Learn UNITY with Real Code Examples
Updated Nov 24, 2025
Architecture
GameObject -> container for components
Components -> logic, physics, rendering
Scenes -> levels or content spaces
Scripting runtime using C# and .NET
Rendering pipeline: Built-in, URP, HDRP
Rendering Model
Built-in Renderer
URP for mobile & mid-range
HDRP for high-end visuals
Shader Graph for node-based shaders
Real-time lighting and post-processing
Architectural Patterns
Entity–Component System
Prefab-based modularity
Script-driven behaviors
Scene-based world design
Event-driven input and physics
Real World Architectures
Mobile action games
VR training systems
AR product demos
3D strategy games
Digital twin industrial simulations
Design Principles
Component-based architecture
Modular and reusable assets
Cross-platform abstraction
Real-time interactive rendering
Rapid iteration with Play Mode
Scalability Guide
Use Addressables
Optimize scenes with occlusion culling
Use object pooling
Profile CPU/GPU bottlenecks
Use ECS/DOTS for high-load simulations
Migration Guide
Upgrade Unity version safely
Convert built-in shaders to URP/HDRP
Migrate asset pipeline
Resolve API deprecations
Run project validation tools