How to simplify a triangles 3D model?

To simplify a triangle-based 3D model, reduce its triangle count while preserving key shape details using mesh simplification tools or algorithms. This process (called “decimation”) improves performance for games, AR/VR, or web apps by merging nearby vertices, collapsing edges, or removing small, non-essential triangles. Common tools include: - Blender’s Decimate modifier - Meshlab - Online services like Meshroom For beginners, use Blender’s Decimate: Start with a 0.5 ratio and choose “Collapse” mode to keep important features (e.g., corners) while reducing triangles.