alicevision / Meshroom

3D Reconstruction Software
http://alicevision.org
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the 3D model create finished , i use tool open the obj file, why the 3D model is reverseed[question] #1772

Open q449278118 opened 2 years ago

q449278118 commented 2 years ago

Describe the problem A clear and concise description of what the problem is. the 3D model create finished , i use tool open the obj file, why the 3D model is up-down Screenshots If applicable, add screenshots to help explain your problem. this is reverse side

image

this is front, I reverse the upper picture

image

Dataset If applicable, add a link or few images to help better understand where the problem may come from.

Log If applicable, copy paste the relevant log output (please embed the text in a markdown code tag "```" )

Desktop (please complete the following and other pertinent information):

Additional context Add any other context about the problem here.

natowi commented 1 year ago

I remember a similar case some time ago: https://github.com/alicevision/meshroom/issues/1112 (no real solution, sorry)

Are the camera positions correct?

I think somewhere the software assumes it has to create the "back side" of the model. This occurs in my experience sometimes with top down aerial images. At the moment I can recommend opendronemap for aerial image reconstruction.