Packing 32bit Heightmap data in a Texture2D bitmap in Unity3D

To Transfer heightmap data for files is often cumbersome. Heightmap data typically comes in proprietary formats, not given priority by ISPs, therefore are transferred slowly for games. To boost the transfer of heightmap data, as well as provide a handy visual clue to the contents, we can encode 32bits of heightmap information in a png using a bitshifting/unshifting technique...
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