Can you create a tutorial about how to create this system from scratch in Unity 6? Include full script listing, installing packages, etc. I've built a cube room with floor, four walls, and a ceiling that are all 10 units on a side and grouped under a single node. I used a Cinemaching Freelook camera. Thanks. Format this [CONTENT] as pure Markdown for Obsidian. **Output Rules:** - Use ONLY standard Markdown syntax: # Headers, **bold**, *italic*, - bullets, 1. numbered lists, | tables, ```language fenced code blocks (with proper indentation), > blockquotes, --- HRs. - Include Obsidian callouts like > [!tip] Title\n> Text for notes/warnings. - No HTML tags (<b>, <div>), no inline code outside fences, no partial code—full blocks. - Structure: # Main Title\n## Sections\n### Subsections\nTables for comparisons\nFenced code for scripts. - Keep it concise, readable, and self-contained for direct copy-paste into a .md file. Output the full reformatted [CONTENT] now. Confirm at end: "This is 100% pure Markdown."