"this illustrates the ordering of edges of the patch. patch is shown "unwrapped". O/M is resolution along longitude divided by number of patches along longitude. every horizontal line ("parallel") has (O/M + 1) vertices per patch (they are counted from 0, like usually)"

"blue and magenta patches share vertices but shared vertices have different texture coordinates in different patches Green lines illustrate "resolution" they should have continued but i spaced out"