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I Guys welcome to expression again and this is live as you are from a school online that come now in



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the previous lecture we have created a pie chart like this and it's crazy we duplicated the layers we



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ended up with six letters.



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Now what happens if you have you know 12 charts or six chars that you want to display each one of them



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for a certain size figure.



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How would you do it.



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Would you duplicate or layer would you play compose.



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And most importantly what would you do when the values change.



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Now in this lecture I'm going to show a simple matter where they are going to use a control to be able



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to set the values using of course expressions for the percentage and it's going to be a lot of fun and



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pretty easy.



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So the first thing I want to do is to play compose these three letters.



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I'm going to put them in a separate composition and I'm going to call it by one.



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Now I have hit by one and open it and look exactly what I have if I'll press eat twice I will have the



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source text linked to the end in this composition and also linked to the Trimm path.



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And of course I have here the PI.



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So the first thing here that it's all controlled by the values of these two keyframes and that inside



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this composition.



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So how do I what I will come to pie chart here.



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This is the main one I'm going to create a new layer.



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I can create any kind of layer I can create a null object a shape even on an adjustment that I would



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go for adjustment that I will open the adjustment layer here and go to a facsimile set and look at control.



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OK.



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Now in control the last one will be slider control here.



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Step one slider control and drop it.



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See how it works.



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I'll take another slider control and drop it.



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That's not pretty good.



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I should have come here says control.



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I want to make it very clear.



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And if I read this one and duplicate this one I will have control by two.



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So what is a slider slider slider.



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It goes from 0 to 100.



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But of course you can even make it 500 600 whatever he could he won.



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So I would come to the slider here and keyframe at zero come to two seconds here and make it 100 percent.



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So my slider Now if I press you I will find it's going from zero to 100 percent.



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Good luck this player here.



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So it doesn't go away.



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It stays here.



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I will go to PI and look at my end.



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I will remove the keyframes from the end and bring it to the beginning because 0 for example if you'd



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like and open the expression now I will use the whip to link the end to controlled by a 1 slider as



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simple as this.



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Now this is what's happening.



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It goes from 0 to 100 percent.



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If I go to my main competition I go to the Laskey frame.



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If I change the value here then it's working fine.



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And here you are.



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So I have created a control for my composition here or for the PI.



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Now I can replicate that and play the control by two.



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Let's go to one before and what we'll do we use the area of interest or region of interest and just



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drop it as much as we need.



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That would be OK and come back second position.



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Club comp region of interest come back to the main one now and have you know this is the adjustment



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that I would just hide I have here a pre-camp I can size it put it here.



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That's good.



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Go to my project.



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I need to go to the project.



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I just want to click here and duplicate this by now.



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I have you.



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I will open by two.



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Let's look at the expressions.



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I press easy and not is here what do we have we have composition.



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Now the composition is not this gun.



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It is by chart domain composition from the pie chart composition.



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You take layer adjustment.



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OK.



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That name is too long.



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Let's go to pie chart.



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Make adjustments there.



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I want to see the name press and there's a control that sense I'll get this from the control or the



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percent come back to buy one.



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You know does it change the name.



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Come back to buy to look at it carefully from composition pie chart.



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Take their control percent and then take the effect that is inside this layer.



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So if you come to a pie chart you'll notice here control percent layer has an effect and this effect



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is controlled by one and controlled by two.



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So actually you are linking the effects now.



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And from controlled by one big effect called slider.



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OK.



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So we have the slider here.



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This is the effect is called slider when you came to here.



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You're not as you have slight of control.



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So that's the effect you are taking from here right now.



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I don't want controlled by one for two.



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I want controlled by two.



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And here we are.



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And now if I come back to my main chart and go to a project by two and drop it I will come to control



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by two and keyframe at the same.



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I can confirm the slider here at zero come to two seconds or before or after anytime you want.



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I make it a certain figure for example you notice how the slider can go beyond 100 let's say 55 and



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now I have full control of all my buys in the within the control percent layer.



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And that is very powerful.



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You can move your keyframes them faster and so on.



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Let's create another PI.



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I will go to buy to duplicate that it's become pie 3.



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I will open by 3 and right here just by 3.



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OK.



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That's the slider.



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Now the slider doesn't exist.



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Let's go back here.



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Take this one and duplicate it.



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That's like the three it corrected here.



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Fine.



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It seems it's working.



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I would come to the project deck by three Robert here and I can make it smaller.



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Ok I will go to control by three.



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It is already keyframe.



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And here you are.



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You have it.



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Let's move it this way.



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And now you have many graphs.



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Of course you can adjust them.



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You can lay them out the way you want to make them you know quite interesting.



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But also you have the power to come to the background here it change the color of the background here



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to whatever you want.



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OK you notice that the pie has a color feel we remove it.



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Let's move it.



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Now you change colors come back to buy one.



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And here you have so many things.



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How do you control this.



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That's very easy.



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You can't come to the control preset here layer and change your keyframes do whatever you want.



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Make them you know come longer with more time or less time.



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The way you like it and what we do learn here we learned how to use the preset this has an effect.



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In fact the control one and it's a slider control slide controls are very much used and you can't really



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create a lot of control with the slightest control.



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Also duplicating slider control and controlling from one single there is a lot of power for you lots



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of simplicity and peace of mind that you know if you have to change your fingers you change the percentage.



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It's very easy just in one single place.



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Now I hope I explained everything to you because there is a lot here that can be done and there is a



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lot of creativity.



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I would like you to go to after effects and start using the slider control.



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Of course you have color control control and stories like this here that we will use later in this course



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and learn about them.



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And this is the section about expression control let's remove the control here.



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And if you come to expression control you click and you see you have three different control angle controlled



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checkbox colors and so on that are very powerful that will be used later on.



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Thanks very much for listening.



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I hope this was very useful for you.



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Please go to aftereffects.



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Do your first pie chart compose it and make as many pictures as you want.



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Organize them in a beautiful way you like you know make them all with circles and you can adjust them.



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Put them on the side.



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Change the colors and create your project.



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Now not this this is not only infographics.



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It can work for anything for any project you are doing or even for on work and it will help you a lot.



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Thanks very much.