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+# BlockifyVR
+
+## Table of contents
+1. [What This Is](#description)
+2. [How It Works](#how-it-works)
+3. [The Blocks](#the-blocks)
+3.1. [Utilities](#utilities)
+3.2. [Transformations](#transformations)
+3.3 [Controllers](#controllers)
+4. [Transformations and Coordinate Systems](#coord-systems)
+5. [Best Practices](#best-practices)
+5.1 [Optimization & Performance](#optimization)
+5.1 [Designing VR Experiences](#vr-design)
+5.2 [Maintaining Cross-Platform Compatibility](#compatibility)
+6. [Limitations](#limitations)
+7. [Examples](#examples)
+
+## What This Is
+__BlockifyVR__ is a cross-platform virtual reality extension designed to easily integrate into existing 3D projects. It targets modern __6DOF__ virtual reality headsets with two 6DOF controllers. Its purpose is to provide a framework between virtual reality and Scratch for the creation of immersive games, experiences, animations, and more.
+
+## How It Works
+BlockifyVR is a relatively simple extension that provides a layer of interaction between WebXR and Scratch that enables you to create VR experiences with ease. Its heart and foundation relies on [A-frame](https://aframe.io), a JavaScript library built on top of [Three.js](https://threejs.org) designed specifically for VR development on the web. These systems allow you to open your Scratch project into a immersive VR session that enable tracking, controller input, and more VR capabilities to be accessed by your project as input for your experiences.
+
+
+
+> [!TIP]
+> Reading documentation isn't the best way to learn. For better documentation, see here (external link). You can find interactive tutorials/sample projects there for you to work with.
+
+## The Blocks
+### Utilities
+
+```scratch
+(enter v) VR mode :: #00a616
+```
+This block allows you to enter or exit a VR session. You should use it at the start of a project if a headset is present.
+
+```scratch
+
+```
+This block reports whether an VR session is presenting.
+
+```scratch
+
+```
+Checks if a VR headset is connected by looking for browser support of immersive-vr or immersive-ar WebXR session.
+
+```scratch
+(stage width :: #00a616)
+```
+Reports the width of the Scratch Stage in pixels.
+
+```scratch
+(stage height :: #00a616)
+```
+Reports the height of the Scratch Stage in pixels.
+
+```scratch
+(get camera [field of view v] :: #00a616)
+```
+Returns either the FOV, near clipping plane, or far clipping plane of the camera.
+
+### Transformations
+```scratch
+([x-position v] of [headset v] :: #00a616)
+```
+Returns the X, Y, or Z position of the headset, left controller, or right controller.
+
+```scratch
+([x-rotation v] of [headset v] :: #00a616)
+```
+Returns the X, Y, or Z rotation of the headset, left controller, or right controller.
+
+```scratch
+(item (1) of [combined v] matrix :: #00a616)
+```
+A block that returns various matrix transformations useful for injecting into 3D renderers. It accepts items from 1-16 (4x4 matrix) and can return projection, view, inverse view, and combined (projection multiplied by inverse view) matrices. For more information, see here.
+
+### Controllers
+
+Controllers are more complicated because __some buttons are only available on certain platforms__. You can see the mappings in the dropdown below.
+
+
+ Button Mappings
+
Oculus/Meta Touch Controls: Trigger, Grip, Thumbstick, A, B, X, Y, Surface
+ HTC Vive: Trigger, Grip, Trackpad, Menu, System
+ Windows Motion: Trigger, Grip, Thumbstick, Trackpad, Menu
+
+
+
+
+```scratch
+
+```
+Returns true if the specified left/right controller is connected. On the Oculus/Meta Horizon Browser, an odd system-level quirk causes the controllers to not connect until after pressing the Oculus/Meta button twice to pause and resume the experience.
+
+```scratch
+when [left controller v] [connected v] :: #00a616 hat
+```
+An event that executes when the specified controller has connected or disconnected.
+
+```scratch
+when [any v] pressed :: #00a616 hat
+```
+An event that executes when the specified button has been pressed.
+
+```scratch
+when [any v] touched :: #00a616 hat
+```
+An event that executes when the specified button has been touched. __Only available on Oculus Touch Controllers__.
+
+```scratch
+