Unity Scene Optimizer
Analyzes Unity scenes and provides performance optimization recommendations for rendering, physics, memory, and platform-specific concerns.
What This Skill Analyzes
1. Rendering Performance
Analyzes draw calls (target: <100 mobile, <2000 desktop), identifies batching opportunities, recommends material consolidation and static batching.
2. Texture Optimization
Reviews compression formats (BC7/ASTC), mipmap usage, texture atlasing, and platform-specific import settings.
3. GameObject Hierarchy
Targets: <500 GameObjects mobile, <2000 desktop. Identifies deep nesting, recommends object pooling and LOD groups.
4. Lighting and Shadows
Recommends baked lighting over realtime (1-2 lights mobile, 3-4 desktop), minimal shadow-casting lights.
5. Physics Optimization
Analyzes Rigidbody count, collider complexity, collision matrix configuration. Recommends simple colliders over Mesh colliders.
6. Mobile-Specific
Platform targets: 60 FPS iOS (iPhone 12+), 30-60 FPS Android. See mobile-checklist.md for complete requirements.
Optimization Workflow
- Measure: Frame Debugger, Stats, Profiler metrics
- Identify: GPU/CPU/Memory/Physics bottlenecks
- Apply: Quick wins (static batching, compression) → Medium (atlases, pooling, LOD) → Major (hierarchy refactor, culling)
- Validate: Compare before/after metrics
See optimization-workflow.md for detailed steps and timelines.
Platform-Specific Targets
| Platform |
Draw Calls |
Triangles |
Texture Memory |
Lights |
| Mobile Low |
<50 |
<20k |
<100MB |
1 |
| Mobile Mid |
<100 |
<50k |
<250MB |
1-2 |
| Mobile High |
<150 |
<100k |
<500MB |
2-3 |
| PC Low |
<500 |
<200k |
<1GB |
3-4 |
| PC Mid |
<1000 |
<500k |
<2GB |
4-6 |
| PC High |
<2000 |
<1M |
<4GB |
6-8 |
| Console |
<1000 |
<800k |
<3GB |
4-6 |
Tools Reference
Frame Debugger, Profiler, Stats Window, Memory Profiler. See tools-reference.md for usage and commands.
Output Format
Provides: Current metrics, bottleneck identification, prioritized recommendations, performance impact estimates, implementation steps.
When to Use vs Other Components
Use this Skill when: Analyzing scene performance, identifying bottlenecks, or getting optimization recommendations
Use @unity-performance agent when: Implementing complex optimizations, profiling at runtime, or troubleshooting specific performance issues
Use @unity-architect agent when: Redesigning scene architecture, implementing object pooling systems, or planning large-scale optimizations
Use /unity:optimize-scene command when: Running comprehensive scene analysis with detailed reports
Related Skills
- unity-script-validator: For script-level performance issues
- unity-template-generator: For optimized component templates
