/blender-web-pipeline

3D Model Optimization Strategies

Advanced optimization techniques for web-ready 3D models.

Polygon Reduction

1. Decimate Modifier (Automatic)

Best for: Organic shapes, detailed models

decimate = obj.modifiers.new(name='Decimate', type='DECIMATE')
decimate.ratio = 0.5  # 50% reduction
decimate.use_collapse_triangulate = True

2. Manual Retopology

Best for: Character models, hero assets

• Tools: Quad Draw, PolyBuild, Shrinkwrap modifier
• Target: Clean edge loops, optimized topology

3. Normal Map Baking

Best for: Static props, architecture

# Bake high-poly detail to normal map
# Apply to low-poly model in web engine

Texture Optimization

1. Texture Atlasing

Combine multiple textures into one large texture

Benefits:

• Fewer draw calls
• Better performance
• Smaller total file size

2. Texture Compression

• Use JPEG for diffuse maps (lossy, smaller)
• Use PNG for alpha/normal maps (lossless)
• Target resolution: 512-1024px

3. MIP Mapping

Auto-generated by web engines

• Smaller textures for distant objects
• Better performance, reduced aliasing

File Size Reduction

Target sizes:

• Small props: <100 KB
• Character models: 500 KB - 1 MB
• Environment assets: 1-5 MB

Strategies:

1. Draco compression (60-90% reduction)
2. Lower texture resolution
3. JPEG instead of PNG
4. Reduce polygon count
5. Remove unused data

Performance Targets

• Triangles: <50,000 per model
• Draw calls: Minimize (texture atlases, instancing)
• Texture memory: <50 MB total
• Load time: <2 seconds