To optimize the topology of a 3D model for animation, focus on clean edge flow aligned with natural movement paths and use quad-dominant polygons. This ensures smooth deformation during rigging and animation, avoiding issues like mesh stretching or pinching at joints.
Key practices include: - Aligning edge loops with articulation points (e.g., elbows, knees) to support natural bending and twisting. - Maintaining even polygon density to distribute movement stress evenly across the mesh.
For complex, high-movement areas, add targeted edge loops to enhance flexibility without overcomplicating the mesh, making rigging and animation more efficient.