Archive for the ‘Compositing’ Category

Tips – Offset tracking in After Effects

Wednesday, July 22nd, 2009

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10mins 49sec 29meg Quicktime H.264 MOV


Alrighty, back with another one of those block rockin’ beats to quote those Englishmen, the Chemical Brothers.

Last time we looked at offset tracking in Shake, a relatively straightforward and easy affair . . . not so in After Effects as it turns out. Hopefully this will help you out. Thanks to my co-worker Dan Bryant for showing me this method which I then finally found somewhere else on the net with Carl Larsen’s video over at Creative Cow. If you are an After Effects user and aren’t checking Creative cow, then shame on you!

Tips: Offset tracking in Shake

Sunday, June 7th, 2009

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5mins 55sec 36meg Quicktime H.264 MOV

 

Offset tracking?  What about tracking in general, Matt?  Hold your horses and steady on!  I freely admit that this is an old tutorial I did for the University course I taught, so apologies to my previous students . . . please don’t let this make you feel any less special.  You are all unique snowflakes!

 

Actually the real reason is that upon reflection my original tracking video might raise the ire of Teh Appel Corporation as I used the standard footage provided in the shake tutorial book . . . soooooo, rather than risk a multi-billionaire dollar lawsuit and put Steve Jobs already strained health under more stress, I will look at doing a re-edit with some techniques I learned on ‘Australia’.  

 

Now, these concepts can be applied to pretty much any compositing software.  As far as I know they all have the ability to offset or append a search region.  Why do we do this?  The main reason is because your main tracking points become obscured or head offscreen.  The thing is, as an aspiring compositor or 3D person, you might not know that this is possible, so you will be fighting your footage trying to get “the perfect track” on a point when it either just can’t be done or you can get a better track quicker and with less time wastage by choosing better tracking data at some point in your clip.

 

So, without further delay, check it, like, totally out.  As always, comments, questions and additions are welcome.  Only unnecessarily over the top profanity is frowned upon.

 

Offset tracking.  Sexxy, no? No.

Offset tracking. Sexxy, no? No.

 

 

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Thoughts: A new job and new experiences await!

Wednesday, May 27th, 2009

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Life is funny.  Things are going one way and then ZING!  Off you go in another direction.  That onomatopoeia was meant to represent me changing direction slightly.  

 

On Sunday my car had major problems leading me to crash at my sisters house for a few days (hence the lack of an update) and it looked bad . . . very bad.  As soon as you have engine problems on a car with 235,000 km’s you start to think in mid 4 figure amounts.  I had had an interview the previous Friday and I was stressing a little about a possible move with a massive car expense and not much sleep was coming my way.

 

 

I iz a happy cat!

I iz a happy cat!

As it turns out, it was a relatively minor problem with the car (considering what I thought could go wrong), I was offered the job at a decent wage doing cool stuff in a great new city and I will be teaming up with one of my very good friends from Animalia again!

 

Soooo to cut a medium length story slightly longer: I will be starting with compositing and VFX on children’s animated television show with Ettamogah Entertainment down in Melbourne in mid-June.  I am really looking forward to it as I will get a chance to get my hands on some new-ish (for me) software for some production experience.  While I have used Maya and After Effects for personal projects, I am chuffed to get down and dirty with them with the possibility of some suh-weet houdini action as well.  All this is good for you, dear readers, as there will be a broader range of tips coming your way!

 

And, in a great twist, I will be working with my good mate Rodrigo Guimaraes again!  Rodrigo and I started on the same day together back on Animalia and we (and the other compers) had a blast hanging out together on the project, so it is with a glad heart that I will see my Brazilian mate again.

 

Throw into the mix a move to Melbourne, a very funky city and things are looking very exciting indeed.

Tips: Using RGB mattes in CG compositing pt2 – the video!

Sunday, May 17th, 2009

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16mins 38secs, 54meg Quicktime mp4 mov

 

I finally got my desktop fired up and grabbed this video I made last year for class.  I have a 50meg version of this I will try and get up soon if 80meg is too big.  I have used Simon Reeves’ excellent breakdown on his website www.bankaffairs.com.  Check it out for some very clear examples of using RBG passes for compositing in CSI Please note that all images are copyright Simon Reeves and are to be used for education purposes only.  Check out Simon’s main site at www.simonreeves.com.

 

Note: for clarity (and my own workflow), I have reordered the channels of the RBG passes before feeding them into nodes.  You don’t have to do this in Shake.  In the node being masked you can choose which channel you want to use as the mask.

 

Images (c) Simon Reeves

Images (c) Simon Reeves