AI 3D & Game Assets7 minLesson 52 of 60
Understanding PBR Textures and Export Formats
A 3D model is more than its shape. How it looks under light comes from its textures, and modern engines expect them in a standard called PBR, physically based rendering. Understanding the basic maps and the right export format is what makes a generated asset actually usable in your engine.
The common PBR maps
| Map | Controls |
|---|---|
| Base color / albedo | The surface's raw color |
| Normal | Fake surface detail without extra geometry |
| Roughness | How sharp or soft reflections are |
| Metallic | Whether the surface reads as metal |
Export what your engine wants
Common interchange formats are glTF/GLB, FBX, and OBJ. glTF/GLB is a strong default for real-time engines because it bundles the mesh and PBR textures together. Check your engine's preferred format before you export.
When a generated asset looks flat or wrong in your engine, the cause is usually the textures, not the mesh: a missing normal map, or a roughness value that does not match the material. Knowing the maps lets you diagnose and fix it.
3D Asset Creation: Generative AI for Game DevelopmentExplains generating export-ready PBR game assets from prompts for Unity and Unreal.meshy.ai