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Marc Schier
fd7c88c136
# Description Adds a one-command federated OpenUSD site demo and fixes the composition path that previously produced an empty, overlapping, or poorly framed viewport. - Add `samples/OpenUsd/SiteCompositionServer/run-site-composition-demo.ps1` to build and start the pump, generator, and site servers, wait for every endpoint, publish the connector and viewer side by side, launch the federated viewport, and clean up child processes and artifacts. - Include every fetched root layer in the generated stage and prepare structural component composition before the retained renderer starts. - Continue persisting structural changes while forwarding value-only updates into the live viewport, avoiding renderer topology invalidation. - Fold structured translation, rotation, and scale values into `xformOp:transform` matrices in `UsdFileSink`, including time samples, so multiple pump and generator instances remain distinct when the stage is reopened. - Preserve the latest prior transform components when independently sampled translation, rotation, or scale history adds a new matrix sample. - Reframe the site camera to show all three default pumps and both generator sets. - Move the detailed root sample catalog to `docs/samples.md` and replace it with a concise link to the platform-independent samples and companion sample repository. Validation performed: - Ran the demo script through both its existing-viewer-bundle path and its default side-by-side publish path on isolated ports. - Ran the focused OpenUSD connector and file-sink tests: 30 passed. - Ran the full `Opc.Ua.OpenUsd.Tests` project: 919 passed; the remaining local failure is the existing culture-sensitive decimal formatting assertion on this host's `en-DE` culture. - Ran the focused review-feedback file-sink tests: 19 passed. ## Related Issues - Fixes #4392 ## Checklist - [ ] I have signed the [CLA](https://opcfoundation.org/license/cla/ContributorLicenseAgreementv1.0.pdf) and read the [CONTRIBUTING](https://github.com/OPCFoundation/UA-.NETStandard/blob/master/CONTRIBUTING.md) doc. - [x] I have added tests that prove my fix is effective or that my feature works and increased code coverage. - [x] I have added all necessary documentation. - [x] I have verified that my changes do not introduce (new) build or analyzer warnings. - [ ] I ran **all** tests locally using the **UA.slnx** solution against at least .net **framework** and .net **10**, and all passed. - [ ] I fixed **all** failing and flaky tests in the CI pipelines and **all** CodeQL warnings. - [x] I have addressed **all** PR feedback received. --------- Copilot-Session: 797ea461-49e2-4844-b6a4-54565a9469bd