diff options
Diffstat (limited to 'libdimension/dimension/geometry.h')
| -rw-r--r-- | libdimension/dimension/geometry.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/libdimension/dimension/geometry.h b/libdimension/dimension/geometry.h index 86a0111..08ac1b3 100644 --- a/libdimension/dimension/geometry.h +++ b/libdimension/dimension/geometry.h @@ -77,6 +77,14 @@ dmnsn_line_construct(dmnsn_vector x0, dmnsn_vector n) /* Vector and matrix arithmetic */ DMNSN_INLINE dmnsn_vector +dmnsn_vector_negate(dmnsn_vector rhs) +{ + /* 3 negations */ + dmnsn_vector v = { -rhs.x, -rhs.y, -rhs.z }; + return v; +} + +DMNSN_INLINE dmnsn_vector dmnsn_vector_add(dmnsn_vector lhs, dmnsn_vector rhs) { /* 3 additions */ |