diff options
author | Campbell Barton <ideasman42@gmail.com> | 2014-05-29 18:26:05 +0400 |
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committer | Campbell Barton <ideasman42@gmail.com> | 2014-05-29 18:26:32 +0400 |
commit | b2cad79500bb1af92153928479ca7d7144463e00 (patch) | |
tree | e34b336625b2795a371eab7dcc0fc67588f74699 /source/blender/blenlib/intern/math_matrix.c | |
parent | 0780f5915b29ab7102bf1cb8bddd54774161d0d3 (diff) |
Math lib: add negate_m3, negate_m4
Diffstat (limited to 'source/blender/blenlib/intern/math_matrix.c')
-rw-r--r-- | source/blender/blenlib/intern/math_matrix.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/source/blender/blenlib/intern/math_matrix.c b/source/blender/blenlib/intern/math_matrix.c index f375a5c01ed..7fc30e3112b 100644 --- a/source/blender/blenlib/intern/math_matrix.c +++ b/source/blender/blenlib/intern/math_matrix.c @@ -519,7 +519,6 @@ void mul_transposed_mat3_m4_v3(float mat[4][4], float vec[3]) vec[2] = x * mat[2][0] + y * mat[2][1] + mat[2][2] * vec[2]; } - void mul_m3_fl(float m[3][3], float f) { int i, j; @@ -547,6 +546,24 @@ void mul_mat3_m4_fl(float m[4][4], float f) m[i][j] *= f; } +void negate_m3(float m[4][4]) +{ + int i, j; + + for (i = 0; i < 3; i++) + for (j = 0; j < 3; j++) + m[i][j] *= -1.0f; +} + +void negate_m4(float m[4][4]) +{ + int i, j; + + for (i = 0; i < 4; i++) + for (j = 0; j < 4; j++) + m[i][j] *= -1.0f; +} + void mul_m3_v3_double(float mat[3][3], double vec[3]) { double x, y; |