3D model faces often overlap due to incorrect vertex weighting, imprecise UV mapping, or poor topology.
- Vertex weighting errors: Facial features aren’t properly linked to bones, causing clipping when animated. - Imprecise UV mapping: Texture wrapping around the model is inaccurate, leading to visual overlap. - Poor topology: Misaligned edges or excess polygons make geometry intersect when the face moves.
To fix overlap, use clean edge loops around eyes/mouth and test vertex weights with simple animations early on.