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Invisibilty

Posted: Fri, 13th Jun 2008, 8:42pm

Post 1 of 14

StupidLikeAFox

Force: 1075 | Joined: 7th Jun 2008 | Posts: 235

VisionLab User

Gold Member

First of all im new to fxhome so be nice!

Basically i was thinking what would be a good way to make someone invisible without needing to use a greenscreen.So this is how i made a quite a realistic effect kind of like the one in heroes.

This is what we will be doing form 2:24 to 2:26

http://www.youtube.com/watch?v=reGMDR9pxvM

Okay lets get started,

First of all have a background plate.

(you want to have it not moving so try to use a tripod)

Then have another plate of your actor like doing something to turn the, invisible.

Okay now make a mask in any shape and then click animate put it over your actor and then look down to transparcy. It will be on 100 but you want to move it down to 20. Then move to the next frame and move to 30 keep on going up in 10ns till 100 and there you go!

Hope this helps!
Posted: Sat, 14th Jun 2008, 3:15am

Post 2 of 14

FXhomer46784

Force: 493 | Joined: 24th Dec 2007 | Posts: 329

EffectsLab Pro User Windows User

Gold Member

Maybe I'm just not understanding you correctly, but if I am:

1) So long as nothing in the background has moved, you shouldn't actually need to do any masking for this to work (just use the transparency slider on the track with your actor instead).

2) Wouldn't you only need two keyframes, one on the first frame of the effect (transparency=20) and one on the last (trans.=100, or vis versa) so long as you are just changing it in an increment of 10 (or whatever) each time?

This is certainly the right idea though.
Posted: Sat, 14th Jun 2008, 8:27am

Post 3 of 14

StupidLikeAFox

Force: 1075 | Joined: 7th Jun 2008 | Posts: 235

VisionLab User

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First of all i dont understand how you would be able to make the person go tranparent without a mask. Also if you were looking to do a more complicated fade rather than the whole body just dissapering, For example in the clip the bottom two sides start to dissapear and then his upper then does. You would have to use about three masks. And for when he is going transparent you want to make a mask then turn it down to 10 then next frame 20 next frame 3o next frame 40 unitl youre up to 100.
Posted: Sat, 14th Jun 2008, 3:22pm

Post 4 of 14

FXhomer46784

Force: 493 | Joined: 24th Dec 2007 | Posts: 329

EffectsLab Pro User Windows User

Gold Member

FXhomer50990 wrote:

Also if you were looking to do a more complicated fade rather than the whole body just dissapering, For example in the clip the bottom two sides start to dissapear and then his upper then does. You would have to use about three masks.
Okay, I see what you're saying here now.

FXhomer50990 wrote:

First of all i dont understand how you would be able to make the person go tranparent without a mask.
You could so long as you kept it simple and made the whole actor disappear at once (and assuming there are no other actors in the shot). This is what I thought you were trying to do at first. The track with the background plate and the actor both have the same background, so making the entire track (the one with the actor) transparent would make just the actor transparent (the rest of the shot is identical on both tracks, so you wouldn't actually see it change.

FXhomer50990 wrote:

And for when he is going transparent you want to make a mask then turn it down to 10 then next frame 20 next frame 3o next frame 40 unitl youre up to 100.
Since you are using even increments of ten per frame, you only need to set the first and last frames and the program will fill in the rest. That's how keyframing works. Maybe this will help: http://en.wikipedia.org/wiki/Keyframing
Posted: Wed, 25th Jun 2008, 8:13pm

Post 5 of 14

FXhomer36251

Force: 0 | Joined: 25th Jun 2008 | Posts: 7

Member

I tryed this and it keeps trying to play the background and my clip making me look like a ghost like half invisible and seee through

but im trying to accomlish this effect

http://www.youtube.com/watch?v=7xwho-Wb6DI

anyone help me out??
Posted: Wed, 25th Jun 2008, 8:44pm

Post 6 of 14

FXhomer46784

Force: 493 | Joined: 24th Dec 2007 | Posts: 329

EffectsLab Pro User Windows User

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If you mean you want someone to disappear behind a blanket, you'll probably need to use a completely different approach. Sorry, I'm not sure what the best way to do this is.
Posted: Wed, 25th Jun 2008, 8:45pm

Post 7 of 14

FXhomer36251

Force: 0 | Joined: 25th Jun 2008 | Posts: 7

Member

well i learned it from a tutorial and it worked for them so thats why i was wondering
Posted: Wed, 25th Jun 2008, 8:47pm

Post 8 of 14

FXhomer36251

Force: 0 | Joined: 25th Jun 2008 | Posts: 7

Member

can u help me with just makin layers and stop it from showing thru making me look like a ghost
Posted: Wed, 25th Jun 2008, 8:52pm

Post 9 of 14

FXhomer46784

Force: 493 | Joined: 24th Dec 2007 | Posts: 329

EffectsLab Pro User Windows User

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Are you using EffectsLab or Vision Lab?
Posted: Wed, 25th Jun 2008, 8:53pm

Post 10 of 14

FXhomer36251

Force: 0 | Joined: 25th Jun 2008 | Posts: 7

Member

effects lab
Posted: Wed, 25th Jun 2008, 9:00pm

Post 11 of 14

FXhomer46784

Force: 493 | Joined: 24th Dec 2007 | Posts: 329

EffectsLab Pro User Windows User

Gold Member

Then that's normal unfortunately. ELab doesn't have as many blend modes as VLab does, which causes this to happen.

Either get Vision Lab or Composite Lab, or if you can't afford that, export each layer individually from EffectsLab with an Alpha channel (see the "render-->render settings" box) and re-layer them in another program (such as your editing program). Yes, it is hard to see what you are doing this way, but ELab really isn't set up to composite things other than the effects engines.
Posted: Wed, 25th Jun 2008, 9:27pm

Post 12 of 14

FXhomer36251

Force: 0 | Joined: 25th Jun 2008 | Posts: 7

Member

ok thansk so much i got composite lab and it worked just 1 more thing can u help me..my video is like playin at 2x as fast as it should and i didnt touch nothing and its only playing about 3 seconds of it...

how do i fix that>??
Posted: Wed, 25th Jun 2008, 9:40pm

Post 13 of 14

FXhomer46784

Force: 493 | Joined: 24th Dec 2007 | Posts: 329

EffectsLab Pro User Windows User

Gold Member

Yeah, the 2x speed thing means one of two things:
1) your frame rate is set wrong
2) you have your progressive/interlaced settings set wrong

Both of these are set when you start a new project. Make sure they match the footage you are importing.



As for only playing 3 seconds, I'd check your in and out points. You can also go to "render-->auto in-out" (might be called something slightly different, I don't have ELab on this computer to check for sure) or somewhere there is a setting to either play just the in to out vs. the whole timeline.

If in and out points aren't your problem (aka only 3 seconds of video shows up on the timeline at all) then I have no clue.
Posted: Wed, 25th Jun 2008, 9:45pm

Post 14 of 14

FXhomer36251

Force: 0 | Joined: 25th Jun 2008 | Posts: 7

Member

Ok I got it Thanks so much for helping me out!!



-Rob