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Hello everyone, this is rprentki with another tutorial video for EyeWire.

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This is the one for the third practice cube after the tutorial.

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So, remember, you're not going to get feedback while you're working.

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You will get feedback at the end, and you will get points for this.

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Let's get started.

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Oops, wrong direction, let's go this way.

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Alright, and this little one is branching off from the large one.

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We're going to follow this one first because it's smaller.

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And I have a hunch it might end sooner.

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Alright, let's fill that in.

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Alright, so here it's a little bit tricky.

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We're going to hit the shift key to get rid of the color.

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Now it looks to me like this might extend a little bit right here, or it might end, I'm not sure . . .

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So let's try clicking right here, see how there's not a line?

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Okay, and let's see if it goes further.

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Alright, and I'm not sure.

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I'm trying to follow the shape right here, but it's a little muddy,

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because the outlines aren't very clear.

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So let's try clicking that.

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Alright, that picked up the entire thing right here so I don't think that is right.

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Let's take a look in the 3D.

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When you're not sure that something you've traced is correct, always check the 3D,

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because often its really easy to discern what's wrong.

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See how the dark blue piece that we started with looks like it's hitting the light blue piece, 

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and that the light blue is going in the other direction?

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That means it's not correct, the light blue actually belongs to something else.

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So we're going to get rid of it,

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and you can either right-click in the 2D or you control-click in the 3D.

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Erasing stuff in the 3D is really useful, 

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because sometimes it's hard to relate objects from the 3D to the 2D.

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It looks like that one probably just ends there.

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So, we're going to scroll back, 

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and now we're going to follow the bigger one out this way.

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Let me just turn the 3D a little bit so we can see what we're doing.

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We can see in the 3D that this branch that's starting right here 

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has a rough spot up at the top, it's flat, and then there's a jagged bit.

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That indicates that there is something missing right there.

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Once in a while, there will be these little nubs that do end, 

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but they will have a rounded tip, but this one doesn't, so we know it keeps going.

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Alright, let's see where this goes.

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Oh look, we've just added a big branch.

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I wonder if it goes to the other side of the cube, let's see.

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Alright, continuing on . . .

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Alright, so right here, we're going to have to scroll back and forth a couple of times 

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to see what belongs, and it looks like it's this piece right here.

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Let's zoom out a little bit in the 3D.

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Looking good still, let's carry on.

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Okay, we just have this one to follow now.

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Alright, looks like that one has hit the edge, both of them, looking good.

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And so, what I like to do after I finish a piece, 

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is turn it around and make sure it doesn't look like I've missed anything.

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And what I see right here is, the more I look at it, 

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the more this little piece looks like it doesn't belong.

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See how the lower light blue piece and the dark blue have a nice rounded shape 

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and the upper light blue piece is a little jagged and weird?

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I don't think the upper light blue piece belongs, now that I'm looking at it again,

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so let's deselect that.

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Let's hit "Check my work".

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Great, it looks like we've got a pretty good score.

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Ah, there's something small that's missing up here, oh well. Let's continue on.