The best way to import an atlas-textured 3D model is to use compatible formats (e.g., FBX/OBJ for the model, PNG/JPG for the atlas) and load both via your software’s import tool while keeping file paths linked.
- **Ensure correct mapping**: Linked paths let the software match the atlas to the model’s UV layout, preventing texture stretching or missing parts. - **Fix missing textures**: If the atlas doesn’t show up, re-link it in material settings (like Blender’s Texture Properties or Unity’s Materials tab) using the file’s location.