nx_pressure_deformation.nx

nx_pressure_deformation.nx -- skin-on-skin contact tissue compression check. Mannequin failure marker from image #45: hand cupping breast but the breast tissue doesn't displace where the hand presses against it. Real bodies show measurable compression at contact zones; mannequins pass through each other or show rigid edges. Math: Given primary region bbox (breast) + contact region bbox (where arm/hand crosses), the EXPECTED skin-mask area inside the contact region is the primary region's local density × contact area. Measured area / expected area = compression ratio. < 0.7 ratio → strong compression (tissue displaced) NATURAL 0.7..0.85 → mild compression AMBIGUOUS > 0.85 → little/no compression MANNEQUIN_RIGID Also measure contact-boundary roughness: count skin-mask transitions in horizontal slices through the contact band. Real flesh contacts produce many transitions (wavy compression boundary); mannequins produce a clean straight boundary.