A texture buffer with an insert pin

[Sjan Top]

* be aware of strange aspect ratios, the logic for get the right rectangle size is magic to me(match patch size).

@Sjan Top - here is my solution for dealing with strange aspect ratios - the main rule here is that always the shorter edge = 1, and the longer edge, be it width or height is some number >1:

Very nice, thank!
Just needed a multiply of 2 to scale the 2D Mesh to fullscreen.