I'm just getting started with the Oculus Quest 2 from Facebook Meta. It is amazing. OK, that's a lie. It's a pretty good tech demo of what one vision of the future could look like. But it is making a little bit of my brain itch. What Government services could / should be run in the Metaverse? Obviously, the answer is "none". Sure, you could create a virtual job centre, housing office, or DMV - but would you want to sit in a virtual waiting room for a couple of hours waiting for your name to …
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Twitter can be amazing sometimes... I was reading about "L'Inconnue de la Seine". The face of a young woman found drowned in the river Seine in the 1800s. Her death mask was enormously popular - with copies of it appearing all over the world. Her smile was compared to the Mona Lisa and her face decorated the popular salons of the day. Her death mask was even the basis for the first "CPR Doll". Her death has helped save more lives than anyone can possibly count. There are thousands of…
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Here's an interesting conundrum. My TV can automatically detect when 3D video is being played and offers to switch into 3D mode - but how does the detection work? This post will give you a few strategies for detecting 3D images using Python. Firstly, some terminology. 3D videos are usually saved either as Side-By-Side images, or Over-Under images. Colloquially known as H-SBS and H-OU. Here's an example. SBS OU Metadata? My first thought was that 3D video may contain metadata which…
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A quick tutorial in how to recover 3D information from your favourite 3D movies. In this example, we'll be using Star Wars - The Last Jedi. tl;dr? Here's the end result (this video is silent): https://shkspr.mobi/blog/wp-content/uploads/2018/04/walker-text.mp4 Grab the code on GitHub. Let's go! Take a screenshot of your favourite scene. Something with a clearly defined foreground and background. The brighter the image the better the results. Split the image in two: mogrify -crop…
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I've been sent a 3D camera addon to review - the Svpro SV-2560X3D-001 is a £65 stereo camera designed for Android. It will also work with a Raspberry Pi! It looks a little like a Microsoft Kinect - a single bar with two embedded cameras. The camera resolution is 720p on each lens. You can buy the camera from Amazon UK. It clips on easily to a phone via a padded screw clamp. You need to install a dedicate 3D camera app in order to make it work. In the box you get the camera, two USB-OTG …
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This blog post looks at the 3D conversion process for The Force Awakens. Where it succeeds and where it falls short. Last year I managed to blag tickets to the premiere of The Force Awakens - in 2D. The next day, we saw it again in 3D. I've never been a huge fan of 3D films and, despite owning a 3D TV, think the format is a bit of a gimmick. But the 3D Star Wars was something else! Most of the scenes really didn't benefit - but some of the special effects just popped out of the…
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Loading large 3D Models in the browser is extremely resource intensive. 2D images are trivial to resize and resample with negligible loss of perceived quality. 3D resizing is complex. As part of my "Pirate Museum" I wanted to display 3D scans of statues using WebVR. The only problem is, these files are huge. Take The Dancing Faun - at full resolution, that's around 230MB. Even on fast broadband that's a pain to download - and even on a fast computer it is slow to render. Once you add…
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You know how the Democratic People's Republic of Korea is neither democratic, nor particularly for the people, nor a republic? Yeah, so it turns out the "Universal 3D" format is pretty far from Universal! A little backstory... The Europeana Carare Project has some gorgeous 3D scans of ancient monuments and heritage sites. The only problem is that the 3D files are trapped inside PDFs. Yup - did you know the PDF spec supported 3D models? Me neither. The only way to view these is with the…
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A few days ago, I posted this animated gif that I'd created from the 3D Doctor Who Special. I created that gif manually, but I wondered if it was possible to create such an animation in an automated fashion. Turns out, it's pretty easy! This relies on ImageMagick - which is a powerful image manipulation tool. All of these scripts work on Ubuntu - and they should work on any GNU/Linux disto as well as Windows and Mac. Get Your Image I just pressed "Print Screen" while watching a…
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I loved the latest episode of Doctor Who. What made it even better was the fantastic use of 3D. It had just enough "wow" moments to make the use of technology worthwhile - without totally overdoing it. I watched the episode live at home on my Panasonic TX-L37ET5B. After the broadcast, I wanted to watch it again. That's where the problems started. First, a quick lesson on how 3D TV broadcasts work. Generally speaking, most 3D TV is Half-Side-By-Side. That means the left and right image…
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I was wandering round The Henry Moore Foundation last Friday - thanks to the delightful wedding of my good friends Mike and Nikki. Looking at the abstract statues and carvings, I was struck not only by their beauty, but by how easy they would be to reproduce with a 3D printer. Ok - ok! I'm a little obsessed since building a RepRapPro for work - but hear me out. Wikipedia has been collecting high-resolution scans of famous works of art - although not without controversy - and providing them…
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Earlier this week I tried my hand at printing fossils. The print didn't perfectly, but it was quite encouraging. Museum Victoria - an Australian institution - has released a 3D scanned trilobite on Thingiverse. I trimmed the model - to make the bed shallower and the sides neater - and hit print. I'm pretty impressed with the results: My remixed model is also available on Thingiverse if you'd like to have a go at printing your very own fossil. I'm impressed with the fidelity of the …
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