GS_Core
The foundation gem for the GS_Play framework — game lifecycle, save system, stage management, input, actions, motion animation system, and utility libraries.
Framework API
Component references, EBus interfaces, and extension guides for the full GS_Play framework.
This section contains the full technical reference for every GS_Play gem — component properties, EBus request and notification interfaces, extension patterns, internal architecture, and code examples.
If you are looking for a scripting-level introduction or editor setup guides, see The Basics section first.
How This Section Is Organized
Each gem section follows a layered structure:
Gem overview page — Technical summary of the gem’s architecture, a table of feature sets with component listings, and installation notes.
Feature set pages — One page per sub-system (e.g., GS_Save, GS_StageManager). Each covers:
- Architectural overview and core design pattern.
- Component and class index with purpose descriptions.
- Extension and customization guidance.
- Links to The Basics for editor-level usage.
Class and component pages — One page per major class or component. Each covers:
- Inspector properties and configuration.
- EBus request and notification interfaces with method signatures.
- Virtual methods for subclassing.
- Code examples for common use cases.
Pages in this section assume familiarity with O3DE concepts (components, EBuses, SerializeContext). If you need a gentler introduction, start with the corresponding page in The Basics — every Framework API page links back to its Basics counterpart.
Sections
GS_Audio
The GS audio framework — event-based playback, mixing and the full DSP effect palette, HRTF spatialization, and the premium Audio Pro tier adding visual graph authoring, geometric acoustics, scoring and voice synthesis.
GS_Cinematics
Dialogue graphs, cinematic staging, UI display, localization, and extensible condition/effect/performance systems for authored narrative experiences.
GS_Environment
Time of day progression, day/night cycle management, and sky colour configuration for GS_Play projects.
GS_GraphCanvas
A framework for building custom visual graph editors in O3DE — descriptors, nodes, variables, execution engines, and editor infrastructure.
GS_Interaction
Entity interaction systems — physics-based pulse events, targeting and cursor management, and extensible world trigger actions.
GS_Juice
Game feel and feedback motion system — GS_Motion extension with transform and material tracks for visual feedback effects.
GS_Performer
Modular character rendering via skin slots, paper billboard performers, velocity-driven locomotion, head tracking, and audio babble integration.
GS_PhantomCam
Priority-based virtual camera framework — composable stage pipeline, channel-aware instancing, blend profiles, influence fields, group targets, tug fields, and noise.
GS_UI
The complete UI framework — single-tier page navigation, motion-based animations, enhanced buttons, input interception, load screens, and pause menus.
GS_Unit
Character and entity control — unit lifecycle, player and AI controllers, input processing, movement, and grounding.