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#ifndef GFXGEOM4D_INCLUDED
#define GFXGEOM4D_INCLUDED
#if !defined(__GNUC__)
# pragma once
#endif
/************************************************************************
Handy 4D geometrical primitives
$Id: geom4d.h 6292 2005-07-01 20:09:07Z abmann $
************************************************************************/
template<class Vec>
inline Vec tet_raw_normal(const Vec& v1, const Vec& v2, const Vec& v3, const Vec& v4)
{
return cross(v2-v1, v3-v1, v4-v1);
}
template<class Vec>
inline Vec tet_normal(const Vec& v1, const Vec& v2, const Vec& v3, const Vec& v4)
{
Vec n = tet_raw_normal(v1, v2, v3, v4);
unitize(n);
return n;
}
// GFXGEOM4D_INCLUDED
#endif
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