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Hi I have made a plane using D3DXPlaneFromPoints. I realise that the D3DXPlaneIntersectLine function informs you of the vector position at which intersection takes place between the plane and the line. I am now trying to use D3DXPlaneDotCoord to determine if the line is intersecting a triangle. However I cannot fathom what arguments to pass to this functions. I know that if the correct arguments are passed this function will return 0 if intersection is taking place. Could any1 help me with this please? Thanks Dan

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