Simplification and reprojection

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    chris

    try taking the full res textured version. and the low res model to xnormal. and reproject textures there.

    you probably also want to manually unwrap at least the low res version first.

    keep in mind you need to export the high-res version as one texture.

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    Alice

    Unfortunately I'm not experienced enough to do that.

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    Lucia CR

    Dear Alice,

    your issue is probably caused by the large simplification of the model, as has already been said. Large simplification of the surface causes small, yet significant movements of the surface which leads to discrepancies between the textures. Based on our experience, we generally recommend to simplify models 10 times at most to preserve the detail which does not cause problems in the texture.

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    Götz Echtenacher

    Hi alice,

     

    wit you saying that the original model was 33m, all is said!  :-)

    Even your 10k model is at 1/3300 of the original size, way beyond anything that I've ever seen. Look at the edges of the wall or the cigarette stump for example.

    As lubenko explained, 1/10 is a rough guideline for a mostly loss-free simplification.

    I do much more than that (from a few hundred m to usually around 10m, but it highly depends on the object and the purpose for which the model is intended. For example if you take pictures at always the same distance of a very uniform but complex object (e.g. a plant), you will notice a strong simplification sooner than a relatively simple object (building exterior) where you also took images at very different distances. The reason is that in the latter, a lot of detail from the close-ups can fall to the wayside without influencing your intended level of detail.

     

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    Alice

    More triangle count is not possible for me as I create game models.

    Even 10 k is too much for this object.

    So there is no other solution than using an external program, and the current solution for this is the final solution and it will not be improved?

     

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    Alice

    Can you not integrate InstantMeshes?

     

    I know Modo and Remake use it.

     

    https://github.com/wjakob/instant-meshes

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    Alice

    Or how could I use it?

    When I have run InstantMeshes, and I have a nice UV unwrap, how could I bring that to RC?

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    Götz Echtenacher

    Hi alice,

    if you have created a low poly mesh with external software, you can import it.

    There are quite a few threads dealing with that, so I am sure you'll find what you need.

    Just bear in mind that RC can only process tri meshes.

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    Mike Simone

    I would love for the guys from Valve to create a course just on this issue. I would gladly pay for it!

    I am running into a similar problem but slightly different, I create a low poly flat surface for simple surfaces in Modo but running into a different problem with it texturing looking odd and not lining up with the high poly mesh perfectly.

    P.S. Gabe and friends if you are listening please put together a class on this :)

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    chris

    i use rc with lots of other software like instant meshes, xnormal, 3dsmax etc...

    there's really not point trying to get everything done in one piece of software. esp if your trying to take it to games.

    rc dose somethings really well, and other things not so well.

    you just have to take the good bits and work around the not so good bits. 

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    Alice

    ReMake, which I used a lot until it expired, had EXCELLENT unwrapping skills.

    I didn't have to leave the application ever.

    It used "Instant Meshes".

    Is it not possible to get a clear statement by the RC guys telling more about if they're working on an improvement of the current situation?

    Chris' sentence "you just have to take the good bits and work around the not so good bits." is an excellent statement.

    But as a wanna-be-user I would like to see a statement by the RC guys telling me if this is perhaps solved in the next update or if it's the same since 2 years and will most likely not be changed.

    I mean some user experience interaction with the customer in spe might help.

    Thank you.

     

     

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    Lucia CR

    Dear Alice,

    Of course, the application has been being improved every single minute of our work hours with respect to variety of our users’ needs,

    Unless playing with filtering of unnecessary parts and model simplification, together with other settings, is not enough for you here now (which usually is), I recommend you to try a combination with other post-processing software.  

    By the way, are you struggling just with this dataset regarding this issue?

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    Alice

    Thanks for the info.

    This is the first set that I spend much time with on RC.

     

    Lubenko, can you suggest where I should send an alignment failing image dataset?

    Should I just upload to Google Drive and post the link here?

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    Lucia CR

    You can use our contact form to send it to us privately (you will need to upload it somewhere and provide us with the link): https://www.capturingreality.com/Contact. If you do, please refer to this forum topic (the exact forum link), specify your needs, and write us the e-mail your RealityCapture license is assigned to.

    However, unless it is private data, I highly recommend you to share the dataset with our community here.

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