X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=libs%2Fcgmath%2Fcgmvec3.inl;fp=libs%2Fcgmath%2Fcgmvec3.inl;h=8191c63dc1c00b4c4a5d15cb65f04b7ea96da54e;hb=81dffafe4b045c854d8a97f9c6c41877ee7669ca;hp=874d0fcd27b43841503c7c7ed095c3cd9b1117d9;hpb=c64a0d68e1bee56fd8b0375a747a896e8424398b;p=retroray

diff --git a/libs/cgmath/cgmvec3.inl b/libs/cgmath/cgmvec3.inl
index 874d0fc..8191c63 100644
--- a/libs/cgmath/cgmvec3.inl
+++ b/libs/cgmath/cgmvec3.inl
@@ -22,6 +22,13 @@ static CGM_INLINE cgm_vec3 cgm_vvec(float x, float y, float z)
 	return v;
 }
 
+static CGM_INLINE void cgm_vneg(cgm_vec3 *v)
+{
+	v->x = -v->x;
+	v->y = -v->y;
+	v->z = -v->z;
+}
+
 static CGM_INLINE void cgm_vadd(cgm_vec3 *a, const cgm_vec3 *b)
 {
 	a->x += b->x;