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Displacement invisibility [ANSWER]

Posted: Thu, 28th Sep 2006, 10:37am

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Richard Summers

Force: 1850 | Joined: 2nd Feb 2005 | Posts: 47

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Gold Member

Does anyone know if there is a preset that produces the effect in BETWEEN THE LINES, that turns the guy semi invisible ?

The effect looks similar to the alien from the film PREDATOR.

If there is no preset available, does anyone know how to recreate it ?

Thanks in advance.
Posted: Thu, 28th Sep 2006, 10:47am

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Simon K Jones

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

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FXhome Team Member

You don't really need a preset, as it only involves a single filter!

If you open the 'Composite' toolset on any object, you'll see a displacement filter. If you add that filter to the current object, it'll then displace any other layers below it.

For the example of the semi-visible soldier, I did the following:

1. The soldier was filmed against a greenscreen, making him easy to isolate.

2. The greenscreen was removed using the colour difference key, and the soldier was composited onto the background (which, in this example, was a still image of a corridor).

3. The displacement filter was then added to the soldier. This made the soldier clip displace the corridor, giving the illusion of an invisible soldier.

The gradual appearance of the invisibility was achieved using a couple of animated masks.
Posted: Thu, 27th Aug 2009, 11:02am

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CryisisFX

Force: 10 | Joined: 25th Aug 2009 | Posts: 23

Member

Do You realy need a green screen or... can;t you just use, for example green paper or something green????
Posted: Thu, 27th Aug 2009, 1:57pm

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Axeman

Force: 17995 | Joined: 20th Jan 2002 | Posts: 6124

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SuperUser

As long as its green, then you will be fine. But it does need to be chroma green; many shades of green won't work very well, and will just cause you headaches.
Posted: Fri, 28th Aug 2009, 5:26am

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CryisisFX

Force: 10 | Joined: 25th Aug 2009 | Posts: 23

Member

thanks... wink
i have a green thing, i think its made from fabrics, and it has the same green as i can see for sale on internet... razz