Guides
Learn about PBR materials, texture workflows, and AI-powered generation.
Normal Map vs Bump Map: The Honest Difference
Normal map vs bump map — what's actually different, when each one wins, and the OpenGL/DirectX channel flip that turns every bump into a dent in Unreal.
8 min readWhat is a Roughness Map? A 3D Artist's Plain-English Guide
What a roughness map is, why it's grayscale, how it differs from glossiness, and the channel-packing trap that turns metal into plastic in Unreal or Unity.
10 min readWhat is a Normal Map? A 3D Artist's Plain-English Guide
What a normal map is, why it's purple, how it differs from bump and height maps, and how to make one — including the OpenGL/DirectX flip that breaks half of Unity imports.
11 min readWhat is PBR? A Complete Guide to Physically Based Rendering Materials
Learn what PBR is, why it matters for 3D graphics, and how albedo, normal, roughness, AO, and metalness maps work together to create realistic materials.
8 min readHow to Create PBR Materials with AI in 2026
Step-by-step guide to generating production-ready PBR textures using AI. From text prompt to game-engine export in under a minute.
6 min read