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More displacement problems!

Posted: Wed, 24th Nov 2010, 2:57pm

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Azulon'sAssassin

Force: 1108 | Joined: 26th Oct 2010 | Posts: 648

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Gold Member

Ok, so I figured out how do do displacement. Only problem is that the whole layer is displaced! how can I make is so that only part is displaced?
Posted: Wed, 24th Nov 2010, 3:03pm

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Simon K Jones

Force: 27955 | Joined: 1st Jan 2002 | Posts: 11683

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FXhome Team Member

Displacement will always apply to the entire layer.

If you want to create the illusion that it's only working on a specific part of a layer you want to do this:

1. Copy and paste the layer so that there's 2 copies of it on the timeline, directly on top of each other.
2. On the top layer, draw a mask around the area that you want to be displaced.
3. Invert the mask.
4. Apply the displacement to the top layer.

The top, masked layer will be displaced, and you'll be able to see the (identical except for the displacement) other layer below, so that it looks like it's only applying to a specific part of the frame.
Posted: Wed, 24th Nov 2010, 4:41pm

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Axeman

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SuperUser

Alternately, instead of the mask that Tarn mentions, you could use greenscreen footage for the top layer, and key out the green.
Posted: Wed, 24th Nov 2010, 8:33pm

Post 4 of 4

Azulon'sAssassin

Force: 1108 | Joined: 26th Oct 2010 | Posts: 648

VisionLab User Windows User

Gold Member

thanks guys!