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How to Make a Transparent Video Using Adobe After Effects

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How to Make a Transparent Video Using Adobe After Effects Powered By Docstoc
					Perhaps you have seen websites using transparent video and wondered, "How did they
do that?"

The subject is videoed in front of a green screen. Adobe After Effects keys out the
green screen using a multitude of different keying systems. Without a doubt, the
easiest and best keying system offered by Adobe is the Keylight (1,2). After Effects
then renders the alpha channel version of the video in FLV using On2 VP6 codec
format.

"This keying method was used in the following scores of films: Harry Potter and the
Chamber of Secrets, Die Another Day, Blade 2, Resident Evil, Harry Potter and the
Sorceror's Stone, the Beach, Notting Hill, Sleepy Hollow, Chicken Run, Lost in Space,
The Hudsucker Proxy, The Truman Show, Armaggeddon, The Big Lebowski, Mission
Impossible, Last Action Hero, The Saint, Strange Days, Little Buddha, Waterworld,
The Quick and the Dead and many, many more."

Once you have used Adobe's Keylight (1,2) to make the background transparent, you
can use special software to show your transparent video. The transparent video lives
in a layer called dhtml and the video shows the alpha channel video without a
background. The background that you see, is the web page. It is a nice effect.

Since the video is created without a background, you see just the subject. Actually, the
background was a green screen or a blue screen. By using After Effects, you key out
the background and you end up with just the alpha channel. Here is an example page
using transparent video, RichDayHealthPlans.com

You must purchase the correct software, to show the alpha only, but it isn't too
expensive. I use Josh Anderson's transparent video player product because it has many
features such as the video staying on the page as you scroll. You can trigger another
video after the first one is done running. You can scroll down to a particular portion
on a page, such as the sign in form. These are just a few of the features.

Although this is more advanced video than just uploading a video to YouTube, it pays
off rather nicely. You may have some trouble finding After Effects software on eBay
or elsewhere. It isn't sold as a separate item. You need to purchase one of their suites
of products.

Actually, you could download their software and test it for 30 days. Perhaps you could
even do what you need to have done in 30 days. Take the time to learn how to do this
and you will be on the cutting edge of website marketing using website video.

				
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posted:1/23/2011
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