> For the complete documentation index, see [llms.txt](https://postica.gitbook.io/binding-system-3/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://postica.gitbook.io/binding-system-3/tutorials.md). # Tutorials and Demo Scenes Build a complete example in one sitting, or explore the demo scenes that ship with the package. The rest of this documentation describes what every part of the system does. This section does something different: each page builds **one working thing**, from an empty scene or close to it, in one sitting. Every tutorial is independently completable. It assumes you have read [Your First Binding](/binding-system-3/getting-started/first-binding.md) and nothing else. Where a step needs a concept explained, the explanation is at the end, under **What just happened**, so that nothing interrupts the build. ## Three paths

Path	What it means
No code	Built entirely from the Inspector, with proxy bindings. This is the main sequence, and it is where to start whatever your role is.
With code	Shorter, for programmers. When a `Bind<T>` field is the right call, and how to write a modifier and a converter of your own.
At project scale	Not one binding but hundreds. Auditing before a release, finding the one that costs you frames, and surviving a rename.

## No code


A Health Bar with No Driver Class	A fill bar that follows a value, and the script you no longer write	A Health Bar with No Driver Class	image.png
A Settings Panel That Drives the Scene	One named value, several targets, and no singleton	A Settings Panel That Drives the Scene	Screenshot 2026-09-26 at 15.12.23.png
Binding an Asset You Cannot Edit	ScriptableObjects, materials, and which file the binding lands in	Binding an Asset You Cannot Edit	Screenshot 2026-09-26 at 15.49.02.png
Making a Value Follow Smoothly	Tween, damp, and the update setting that ruins both	Making a Value Follow Smoothly	Screenshot 2026-09-26 at 16.08.41.png
A HUD in UI Toolkit	Binding from UI Builder, and where the binding is kept	A HUD in UI Toolkit	Screenshot 2026-09-26 at 16.56.51.png

## With code


When to Declare a Bind Field	The same bar in code, and the frame of difference	When to Declare a Bind Field	Screenshot 2026-09-26 at 23.02.18.png
Writing Your First Modifier	Twenty lines, a bindable parameter and a working inverse	Writing Your First Modifier	Screenshot 2026-09-26 at 23.13.03.png
Writing Your First Converter	Crossing a type boundary, in both directions	Writing Your First Converter	Screenshot 2026-09-27 at 11.20.28.png

## At project scale


Auditing a Project Before Release	Two passes: what is broken, then what was never finished	Auditing a Project Before Release	Screenshot 2026-09-27 at 11.48.26.png
Finding the Binding That Costs You Frames	Measure first, then four fixes in order of payoff	Finding the Binding That Costs You Frames	Screenshot 2026-09-27 at 18.25.26.png
Surviving a Rename	Redirect fifty bindings in one decision, and the one case nothing can	Surviving a Rename	Screenshot 2026-09-27 at 19.03.47.png

## Demo scenes Explore the finished examples in the package, including Cozy Nook, Courtyard and Bindings Demo. Open them to inspect the connections and try a change in a working scene.


Demo Scenes	Import the samples, take a five-minute tour, and follow the wiring.	Demo Scenes	Screenshot 2026-09-28 at 17.50.19.png

## How to read a tutorial Each one has the same shape.

Section	What it contains
What you will build	The finished thing, and roughly how long it takes.
What you need	One line. If you have more than this, fine.
The steps	One action each, with the result you should see. If you do not see it, the step says why.
What just happened	The mechanism, after it has worked. Links into the reference for the details.
Try changing this	Two or three changes that break it in ways worth understanding.