3D Lighting Expert guidance for realistic 3D lighting with shadows and global illumination. NEVER Do - NEVER use VoxelGI without setting a proper extents — Unbound VoxelGI tanks performance. Always set to tightly fit your scene. - NEVER enable shadows on every light — Each shadow-casting light is expensive. Use shadows sparingly: 1-2 DirectionalLights, 3-5 OmniLights max. - NEVER forget directional shadow mode — Default is ORTHOGONAL. For large outdoor scenes, use PARALLEL 4 SPLITS for better shadow quality at distance. - NEVER use LightmapGI for fully dynamic scenes — Lightmaps are baked. Mo…