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Guys and welcome to this new lecture and this lecture we are going to go profession actually within



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after affects what you are going to learn is like just beginners or intermediate skills.



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It is not so hard to create this.



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But the applications are really professional.



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Any professional video editor will want this work from you.



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And of course you can use it on top of all your videos.



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We are going to create video Matt.



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That's what I call them video Matt is when we create a composition and we will use masks to create certain



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areas that are transparent and animated.



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We take this composition and make it a video and then we use this video on top of all other videos to



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create a mat.



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If it is within after effects or in any non linear video program non-linear means that we can have layers



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on top of each other and they affect each other when they are on top.



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Nonlinear meaning there are next to each other and really players don't interact at all.



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Let's create a new composition and we call it video months.



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Now the size here will play a big role.



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You are going to map videos that the size can vary from a tiny resolution of four 80 to 40.



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So it will be very good to create the highest resolution possible in After Effects.



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If you are using CC 2017 go for USD for k and then you are sure that your Mott's will cover any video



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and then we will make it five seconds.



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Of course you can make it longer or shorter depending on your needs but actually it is not very important



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as long as your mission is within the five seconds then the video that can stretch your video or make



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it shorter or cut it in pieces do whatever he wants with the mats.



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I would like.



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Ok here is that I already toggle the transparency on because I want to see what's transparent and what's



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not.



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I would come now and create a solid layer to start creating the masks take a solid layer and give it



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a different color less color a bit darker.



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For now to see exactly what's happening with us later on you will have to change its color.



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I would click and create the first mask I move it to the outside it seems.



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Not outside in the middle something like this.



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And you can always change this.



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Then duplicate that mask by pressing control and selecting the second mask and moving it lets give it



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some space in between.



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I will do the same on other controls the move this one over here.



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Another control the.



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And also move it over here.



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I'm trying to have the same spacing in between Musk's another control the movie ops is too big no problem.



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So I select all the masks and click on the mask on the border of the mask.



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Now that became one entity that I can fully transform for example doing them here and make them a bit



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bigger maybe and position them any way we want.



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That would be no problem for later on.



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Unfortunately I cannot use a line or press enter to confirm it.



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Now I want to animate the masks but there is a big problem.



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Look at your mask is exactly your mask are transparent from the outside and nontransparent from the



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inside.



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So actually they are not actually as much as they are acting as cover up.



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I need to change that.



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I take the first mask and make it inverted.



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It inverted everything else.



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Now the first mask has a transparent background meaning I can see through when I put it on top of the



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other video.



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The second mask here I cannot invert because it will invert.



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So the first mask.



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I would go out and use substract.



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And here I am using substract for all of them not as there is now.



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The result is we have exactly created a map that can work anywhere.



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You have transparency inside the masks and non-transparency outside the mask.



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And this is exactly what you want to use.



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Now we need to animate this.



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Of course you can use it as it is but is not very interesting.



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I would click on the leg press and click on the first layer press control is select all the mask path



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and go to one second keyframe or the mouse pop come back to the beginning.



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Now one by one I'm gonna meet them take the first mask the first mask but click on the border and take



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it up for example take the second mask.



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Click on the border for example at the bottom one and take it down.



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OK the third mask now and click and take it up OK.



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That's called Force mask.



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Same.



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Take it down.



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Be patient with me and the last Moskow so we click and take it up.



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So actually we have a very simple animation here.



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If you are not press spacebar call and your not is the transparency I can see then what I'm looking



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at is the transparency.



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And that is very important.



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Now let's open here.



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Select or are keyframes.



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Give them easy is come the graph and do something nice here.



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Stop the animation.



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Select all of them and let's move them to two second a shift to stay on the line.



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Click on the handle and move it to the side.



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I like this kind of alleviations call now it will do well.



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I think you are in the Senate.



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Here you are.



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They come very nicely.



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So we have created now video.



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It's actually a pre-camp that has a background and has transparency.



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How do we use this.



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Let's go to our ad clip and create a new copy.



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This is our ad lib that is the movie inside.



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I will dig our video Amadis.



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This is now a composition.



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I would drop it on top.



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I'm not sure what's happening.



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It will cover everything.



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Yes that's true but there is transparency and this is what we are going to see.



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Now let me play it.



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A press preview and that is what's happening.



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The transparency is working very fine but of course our layer is very big.



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Let's right click on it and say transform and fit to come up.



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And now you have something very different and it's very beautiful.



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Good.



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Now usually we are not going to use this great background like this.



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It is not really nice or lets you have a specific request or you start adding effects on the solid layer



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like a ramp up or gradients or stories like this or give it that actually if you'd like but usually



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a single card like this will not work.



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People don't like it so I will DoubleClick again on the video maties over here.



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I will come to the solid layer go to layer solid setting and make it the black This is of course for



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the course.



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And here you are now you have a pretty professional mask that you can use on top of any video.



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And this is very powerful.



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And the next lecture what you are going to do is render this video might make it a video or a movie.



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In fact if we start video and use it and see exactly how it will affect the lives that I see you in



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the next lecture.