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Thread: Radiosity, animated

  1. #61
    and he gets great imagery, animated. So it's possible.
    It is possible to animate rigid objects with the animation cache. Objects such as a chair rotating would work but not humans walking etc. Anything that means that the mesh is changing shape over time (deforming).
    Its not a matter of opinion. Its officially documented that deformations are currently unsurported by interpolated GI.
    http://www.newtek.com/forums/image.php?type=sigpic&userid=18493&dateline=130857  4707

  2. #62
    Nothing ado about much Exception's Avatar
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    Drstrik: if you liked the radiosity guide I wrote, perhaps also check out the AA guide I wrote: http://www.except.nl/lightwave/aa/index.htm

    If you have any specific questions, shoot.

  3. #63
    Scene Destroyer DrStrik9's Avatar
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    Thanks, Exception. All your tutorials are very helpful. :-)

  4. #64
    Quote Originally Posted by toby View Post
    Done more tests, looks like motion blur only minimizes flicker, can't seem to get rid of it, unless maybe if it were set high enough to take much longer than other methods.

    Let's set the wayback machine for 2006, when Kray rendered this anim, with something like 8 bounces, no cg lights, no cache, in about two minutes a frame, and with deforming geo.
    http://rapidshare.com/files/238721850/DrunkenZombie.avi

    LW hasn't even caught up with that yet.
    Done some more tests with motion blurred radiosity and I'm getting very decent results with higher settings. I can't see the artifacts in my animation scene that were in the test scene. Ended up with 96 rpe, 0.5 min spacing and 6 passes classic motion blur (and it's enough passes that I can turn off aa too). Worth a shot if you want gi on a deforming animation. Otherwise I can also recommend DP's Dome light, set to use the backdrop image, your HDR. LW's dome works, but with only one, single, solid light color over the whole scene, the lighting is really boring.
    Last edited by toby; 06-02-2009 at 02:43 AM.
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  5. #65
    inSPIRAL jay3d's Avatar
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    Quote Originally Posted by toby View Post
    Done some more tests with motion blurred radiosity and I'm getting very decent results with higher settings. I can't see the artifacts in my animation scene that were in the test scene. Ended up with 96 rpe, 0.5 min spacing and 6 passes classic motion blur (and it's enough passes that I can turn off aa too). Worth a shot if you want gi on a deforming animation. Otherwise I can also recommend DP's Dome light, set to use the backdrop image, your HDR. LW's dome works, but with only one, single, solid light color over the whole scene, the lighting is really boring.
    Now that's what i was talking about
    glad u made some tests.

    and in addition to that it will make striking results when combined with PR MB that still other engines failed to do properly

  6. #66
    Quote Originally Posted by jay3d View Post
    Now that's what i was talking about
    glad u made some tests.

    and in addition to that it will make striking results when combined with PR MB that still other engines failed to do properly
    Erm... it doesn't work with pr motion blur, that's why I used classic.
    http://www.newtek.com/forums/showthread.php?t=99069
    Perhaps someone with a PC can confirm it too?
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  7. #67
    LightJustice Panikos's Avatar
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    Any shortcuts or compromises in accuracy lead to flickering results.
    In order to get more consistent results you need to dedicate more time in the calculations.
    But again, flickering is there, you cannot eliminate it completely unless you consider all parameters in the GI calculation.

  8. #68
    inSPIRAL jay3d's Avatar
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    Some test using PR MB multipass with Interpolated GI (aka Irradiance Caching).

    plz tell me if u notice some flickering

    Note: change .doc to .exe self extracting arch
    Attached Files Attached Files

  9. #69
    Electron wrangler jwiede's Avatar
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    Any chance you could provide it in a format that doesn't require us to blindly run it (and hope no malware snuck into the executable)?
    John W.
    LW2015.3UB/2019.1.4 on MacPro(12C/24T/10.13.6),64GB RAM, NV 980ti

  10. #70
    Man of many cells. shrox's Avatar
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    Quote Originally Posted by SAHiN View Post
    I understand your dillema, as I had to discover my own ways to get around animated radiosity.. 80 mins per frame sounds about right depending on your system.. I am not sure what kind of projects you are working on but, you have to be project-wise to use radiosity. I think u should check the tutorial posted on previous message.
    If your lights are not moving in a scene, you may wanna cache radiosty to save render times.. My experience is every scene will require its own solutions when it comes to radiosity.. ( later on today I will try to post an animation with radiosity..maybe it will help to talk over that one)
    Yes, the pain of HDTV. Rendering takes about 4 times as long as NTSC. I do try to squeeze by with 720, but I stiil aspire to 1080.
    shrox www.shrox.com
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  11. #71
    Quote Originally Posted by jwiede View Post
    Any chance you could provide it in a format that doesn't require us to blindly run it (and hope no malware snuck into the executable)?
    No doubt. Nobody needs self extracting archives anymore. Everyone has Zip support, and Zip compression is good enough. It's not the best, but it is good enough. None of them save much on our type of content anyway.

  12. #72
    inSPIRAL jay3d's Avatar
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    Here is it in rar format:
    Attached Files Attached Files

  13. #73
    Quote Originally Posted by jay3d View Post
    Here is it in rar format:
    Was this multi-threaded, and did you try my test scene?

    Btw, VRay was doing this with no issues, cache or not, and the same sampled motion blur, back in '06, and it was crazy fast.
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  14. #74
    inSPIRAL jay3d's Avatar
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    Quote Originally Posted by toby View Post
    Was this multi-threaded, and did you try my test scene?

    Btw, VRay was doing this with no issues, cache or not, and the same sampled motion blur, back in '06, and it was crazy fast.
    Yup i tested your scene, just change the angular tolerance to 22.5 as it will enhance the quality of rotational gradients on curved surfaces.

    this one was multithreaded and it was rendering 15s on each frame on my dual core.

    EDIT: make sure to enable Directional rays too, to make it even more compatible with PR MB
    Last edited by jay3d; 06-03-2009 at 12:14 AM.

  15. #75
    Super Member geo_n's Avatar
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    Quote Originally Posted by jay3d View Post
    Some test using PR MB multipass with Interpolated GI (aka Irradiance Caching).

    plz tell me if u notice some flickering

    Note: change .doc to .exe self extracting arch
    no flickering. but there's no other light source and simple object.
    vray has anim prepass function in sp build that can do deformed radiosity easier.
    and well.. Finalrender is tops.
    Then again these renderers cost almost as much as lw.

    This guy showed us his demo at work not really an fx specialist but a lighting specialist. used vray anim prepass he said.
    http://www.vimeo.com/2413135
    http://www.vimeo.com/3902592
    http://www.vimeo.com/4468888

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