Creating Post-Process Effects: BasePostProcess with Volume Blending and Shaders
Create custom post-processing effects in s&box by deriving from . This enables volume-based blending and custom shader rendering. The Component Key Methods GetW…
Sandbox: Weld tool — FixedJoint constraint with EasyMode rotation
Sandbox Weld Tool — Constraint Creation with EasyMode Rotation The Weld tool creates constraints between two GameObjects. It has an EasyMode that lets the playe…
SkinnedModelRenderer: Animation Events (Footstep, Sound, Generic, AnimTag) and Sequence Playback
SkinnedModelRenderer Animation Events and Sequence Playback Animation Events exposes callbacks for animation events defined in the model's animation graph or se…
BasePostProcess: Custom Post-Processing with GetWeighted, BlitMode, and PostProcessVolume Blending
BasePostProcess<T>: Custom Post-Processing Effects with Volume Blending is the current (non-obsolete) base class for post-processing effects in s&box. It replac…
ScenePhysicsSystem: Physics Sub-Stepping at 120Hz, Collision Event Routing, Keyframe Colliders, and Editor Physics
ScenePhysicsSystem: How Physics Steps Work in s&box is the built-in that drives physics simulation. Understanding it explains the physics step order and collisi…
Voice Component: Push-to-Talk, Lip Sync Visemes, ExcludeFilter, ShouldHearVoice, and Amplitude
Voice Component: Voice Chat, Lip Sync, and Viseme Morphs The component handles voice chat recording, transmission, and playback with optional lip sync. Basic Se…
s&box Hotload System: How Code Reloading Works, SkipHotload, ConVar Persistence, and NetworkObject.OnHotload
s&box Hotload System: How Code Reloading Works s&box supports live code reloading (hotload) without restarting the game. Understanding how it works helps avoid …
Execution Order - s&box Documentation
Execution Order Understanding the order in which component methods are called. Flowchart Component lifecycle follows a specific order: Constructor — Object crea…
Your First Project - s&box Documentation
Your First Project Creating Game Objects In s&box, everything in your scene is a GameObject. GameObjects can have Components attached to them that provide funct…
Mapping - s&box Editor Documentation
Mapping s&box includes Hammer, the Source 2 level editor, for creating maps and environments. Build worlds with brushes, props, lighting, and gameplay entities.…
Backend Services - Achievements, Leaderboards, Stats
Backend Services - Achievements, Leaderboards, Stats Integrate Steam backend services for player progression, competition, and analytics. Achievements Track and…
Terrain System — heightmap creation, material painting, and sculpting
Terrain System s&box terrain is a heightmap-based landscape system with material painting, sculpting tools, and built-in LOD. Terrain data is stored in a reusab…
Playing Sounds - s&box Sound Documentation
Playing Sounds s&box provides multiple ways to play audio. From simple one-shots to complex 3D spatial audio with full control. SoundEvent Create reusable sound…
Reporting Errors - s&box Documentation
Reporting Errors How to report bugs and issues with s&box. Issue Tracker Report bugs on the s&box issue tracker: Search existing issues first Create a new issue…
Engine Frame Loop Order: FrameStart, Scene Tick, and FrameEnd Sequence
Engine Frame Loop Order The s&box engine frame loop runs in a specific order each frame. Understanding this is important for knowing when your code runs relativ…
s&box GamePreferences: User preferences
GamePreferences Static Class GamePreferences is a static class that defines the local user's preferences for the game. These ConVars control player-specific set…
ActionGraph Component Actions - s&box Documentation
ActionGraph Component Actions Add ActionGraph behavior directly to GameObjects using the ActionGraph component. Component Actions The ActionGraph component lets…
FixedUpdate Internals: Step Counting, Spiral of Death Prevention, Time.Scope, and ApplyForce vs ApplyImpulse
FixedUpdate Internals: How the Fixed Timestep Works in s&box The s&box fixed update system uses a step-counting approach rather than accumulating time. This is …
Animation - s&box Documentation
Animation s&box supports skeletal animation for characters and objects. Animate models using imported animations, blend between states, and control playback fro…
ModelRenderer: Body Groups, Material Override, Material Groups, Shadow Modes, and LOD Override
ModelRenderer: Body Groups, Material Override, Shadow Modes, and LOD renders a static (non-skinned) model in the world. It creates a in the . Basic Usage Body G…