Effect Questions

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-MajinLink-
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Effect Questions

Post by -MajinLink- » Sun Dec 05, 2004 4:18 pm

How is this done exactly, showing thin lines of the video. Can you use Premiere to do it or will you need After Effects?
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Also what are the names of these effects?
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Scintilla
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Re: Effect Questions

Post by Scintilla » Sun Dec 05, 2004 6:18 pm

-MajinLink- wrote:How is this done exactly, showing thin lines of the video. Can you use Premiere to do it or will you need After Effects?
http://img.photobucket.com/albums/v136/ ... n/ques.jpg
You can use Premiere. Use the Crop or Garbage Matte effects to show just one strip of the video, then copy it to a higher video track and adjust the settings to reveal just the other strip. (And make sure the transparency settings are such that you can see both strips.)
-MajinLink- wrote:Also what are the names of these effects?
http://img.photobucket.com/albums/v136/ ... /ques2.jpg
I believe that's called a channel offset; it looks in this case as if the blue channel has been shifted to the left.
That's an Invert. It looks in this case like it might be combined with a slight channel offset as well.
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Post by rose4emily » Fri Dec 10, 2004 1:02 am

Alternately, you could define an alpha mask consisting only of black regions where you don't want to see any video (and transparency everywhere else), and then composite that over the original. It's easy to make these in most image editing apps, and can be much more flexible than using mattes drawn in a video editing program. You can achieve different results by using other compositng options (for example: using a "difference" setting for compositing, instead of "overlay", and a black-and-white matte is a great way to selectively show the "negative" of some regions of the image, and the "positive" of the other regions).

The others definately are channel offset and value invert.

If you want to create an offset effect, but using all channels (as opposed to shifting the individual color channels relative to one another), you could also composite two copies of the same stream, using a partial "dissolve" or "blend" (as the streams probably don't have stored alpha channels).

There is a caveat, though:

Photonegative effects and channel displacement both tend to look "tacky" in most uses. There are exceptions, but they're really meant more for the sake of correcting improperly captured or encoded footage than for messing with footage that already has the intended colors and color phase. This means you should consider using them judiciously. Mattes really can look good, especially if done right, and can do a lot to add silhouette value to some plain-looking footage, join disparate pieces of footage within a frame, and provide a shifting "window" on the footage through which part of the action can be seen, and the rest must be inferred.
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godix
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Re: Effect Questions

Post by godix » Fri Dec 10, 2004 10:18 pm

-MajinLink- wrote:Also what are the names of these effects?
I believe those two effects are called tacky and overused.
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Post by -MajinLink- » Thu Dec 23, 2004 2:23 pm

Alrighty thanks guys.

Hmmm, I was wondering if anybody could tell me what the name of this effect is?

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And how to do this?
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and
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If somebody could help me, I would really appreciate it. Thanks! ^^

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Post by badmartialarts » Thu Dec 23, 2004 2:52 pm

The top one is called edge detection or Find Edges or something like that (in Premiere, anyway). Gives that stentil look that can be a good contrast effect.

The bottom two are just the same think as the other bars done above. The first one with the bars they used some sort of Invert on the main picture and then overlaid the original picture back over it. Nice technique, really. The second one is one shot of Rock's face overlaid on a shot of his whole body which is also a interesting way to inject more emotion into a scene without having to show both clips seperately.
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Re: Effect Questions

Post by -MajinLink- » Fri Dec 24, 2004 12:56 pm

How do make sure the transparency settings are set so you can see both strips?

And how do you overlay one picture over another? Like I showed in that picture.

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Kalium
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Post by Kalium » Fri Dec 24, 2004 1:36 pm

The overlaying is done the same way, with masking and mattes. You just put something different on top.

As fow how you set the transparency, well, experiment a little, and see where it gets you!

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Post by -MajinLink- » Tue Dec 28, 2004 11:05 pm

Thanks guys, I think I'm getting the hang of garbage matte now.

More effect questions. XD

I Re-uploaded new pics over the old ones, so that would be why they show up in one of my earlier posts.

I can obviousley tell that another video was put onto a different video track but what I don't understand is how the editor got it so dark. Usually when you lower the videos opacity the colors kind of decrease.

Also, in the last picture.. I don't know if this was an actually effect from the anime or not but it looks like everything else around the center picture had been cropped off after the editor lowered the opacity. How so?

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Scintilla
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Post by Scintilla » Tue Dec 28, 2004 11:33 pm

-MajinLink- wrote:I can obviousley tell that another video was put onto a different video track but what I don't understand is how the editor got it so dark. Usually when you lower the videos opacity the colors kind of decrease.
That first one looks like a "Screen" transparency effect. Either that, or "Multiply". I sometimes have trouble remembering which is which.
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