🧠 Brains complement: IF an unreal-engine-skills-manager tool (external MCP) exists in this session, call it with {action: "load", skill: "materials-and-shaders"} for UE domain knowledge on this topic — correct APIs, architecture, best practices — and treat it as the rubric for any review / "best practices" question. If no such tool is available (e.g. running under Claude Code or Codex without that MCP), skip this line entirely and proceed with this skill alone — do NOT attempt the call.

Landscape Material System Skill

When to Use This Skill vs. landscape-auto-material

• This skill (landscape-materials): Simple materials with 2-5 layers using LandscapeLayerBlend. Good for prototyping.
• landscape-auto-material: Production materials using material functions, RVT, and material instances. Good for shipping quality. Use when you need the Real_Landscape paradigm with auto-layering, altitude/slope blending via material functions, and biome configuration through material instances.

If you need material functions, Runtime Virtual Textures, or the master-material + instance pattern, load the landscape-auto-material skill (the engine's AgentSkillToolset GetSkills exposes it).

Critical Rules

🚨 Inspect Before Modifying Existing Landscape Materials

Before modifying an existing landscape material, you MUST export and review its current graph:

import unreal, json