Three.js splat map, rgba mask смешивание текстур ландшафта

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/