Three.js splat map, rgba mask смешивание текстур ландшафта

Описание

Three.js splat map, rgba mask смешивание текстур ландшафта

https://tech.innogames.com/terrain-shader-in-unity/
https://habr.com/ru/post/180743/
http://www.garagegames.com/community/forums/viewthread/134634/1
http://untitledgam.es/2017/01/height-blending-shader/
http://unitytipsandtricks.blogspot.com/2014/07/terrain-texture-splatting-and-threejs.html
https://www.babylonjs-playground.com #E6OZ #7
https://www.blitzcoder.org/forum/topic.php?id=135
https://godotforums.org/discussion/19724/splatmapping-any-examples
https://godotforums.org/discussion/20565/splatmap-shader-issues-on-mobile-devices-gles2-and-how-to-cope-with-them
https://ffxrunner2.ffx.it/simple-terrain-shader-tutorial/
https://www.youtube.com/watch?v=RLAG4RbT-5U
https://godotforums.org/discussion/18663/godot-3-0-the-new-way-to-make-a-terrain-shader-with-normal-maps
https://www.youtube.com/watch?v=NIIRTTu0ix8
https://kinwailo.wordpress.com/2017/05/19/godot-terrain-shader/
https://www.reddit.com/r/godot/comments/g07nj7/splat_shader_in_the_works/
https://www.chinedufn.com/webgl-multitexture-blend-map-tutorial/