void draw(Mf::Scalar alpha) const;
void drawIfVisible(Mf::Scalar alpha, const Mf::Frustum& frustum) const;
Mf::Scalar getZCoord(const Mf::Vector2& position) const;
void draw(Mf::Scalar alpha) const;
void drawIfVisible(Mf::Scalar alpha, const Mf::Frustum& frustum) const;
Mf::Scalar getZCoord(const Mf::Vector2& position) const;