unity-export

Unity Export

Unity-ready transforms, materials, LODs, and collision. Prefer GLB/GLTF for modern; FBX for legacy/animation.

When to Use

• Shipping assets to Unity
• Humanoid character export
• Prefab-oriented mesh splits and LODs

Pre-Flight

1. asset-optimization PASS
2. lod-pipeline if LODs required
3. collision-proxy if physics required
4. Apply transforms; correct pivots

Recommended Formats

Transform Defaults

Unit: Meters (Unity 1 unit = 1m)
Forward: -Z (Blender) → verify in Unity
Scale Factor: 1.0 (fix if model tiny/huge)

Materials

• Prefer single material slots matching Unity workflow
• Metallic-Roughness for GLTF
• Embed or provide textures beside FBX
• Name materials MAT_ consistently

Characters

• T-pose or A-pose per project
• Root bone at origin; hips correctly placed
• Humanoid: clear bone naming; test Avatar mapping
• Export animations as separate clips when needed

LODs & Collision

• LOD Group naming: SM_Name_LOD0..N or Unity LOD Group meshes
• Collision: convex meshes or Unity primitive colliders from proxies
• See collision-proxy for UCX-style naming if using FBX conventions

Verify in Unity

• [ ] Scale vs reference cube
• [ ] Pivot / prefab placement
• [ ] Normals / tangents
• [ ] Materials assigned
• [ ] LOD transitions
• [ ] Animator clips (if any)

Constraints

MUST DO

• Validate before export
• Document scale factor used
• Test import once before declaring done

MUST NOT DO

• Assume FBX settings without project convention
• Leave unused high-poly LODs in prefab

Reference Guide