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Come to this story and the challenge and the challenge I asked you to use this video to replace the



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window here by another video which is this one now replacing with a video is the same as using a play



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composition.



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You put a solid and you are replaced.



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Now let's see the problems that we will have with this video.



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First of all eristic the habit to drag and drop to create your composition because now everything is



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in scale.



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The cup is the same size as the video and you don't have any problems.



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I will start a track camera.



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Click on it it will start analyzing.



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This is a short video of six seconds.



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Also is a simple one but you will be amazed how many arrows we gonna have.



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I hope you worked on it.



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I hope you found the arrows and I hope you asked me a lot of questions that is already finishing pretty



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speedy this time.



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It has the king fixed angle of view and if you look at the advance here it does take in other DECT fun.



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It is solving the camera.



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Now we give it some time and get back to you.



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Oh it's already done now.



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Not as soon as I pointed.



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I have a message says no.



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That's from a crackpot by Ban assault.



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So actually it didn't take it as a tripod Paran just took it as a normal camera and is not really working



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very fine with us here.



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We don't want to see the arrows so what.



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What is this error here.



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We can't figure it out.



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You can find the computation about it but it means there is no depth.



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There is no zoom and it cannot resolve how the camera is moving mainly on this spot where there is only



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the word fun.



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How do you solve this problem.



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You know I've read it so this probably can work.



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But better to solve that.



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Let's go to other the DECT and we take mostly flat as seen.



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And actually this is a flat.



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It we click and it will solve the camera again and see the results that will appear.



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Now it has finished this point and it seems that the error message has disappeared or in fact it's not



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an error or it's just an indication that we didn't have that.



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So here we are we are quite cool we have our plans here we can work with them and so on.



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Let's place it and zoom in and adding a video here is just like adding a solid layer and replacing the



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story.



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Let's face it let's make the target size a bit bigger and not just what's happening we need even bigger.



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And here you are so I need something extremely flat for the window.



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This seems quite OK.



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You can choose anything else you want.



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No problem.



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And right click and say create solid and Kamila at the same time.



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So really typically this is how you will work after you have not understood everything.



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Now the first thing I want to do is to go back to Xun and preview and see exactly.



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Is this solid is really working for this kind of tracking.



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It seems it's OK is moving very nicely with the window.



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OK I don't know if it's moving with the background or the flat window but of course it's moving with



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the background color so that's not bad at all.



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What we can do is immediately come to our saling movie here and press on it or choose our layer press



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alt and just drop it in.



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Here we are.



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We have our movie just over here so that's pretty small now we need to scale it and work on it.



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OK that's one way to what you could have done even better.



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I would scale it up press shift to scale it up OK it's not working so I need to adjust it.



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That's not bad like this code.



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So of course I need now to get corner when I put it in.



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And that's exactly how I can fit it if it fits nicely.



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Is done here and here it is OK I have some white Here I'll try to fix it.



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Now we're not doing an extremely proud job on stories like this.



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You don't have to be a bit you know it's OK.



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If I were doing a professional project this would not be allowed and not just how the light is coming



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but for the purpose of doing an exact size on camera tracking this will do fine so I put my leg up there



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and I have now one movie in another I remove the sound and then come to preview and preview exactly



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what is happening.



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Well actually it seems it's working fine not this.



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There is some white that is appearing good.



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And I really don't like the light here but it's ok.



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It's working for the purpose of an exact size.



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Now how did you benefit from this exercise.



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First you notice that sometimes you have to use the advanced option here and find out OK which one can



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I use to remove the messages if there are any.



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Also instead of using most D-flat seen you could have used also variable zoom at your free time please



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try or pan or typical and see the results that you will get.



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I hope this challenge was useful for you.



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I know it's simple.



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It's important that you start with simple things and the standardly how it's working how the corner



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pin can be useful to you and try to do as many as simple things possible before you go too complicated.



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And you know things that already you need to use maybe a busy warp or something like this.



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Paul thanks very much for listening.



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I'll see you in the next election.