Cesium ION point cloud LAZ #2965
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Hi, we use loaders.gl 3.4.6 and recently we are facing error
That asset is at first imported to Cesium as archive as an archive composed of laz and traj files: Then we download the asset and upload it to locacl S3 minio storage from which it is served to deck.gl instance. As I wrote, the problem appeared relatively recently and concerns archives with the mentioned content (laz, traj files), which previously had no problem. We have not changed the way we create the source data or the technologies used. Is it some change in the data import on Cesium that we have not noticed and that causes this error in the current version of loaders.gl? Thanks for all your suggestions. |
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Replies: 1 comment 6 replies
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The discussion in #2949 comes to mind, as Cesium recently started to export 64 bit attributes from LAS files into PNTS tiles and also made some non-obvious choices about how to represent this in Draco encoding. Assuming the issue is a same, there is a workaround fix for this in loaders.gl 4.2. It should not be too hard to back port it to loaders.gl 3 should you wish to put up a PR: #2951 |
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Hi, thanks for you suggestion but still not working. I try to clone loaders.gl switch to release-3.4, make changes #2951 , build and copy
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Hmm it may be loading a pre-built worker from unpkg.com. You can check your network tab in your browser dev tools to see if that is happening. You could set the workerUrl in your DracoLoader options to point to your local worker. |
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Tried to put up a patch for 3.4, Unfortunately 3.4 build environment seems to have experienced some rot that could take more time to fix: #3006. |
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Many thanks! It is working with local worker. I made PR: #3007 |
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Sorry, I didn't realize you already made PR. I close #3007 . |
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The discussion in #2949 comes to mind, as Cesium recently started to export 64 bit attributes from LAS files into PNTS tiles and also made some non-obvious choices about how to represent this in Draco encoding.
Assuming the issue is a same, there is a workaround fix for this in loaders.gl 4.2.
It should not be too hard to back port it to loaders.gl 3 should you wish to put up a PR: #2951