Fabric Scene Delegate

The Fabric Scene Delegate is a new rendering architecture that uses Fabric as the primary source of truth for populating Hydra, replacing the previous usdImaging and OmniHydra plugins.

Contents:

• Overview
  • The Fabric Scene Delegate Goal
  • New Architecture
  • Compatibility
• Getting Started with FSD
  • Extension dependencies
  • Enabling Fabric Scene Delegate
  • Next Steps
• Key Differences Between FSD and OmniHydra
  • Quick Recap: OmniHydra Scene Delegate
  • Quick Comparison
  • Source of Data
  • Data Formats
  • USD to Fabric Synchronization
  • Summary
• Extension Development with FSD
  • Understanding the Architecture Around FSD
  • Who Should Read This
  • Choosing Your Workflow
  • USD-only Workflow
  • Fabric-only Workflow
  • Mixed USD/Fabric Workflow (Not Recommended)
  • Additional Resources
• Fabric Transforms with FSD and IFabricHierarchy
  • About
  • Fabric Transforms Previously
  • Fabric Transforms with Fabric Scene Delegate and IFabricHierarchy
  • Code Examples
  • Timesampled Transforms
  • Backward Compatibility Layer
  • Behavior when writing omni:fabric:worldMatrix
• Authoring Geometry with USDRT and Rendering with FSD
  • Create Geometry with USDRT Scenegraph API
• Configuration and Settings
  • Scene Delegate Preferences
  • Fabric Population Settings
  • Fabric Hierarchy Settings
  • Scene Delegate Settings
  • Command Line Usage
  • Performance Tuning
  • Configuration Examples
• Known Issues and Limitations
  • Fabric Transform Hierarchy Update
  • Scene Delegate Features
  • Performance Considerations

Overview

Learn about the goals, architecture, and design principles of the Fabric Scene Delegate.

Getting Started

Quick guide to enabling and using the Fabric Scene Delegate in your Kit application.

Key differences between Fabric Scene Delegate and OmniHydra

Comparison of features, data representation, behaviors, and synchronization strategies between FSD and the legacy OmniHydra system.

Extension Development with FSD

Best practices and patterns for developing Kit extensions that work effectively with the Fabric Scene Delegate.

Fabric Transforms with IFabricHierarchy

Working with transforms in Fabric Scene Delegate using the IFabricHierarchy interface.

Authoring Geometry for FSD

Best practices and guidelines for authoring geometry that works optimally with the Fabric Scene Delegate.

Configuration

Carbonite settings and configuration options for customizing Fabric Scene Delegate behavior.

Known Issues

Current limitations, known bugs, and planned improvements.