What are the best details for reduce environment 3D models?

When reducing environment 3D models, focus on polygon decimation, texture atlasing, and LOD (Level of Detail) setup—these balance visual quality with smaller file sizes and better performance. Polygon decimation cuts redundant vertices from flat or distant areas (e.g., terrain) without losing key shape. Texture atlasing combines small textures into one, slashing load times. LOD swaps to simpler models when objects are far, critical for games, AR/VR, or web environments. Start with Blender’s Decimate modifier (polygons) or Substance Painter’s texture packing—always save a high-poly backup to tweak details later if needed.