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Full-Body Avatar Best Practices

Optimization techniques, performance budgets, and production workflows for shipping full-body AI avatars in real-world applications.

Performance Budgets

Platform	Polygons	Textures	Bones
Mobile VR	10-15K tris	1-2 textures, 1K	50-75
PC VR	30-70K tris	4-6 textures, 2K	75-150
Desktop game	50-100K tris	6-10 textures, 4K	100-200
Film/cinematic	Unlimited	Multiple 4K-8K	200+
Web (Three.js)	10-30K tris	2-4 textures, 1-2K	50-100

LOD (Level of Detail)

• LOD 0: Full detail for close-up views
• LOD 1: 50% reduction for medium distance
• LOD 2: 75% reduction for far distance
• LOD 3: Billboard/impostor for very far distance
• AI tools like InstaLOD can automate LOD generation while preserving visual quality

Optimization Techniques

• Texture atlasing: Combine multiple textures into one to reduce draw calls
• Mesh merging: Combine clothing and body into fewer meshes where possible
• Animation compression: Use quantized keyframes and animation LOD
• GPU instancing: Render multiple avatars efficiently with instanced materials
• Occlusion: Don't render body parts hidden by clothing

Testing Checklist

• Visual quality at target platform's rendering settings
• Animation blending between states (idle, walk, run)
• Clothing penetration (body poking through clothes)
• Performance with target number of simultaneous avatars
• Loading time and memory footprint
• Cross-platform rendering consistency