# NEX Runtime Solver Manual Appendix — Bridge16 visual contact

Bridge14B proves target-level object contact only. User visual screenshots show that target contact is insufficient when the visible ball and arms do not follow.

Bridge16 adds a compact actual-bind candidate:

- keep pelvis/root baseline unchanged,
- compact front-loaded two-hand prop,
- avoid `medBall` alias when the desired prop is goblet/front-loaded and not a giant medicine ball,
- actual Hand/ForeArm bones must be checked/bound against grip anchors,
- visible prop mesh must be checked/bound against object center.

Production approval requires actual visual arm/object evidence, not only target map diagnostics.