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Hi everyone, this is rprentki

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with another tutorial video for EyeWire

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This is going to be one for a

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starburst amacrine cell

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They are a little bit more difficult

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They are characterized by

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long thin branches

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that will usually go across the cube

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and the occasional blob

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they are difficult because the branches

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are so thin, that sometimes it is very

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difficult to see in the 2D

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Let's get started

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and again they almost always go across the cube

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You'll notice that our starter piece ends midway through

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and that it has a flat edge right here

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so if it's got a flat or jagged edge

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that usually means that there is something missing

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if it had a rounded edge, that could mean that it's finished

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alright, let's get started

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and a quick thing to note, you'll see right here

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that there's a little bit of

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blue outside the line

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if I hit shift, you can see that

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so this is just a mistake that the AI,

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the artificial intelligence, made

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and this happens once in a while

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It's good, but it's not perfect

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the important thing to do is you want to make sure

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that you don't continue the computer's mistake

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and what I mean by that is

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that this one right here, this big one

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is what's actually correct

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this little bit is incorrect

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so i don't want to add anything else to the

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incorrect part, so I'm just going to ignore

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it and pretend it's not there

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Okay, so it's disappeared now

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so we can just move on

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alright, so this is what I mean when I said that

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it can be extremely hard to see.

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sometimes the outline is even

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really fuzzy, or almost gone

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and so what you have to do is try to

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figure out what the shape was

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So I can see right here that the

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shape curved slightly, up here

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So we're going to try following that

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and when you pick up something that's this large

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and you can see that in the 3D that this is a very large piece

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you always want to make sure that it looks right

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in the 3D, so I'm going to zoom in a little bit

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and then take a look, alright

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So, it looks to me

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like it flows very well

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so it's a smooth continuation

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and this is the blob that I was

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talking about earlier, so a there's a

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long branch, then a blob

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Sometimes these will have several little nubs

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coming out of them, almost always there will be one

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long branch continuing out of it as well

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and that will hit the other side of the cube

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so let's continue on

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Alright, so I'm focusing on the blob here

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right now, because I can see in the

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3D that there's some jagged

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little bits, and you can see

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the little missing pieces

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so I want to get those before I continue all the way across

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Alright, looks like that disappears

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Now let's go back and follow the one

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long branch all the way across

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alright, so it looks like it goes here

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alright and it looks like that hit the edge and disappeared

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so now we're done