What Beginners Get Wrong About Substrate Materials

Everything looked correct yesterday. Today the materials looked completely wrong. One setting caused it. This post is part of my daily learning journey in game development. I’m sharing what I learn each day — the basics, the confusion, and the real progress — from the perspective of a beginner. On Day 74 of my game development journey, I explored Substrate materials in Unreal Engine . What I Tried I opened a project where the materials previously looked fine. Then I disabled the Substrate option in Unreal Engine project settings. Immediately, some materials changed. Surfaces lost their layered appearance. Shading looked flatter and incorrect. Nothing inside the material graph had changed. What Confused Me Why did the material look different after disabling Substrate? Why did some nodes stop working? Is Substrate required for all materials? How does this affect Material Instances? It felt like the engine suddenly forgot how to render the material. What Finally Clicked Substrate changes