Move plan from user directory to project docs for cross-machine sync. This plan describes the two-phase GPU-based deformation system: stress propagation and displacement calculation. Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Design document for improving mesh topology and UV quality during plastic deformation. Uses Laplacian smoothing + edge length constraints to prevent triangle degradation and texture tearing. Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>