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Author Topic: Import point cloud without normals compute  (Read 6802 times)

Paulov

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Import point cloud without normals compute
« on: December 14, 2023, 01:15:03 PM »
Hi.

Ocasionally I need to recolor a mesh using the point cloud that was used originally, but this time the point cloud has received some color corrections in Cloud Compare.

The import process takes very long in big data files of several GB. For a color transfer I believe normals would not be needed so my request would be to add the option checkbox to import a point cloud without computing the normals to have a quick loading instead fo 20-30 minute wait.

kgrover

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Re: Import point cloud without normals compute
« Reply #1 on: September 10, 2024, 10:12:42 PM »
I second this on my end! Would be great to have the option to disable normal calculation on import. They are not always needed.

ilia

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Re: Import point cloud without normals compute
« Reply #2 on: September 11, 2024, 01:30:02 PM »
+1
I know that it is influence the way points visualized, but would be great to import point cloud without it and have it having flat colors which do not change on the view angle (without normals)

Alexey Pasumansky

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Re: Import point cloud without normals compute
« Reply #3 on: September 24, 2024, 07:31:19 PM »
Hello all,

It is possible to ignore the calculation of the point normals, if the point cloud is imported via Python, just use additional argument:

Code: [Select]
Metashape.app.document.chunk.importPointCloud(path, calculate_normals=False)
Best regards,
Alexey Pasumansky,
Agisoft LLC