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Harry Potter Invisible Cloak Ideas.

njsnjs Posts: 71
in The Commons

While working on Daz Studio, I thought about trying to model a Harry Potter Invisible Cloak without the use of Green Screen or Blue Screen. Does anyone have any Ideas of how to model one?

Comments

  • agent unawaresagent unawares Posts: 3,513

    1. Take figure.

    2. Make all nodes below the neck invisible.

    If I was going for some kind of chameleon effect I'd probably either drape a piece of fabric over a standing figure's head or use an existing long cloak and then do a lot of work with nearly transparent shaders and opacity maps. Maybe just straight up make it of a transparent material with just high enough refraction to make wavy effect.

  • DaWaterRatDaWaterRat Posts: 2,885

    I'm not aware of any way to partially hide a character without some form of greenscreening and postwork.

    A relatively easy way is to use pwCatch (sadly not free) but that requires using 3Delight, rather than iray.

  • Cris PalominoCris Palomino Posts: 12,482

    Moved to The Commons as this was not a freebie or a product suggestion. ~Mod

  • dragotxdragotx Posts: 1,147
    DaWaterRat said:

    I'm not aware of any way to partially hide a character without some form of greenscreening and postwork.

    A relatively easy way is to use pwCatch (sadly not free) but that requires using 3Delight, rather than iray.

    It's pretty easy actually, you can individually hide portions of the body using the visibility icon (the little eye on the left side of it's entry in scene tab) for each part you want to be invisible.  You'll have to watch edges, because you'll be able to see the inside of the model from the wrong angle, but I've used this method several times (mostly to keep it from having to load the textures of a character that is mostly off screen).  

  • DaWaterRatDaWaterRat Posts: 2,885
    dragotx said:
    DaWaterRat said:

    I'm not aware of any way to partially hide a character without some form of greenscreening and postwork.

    A relatively easy way is to use pwCatch (sadly not free) but that requires using 3Delight, rather than iray.

    It's pretty easy actually, you can individually hide portions of the body using the visibility icon (the little eye on the left side of it's entry in scene tab) for each part you want to be invisible.  You'll have to watch edges, because you'll be able to see the inside of the model from the wrong angle, but I've used this method several times (mostly to keep it from having to load the textures of a character that is mostly off screen).  

    I'm aware of that, but if you only want to hide part of an arm, or a head, there's no way to do it without post.  I should have been clearer.

  • agent unawaresagent unawares Posts: 3,513
    DaWaterRat said:
    dragotx said:
    DaWaterRat said:

    I'm not aware of any way to partially hide a character without some form of greenscreening and postwork.

    A relatively easy way is to use pwCatch (sadly not free) but that requires using 3Delight, rather than iray.

    It's pretty easy actually, you can individually hide portions of the body using the visibility icon (the little eye on the left side of it's entry in scene tab) for each part you want to be invisible.  You'll have to watch edges, because you'll be able to see the inside of the model from the wrong angle, but I've used this method several times (mostly to keep it from having to load the textures of a character that is mostly off screen).  

    I'm aware of that, but if you only want to hide part of an arm, or a head, there's no way to do it without post.  I should have been clearer.

    You can use transparency maps. Just have to be careful of angles still.

  • AnotherUserNameAnotherUserName Posts: 2,727
    agent unawares said:
    DaWaterRat said:
    dragotx said:
    DaWaterRat said:

    I'm not aware of any way to partially hide a character without some form of greenscreening and postwork.

    A relatively easy way is to use pwCatch (sadly not free) but that requires using 3Delight, rather than iray.

    It's pretty easy actually, you can individually hide portions of the body using the visibility icon (the little eye on the left side of it's entry in scene tab) for each part you want to be invisible.  You'll have to watch edges, because you'll be able to see the inside of the model from the wrong angle, but I've used this method several times (mostly to keep it from having to load the textures of a character that is mostly off screen).  

    I'm aware of that, but if you only want to hide part of an arm, or a head, there's no way to do it without post.  I should have been clearer.

    You can use transparency maps. Just have to be careful of angles still.

    Yah, this is a good idea. If you hid all of the associated body parts and then created transmaps for sleeves, collars and whatever else you needed, you could make a convincing invisibility cloak. It would be nice however if you could add a shimer to your cloak just for effect.

  • RKane_1RKane_1 Posts: 3,039

    The only way I know how to do it would require Photoshop or some other decent painting/photomanip package.

  • rames44rames44 Posts: 336

    Re: making only part of a arm (or whatever) invisible: Could you use the geometry editor to create separate surfaces (i.e. "Part of arm to be visible" and "part of arm to be invisible") and then assign a cutout opacity of 0 to the parts that should be invisible?

  • MarcCCTxMarcCCTx Posts: 943
    edited September 2017

    Does it have to be IRay? If not, some creative use of PWGhost might work. https://www.daz3d.com/pwghost

    Or if you have to use IRay may you could figure how SkelliBoo works.https://www.daz3d.com/skelliboo-spooky-textures-for-precious The Boo textures have some transparency, but I haven't looked closely at them.

    Post edited by MarcCCTx on
  • The DiigitalsThe Diigitals Posts: 380
    rames44 said:

    Re: making only part of a arm (or whatever) invisible: Could you use the geometry editor to create separate surfaces (i.e. "Part of arm to be visible" and "part of arm to be invisible") and then assign a cutout opacity of 0 to the parts that should be invisible?

    Yes should work! Been having fun with that today :)

  • The DiigitalsThe Diigitals Posts: 380

    You could also try making a cloak that has a perfect mirror finish, depending on the setting could look pretty invisible. It would'nt work in real life as the texture of the fabric would be too rough so the mirror wouldn't be perfect.

  • MarcCCTxMarcCCTx Posts: 943
    edited September 2017

    3Delight Render pwGhost

    imageimage

    Cloaked.jpg
    600 x 600 - 226K
    Cloaked2.jpg
    600 x 600 - 368K
    Post edited by MarcCCTx on
  • darren_dd9be07039darren_dd9be07039 Posts: 59
    edited September 2017

    There's a thread, cannot remember which one, where Mec4D described how to use primtives etc as shadow catchers and also make parts of an object invisible in iray. It was in reference to integrating a figure into a photographed background. There was also a video she did showing how to do it.

    You could use the "blocking" shader on the cloak object to make the covered parts of the body invisible.

    If you go to YouTube and search "Mec4D Iray matte" there are several videos

    Post edited by darren_dd9be07039 on
  • DaWaterRatDaWaterRat Posts: 2,885
    edited September 2017

    Okay, so I forgot that pwCatch's actual catch feature wound up broken at some point.  I usually use it for catching or casting shadows, which is how I used it here.

    This took 3 passes.  1 with pwCatch set to catch shadows on the cloak and the girl invisible, one of just the girl with the rest set to matte black, and one mask layer.  It's just a proof of concept, or I would have done something more dynamic.

    The second one is without the pwCatch, and just a render without the girl, and then with the girl compositied in using the same mask setup.

    Cloak of shadows 1.png
    1200 x 900 - 1M
    Cloak of shadows 2.png
    1200 x 900 - 1M
    Post edited by DaWaterRat on
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