G3_Frustum

C Specification

#include <nitro/gx/g3_util.h>
void G3_Frustum( fx32 t, fx32 b, fx32 l, fx32 r, fx32 n, fx32 f, MtxFx44 * mtx );

Arguments

t Y coordinate at the top of the near clipping plane
b   Y coordinate at the bottom of the near clipping plane
l X coordinate at the left of the near clipping plane
r X coordinate at the right of the near clipping plane
n Distance from eyepoint to the near clip plane
f Distance from eyepoint to the far clip plane
mtx The pointer to a 4x4 matrix.

Return Values

None.

Description

This function sets the Matrix mode to the Projection mode. This function also sets the Frustum matrix as the current matrix. If mtx is not NULL, then the Frustum matrix is also set in *mtx. This function uses the Divider. The diagram shows the matrix that is set.

See Also

G3_FrustumW, G3_Perspective, G3_Ortho

Revision History

01/19/2004 Initial version