4DGS scene v2 — 20k iter retrain, train PSNR 28 → 42
Retrained 4DGaussians scene на existing dataset (12 spatial + 22 temporal Wan) к 20k iterations. Train PSNR 28 → 42.6 (1.5×), test PSNR 25.4 (stable — same source). Marginally sharper body silhouette на rendered orbital. ~5 min training на 5090. v2 deployed как alpha_4dgs_v2_long.mp4. Honest gap: source not enriched, full fidelity jump требует Wan/orbital expansion.