lul

struct Vertex
{
    static int attribCount()
    {
        return 3;
    }
    template<typename T> void Set(T& value)
    {
    }
    static AttrInfo getAttrInfo(int i)
    {
        switch (i)
        {
            case 2: return  positionInfo();
            case 1: return  normalInfo();
            case 0: return  uvInfo();
        }
        return AttrInfo();
    }
    AttrPosition position;
    template<> void Set(AttrPosition& value)
    {
        this-> position = value;
    }
    static AttrInfo  positionInfo()
    {
        AttrInfo info;
        info.elemCount = AttrPosition::elemCount();
        info.elemType = AttrPosition::elemType();
        info.size = AttrPosition::size();
        return info;
    }
    AttrNormal normal;
    template<> void Set(AttrNormal& value)
    {
        this-> normal = value;
    }
    static AttrInfo  normalInfo()
    {
        AttrInfo info;
        info.elemCount = AttrNormal::elemCount();
        info.elemType = AttrNormal::elemType();
        info.size = AttrNormal::size();
        return info;
    }
    AttrUV uv;
    template<> void Set(AttrUV& value)
    {
        this-> uv = value;
    }
    static AttrInfo  uvInfo()
    {
        AttrInfo info;
        info.elemCount = AttrUV::elemCount();
        info.elemType = AttrUV::elemType();
        info.size = AttrUV::size();
        return info;
    }
};