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Clipping Plane

Started by noaktree Aug 7, 2005 at 12:36 AM 3 replies 2.9k views

Original Post

noaktree

Aug 7, 2005 at 12:36 AM

I want to clip everything under Position(0, 25, 0) with DirectX 9c.

How do I create a user defined clipping plane to do this?
The clipping plane is flat along x and z. Normal(0, 1, 0)
The clipping plane can be moved up and down along the y axis. Position(0, ?, 0)

Mezz

Aug 7, 2005 at 6:49 AM

Is IDirect3DDevice9::SetClipPlane() what you want? You just need to create the plane equation and pass it in, the docs explain it pretty well.

-Mezz

Muhammad Haggag

Aug 7, 2005 at 7:21 AM

Use D3DXPlaneFromPointNormal to create the plane, SetClipPlane, then SetRenderState(D3DRS_CLIPPLANEENABLE, D3DCLIPPLANE0)

noaktree

Aug 7, 2005 at 12:55 PM

Quote:
Is IDirect3DDevice9::SetClipPlane() what you want? You just need to create the plane equation and pass it in, the docs explain it pretty well.

Yes this is what I need. Just couldn't figure out what function to create the plane equation with.

Quote:
Use D3DXPlaneFromPointNormal to create the plane, SetClipPlane, then SetRenderState(D3DRS_CLIPPLANEENABLE, D3DCLIPPLANE0)

Thanks again Muhammad! [smile] I feel like a "retard" having never done this before. Oh well...Ask and learn. This thing won't let me rate you any higher. [sad]

Mezz

Aug 7, 2005 at 2:02 PM

I'll rate him for you then (can't believe I hadn't already heh).

-Mezz

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