Investigate first-frame heuristics for our default examples #5156
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🪳 bug
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examples
Issues relating to the Rerun examples
heuristics
Heuristics for placing views, fallback provider, etc.
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Feb 9, 2024
### What The first-frame heuristics of objectron sometimes produce really bad results:  (top-right corner is a 3D view with 2D elements in it). In the interest of getting a release out today, and not giving first users a bad impression, this PR removes Objectron from the example page. It is not a very pretty example anyway. ### Related issues * #5156 * #5154 ### Checklist * [x] I have read and agree to [Contributor Guide](https://github.com/rerun-io/rerun/blob/main/CONTRIBUTING.md) and the [Code of Conduct](https://github.com/rerun-io/rerun/blob/main/CODE_OF_CONDUCT.md) * [x] I've included a screenshot or gif (if applicable) * [x] I have tested the web demo (if applicable): * Using newly built examples: [app.rerun.io](https://app.rerun.io/pr/5155/index.html) * Using examples from latest `main` build: [app.rerun.io](https://app.rerun.io/pr/5155/index.html?manifest_url=https://app.rerun.io/version/main/examples_manifest.json) * Using full set of examples from `nightly` build: [app.rerun.io](https://app.rerun.io/pr/5155/index.html?manifest_url=https://app.rerun.io/version/nightly/examples_manifest.json) * [x] The PR title and labels are set such as to maximize their usefulness for the next release's CHANGELOG * [x] If applicable, add a new check to the [release checklist](https://github.com/rerun-io/rerun/blob/main/tests/python/release_checklist)! - [PR Build Summary](https://build.rerun.io/pr/5155) - [Docs preview](https://rerun.io/preview/49097fb6d0b36ac10840101262e5a4b6abb87ca4/docs) <!--DOCS-PREVIEW--> - [Examples preview](https://rerun.io/preview/49097fb6d0b36ac10840101262e5a4b6abb87ca4/examples) <!--EXAMPLES-PREVIEW--> - [Recent benchmark results](https://build.rerun.io/graphs/crates.html) - [Wasm size tracking](https://build.rerun.io/graphs/sizes.html)
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I believe the concrete issue is fixed by Since the 2D heuristic then very rarely suggests Overall related to: I think there's an even higher level issue of the heuristic right now not being able to touch existing views, all we do is additive and this causes a lot of issue. |
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cargo rerun reset, then open objectron over a slow internet connection, and you sometimes get this:As 3D spaceview with a 2D image in it.
Most of the time though I "just" end up with this:
A weird extra space-view, taking up most of the screen.
It would be nice with a way to test all our examples on a slow connection, to find weird first-frame heuristic issues.
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