Why is my PBR 3D model seams?

Your PBR 3D model has seams typically due to UV unwrapping errors, inconsistent texture baking, or mismatched material settings on adjacent faces. - **UV issues**: Overlapping, stretched, or misaligned UV islands cause texture misalignment along edges. - **Baking inconsistencies**: Variations in parameters (e.g., cage size, sampling) lead to differing color/normal values on the same surface. - **Material mismatches**: Differences in roughness, metallic, or other properties create visible lines between connected faces. To fix, use UV tools (e.g., Blender’s UV Editor) to correct islands, re-bake textures with uniform settings, and ensure material parameters match across connected parts—this smooths transitions and eliminates seams.