How to avoid boxy mesh/additional unneeded geometry

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    Lucia CR

    avoid using preview reconstruction

    and use a reconstruction region

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    jwa

    Thanks for your reply lubenko!

    This was done on high quality, and I actually want all of it to be meshed, so I did not use a reconstruction region.  Any other thoughts?

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    Götz Echtenacher

    Unfortunately, it cannot be avoided - it'd the way RC reates the mesh.

    You need to manually remove it...

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    jwa

    Remove it in RC, or elsewhere?

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    François CIVET

    Elsewhere, I use Meshlab

    free and very easy ;)

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    puffycheeks288

    Did you find a better way to fix this then deleting it out in another program? I haven't seen anyone else have this issue so there should be a way to reconstruct without a cube around everything.

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    jwa

    No, I have not found a better fix as of yet :/

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    Götz Echtenacher

    Unfortunately, it is inevitable at the moment. They wanted to re-introduce a convenient filter for this already months ago, but I guess it is still stuck in developement.  :-)

    Nobody else reports it because it's normal and the just deal with it!  :-)

    You can already achieve quite a bit by simply making the reconstruction region a tiny bit smaller and use Mark Triangles Outside Box to eliminate the largest triangles...

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    Stephanie C OMalley

    I am encountering this same issue with scans of people - This is very misleading/frustrating, as we got a full license based off the point cloud data that the demo version provides and are now extremely disappointed. We are reverting back to another software as it constructs these meshes without this additional geometry.

    This is occurring with photo-based reconstructions, which go a full 360 around the subject. Our other software interprets these photos correctly and we get a full human figure. Reality Capture is only able to construct half of the subject, with the back side being a box of geometry. What is going on?? There is clearly something wrong with the algorithm, as it is not even using half of the photoset.

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    Götz Echtenacher

    Hi Stephanie,

    The Demo doesn't work any other way than the full version. The box can randomly appear on 2 sides of the model - I guess it was on the bottom when you first tried it. Once you get the hang of removing it, it doesn't take too long. Especially with a person on a flat surface with no interference of any geometry from the sides, it should be pretty straightforward.

    The component breakup can be caused by many different reasons, hard to tell wothout any further info. It is true that it sometimes happens that other software aligns more that RC, but ultimately RC provides MUCH higher detail. Like all other software, it has a learning curve, unfortunately a rather steep one (I find) after the initial Oooh.

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    Stephanie C OMalley

    Gotz - The demo version does not construct a 3D mesh, it only allows this to be previewed in a still render. So that was deceptive, as the point cloud looks great.

    I am trying to determine why Reality Capture is throwing away half the photoset used to construct the mesh - other softwares that do Photogrammetry are not doing this with the same exact photos. In place of the back side construction, Reality Capture is creating this box of geometry. And yes, I could remove it, but this still does not solve the issue that half of the object remains un-constructed.

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    Götz Echtenacher

    It should create a mesh, otherwise there is nothing to render!  :-) But it won't let you export it, so I can understand that you missed that.

    About your alignment problem I can only say that there are plenty of threads here dealing with similar problems, so I suggest you check out those first. I would start in FAQ https://support.capturingreality.com/hc/en-us/articles/115001485012-How-to-put-together-more-components-

    If you then still have issues, then people here might further help you. Screenshots help enormously. But since this is a thread about the box issue, you might want to open your own or join inwith  a more specific one.

    If it helps anything, I think everybody goes through the initial problem with too many components...  :-)

     

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