The unary operators are overloaded operators for the D3D_OVERLOADS extensions. The unary operators are defined as follows:
_D3DVECTOR operator + (const _D3DVECTOR& v);
_D3DVECTOR operator - (const _D3DVECTOR& v);
inline _D3DVECTOR
operator + (const _D3DVECTOR& v)
{
return v;
}
inline _D3DVECTOR
operator - (const _D3DVECTOR& v)
{
return _D3DVECTOR(-v.x, -v.y, -v.z);
}