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Math Library: add dot_m4_v3_row_x/y/z

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Campbell Barton
2013-11-20 11:46:22 +11:00
parent 02114a6737
commit 4c01709018
2 changed files with 19 additions and 0 deletions
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3
source/blender/blenlib/BLI_math_vector.h
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@@ -120,6 +120,9 @@ MINLINE float mul_project_m4_v3_zfac(float mat[4][4], const float co[3]) ATTR_WA
MINLINE float dot_m3_v3_row_x(float M[3][3], const float a[3]) ATTR_WARN_UNUSED_RESULT;
MINLINE float dot_m3_v3_row_y(float M[3][3], const float a[3]) ATTR_WARN_UNUSED_RESULT;
MINLINE float dot_m3_v3_row_z(float M[3][3], const float a[3]) ATTR_WARN_UNUSED_RESULT;
MINLINE float dot_m4_v3_row_x(float M[4][4], const float a[3]) ATTR_WARN_UNUSED_RESULT;
MINLINE float dot_m4_v3_row_y(float M[4][4], const float a[3]) ATTR_WARN_UNUSED_RESULT;
MINLINE float dot_m4_v3_row_z(float M[4][4], const float a[3]) ATTR_WARN_UNUSED_RESULT;
MINLINE void madd_v3_v3fl(float r[3], const float a[3], float f);
MINLINE void madd_v3_v3v3(float r[3], const float a[3], const float b[3]);

16
source/blender/blenlib/intern/math_vector_inline.c
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@@ -450,6 +450,22 @@ MINLINE float dot_m3_v3_row_z(float M[3][3], const float a[3])
return M[0][2] * a[0] + M[1][2] * a[1] + M[2][2] * a[2];
}
/**
* Almost like mul_m4_v3(), misses adding translation.
*/
MINLINE float dot_m4_v3_row_x(float M[4][4], const float a[3])
{
return M[0][0] * a[0] + M[1][0] * a[1] + M[2][0] * a[2];
}
MINLINE float dot_m4_v3_row_y(float M[4][4], const float a[3])
{
return M[0][1] * a[0] + M[1][1] * a[1] + M[2][1] * a[2];
}
MINLINE float dot_m4_v3_row_z(float M[4][4], const float a[3])
{
return M[0][2] * a[0] + M[1][2] * a[1] + M[2][2] * a[2];
}
MINLINE void madd_v2_v2fl(float r[2], const float a[2], float f)
{
r[0] += a[0] * f;