Face 3D models deform during sculpting due to poor mesh topology, overly strong brush settings, or incorrect sculpting techniques.
- **Poor topology**: Triangles, n-gons, or uneven edge loops make the mesh unstable, leading to unintended warping. - **Brush settings**: Excessive strength or harsh falloff can stretch areas without control. - **Technique**: Using the wrong brush or applying too much pressure in one spot distorts facial features.
To fix, ensure clean quad topology (no triangles/n-gons), lower brush strength for lighter strokes, and use the smooth brush to correct small deformations as you sculpt.