I currently can't sphere/cylinder map this type of chart/cuts

Code:

Define the texture wrapping parameters. This will control what happens when a texture coordinate greater than 1.0 or less than 0.0 is encountered:



glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S,wrap);  

glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,wrap);  



where wrap is:

GL_REPEAT : specifies that this pattern will repeat (i.e., wrap-around) if transformed texture coordinates less than 0.0 or greater than 1.0 are encountered.



GL_CLAMP : specifies that the pattern will “stick” to the value at 0.0 or 1.0.

Code:

command({vertex,{manifoldlab,spherical_y}}, #st{sel=[{WeID,Set}]}=St) ->

    wings_io:hourglass(),

    #we{} = We = gb_trees:get(WeID, St#st.shapes),

    [{_,MinY,_}=_Min,_Max] = wings_vertex:bounding_box(We),

    {_,Dy,_} = e3d_vec:sub(_Max,_Min),

    TWOPI = 2.0*math:pi(),

    timer_start(make_uvs),

    MyAcc = fun(Fi,Acc) -> 

        Vs = wings_face:vertices_cw(Fi,We),

        MyInner = fun(Vi, _Acc) -> 

            {X,Y,Z} = wings_vertex:pos(Vi,We),

            U = (math:atan2(X,Z) + math:pi())/TWOPI, % range 0 - 1.0b

            Temp = max(min(Y/(0.5*Dy),1.0),-1.0),

            V =  (math:asin(Temp) + math:pi()/2.0)/math:pi(),

            [{U,V,Vi}|_Acc]

        end,

        UVs = lists:foldl(MyInner,[],Vs),

        [{Fi,lists:sort(UVs)}|Acc]

    end,

    List = gb_sets:fold(MyAcc, [], wings_vertex:covered_faces(Set,We)),

    timer_stop(make_uvs),

    timer_report(make_uvs),

    timer_start(apply_uvs),

    MyApply = fun({Fi, UVs0}, Acc) -> 

        UVs = 

        case UVs0 of 

            [{U1,V1,Vi1},{U2,V2,Vi2},{U3,V3,Vi3}] 

                when (U1 =< 0.25 andalso  0.75 =< U2) ->

                %erlang:display("Fix U1 !"),

                [{U1+1.0,V1,Vi1},{U2,V2,Vi2},{U3,V3,Vi3}];

            [{U1,V1,Vi1},{U2,V2,Vi2},{U3,V3,Vi3}] 

                when (U1 =< 0.25 andalso  0.75 =< U3) ->

                %erlang:display("Fix U1,U2!"),

                [{U1+1.0,V1,Vi1},{U2+1.0,V2,Vi2},{U3,V3,Vi3}];

            _ -> UVs0

        end,

        MyApply2 = fun({U,V,Vi}, _Acc) -> 

            wings_va:set_vtx_face_uvs(Vi, [Fi], {U,V}, _Acc)

        end,

        lists:foldl(MyApply2, Acc, UVs)

    end,

    We2 = lists:foldl(MyApply, We, List),

    timer_stop(apply_uvs),

    timer_report(apply_uvs),

    wings_shape:replace(WeID,We2,St);