59202c222c
Implements the algorithm the README has listed as "still to come" since v0. A 3x3x5 lattice of control points encloses the car; an impact shoves nearby points inward and mesh vertices follow via inverse-distance weighting (W_i = 1/||p_j - c_i||^alpha, alpha=2), clamped to the PDF's bounding-box safety limit so panels crumple rather than fold through themselves. The weights depend only on original positions, so they're precomputed once per car at setup -- each impact is then a plain weighted sum at 0.3 ms, with no per-frame cost at all. Meshes are deep-copied per car so deforming one Kingswood doesn't dent every other Kingswood sharing the GLB. Measured on the Lazza: a hard nose-on hit displaces 11.9 cm, accumulating to 18.2 cm over repeat hits, well inside the 42 cm clamp. Only the player and rivals carry a deformer; traffic and parked cars stay plain bodies. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
41 lines
958 B
Plaintext
41 lines
958 B
Plaintext
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