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issues about rendered normal map

Open ymclsh opened this issue 3 months ago • 4 comments

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I tried to test on my own data. The generated meshes are mess. I found out that there are issues about the rendered normal maps which are generated from validate_normal_patch based. I attached the normalized one and the rendered one. Not sure if it causes the low quliaty of generated mesh. Do you know if any mistakes I made here?

Thanks for your time.

ymclsh avatar Oct 13 '25 07:10 ymclsh

It seems that the camera parameters are not correctly calibrated or handled, since the normal maps from different views appear to overlap when projected into the same view.

xucao-42 avatar Oct 15 '25 08:10 xucao-42

I re-aligned photos by metashape as you suggested. And convert to cameras_sphere.npz afterwards in order to have same coordinate system. Unfortunately the issue still remains.

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I don't know if it is related. I captured just two views to verify, and the target object is not complete. Do you aware what kind of mistake I made?

Thanks.

ymclsh avatar Oct 23 '25 07:10 ymclsh

I adjusted coordinate system manually. Now the loss seems not decreasing. How can adjusting parameters help. And the rendered normal map looks different. I think I solve the camera calibration issue. But there remains other issues. What 's your suggestions?

Thanks.

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ymclsh avatar Oct 26 '25 12:10 ymclsh

Finally I got mesh, but I think its quality is far away from expected.

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I'd like to confirm, does SuperNormal's coordinate system define the x-axis pointing right, the y-axis pointing up, and the z-axis pointing towards the camera?

Thanks

ymclsh avatar Oct 26 '25 22:10 ymclsh