monumentalsystems Asset Optimization
Polygon Reduction Techniques
Decimation
- Decimation Algorithms: Reduce polygon count while preserving shape
- Decimation Tools: Use decimation modifiers or tools
- Decimation Ratio: Set appropriate decimation ratio
- Silhouette Preservation: Maintain silhouette and important details
- Topology Cleanup: Clean topology after decimation
- Quality Assessment: Assess visual quality after decimation
Retopology
- Retopology Tools: Use retopology tools for clean topology
- Manual Retopology: Manual retopology for quality control
- Automatic Retopology: Automatic retopology for speed
- Quad-Based Topology: Maintain quad-based topology
- Edge Flow: Maintain proper edge flow for deformation
- Topology Optimization: Optimize topology for performance
Polygon Reduction Best Practices
- Prioritize Important Areas: Keep detail in visible areas
- Reduce in Less Visible Areas: Reduce polygons in less visible areas
- Maintain Silhouette: Preserve silhouette and important shapes
- Clean Topology: Maintain clean, optimized topology
- Test in Engine: Test optimized assets in target engine
- Iterative Process: Iterate and refine as needed
LOD (Level of Detail) Creation
LOD Levels
- LOD0: Highest detail, closest distance
- LOD1: Medium detail, medium distance
- LOD2: Low detail, far distance
- LOD3+: Very low detail, very far distance
- LOD Count: Determine appropriate LOD count based on asset importance
- LOD Distances: Set appropriate transition distances
LOD Creation Techniques
- Manual LOD Creation: Manually create LOD levels
- Automatic LOD Generation: Automatically generate LOD levels
- Decimation: Use decimation for LOD generation
- Retopology: Use retopology for LOD generation
- Material Reduction: Reduce material complexity for LODs
- Texture Reduction: Reduce texture resolution for LODs
LOD Transitions
- Transition Distance: Set appropriate transition distances
- Smooth Transitions: Ensure smooth transitions between LODs
- Dithering: Use dithering for smoother transitions
- Hysteresis: Use hysteresis to prevent flickering
- Testing: Test LOD transitions in target engine
- Performance: Verify performance improvements
Texture Compression and Formats
Texture Formats
- ASTC: Adaptive Scalable Texture Compression (mobile)
- ETC2: Ericsson Texture Compression (mobile)
- BC7: Block Compression 7 (PC, console)
- BC5: Block Compression 5 (normal maps)
- DXT5: S3 Texture Compression (legacy)
- PVRTC: PowerVR Texture Compression (iOS)
Texture Compression
- Lossless Compression: Lossless compression for quality
- Lossy Compression: Lossy compression for size
- Compression Quality: Set appropriate compression quality
- Compression Artifacts: Check for compression artifacts
- Platform-Specific: Use platform-specific compression
- Testing: Test compressed textures in target engine
Texture Optimization
- Resolution Reduction: Reduce texture resolution where appropriate
- Texture Atlasing: Combine multiple textures into single atlas
- Channel Packing: Pack multiple maps into single texture channels
- Mipmap Generation: Generate mipmaps for distance rendering
- Texture Streaming: Stream textures based on distance
- Texture Budget: Manage texture memory budget
Draw Call Optimization
Draw Call Reduction
- Mesh Batching: Combine meshes into single draw call
- GPU Instancing: Render multiple instances with single draw call
- Static Batching: Batch static objects
- Dynamic Batching: Batch dynamic objects
- Material Merging: Merge materials to reduce draw calls
- Texture Atlasing: Combine textures to reduce draw calls
Batching Techniques
- Static Batching: Batch static objects into single mesh
- Dynamic Batching: Batch dynamic objects at runtime
- GPU Instancing: Use GPU instancing for repeated objects
- SRP Batcher: Use SRP Batcher in Unity
- Instanced Rendering: Use instanced rendering in Unreal
- Custom Batching: Implement custom batching solutions
Draw Call Best Practices
- Minimize Draw Calls: Reduce draw calls where possible
- Batch Similar Objects: Batch objects with same materials
- Use Instancing: Use instancing for repeated objects
- Optimize Materials: Optimize materials for batching
- Test Performance: Test draw call performance in target engine
- Profile: Profile draw calls with profiling tools
Mesh Optimization for Real-Time Rendering
Mesh Optimization Techniques
- Vertex Cache Optimization: Optimize vertex cache for better performance
- Overdraw Reduction: Reduce overdraw for better performance
- Triangle Count: Reduce triangle count for better performance
- Vertex Count: Reduce vertex count for better performance
- Mesh Simplification: Simplify mesh for better performance
- Mesh Compression: Use mesh compression for better performance
Real-Time Considerations
- Vertex Processing: Minimize vertex processing
- Fragment Processing: Minimize fragment processing
- Memory Bandwidth: Minimize memory bandwidth usage
- GPU Utilization: Optimize GPU utilization
- CPU Utilization: Optimize CPU utilization
- Frame Rate: Maintain target frame rate
Platform-Specific Optimization
- Mobile: Lower vertex count, simpler meshes
- Console: Medium optimization, balance quality and performance
- PC: Higher quality, more complex meshes
- VR: High frame rate priority, reduced complexity
- AR: Real-time performance priority
Platform-Specific Optimization Guidelines
Mobile Optimization
- Polygon Budget: Keep polygon count low (1K-10K per object)
- Texture Resolution: Keep texture resolution low (512x512 to 1024x1024)
- Draw Calls: Minimize draw calls (<100 per frame)
- Material Complexity: Simplify materials
- Shader Complexity: Simplify shaders
- Performance: Target 30-60 FPS
Console Optimization
- Polygon Budget: Medium polygon count (10K-50K per object)
- Texture Resolution: Medium texture resolution (1024x1024 to 2048x2048)
- Draw Calls: Moderate draw calls (<500 per frame)
- Material Complexity: Medium material complexity
- Shader Complexity: Medium shader complexity
- Performance: Target 60 FPS
PC Optimization
- Polygon Budget: Higher polygon count (50K-100K per object)
- Texture Resolution: Higher texture resolution (2048x2048 to 4096x4096)
- Draw Calls: Higher draw calls (<1000 per frame)
- Material Complexity: Higher material complexity
- Shader Complexity: Higher shader complexity
- Performance: Target 60+ FPS
VR Optimization
- Polygon Budget: Low polygon count for high frame rate
- Texture Resolution: Medium texture resolution
- Draw Calls: Minimize draw calls for high frame rate
- Material Complexity: Simplify materials for high frame rate
- Shader Complexity: Simplify shaders for high frame rate
- Performance: Target 90+ FPS
AR Optimization
- Polygon Budget: Low polygon count for real-time performance
- Texture Resolution: Low texture resolution for real-time performance
- Draw Calls: Minimize draw calls for real-time performance
- Material Complexity: Simplify materials for real-time performance
- Shader Complexity: Simplify shaders for real-time performance
- Performance: Target 60+ FPS
Optimization Tools and Workflows
Optimization Tools
- Unity Profiler: Profile performance in Unity
- Unreal Insights: Profile performance in Unreal
- RenderDoc: Graphics debugging and profiling
- NVIDIA Nsight: NVIDIA graphics profiling tools
- AMD Radeon GPU Profiler: AMD graphics profiling tools
- Custom Tools: Custom optimization tools
Optimization Workflow
- Profile: Profile performance to identify bottlenecks
- Analyze: Analyze profiling data to identify issues
- Optimize: Optimize based on profiling data
- Test: Test optimizations in target engine
- Iterate: Iterate and refine as needed
- Document: Document optimizations and trade-offs
Optimization Best Practices
- Profile First: Profile before optimizing
- Optimize Bottlenecks: Optimize identified bottlenecks first
- Test Changes: Test each optimization individually
- Measure Impact: Measure impact of each optimization
- Iterate: Iterate and refine as needed
- Document: Document optimizations and decisions