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Hi guys and welcome to the challenge tutorial.

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Before we start any meeting let's not just what we have and think exactly how can we do this.

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Any mission with the least amount of work possible.

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This is the trick in motion graphics is trying to find the simplest way the most efficient way.

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How are you going to create this animation with the minimum work possible.

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Let's look at our animation.

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We have the sensor wheel over here.

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It's turning.

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Of course we have the bars that are turning in sync with the center we now the wagons are also turning

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with the sensor really not this they have a kind of a motion path if you like that is also circular.

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Just like the center.

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But in addition to that the wagons are staying up straight.

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You want to think about it.

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How are you going to keep them up straight.

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What kind of emotional are going to use to keep them you know always facing down you notice.

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Let's take our ferry not the final one.

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I'll close this one.

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And that is exactly what we have.

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Within the last of course this design is imported from Illustrator.

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That all that defines.

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So we got this in the composition here.

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After importing it has created a camp.

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You'll see that later.

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But for now just have fun.

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You have all the wagons.

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Then we have the wheel.

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That is the central wheel.

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Then you have the structure I call the structure here.

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This is the bars.

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OK.

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I will undo that.

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And you have the means stand that surely we're not going to admit now and you have the background let's

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lock the stand and the back.

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Now also let's zoom in and select the wheel and the structure.

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And since you were working on objectifies fires we can make them surprise all the time so we can have

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you know some good resolution as you can see it has changed the resolution.

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First of all you're not is the anchor point of the wheel and the structure are perfectly aligned.

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OK.

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That's by luck or by design.

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So the wheel has the anchor on just over here.

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And the main structure also has the anchor born just over here.

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So it's easier really to Nimitz.

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Let's zoom out to 100 percent.

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Here you are.

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Now we understand that the wheel is going to drive the whole animation of course through palliating.

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Let's start Les.

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And he made the first rotation.

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Of course I will keyframe the rotation at the beginning of the composition press and to go to the end

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and give it a single rotation.

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I think that will be speedy enough actually for now.

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I have nothing now take the structure and put it to the wheel.

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So if you are in 2018 you will be being just from here.

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Now if you play our animation now of course the next step is to equip all the wagons to the we'll see

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how we do that select them all.

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Click on the pick me up and drop it on the wheel.

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Here you are if you play.

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Well fantastic.

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But now everybody is falling out of the wagons right guys.

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OK.

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That's not exactly what you want to do.

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So what is the solution.

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As somebody asked me OK can I use in the transform auto Orient.

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Well actually you cannot use auto guys because the wagons don't have a motion path.

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They are just equipped or printed to the wheel.

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And even if you try it is not going to work.

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Alfred for this wagon you know nothing is working fine.

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I will do that for the Orient.

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And then I would select all the wagons I need to rotate them to reverse the rotation of the wheel the

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wheel is going from 0 to 1 for rotation.

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These guys should go from zero to minus one rotation.

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That's what the whole exercise is all about is to learn how to inverse certain animations when you have

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used the parenting.

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Let's open our full rotation for all of them.

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If you are more.

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And then keyframe the rotation.

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I'm not going to make it minus 1 to zero.

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It doesn't make sense because it's a full rotation.

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I would go to the end and just come over and change the rotation to minus one.

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Here you are like almost nothing has happened.

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Let's see now what happened.

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If I play here you are down.

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So this is the logic you know how to reverse any mission or inverse if you like.

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So the wheel is rotating in this direction.

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The children are rotating in the other direction so this clockwise this is anti-clockwise.

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If you notice how this guy is rotating and as simple as this you learn now a very powerful technique

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of how to reverse animation.

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I took a very simple example but this kind of technique will be very useful for you later on.

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Thank you very much for listening.

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I hope this practice activity and challenge was fun for you.

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I will see you in the next lecture.