Animation / Rendering of big textured OBJ files

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    Wishgranter
    Hi LZCreation

    The only solution that I have tested is the VRay and its VRMesh format but even there you can get into RAM issues if the meshes are ultra big, say 1+ bilion triangles ( 1,7 bil tris + textures eat up to 200 GB RAM rendering in 1920x1080 ).
    But from experience, you can freely use the SIMPLIFY tool (to reduce a reasonable triangle count) and use texturing and you are able to render with almost the same quality results.
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    Ben Kreunen
    I use Terragen for some of my visualisation. e.g. https://www.flickr.com/photos/digitisation-uom/15323633787
    Many of the videos here: https://www.youtube.com/user/Aerometrex were also produced with this using models ~2Gb in file size.
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    LZCreation
    @Wishgranter : Is there a standalone version of Vray? If there isn't, in what software aure you using it?

    @Ben Kreunen : Wow! Your work is very impressive. I'm really interested to know about your workflow to reach such results.
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    chris
    i use 3dsmax and vray.

    i would like it if 3dsmax could handle more polys in viewport. but it dose fine with simplify. and you want to do really big stuff. then exporting parts and converting each of those to vray proxies will allow for very big areas.

    keep in mind you'll need some scripts for 3dsmax to batch import.
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    Wishgranter
    Hi LZCreation

    they have a stand-alone app but it still needs some CGI software supporting Vray to get it working.
    But it all depends on what you need to solve with the renderings, as full resolution rendering of meshes is not always the best solution.
    If it is just for presentation, then you can use some free software and not such high-resolution models, speaking from experience, even a 1,7 bil tris model simplified to 20-30 mil triangles + textures can look like a full resolution model...

    PM me to milos.lukac@capturingreality.com for further discussion…
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    Ben Kreunen
    I'm not responsible for Aerometrex's work ;) But they have shared some of their work on the software's forum. As it's frame by frame rendering they used relatively low quality settings to get a workable render time... But I have loaded similar sized models into it. As Milos suggested it comes down to matching what you're trying to do/achieve.
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    chris
    maybe you should check out blender first.

    its free, and has vray support (though 3dsmax and maya have much better vray support)

    but you shouldn't even need gi for these meshes, so vray may be overkill. but it dose allow for very high mesh counts.
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    yoz
    Hello,

    I have the same problems than LZCreation. I search a software which can render animation of big meshes with big textures. I want to navigate in the 3d model, make annotations and add elements like vectors, surfaces and volumes. I will see a demo of Rhinoterrain (Rhino3d plugin), it's about 2500€. It can import LAS files or OBJ files with textures, edit them, interpolate, calculate DEM and contour lines, add vectors objects. It works in real coordinates (projection system).

    Do you know other commercial softwares than can do these sorts of tricks ?

    Thanks in advance.

    Regards.
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    Wishgranter
    Hi

    Just testing one very interesting solution for rendering. It should be able to process even BIG meshes, like V-ray can...
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    LZCreation
    Good news, Wishgranter! I'w waiting for more...

    I've tested rendering in Cinema 4D. Results are good, but for now I tried it with 6Mtris only.

    I had some problems importing OBJ files direct from RC to C4D, but I solved that by loading and saving the model (OBJ format) using CloudCompare. Incompatibility between RC and C4D OBJ files ???
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    Wishgranter
    Hi LZCreation

    I had some problems importing OBJ files direct from RC to C4D, but I solved that by loading and saving the model (OBJ format) using CloudCompare. Incompatibility between RC and C4D OBJ files ???


    Yes, C4D has an issue with importing the OBJ, their OBJ importer is quite OLD…
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    Manlio Esposito
    In cinema 4d 17 the obj importer is totally new and it doesn't import obj from CP. :-(
    Older Cinema version can import and you only need to reassign texture (because texture loading is unsupported).
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