Stereoscopic Cameras
iaian7 » tutorials » lightwave John Einselen, 19.03.10When shooting Avatar, James Cameron used converging cameras, resulting in footage that required perspective correction in post. Pixar took the opposite approach in Up – using (in their case, virtual) cameras mounted exactly parallel to each other, giving stereo imagery with no distortion, but more complicated convergence workflow.
2011 Update: a custom camera setup is no longer required, as Newtek included a native stereoscopic camera with full convergence and perspective control in Lightwave 10.
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Modern Genocide
iaian7 » blog John Einselen, 18.01.10I read a short news article a year or two ago so shocking and so horrifying, I wasn’t sure what to do; words continue to fail me, so my blog post will remain short as well.
Today is a national holiday, celebrating the birth of one of the United States’ most prominent and inspiring freedom and equality advocates – Martin Luther King Jr.
Today also marks the beginning of Sanctity of Human Life Week – a both complementary and ironic juxtaposition.
Today, African American infants are 3 times more likely to be killed than a caucasian infant, and a disproportionate number of Planned Parenthood clinics are located in targeted minority communities.
As countries around the world attempt to recover from, continue heinous crimes of, or secretly prepare for genocide, please remember what’s going on in the US. How can I sit idly by? How can you?
Guttmacher Institute: research on worldwide abortion trends
NRL Current Bills, Legislative Action Center, Elected Officials directory
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ProwlPost Automator Service
iaian7 » blog John Einselen, 17.01.10I like to think Prowler is a pretty easy to use widget, but a poster on the Prowl user forums requested info on how to integrate Prowl notifications in Automator. An excellent question; even if you don’t need custom scripting, why not make a simple OSX Service that posts to Prowl? It’s not like the UI is particularly necessary.
It took a bit of trying, and the result is pretty rough, but it works! You may notice I’ve used a “Get Link URLs from Webpages” node to make the HTTPS connection. This is because something simpler (like “Get Text from Website”) inexplicably connects twice, sending double push notifications to the iPhone. No idea why, but at least it’s running ok with a rather repurposed action.
To install, copy the file to your ~/library/Services/ directory, then double-click to edit in Automator. Update your UID (the Prowl API key) in the “Get Specified Text” node, save the service, and it should be ready to go. You can change the priority, application, and event name as well.
Make a text selection in any app that supports OSX automator services, then right-click to bring up the context menu. Select “ProwlPost” to send the selected text to the Prowl servers and push a notification to your iPhone.
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Removing SVN
iaian7 » blog John Einselen, 14.12.09It’s one of the greatest banes of my existence; SVN should never, ever be used for graphics. I can spend hours trying to get projects committed, and days waiting for them to upload… only to eventually fail, and I have to start over.
So yeah, I really hate SVN. It shouldn’t even be considered in the list of graphic and media file versioning systems to choose from; yet I’m forced to use it every week at work. A constant, painful reminder that I don’t work at a design house, but a development company. Often SVN screws up so badly I have to rebuild the entire directory structure to clean it up. However, the root issue is obviously SVN itself; simply removing the hidden control files can set things right side up again rather quickly (the hidden folders also contain a duplicate of every single visible file, turning a 52Gb motion graphics project into an unwieldy 104Gb). Once the offending SVN directories are removed, I can finally freely move folders of assets from one project (previously subjected to versioning) to a fresh new project, or a project versioned under a different directory, without sending SVN into day-long seizures. Very helpful!
Mezzocode.com has kindly posted an Automator workflow for removing SVN files, and I’ve taken the liberty of updating it for OSX Snow Leopard as a dedicated Finder service (Jason Eisen has also posted SVN and hidden file removal workflows, if you’re interested). Hope it helps someone else as much as it has helped me!
To install, copy the file to your ~/library/Services/ directory. Right-click on a folder in Finder, and “Remove SVN” should show up in the list of services. There may be a short pause as Finder opens the Automator workflow, but once started it’ll ask for confirmation before deleting any SVN files, then post a Growl notice on completion.
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Aurora
iaian7 » code » quartz John Einselen, 22.11.09
Attempt at creating the Aurora Borealis effect, in a Quartz Composer screen saver. Controls are included for the primary colour, colour variations, and positioning of the light pathways.
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Microsoft PowerPivot
iaian7 » blog John Einselen, 12.11.09Normally I wouldn’t give Microsoft the time of day, nor would I even know about plugins for Excel 2010. But I happen to work on a lot of Microsoft projects, and I just so happen to be the lead artist on a series of PowerPivot videos (yes, there is still more coming!).
I’ve actually been holding on to the news for several months now, waiting anxiously for approval to publish the results of a very, very tight deadline. At long last; not only has the first video been posted to YouTube and Vimeo (visit! rate! love!), but I wrote two articles covering workflow development and effects for the series. They’re both in the After Effects tutorials section above: Lipsyncing with Papagayo helps explain the character animation process (along with a custom OSX Widget I wrote for translating lipsync files into keyframes), and Dynamic Paper Cutouts details how the torn and crumpled characters were generated on the fly during compositing.
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Trailers
iaian7 » blog John Einselen, 2.11.09It’s been far too long since I posted movie trailers. In part, I’d like to say, because of the lacklustre performance of recent storytellers. I have no interest in a movie where Jessica Alba plays a woman unable to get a date for Valentine’s Day. Really, it’s not even funny, the woman can’t act. The latest Robert Zemekis abomination even stars Jim Carrey; barely palatable when he’s not a pointlessly-CG old man playing Scrooge. Nor do I, in a particularly twisted piece of irony, want any part in promoting a disaster film that appears to be one long VFX shot set in the year 2012. There may be people in there somewhere, but they’re hard to see, and I doubt anyone cares if they’re saying anything. Apparently watching a digital California crumble into the ocean is more important than a good story. On second thought, I’ll probably watch that. I hated LA.
(no offence to my friends that live in CA, of course, nor any future employers located there; who I am sure are awesome enough I can brave unbearable heat and deadened landscapes without so much as a whimper of despair!)
The other part of the blame, of course, rests with me. I missed a few cool trailers in the past few months, such as Daybreakers (Sam Neil is a vampire, and so is most of earth’s population), Zombieland (America’s own Shaun of the Dead cult classic), and The Men Who Stare at Goats (George Clooney, Jeff Bridges, Ewan McGregor, and Kevin Spacey all in one film!).
Anyway, there are a two trailers that caught my eye this week. First up is a new trailer for Prince of Persia. I normally wouldn’t give this much more than a cursory glance, but the Prince of Persia series (on the original Xbox) is one of the few xbox games I’ve ever owned. Sure, I love a good game of Halo with friends, but on my own? It’s pretty much the only console title to ever hold my attention. Back in 2004, it was, well, kinda beautiful! And now? It’s going to be a film. Don’t get me wrong, that’s usually a horrific proposition, but Prince of Persia should have some decent story arcs to play off of, and given some good writers, the right actors, and action packed cinematography, it could pull off a feat that no one has, to the best of my knowledge, pulled off before; a decent film based on a computer game. Unfortunately, I do have a lot of issues with the cast. Somehow they skipped a thousand actors better suited for the role, and hired Jake Gyllenhaal as the lead. Sir Ben Kingsley is even deplorably typecast as a bad guy. But it’s sometimes hard to tell how things will come together based only on the trailer; can’t say this will actually pull through, but I’m hoping it’s cool.
DreamWorks films are hardly a shining example of animation or even basic film making – compared to Pixar (the end-all/be-all of good storytelling … and they’re pretty good at 3D animation too), the films from DreamWorks Animation just don’t measure up. Maybe they’re not quite as family friendly, maybe the animation quality isn’t as good, maybe the story isn’t worthwhile, maybe they’re just dumber … usually it’s all of those issues and more. Of course, any diatribe of mine against Dreamworks must be prefaced with an acknowledgement that I really liked Shrek. Yes, it had many of the aforementioned issues, but I found myself identifying personally with the whole pretty/ugly dichotomy (probably why I loved Hellboy so much as well!). I enjoyed it enough that I even like the second film a little. And to be very honest, I did watch Kung Fu Panda. Not a great film, but the character rigging really stood out – as someone who’s done 3D for a wee bit of time, good character TDs are unsung heroes.
Well, enough of that, and now that my soap box is handily stowed away in an easily retrievable location, I can finally get to the trailer for How To Train Your Dragon. A DreamWorks film I may not hate! It’s written and directed by some of the same people that did Lilo and Stitch, not a favourite movie of mine, but strangely charming. I’m hoping we get something similar from this film – a little odd, just enough quirkiness to be endearing. I’m actually looking forward to how this turns out! Be it the dragon design (more unique than most, I would say, even cat-like), the overly dry comedic delivery (heck, Craig Ferguson is involved, clearly recognisable in the trailer!), or the wetter, grayer palettes employed by the look department. Of course, it’s also being made for stereoscopic projection. That’s a whole other diatribe, and there’s just not the time. At least, not right now. Maybe the next blog post.
For now, let me know your thoughts in the comments!
P.o.Persia looks like quite a treat for the eyes, story notwithstanding. I in particular fancy the 80’s reflective chrome Syd Mead revival-esque titles myself. =]
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Apple's Colour Picker
iaian7 » blog John Einselen, 19.10.09I have had a seemingly long and sordid history with digital colour calibration. Back in college it was all about matching print output. Then it was web-safe (as in not web-safe). Then video chromaticity, gamma values, and black level IRE. Now I’m just constantly screwed by Apple and the OSX colour picker – it’s perfectly simple, has an easy to use colour swatch system, and … never keeps the right colour values. Ever.
In Lightwave, if I select a colour with a hue of 30 degrees, saturation and value set at 50%, next time I open it in the OSX colour picker? It’s a degree off, and perhaps 7% darker. Inexplicable. Same thing happens in Apple’s own developer tools, albeit without opening the colour picker at all – just by editing an element’s width or height in Dashcode, for example, can cause the object colours to: darken, skew, desaturate, and, if you have an alpha value selected, slowly fade into oblivion. It’s maddening I tell you!
What’s worse, Snow Leopard apparently is expanding colour management issues to inconsistently do the same thing to random UI elements. Such as the dock icons, which are now a pale imitation of their former glory, while still showing up in full vibrancy when viewed in a finder window. Utterly inexcusable.
It’s truly a bad position for Apple, as they have typically catered to those with keen eyes for colour – with colour management and ICC profiling built into the very OS, you’d think this the type of thing that wouldn’t happen. I’ve always loved the monitor calibration utility, but I have serious doubts as to how it’s affecting colour values across the board.
Yet, (and perhaps this is the mark of a sold-out fanboy) even with all these issues – the OSX colour picker is pretty dang helpful, if only because it is ubiquitous. I don’t trust it like I used to, but there are some plugins and tools that can make it, perhaps, useful again.
From Panic software, there’s the Developer Color Picker for easy copying of values for any number of Apple development tools (including full declarations for HTML or CSS code). There’s also the HEXcolorpicker for simpler HTML and CSS styling. You can even get Kuler integration with Mondrianum, which lets you load and browse colour schemes created with the online Adobe tool.
Mac OS X Hints posted an article recently detailing the simple steps needed to make the system colour picker into a standalone application. Especially useful when picking colours, as you’re able to use the magnifier icon to select any pixel value from, well, anywhere on your screen!
There are plenty of other plugins are out there, let me know if there’s something I should add to the list above.
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Alphanumeric sorting
iaian7 » blog John Einselen, 8.10.09I came across a dark realisation last month – Javascript sorts lexicographically, not alphanumerically. After days of failed attempts and scouring the web for snippets, I finally came up with my own solution.
The first few lines are designed to prep results from an OS X file array (quite useful for developing Dashboard widgets in Dashcode!), but can be easily modified for other situations. The most important part to note is the .split(/(\d+)/) regular expression. This both splits and returns the string at every numeric section, giving us an array of alpha and numeric chunks. Each chunk is then compared; if one is greater or less than the other, the function returns the sorted value. If not, it keeps on checking to the end of (in this case) the file name. Not only does it allow for very specific alphanumeric sorting, but easily customizable results as well. For example, OSX places file names with a longer alphabetical string at the end before those with the same, but shorter, titles. This script accurately mimics the same behaviour.
function sortAlphaNum(a, b) { var x = a.split("/"); var y = b.split("/"); x = x[x.length-1].replace(/\\\s/g," ").split(/(\d+)/); // the split formatting is imperative, everything else can change y = y[y.length-1].replace(/\\\s/g," ").split(/(\d+)/); // the split formatting is imperative, everything else can change for (var i in x) { if (x[i] && !y[i] || isFinite(x[i]) && !isFinite(y[i])) { return -1; } else if (!x[i] && y[i] || !isFinite(y[i]) && isFinite(y[i])) { return 1; } else if (!isFinite(x[i]) && !isFinite(y[i])) { x[i] = x[i].toLowerCase(); y[i] = y[i].toLowerCase(); if (x[i] < y[i]) return -1; if (x[i] > y[i]) return 1; } else { x[i] = parseFloat(x[i]); y[i] = parseFloat(y[i]); if (x[i] < y[i]) return -1; if (x[i] > y[i]) return 1; } } return 0; }
Lastly, we ask Javascript to sort an array using the above function, like so:
array = array.sort(sortAlphaNum);
Let me know if you use this in any projects, I’d love to know! 
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mediaboxAdvanced
iaian7 » code » webcode John Einselen, 28.09.09Based on Lightbox, Slimbox, and the Mootools javascript library, mediaboxAdvanced is a modal overlay that can handle images, videos, animations, social video sites, twitter media links, inline elements, and external pages with ease.
This script is no longer being developed, but remains online for reference.
mediaboxAdvanced
Thanks for posting about this! I was praying with them on the march at bound4life.com . Also, I’m about to use your mediaboxAdvanced plugin… Thanks for both!