JME3 (JMonkeyEngine) Texture based height map generation in Tesselation and Fragment GLSL shaders

Sources:

• https://github.com/jMonkeyEngine/jmonkeyengine/commit/690dd7bf2803bb212c4973a10f6660c5e0464407
• https://hub.jmonkeyengine.org/t/quad-tessellation-3-1-alpha-problem/34881
• http://voxels.blogspot.com/2011/09/tesselation-shader-tutorial-with-source.html
• http://prideout.net/blog/?p=48
• http://www.ogldev.org/www/tutorial30/tutorial30.html
• http://www.informit.com/articles/article.aspx?p=2120983
• http://in2gpu.com/2014/07/12/tessellation-tutorial-opengl-4-3/
• http://in2gpu.com/2014/06/27/stitching-and-lod-using-tessellation-shaders-for-terrain-rendering/
• http://stackoverflow.com/questions/9365217/jmonkeyengine-camera-follow
• https://github.com/jMonkeyEngine/jmonkeyengine/blob/5970444b9c906fcdc64db38be356df869334f80b/jme3-examples/src/main/java/jme3test/gui/TestZOrder.java