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math: Add functions to decompose transformation matrices

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mat4_decompose() is similar to mat4_to_loc_rot_size() but returns
rotation as quaternion.
mat4_to_loc_quat() just returns location and rotation without size.
This commit is contained in:
Sergej Reich
2013-01-23 05:56:05 +00:00
parent 281e094e16
commit e83e3b0cf7
2 changed files with 29 additions and 0 deletions
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source/blender/blenlib/BLI_math_matrix.h
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@@ -173,6 +173,8 @@ void rotate_m4(float mat[4][4], const char axis, const float angle);
void mat3_to_rot_size(float rot[3][3], float size[3], float mat3[3][3]);
void mat4_to_loc_rot_size(float loc[3], float rot[3][3], float size[3], float wmat[4][4]);
void mat4_to_loc_quat(float loc[3], float quat[4], float wmat[4][4]);
void mat4_decompose(float loc[3], float quat[4], float size[3], float wmat[4][4]);
void loc_eul_size_to_mat4(float R[4][4],
const float loc[3], const float eul[3], const float size[3]);