Orthographic Projection Matrix

[yoshi]

How can I get an orthographic projection matrix with which to set the camera transform?

I've looked up how this matrix works in directx and OGL but I am confused as to how this translates into CS.

Thanks.

[jorrit]

Can you tell me what you want to do exactly?

Greetings,

[yoshi]

I am looking to render quads (used for a GUI) orthographically into the view after drawing the 3d, non-GUI scene.  I want to do this to avoid perspective distortion and to preserve the fidelity of the GUI textures.

Basically, I haven't been able to successfully set the camera transform to do an orthographic projection.  In DX there was a function to set one up in D3Dx, and in OGL there are functions to set a 2d orthographic matrix as the projection matrix.  I'm pretty much looking to see if I'm overlooking some peculiarity of CS or a much easier way to achieve this effect in CS.

Thanks very much.

[jorrit]

Ah but I 'm afraid CS camera system can't really do ortographic projection. But you can also render quads directly in screen space.

Greetings,

[yoshi]

I'm not sure I quite understand what you mean by rendering quads in screen space.? How exactly is this done?

[yoshi]

Nevermind, I think I figured it out.  Thanks.