#include <nitro/fx/fx_mtx44.h>
void MTX_Ortho( fx32 t, fx32 b, fx32 l, fx32 r, fx32 n, fx32 f, MtxFx44 * mtx );
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. |
None.
*This function sets an orthogonal projection matrix to *mtx. It uses the Divider. The diagram shows the matrix that is set.
Note: When setting the matrix for an orthogonal projection, it will be necessary to select Z-buffering with the G3*_SwapBuffers
. W buffering will not function properly because the depth value will always be fixed.
G3_Ortho, MTX_Frustum, MTX_Perspective
04/27/2004 Initial version