G3_LookAt

Syntax

#include <nitro/gx/g3_util.h>
void G3_LookAt( const VecFx32 * camPos, const VecFx32 * camUp, const VecFx32 * target, MtxFx43 * mtx );

Arguments

camPos Pointer to camera's position vector
camUp Pointer to camera's upward vector
target Pointer to camera's focal point
mtx Pointer to a 4x3 matrix.

Return Values

None.

Description

This function sets the matrix mode to Position/Vector mode and sets the camera matrix as the current matrix. When mtx is not NULL, the camera matrix will also be set in *mtx.*There is no need for *camUp to be normalized. The matrix that is set is as shown below.

See Also

Revision History

2004/01/19 Initial version.


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