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Well, I have a question. If I had a plane, loaded from a world file, how would I detect if something intersects the plane, such as a square. Like this: ------- | | | | -> This is the plane | | ----- -- | | | | -> This is the intersecting square -- How would I know if it intersects the plane. I think I might need: Ax + By + Cz + D = 0 Which is the plane equation. If thispost = 0 Then GoBack() Else Read() End If

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Split your square into two triangles and take a look at the numerous algortihms for triangle-plane intersection on the web, and on this site.

Cédric

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Thanks! I will look into that!

If thispost = 0 Then
GoBack()

Else
End If

##### Share on other sites
Sorry, but I couldn''t find anything here or anywhere else. Any links?

If thispost = 0 Then
GoBack()

Else
End If

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