Coin 5.6 Envir ‌‌‍‍‎ Ultra Modular Landscape System v1.3

v1.30 – 01.04.2026 (UE 5.6 + 5.7 only)

UML System

• New winter biome example with snow covered mountains
  • 6 new snow materials
  • Advanced snow material features (SSS support, dynamic footsteps
• Spline based roads and trails
  • 2 snow and 2 forest path materials
  • Advanced RVT blending
  • Nanite support
• New detailed forests in the Alpine mountain example level
  • New forest erosion maps for the alpine mountain prefabs
  • 2 new forest materials
  • Decals spawned under foliage meshes via EasyPCG
• Nearly 50 further bugfixes and tweaks across all UML elements

UML Material

• New Subsurface support ideal for snow and fuzzy grass/moss
  • Also supporting RVT (!)
• Performance optimizations, most notably with Nanite displacement
• Option to remove landscape grass in any area using RVT masking
• New texture variation technique - Using the close-up in the distant with procedural variation added
• Better blending between landscape grass meshes and the landscape texture
• Layer blending new features
  • Limit layer to maximum world height/altitude
  • Make the normal map optionally affect the layer blending
• Auto_Snow now supports RVT Fuzzy Shading

EasyPCG

• Reworked and optimized trees with 3D snow option and billboard LODs
• New winter foliage, snow covered bushes, etc.
• New option to spawn BP actors with EasyPCG
• Decal spawning under foliage (RVT + deferred decal options)
• Spline based foliage removal
• Reworked grass material
  • Advanced RVT color overlaying
  • RVT based masking and grass removal
• Improved vegetation AO techniques

v1.22