Your PBR 3D model is blurry usually from low-res textures, bad UV unwrapping, or mismatched shader/mipmap settings.
- **Low-res textures**: Textures with too few pixels (e.g., 512x512) lose detail up close, causing blur or pixelation. - **Poor UVs**: Stretched/distorted UVs warp textures, making details fuzzy or misaligned. - **Shader/mipmap issues**: Over-blurred mipmaps or non-PBR settings (like 2D sprite modes) soften the surface.
Try checking texture import settings (set for PBR) or increasing resolution slightly (e.g., to 1024x1024) in your tool.