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C-/C++-Quelltext

class Vector3
{
  ..
  friend Vector3 cross( const Vector3& v1, const Vector3& v2 );
  ..
}

inline Vector3 cross( const Vector3& v1, const Vector3& v2 )
{
    Vector3 temp;

    temp.e[0] = v1.y() * v2.z() - v1.z() * v2.y();
    temp.e[1] = v1.z() * v2.x() - v1.x() * v2.z();
    temp.e[2] = v1.x() * v2.y() - v1.y() * v2.x();

    return temp;
}

C-/C++-Quelltext

Camera::Camera( Vector3 place, Vector3 up, Vector3 mov, int width, int height, float angel )
{
    G       = mov - place;
    dist    = G.length();

    screenX.cross( G, up );            // <-- Error C2039

    screenX.makeUnitVector();
    screenY.cross( screenX, G );    // <-- Error C2039

    screenY.makeUnitVector();

    float verhaeltnis = ( float )( width / height );
    vfov    = angel / verhaeltnis;
    hfov    = angel;

    mx      = ( float )( ( 2 * dist ) * ( hfov / width ) );
    my      = ( float )( ( 2 * dist ) * ( vfov / height ) );
    screenX = screenX * mx;
    screenY = screenY * my;

    F       = G - screenX * ( float )( width / 2 ) + screenY * ( float )( height / 2 );
}