throwAway

local indList = {
    1, 1, 1,
    2, 2, 2,
    3, 3, 3,
    4, 4, 4,
}

local vertList = {
    1, 1, 1, 0,
    2, 2, 2, 0,
    3, 3, 3, 0,
    4, 4, 4, 0,
    5, 5, 5, 0,
    6, 6, 6, 0,
    7, 7, 7, 0,
}

local function sortVerts(iL,vL) --vL == vertice list, iL == index list
    local vList = {}
    for i = 1, #iL, 3 do --Load a triangle at a time into the vList to draw in the next loop.
        vList[i]=   {x= vL[ iL[i]   ], y= vL[ iL[i]+1   ], z= vL[ iL[i]+2   ] } --Target vertex1's x/y and z
        vList[i+1]= {x= vL[ iL[i+1] ], y= vL[ iL[i+1]+1 ], z= vL[ iL[i+1]+2 ] } --Target vertex2's x/y and z
        vList[i+2]= {x= vL[ iL[i+2] ], y= vL[ iL[i+2]+1 ], z= vL[ iL[i+2]+2 ] } --Target vertex3's x/y and z
    end
    return vList
end

list = sortVerts(indList,vertList)

for i,val in ipairs(list) do
    print(val.x,val.y,val.z)
end