have an (x,y,z) value for each u and v.

Why does ustride = 12 and vstride 3 instead of 12?

Because stride is ucount * pointcount(in example (x, y,z) is 3) right?

I hope anyone could help me with this rather stupid questions.

Thanx in advance,

Hylke