GS_Juice

GS_Juice is the game feel and feedback system. It provides motion-based visual feedback effects — screen shake, bounce, flash, pulse, material glow — authored as data assets and played on entities at runtime. GS_Juice extends the GS_Motion animation system with feedback-specific track types, so all timing, easing, and proxy targeting features are available for feedback effects.

For architecture details, track types, and the domain extension pattern, see the GS_Juice API.

Quick Navigation

Installation

GS_Juice requires GS_Core. Add both gems to your project.

For a full guided walkthrough, follow the Simple Project Setup guide.

Quick Installation Summary

1. Enable the GS_Juice gem in your project configuration.
2. Create .feedbackmotion assets in the O3DE Asset Editor.
3. Place FeedbackEmitter components on entities that need to play effects.

Feedback System

The feedback system is the core of GS_Juice. Feedback Motion assets (.feedbackmotion) define one or more animation tracks that play together as a feedback effect. The Feedback Emitter component plays a feedback motion on itself or on a target entity. Effects are additive — they modify properties relative to the entity’s current state, so multiple effects stack without conflict.

Two track types are included:

• Transform Track — Animates position offset, scale, and rotation using gradients. Ideal for screen shake, bounce, squash-and-stretch, and recoil.
• Material Track — Animates material properties (opacity, emissive intensity, color tint) using gradients. Ideal for hit flash, damage glow, and fade effects.

Feedback System API

See Also

For the full API, component properties, and C++ extension guide:

• Framework API: GS_Juice

For related systems:

• The Basics: GS_Motion
• The Basics: Utilities — Gradients

Get GS_Juice

GS_Juice — Explore this gem on the product page and add it to your project.