Common mistakes when importing atlases for 3D models include misaligned UV mapping, mismatched texture resolutions, and ignored alpha channel settings. - **Misaligned UVs**: The model’s 2D UV layout doesn’t match the atlas, causing stretched, torn, or misplaced textures (e.g., a character’s eye on their shoulder). - **Mismatched resolutions**: Using an atlas too big (wastes memory) or too small (blurs details) for the model’s scene scale. - **Overlooked alpha channels**: For transparent parts (leaves, glass), forgetting alpha settings makes them look solid and unrealistic. Use your 3D tool’s preview to check alignment before finalizing—this catches issues early and saves rework.
