matrix_to_quat (3alleg4)

Constructs a quaternion from a rotation matrix. allegro game programming library.

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  4. matrix_to_quat: Constructs a quaternion from a rotation matrix. allegro game programming library.
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  4. matrix_to_quat: Constructs a quaternion from a rotation matrix. allegro game programming library.

SYNOPSIS

#include <allegro.h>

void matrix_to_quat(const MATRIX_f *m, QUAT *q);

DESCRIPTION

Constructs a quaternion from a rotation matrix. Translation is discarded during the conversion. Use get_align_matrix_f() if the matrix is not orthonormalized, because strange things may happen otherwise.