To simplify triangle 3D models, prioritize preserving critical features (e.g., edges, curves, functional surfaces) while removing non-essential vertices and faces—this balances detail retention with reduced complexity for practical use.
- **Keep Key Elements**: Retain details that define the model (like a character’s facial features or a product’s logo) but simplify flat, uniform areas (e.g., plain clothing or basic shapes) to cut bloat. - **Purpose-Driven Use**: Simplify for game assets (faster rendering), 3D printing (less material waste), or AR/VR (smoother performance on devices). - **Beginner Tip**: Use Blender’s Decimate modifier—start with small reductions (10-20%) and preview changes to avoid losing important details.