diff options
Diffstat (limited to 'source/blender/blenlib/intern/math_matrix.c')
| -rw-r--r-- | source/blender/blenlib/intern/math_matrix.c | 41 |
1 files changed, 31 insertions, 10 deletions
diff --git a/source/blender/blenlib/intern/math_matrix.c b/source/blender/blenlib/intern/math_matrix.c index 02fc5b07d6d..8f9ea917b8c 100644 --- a/source/blender/blenlib/intern/math_matrix.c +++ b/source/blender/blenlib/intern/math_matrix.c @@ -980,14 +980,8 @@ void normalize_m4(float mat[4][4]) void normalize_m4_m4(float rmat[4][4], float mat[4][4]) { - float len; - - len = normalize_v3_v3(rmat[0], mat[0]); - if (len != 0.0f) rmat[0][3] = mat[0][3] / len; - len = normalize_v3_v3(rmat[1], mat[1]); - if (len != 0.0f) rmat[1][3] = mat[1][3] / len; - len = normalize_v3_v3(rmat[2], mat[2]); - if (len != 0.0f) rmat[2][3] = mat[2][3] / len; + copy_m4_m4(rmat, mat); + normalize_m4(rmat); } void adjoint_m2_m2(float m1[2][2], float m[2][2]) @@ -1212,6 +1206,33 @@ void mat4_to_loc_rot_size(float loc[3], float rot[3][3], float size[3], float wm copy_v3_v3(loc, wmat[3]); } +void mat4_to_loc_quat(float loc[3], float quat[4], float wmat[4][4]) +{ + float mat3[3][3]; + float mat3_n[3][3]; /* normalized mat3 */ + + copy_m3_m4(mat3, wmat); + normalize_m3_m3(mat3_n, mat3); + + /* so scale doesn't interfere with rotation [#24291] */ + /* note: this is a workaround for negative matrix not working for rotation conversion, FIXME */ + if (is_negative_m3(mat3)) { + negate_v3(mat3_n[0]); + negate_v3(mat3_n[1]); + negate_v3(mat3_n[2]); + } + + mat3_to_quat(quat, mat3_n); + copy_v3_v3(loc, wmat[3]); +} + +void mat4_decompose(float loc[3], float quat[4], float size[3], float wmat[4][4]) +{ + float rot[3][3]; + mat4_to_loc_rot_size(loc, rot, size, wmat); + mat3_to_quat(quat, rot); +} + void scale_m3_fl(float m[3][3], float scale) { m[0][0] = m[1][1] = m[2][2] = scale; @@ -1245,8 +1266,8 @@ void rotate_m4(float mat[4][4], const char axis, const float angle) assert(axis >= 'X' && axis <= 'Z'); - cosine = (float)cos(angle); - sine = (float)sin(angle); + cosine = cosf(angle); + sine = sinf(angle); switch (axis) { case 'X': for (col = 0; col < 4; col++) |