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Thread: Terrible geometry on Revit imports

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    Senior Member philvanderloo's Avatar
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    Default Terrible geometry on Revit imports

    Why am I getting such jacked up geometry on my Revit import models?
    I'm in max 2016 using Revit link import. Trying every import option. Doesn't seem to make a difference on the quality of the geometry
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    Veteran Member VelvetElvis's Avatar
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    Default Re: Terrible geometry on Revit imports

    Blame Revit. That's just crappy Revit-to-Max geometry for you.

    Though, what is in the viewport really doesn't matter. It can look like a mess in there but still render perfectly.
    Scott S.

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    Default Re: Terrible geometry on Revit imports

    Yep thats just how Revit creates its geometry. Its not that well optimised but it should render ok still.

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    Senior Member philvanderloo's Avatar
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    Default Re: Terrible geometry on Revit imports

    Ya I keep thinking there's an improvement around the corner. My last project had all kinds of light leak issues
    Thanks Scott.

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    Default Re: Terrible geometry on Revit imports

    I would recommend to export to FBX first, then link to Max organized by Family. Yes REVIT geometry triangulate very bad but that wall looks extra crappy . Unless they have a little angle they should import "OK". Needless to say the people who send me the REVIT models are not good either. Those light leaks are common for mee too. It is hard to tell when you are doing CD's on REVIT if a wall is joint or not, within REVIT environment is very easy to make sloppy modeling without noticing if your task is not model for rendering.
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    Default Re: Terrible geometry on Revit imports

    Hey Scott, how do you deal with the wrong scale issue in REVIT??
    I am still linking first to max 2014 then open in 2016
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    Veteran Member Justin Hunt's Avatar
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    Default Re: Terrible geometry on Revit imports

    Quote Originally Posted by fco3d View Post
    I would recommend to export to FBX first, then link to Max organized by Family. Yes REVIT geometry triangulate very bad but that wall looks extra crappy . Unless they have a little angle they should import "OK". Needless to say the people who send me the REVIT models are not good either. Those light leaks are common for mee too. It is hard to tell when you are doing CD's on REVIT if a wall is joint or not, within REVIT environment is very easy to make sloppy modeling without noticing if your task is not model for rendering.
    linking the revit file and exporting an FBX is essentially the same thing, ie when linking the revit file , Max takes care of the fbx export.

    Only advantage with you doing the export is that you can decide what to export by hiding the stuff you dont want.

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    Senior Member elipan's Avatar
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    Default Re: Terrible geometry on Revit imports

    Set your Max units to inch and display units to what you want. This solved the scaling issue for me
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    Default Re: Terrible geometry on Revit imports

    I have to set my max units to feet then revit imports seem good. but what i end up doing is leaving my max units to inch, then i grab the entire fbx import and first unlink all. then i reset reset xform then collapse to individual pieces. disadvantage is that all instances get de-instanced.

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    Default Re: Terrible geometry on Revit imports

    I've heard some people use the free Revit to Lumion bridge plug-in to export it, them import that to 3ds. I tried it awhile ago but don't remember being impressed, so the results must not have been very good.

    There's also some discussion on the UE4 forums about exporting them as DWG solids, this give pretty good results, especially with round objects (it doesn't fix all the problems though). There's no real 'good' solution though that I can find.

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