Understanding Composition Arcs | OpenUSD Community Office Hours
In this first session, we focus on one of the most important and challenging domains on the exam: composition arcs and LIVRPS strength ordering. This livestream is part of a multi-week series designed to help you prepare for the OpenUSD Professional Certification. Each week covers a different exam domain with practical examples, mental models, and live Q&A. This session focuses on: - Composition arcs: sublayers, inherits, variants, references, payloads, specializes - LIVRPS strength ordering - Opinion resolution and value sources - Debugging unexpected values in layered USD files - Exam-style trace-through questions - Mental models for solving multi-layer composition problems - Practical pipeline considerations 🎟️ Reserve your #NVIDIAGTC 2026 certification spot: https://nvda.ws/4riFpr0 📅 Add the OpenUSD prep course to your calendar: https://nvda.ws/4kEbQhi 🎥 Watch the full prep series: https://youtube.com/playlist?list=PL3jK4xNnlCVf3HuZD4qOWlKlouJyh6Prb&si=JXpXQbFD7-snbq84 ---------------------------------------------------------------------------- Key Moments: 0:00 Introduction to OpenUSD Certification Series 1:14 What is the OpenUSD Certification? 3:01 Exam structure and candidate profile 4:38 Why start with composition arcs 6:26 Composition exam breakdown 9:06 What is composition and what are opinions? 12:26 Layers and sublayers 14:32 Inherits explained 17:42 Variants and variant sets 19:52 References vs payloads 22:41 Specializes 26:34 Mental model for composition arcs 27:51 LIVRPS strength ordering walkthrough 29:10 Exam-style USD trace example 33:25 Identifying composition arcs in multi-file setup 37:16 Resolving displayColor step-by-step 39:59 Types of composition exam questions 41:20 Common misuse patterns 42:48 Collaboration and layering best practices 44:33 How to practice effectively 48:52 Study resources 51:13 Live Q&A 59:57 Debugging inherited opinions demo 1:06:48 Glossary clarification on “opinion” 1:19:20 Series wrap-up and next session preview ---------------------------------------------------------------------------- 📆 Check out the full calendar for all of our upcoming events → https://nvda.ws/3JqaWnA ---------------------------------------------------------------------------- ⬇️Get Started → https://nvda.ws/4cZAZO1 👀Explore OpenUSD → https://nvda.ws/3CeozBQ 👥Join the Community → https://nvda.ws/3ZMfc6e #OpenUSD #USD #OpenUSDCertification #3DPipeline #CompositionArcs #LIVRPS #USDDeveloper #TechnicalArt #DataEngineering #PipelineEngineering #3DWorkflows #NVIDIAGTC #Omniverse #USDTraining