To optimize FBX 3D models for Godot, focus on simplifying geometry, tuning materials/animations, and using Godot’s import settings to boost performance.
Simplify meshes with Blender’s Decimate modifier to cut unneeded polygons—key for games with many objects. Use Godot’s built-in SpatialMaterial or PBRMaterial instead of external shaders to avoid compatibility issues. Trim animations by removing unused keyframes or baking complex rigs to reduce runtime load. In Godot’s import settings, enable “Generate LODs” for distant models, disable “Import Tangents” if normals are enough, and use “Simplify Meshes” for extra reduction.
If you’re new, export a basic Blender model (FBX 7.4) and tweak Godot’s import options while previewing in the editor—this helps you see how changes like LODs impact performance in real time.