Transition into next scene transparently...

Julius_ wrote on 11/12/2011, 8:54 PM
Ever see those commercials where the guy opens a door and walks into a different set (or scene)? Or opens a windows and there's a seamless transition slide into the next scene.
I'm not really interested in the guy walking, but I'd like to know what's the best tool to get that done. (AE?)

I'm more interested in say a Bride sitting on the bed looking at the window and as I zoom into the window I would like to show the walking down the isle...without having the scene fade/flash to white...it's almost like doing a transition but not for the whole clip...and then slide it off once the 2nd scene is in full view. Hard to explain, but I hope you get the "idea".

I'm guessing that I need to mask it all out in AE, but haven't found any docs on it.

Thanks

Comments

Former user wrote on 11/12/2011, 8:56 PM
Probably would require either rotoscoping to track moves or chroma key or a combination.

Dave T2
TheHappyFriar wrote on 11/12/2011, 10:12 PM
If it's an easy shape (ie square/rectangle) and nothing is in front of it, use the mask in pan/crop to mask that part out. You'll need to keyframe but I'm betting it will be a lot faster then if had a bad screen shot you were trying to adjust with filters to key properly. That would be the way I would do it if I was using Vegas.

I'd say the hardest technical part is going to be matching the movements so they don't make someone sick or know it's 100% fake. :) Unless you want that surreal look, then the hardest part is the removing of the window. :)
farss wrote on 11/12/2011, 10:51 PM
Put green screen outside window, piece of cake from there. That way you can keep the bride's head in the as the camera moves from looking at bride's face to behind her added realism.

To me the ultimate "out the window" shot is this:



No "tricks", just extremely clever use of simple mechanics.

For anyone wondering how it was done, The Passenger, about half way down the page.


Bob.
Grazie wrote on 11/13/2011, 1:33 AM
This thread goes to the real core of editing.

Moving the narrative from one scene to another is what, we as editors, do all day. When done well it can add to the values of the vid. Designing-in transitions can be the best thing ever. Done well it is awesome. And y'know what, those the work the best are those you don't even register.

If there ever was a case for the "Walnut smashing the Sledgehammer", it's where a transition is imperceptible to the viewer, but the result is STUNNING!

- g
rs170a wrote on 11/13/2011, 7:44 AM


This is a lip dub that was done by a group of high school students from London, Ontario.
The teacher is a guy I grew up and I think he taught his students very well.
There are only three transitions, one at 1:57, the second at 2:30 and the last at 3.00.
IMO, all three were well done and did not distract from the video at all.

Mike
Baron Oz wrote on 11/13/2011, 9:10 AM
Yes, I would use AE and the motion tracker to follow a corner of the opening, then composite the new shot, attaching it to the motion path. If it's an odd shape, you'll have to draw a custom mask. Unless you are absolutely square to the opening, it's going to change shape and you'll have to adjust the shape of the composite overlay to match, but we're only talking about a couple of seconds here, so keyframing the mask shouldn't be too much trouble.

If you have the opportunity, I would use a green screen in the opening and still use the track motion to drive the composite motion. This technique removes the need for a custom, keyframed mask for the composite.

Ted
Rory Cooper wrote on 11/14/2011, 7:44 AM
You can simplify it

If the sun was behind the window flat your window and frame etc would automatically be a neg mask so no screen needed
If both are shot say right of thirds this would negate motion tracking so it’s now it’s the zoom speeds that need to match = easy enough.

Boris red has a color fade which can also be useful for what you require for unmatched shots.
Julius_ wrote on 11/14/2011, 10:34 AM
I really like the green screen method as it's very simple.

My only draw back is when shooting I have to make sure the light is even and it's another piece of equipment I have to bring around (plus it doesn't help with the existing footage that I have). Very cleaver. I'm going to try it out on my next shoot.

I might have to go with AE for the existing footage that I have (which is better for motion tracking CS4 or CS5?), but for future projects I'll position the camera better.

In that High school clip, all the rooms they enter are physically there, I would love to see where he opens the door and is in Paris...That Passenger clip was great!

Thanks

TheHappyFriar wrote on 11/14/2011, 10:47 AM
The best thing the motion tracking could be used for is tracking the motion of either the outside shot or the inside shot, then take the camera motion & use a computerized setup to move the camera for the other scene the same way so everything matches perfect.
Laurence wrote on 11/15/2011, 4:07 PM
>This is a lip dub that was done by a group of high school students from London, Ontario.

I've seen quite a few of these and this one is by far my favorite. Awesome job.