MTX_OrthoW


C Specification

#include <nitro/fx/fx_mtx44.h>

void MTX_OrthoW(
    fx32        t,
    fx32        b,
    fx32        l,
    fx32        r,
    fx32        n,
    fx32        f,
    fx32        scaleW,
    MtxFx44*    mtx );

Description

This sets a orthogonal projection matrix to matrix *mtx. It uses the Divider.

Note: When setting the matrix for an orthogonal projection, it will be necessary to select Z-buffering with the G3*_SwapBuffers. The operation is not guaranteed if W-buffering is used, since the depth value is constant.

xscaleW

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 The distance from the eyepoint to the near clipping plane
f The distance from the eyepoint to the far clipping plane
scaleW Fine adjustment parameter for the view volume
mtx Pointer to a 4x4 matrix

Return Values

None.

See Also

G3_OrthoW, MTX_Ortho, G3_Ortho

Revision History

06/21/2004 Initial Version