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Displacement help anyone? Footage disappears!

Posted: Mon, 22nd Nov 2010, 3:49am

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Azulon'sAssassin

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Ok, so this is how the procedure goes:

1: Import footage and drop onto Canvas.

2: Mask as needed and invert the shape.

3:Click composite

4: click displacement map

5: then Canvas goes black until I delete the mask and the displacement filter


Any help? It can't be the view, because it always says " project overview cached." It's driving me nuts!!!!! Any help is apreciated.
Posted: Mon, 22nd Nov 2010, 5:58am

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Axeman

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A displacement filter displaces the layer below the effect, based on the shape and color of the layer it is applied to. So to properly do the effect, it works like this:

Import background layer.
Import greenscreen footage of person that is meant to be displaced.
Key greenscreen layer, so only the person remains.
Add Displacement filter to the greenscreen layer. This layer will now disappear (as it should), and the background layer will be distorted based on the shape of the keyed person.
Posted: Mon, 22nd Nov 2010, 2:31pm

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Azulon'sAssassin

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Ok. I think I understand. Basiclly, I import what the green screen will be ( like the fantasy background or something), then I import the actual greenscreen shot, key and garbage matte as usual so that its on the fantasy background, then I mask and do the displacement?
Posted: Mon, 22nd Nov 2010, 11:12pm

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Axeman

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You added masking into the process I described. Certain shots might require masking, but it is not part of the displacement process.

All that is required is two layers, with the top layer keyed. Then apply displacement to the top layer.
Posted: Tue, 23rd Nov 2010, 2:49am

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Azulon'sAssassin

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oh OK THANKS
Posted: Wed, 2nd Feb 2011, 2:53am

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Azulon'sAssassin

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Ok, I know I'm digging up an old topic here, but I posted another thread a while ago with a question, and no one's answered, so I thoguht I'd try my luck here.
Basic thing: I need to place a bit of "pure displacement." Mabey to try and visualize the Force or magic or something. How can I do this?

Thanks!
Posted: Sat, 12th Feb 2011, 10:05pm

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Azulon'sAssassin

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Hey, people. I'm trying to do a test and here's what happens:

Import picture

Go to grade

click "Displacement"

Picture disappeares.


What am I doing wrong?
Posted: Sun, 13th Feb 2011, 3:54am

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spydurhank

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Copy the footage and apply the displacement map to the second copy.
If you want to limit where the displacement should be... add some masks to the top layer and animate the masks if needed. You may need to invert the masks.
Posted: Sun, 13th Feb 2011, 1:26pm

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Azulon'sAssassin

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Oh, thanks.
Posted: Sun, 13th Feb 2011, 5:19pm

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Axeman

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The layer you apply the displacement composite to will ALWAYS disappear. Always. The layer below it on the timeline will get distorted based on the shape and color of the displacement layer.
Posted: Sun, 13th Feb 2011, 11:15pm

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Azulon'sAssassin

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Oh, wich is why if I do a displacement of the layer ontop of the black it goes away?
Posted: Sun, 13th Feb 2011, 11:39pm

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spydurhank

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Normally you'll want to shoot a blank background with no actors but... something tells me that you may have not done this. wink
That's fine and it's no big deal. See... you need footage underneath the layer that you're applying the displacement map to, otherwise you're just turning all of your footage transparent... so you need pixels under the displacement layer in order for you to be able to see the effect actually displace the image underneath it... be it a photo, another video, or animated background.

Check out this very easy to understand tut I made, I used a green screen but you can do the same thing as long as you have a blank background and use masks.

http://www.youtube.com/watch?v=ReFl9TYayZU
Posted: Sun, 13th Feb 2011, 11:51pm

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Azulon'sAssassin

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Oh thanks. Nice tut buy the way.
Posted: Sun, 13th Feb 2011, 11:59pm

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spydurhank

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You are very welcome. Now go shoot some footage and practice. biggrin
The more you shoot the better you'll become.