diff options
Diffstat (limited to 'source/blender/blenlib/intern/math_vector_inline.c')
| -rw-r--r-- | source/blender/blenlib/intern/math_vector_inline.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/source/blender/blenlib/intern/math_vector_inline.c b/source/blender/blenlib/intern/math_vector_inline.c index 04b9d574347..c8e8ff9602b 100644 --- a/source/blender/blenlib/intern/math_vector_inline.c +++ b/source/blender/blenlib/intern/math_vector_inline.c @@ -398,6 +398,15 @@ MINLINE void mul_v4_v4fl(float r[4], const float a[4], float f) r[3] = a[3] * f; } +/* note: could add a matrix inline */ +MINLINE float mul_project_m4_v3_zfac(float mat[4][4], const float co[3]) +{ + return (mat[0][3] * co[0]) + + (mat[1][3] * co[1]) + + (mat[2][3] * co[2]) + mat[3][3]; +} + + MINLINE void madd_v2_v2fl(float r[2], const float a[2], float f) { r[0] += a[0] * f; @@ -461,7 +470,7 @@ MINLINE void mul_v3_v3v3(float r[3], const float v1[3], const float v2[3]) r[2] = v1[2] * v2[2]; } -MINLINE void negate_v2(float r[3]) +MINLINE void negate_v2(float r[2]) { r[0] = -r[0]; r[1] = -r[1]; @@ -528,6 +537,7 @@ MINLINE float cross_v2v2(const float a[2], const float b[2]) MINLINE void cross_v3_v3v3(float r[3], const float a[3], const float b[3]) { + BLI_assert(r != a && r != b); r[0] = a[1] * b[2] - a[2] * b[1]; r[1] = a[2] * b[0] - a[0] * b[2]; r[2] = a[0] * b[1] - a[1] * b[0]; @@ -662,7 +672,7 @@ MINLINE float normalize_v3_v3(float r[3], const float a[3]) float d = dot_v3v3(a, a); /* a larger value causes normalize errors in a - * scaled down models with camera xtreme close */ + * scaled down models with camera extreme close */ if (d > 1.0e-35f) { d = sqrtf(d); mul_v3_v3fl(r, a, 1.0f / d); @@ -680,7 +690,7 @@ MINLINE double normalize_v3_d(double n[3]) double d = n[0] * n[0] + n[1] * n[1] + n[2] * n[2]; /* a larger value causes normalize errors in a - * scaled down models with camera xtreme close */ + * scaled down models with camera extreme close */ if (d > 1.0e-35) { double mul; |