Update Camera3D to exact D-019 angle (-72.5° from horizontal).
Replace single DirectionalLight with three-point studio rig
(key 1.0, fill 0.4, rim 0.3) for clean silhouettes without
baked shadows. Add generic NPC capsule model (24×32px footprint
per D-044). Document full pipeline spec in renderer/README.md.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
