New, better terrain system Terrain3D C++

Terrain For Godot 4

Terrain and editor written in GDScript.

Features

Geomipmap LOD
256 Textures
Double layer blending
Anti-tiling
Constant 19 texture lookups (16 textures, 3 maps)

TODO

Grass/detail instancing
Texture 3D Projection (commented out in shader for now)
Cull texture lookups based on blend weight (reduces lookups by ~50%)
Macro variation texture