Showing posts with label Giroptic. Show all posts
Showing posts with label Giroptic. Show all posts

Friday, 7 August 2015

Why now is a great time for VR and digital planetariums

We are at the beginning of a fantastic period for Virtual Reality, the latest of many waves going back as far as I can remember. With a whole field of VR headsets (Oculus Rift, Microsoft Hololens & Google Cardboard to name but 3) all vying to be the next big thing, focus is switching from the devices themselves to what they are going to be used for. After all without content they are nothing more than items that collect dust on a shelf.

Up to now a lot of developers have been focusing on virtual worlds to explore and play in, but now with advances in technology and falling costs the opportunity to shoot 360° video is now within the reach of more people. Everything from multi-camera solutions (360Heros & Google Jump), through single camera / multi lens devices (Giroptic 360Cam & SpheriCam) to single camera / single lens devices (Kodak SP360 & Eye Mirror 360ยบ). None of these devices are perfect, each having their own pro and cons, but all having the ability to shoot 360° video.

Now some of these devices, in my option, have reached a quality / cost / complexity tipping point. Before this if you wanted reasonable quality it came at a cost and required a certain amount of technological know how. But now there are devices that are  affordable, produce reasonable quality content and don't require an in-depth knowledge on the subject. This in turn is resulting in a whole swath of film makers getting access to the format for the first time.

This is where things are getting great for digital planetariums too. You see in most cases the 360° content that is being produced for VR headsets just needs a bit of tweaking to be able to be projected into a dome (something most content creators hadn't even considered as an option). Unfortunately not all content is suitable, especially where the viewer is required to look down! Most domes only covers a 360° x 90° view (the top half of a sphere) so you can look from straight up to the horizon in all directions, but with a bit of adjustment it is possible to extend what is projected to an amount below the horizon as well.

Over the past couple of years I have been experimenting with re-projecting 360° content from a wide list of genre's (artistic, music, action, scenic) with great success. It has provided a fantastic learning experience as to what works / doesn't work in a dome and how people experience the format. It has shown me that digital planetariums aren't just one trick ponies that only show journeys into space. They can just as easily show an immersive environments as VR headsets, placing the viewer in the middle of an all round view.

Some people may question if its worth bothering with digital planetariums as the number of people who have access to one is lower than VR headset ownership and the domes that are out there are already fully booked showing their own content. Well things have changed, there is now a whole new breed of portable digital planetariums that can sit up to 40 adults (or even more children) where ever there is enough space. You don't even have to own one yourself as there are companies that will bring a dome and show your content for you (here in the UK there is a company called Immersive Theatres).

Finally one of the biggest advantages of domes over VR headsets in my eyes is a social one. If what you are looking for is the ability to be immersed in a virtual environment by yourself then maybe a VR headset is for you, but the experience doesn't always have to be like this. The experience could be one that you share with others.

Saturday, 21 June 2014

Playing in a Dome

I love going out and creating spherical panoramas of the places I visit, its a fantastic way to capture some amazing sights. But after I've created them I'm left with the same ways to visualize them, either using some sort of interactive viewer or a flat static view which sort of removes the immersive 360° experience. Well luckily for me I've recently had the offer of a third way of viewing my work, in a 180° dome.

Last October (2013) I visited an Art event in Birmingham called Illuminate and as the name suggests it was all to do with light. The bit that I was interested in experiencing was the 360° Panoramic Cinema, not a full dome projection but a cylindrical slice all around the walls. It was here I met Toby Norman-Wright and Mario Di Maggio and got discussing my panoramas with them. I was told by Mario about another event he runs in Birmingham on a regular basis called Dome Club and I was invited to bring along some of my content to be shown.

Now we fast forward to today. After some initial experiments with preparing content for a dome, only showing an 180° view meant that you would only experience the world from the horizon up (or maybe slightly tilted forward). I started thinking about showing more, seeing a bit of the floor too. This presented it's own problem. The projection that the dome required was circular fisheye so expanding the view to 250° was not a problem. What was a problem is that the view would be distorted making buildings tower in above you and to correct this I would need to re-map my images. After a bit of scribbling ideas on paper, some Maths and a Python script to do the work my images were re-mapped and ready for projection.

I visited Dome Club being held at the Q Club Complex in Birmingham on Friday 13th June and there I was able to experience my work being projected in a 7 meter dome. I had given Mario both original and re-mapped 250° views so that comparisons could be made to judge if the re-mapping was a success and in my eyes it was. Vertical edges now appeared vertical (again) and the ceiling didn't seem so distant. It's truly a great way to re-live the immersive experience of the original panoramic image.

My static panoramas wasn't the only content that I took to Dome Club, I also took Giroptic's demo panoramic video from Times Square in New York shot on their amazing 360Cam. I converted the original 360° x 180° equirectangular projection to a re-mapped 250° fisheye. This was a bit of an experiment for me as I hadn't worked with panoramic video before and the 360Cam is still only a kickstarter project (over $1.1 million funded project at the time of writing!). The immersive experience was outstanding and from such a small handheld device. It really did show what will be possible for content creation that is then shared with a mass audience. Truly interesting times for spherical panoramic video and an area that I want to carry on experimenting with.

For anyone interested in seeing what a re-mapped 250° fisheye video looks like you can see the Time Square demo video over on my YouTube channel here http://youtu.be/VUZKKxP1DYA.