diff options
author | Campbell Barton <ideasman42@gmail.com> | 2015-10-15 13:03:27 +0300 |
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committer | Campbell Barton <ideasman42@gmail.com> | 2015-10-15 13:03:27 +0300 |
commit | 0a82a20fe4f83e937a67a2489f61eae639fb1d9c (patch) | |
tree | 08225df3d06b2b77d4f0f5740c9e8ac1959f80f1 /source/blender/blenlib/intern | |
parent | f53a21747c87e9b2358209f2b4a94b4c06c8b6bc (diff) |
BLI_math: add normalize_m#_ex functions
Useful when we need to use the axis lengths too.
Diffstat (limited to 'source/blender/blenlib/intern')
-rw-r--r-- | source/blender/blenlib/intern/math_matrix.c | 68 |
1 files changed, 52 insertions, 16 deletions
diff --git a/source/blender/blenlib/intern/math_matrix.c b/source/blender/blenlib/intern/math_matrix.c index 78662609679..b4cdce7cc11 100644 --- a/source/blender/blenlib/intern/math_matrix.c +++ b/source/blender/blenlib/intern/math_matrix.c @@ -1248,36 +1248,72 @@ bool is_uniform_scaled_m4(float m[4][4]) return is_uniform_scaled_m3(t); } +void normalize_m3_ex(float mat[3][3], float r_scale[3]) +{ + int i; + for (i = 0; i < 3; i++) { + r_scale[i] = normalize_v3(mat[i]); + } +} void normalize_m3(float mat[3][3]) { - normalize_v3(mat[0]); - normalize_v3(mat[1]); - normalize_v3(mat[2]); + int i; + for (i = 0; i < 3; i++) { + normalize_v3(mat[i]); + } } +void normalize_m3_m3_ex(float rmat[3][3], float mat[3][3], float r_scale[3]) +{ + int i; + for (i = 0; i < 3; i++) { + r_scale[i] = normalize_v3_v3(rmat[i], mat[i]); + } +} void normalize_m3_m3(float rmat[3][3], float mat[3][3]) { - normalize_v3_v3(rmat[0], mat[0]); - normalize_v3_v3(rmat[1], mat[1]); - normalize_v3_v3(rmat[2], mat[2]); + int i; + for (i = 0; i < 3; i++) { + normalize_v3_v3(rmat[i], mat[i]); + } } +void normalize_m4_ex(float mat[4][4], float r_scale[3]) +{ + int i; + for (i = 0; i < 3; i++) { + r_scale[i] = normalize_v3(mat[i]); + if (r_scale[i] != 0.0f) { + mat[i][3] /= r_scale[i]; + } + } +} void normalize_m4(float mat[4][4]) { - float len; - - len = normalize_v3(mat[0]); - if (len != 0.0f) mat[0][3] /= len; - len = normalize_v3(mat[1]); - if (len != 0.0f) mat[1][3] /= len; - len = normalize_v3(mat[2]); - if (len != 0.0f) mat[2][3] /= len; + int i; + for (i = 0; i < 3; i++) { + float len = normalize_v3(mat[i]); + if (len != 0.0f) { + mat[i][3] /= len; + } + } } +void normalize_m4_m4_ex(float rmat[4][4], float mat[4][4], float r_scale[3]) +{ + int i; + for (i = 0; i < 3; i++) { + r_scale[i] = normalize_v3_v3(rmat[i], mat[i]); + rmat[i][3] = (r_scale[i] != 0.0f) ? (mat[i][3] / r_scale[i]) : mat[i][3]; + } +} void normalize_m4_m4(float rmat[4][4], float mat[4][4]) { - copy_m4_m4(rmat, mat); - normalize_m4(rmat); + int i; + for (i = 0; i < 3; i++) { + float len = normalize_v3_v3(rmat[i], mat[i]); + rmat[i][3] = (len != 0.0f) ? (mat[i][3] / len) : mat[i][3]; + } } void adjoint_m2_m2(float m1[2][2], float m[2][2]) |