To reduce memory usage when working with 3D models, focus on optimizing geometry, textures, and scene complexity.
First, simplify geometry: Use decimation tools or retopology to lower polygon counts by removing redundant vertices, especially in non-visible areas.
Second, compress textures: Adopt efficient formats like JPEG, BCn, or WebP to shrink file sizes while retaining essential detail; avoid uncompressed formats unless necessary.
Third, streamline the scene: Delete unused assets, hide off-camera objects, or implement LOD (level-of-detail) techniques to load lower-poly models when not in focus.
These steps minimize memory load by targeting key resource-heavy elements.