glTF/GLB asset preparation pipeline — Blender export, gltfpack (Meshopt) and gltf-transform optimization, Draco geometry compression, KTX2 + Basis Universal textures, gltfjsx code generation, hosting & cache headers. Use when a 3D model is too heavy, you need to bake/export from Blender, optimize for production, generate React Three Fiber components from a model, or set up CDN headers for .glb files.