s&box WheelOverlay: Direction arrow overlay
WheelOverlay Static Class WheelOverlay is an internal static class that draws a spinning direction arrow overlay on wheel faces. Used by the Wheel tool to visua…
s&box SnapGrid: World-space snap grid overlay
SnapGrid: World-Space Snap Grid Overlay SnapGrid is a sealed class that manages a world-space snap grid overlay projected onto a surface plane. It is used by th…
WorldPanel and ScreenPanel — HUD overlays and 3D world-space UI with Razor PanelComponent
WorldPanel and ScreenPanel — UI in the World s&box UI uses (Razor) attached to either a (HUD overlay) or (3D world-space UI). The same component works with both…
s&box PostProcessGroup: Post-process categories
PostProcessGroup Enum Documentation PostProcessGroup is an enum that categorizes post-processing effects for organization in the spawn menu and asset browser. I…
Platform Chat: Built-in Text Chat with IChatEvent Filtering
s&box includes a built-in platform chat system for multiplayer games. Messages are routed through the host, validated, filtered via Steam's text filter, and dis…
Platform Chat - Built-in Multiplayer Text Chat System
Built-in text chat for multiplayer games. Messages are routed through the host, validated, filtered, and displayed via the standard overlay UI - no game code re…
Custom editor tools — EditorTool, Gizmo drawing, scene tracing, and overlay UI
Custom Editor Tools Editor tools appear in the s&box toolbar and let you build scene editing workflows — painting, placement, custom gizmos. They must live in a…
s&box PostProcessResource: Post-processing effect GameResource
PostProcessResource GameResource API Reference PostProcessResource is a GameResource that defines a post-processing effect with a prefab, used by the PostProces…
SceneCamera: World-to-Screen, Screen-to-World, Render Hooks, and Camera Properties
SceneCamera: World-to-Screen, Screen-to-World, and Render Hooks is the main camera class in s&box. It wraps a native frustum and provides coordinate conversion,…
s&box MountMetadata: Mount fallback rendering
MountMetadata Component API Reference MountMetadata is attached to mount-spawned props to show a graceful bounding box and hint the player which game it's from …
s&box CameraComponent: Screen/World Conversion, RenderToTexture, Priority, Viewport, and Oblique Projection
s&box CameraComponent: Screen/World Conversion, RenderToTexture, and Priority wraps a and provides the main rendering configuration for a s&box scene. Every sce…
s&box built-in component quick reference — rendering, physics, navigation, UI, and audio
s&box Component Quick Reference A cheat sheet of the most commonly used built-in components and what they do. Rendering Lighting Physics Navigation UI Audio Gam…
Editor Tools
Editor Tools Create custom tools for the s&box editor. Creating a Tool Scene Access Gizmo Drawing Preventing Selection Overlay UI Editor Project Setup Tools mus…
Sandbox: Duplicator tool — copy, paste, and save contraptions with DuplicationData
Duplicator Tool — Copy, Paste, and Save Contraptions The Duplicator tool copies a contraption (a connected graph of GameObjects) to JSON and pastes it back. It …
RenderOptions: Game, Overlay, Bloom, AfterUI Render Layers — and Renderer.Attributes for Shader Parameters
RenderOptions: Render Layers for SceneObjects controls which render layers a component's appears in. It's exposed as a property on all subclasses. Render Layers…
s&box ScheduleBase: NPC schedule base class
Abstract base class for NPC schedules. A schedule executes a sequence of tasks with cancellation support. Properties Methods Behavior Executes tasks sequentiall…
s&box BaseNpcLayer: NPC behavior layer base
Abstract base class for NPC behavior layers. Layers provide specific services (navigation, senses, speech) for tasks to use. Properties Methods Usage Inherit fr…
s&box SpeechLayer: NPC speech and subtitles
NPC behavior layer that manages speech state, plays sound files, and renders subtitle text above the NPC's head. Properties Methods Behavior Resolves a random s…
HudPainter: Immediate-Mode HUD Drawing in s&box
Each has a property (HudPainter) for immediate-mode drawing onto the screen. More efficient than UI panels since there's no layout, stylesheets, or interactivit…
DebugOverlay — in-game visualization for spheres, lines, text, and traces
DebugOverlay — In-Editor and In-Game Visualization draws shapes, text, and traces in the world for debugging. All draws are temporary and disappear after a spec…