Blog VR/Mixed Reality

Mixed Reality Automatic Camera Tracker with SUTU

It’s been a little over a week since I launched my Automatic Camera Tracker project. It’s still a work in progress, but as SUTU is monopolising my Vive and nerd-basement at the moment, it felt like a good time to check in on its¬†progress.

The current version is working alongside other VR apps, and can track a controller or VR headset at realtime or timelapse speeds as the user moves around the VR and IRL space. A little like this:

I wrote some more technical details about the system in a Reddit post on /r/Vive, and the tweet announcing the video received quite a bit of attention…

… which is exciting, because it’s a project I’ve had in my mind since I first used the Vive over a year ago, at PAX Prime in Seattle. As soon as I waved the controller in front of my face and noticed the tracking speed and accuracy I started mentally designing camera tracking systems. I¬†wanted a VR system in my life because I love games, but I¬†needed a Vive for filmmaking science experiments.

I’ve spent today with¬†SUTU filming with my most recent¬†version of the system, using it for both timelapse and realtime, handheld shooting while he worked on a Tilt Brush version of a piece from Nawlz.



Tilt Brush Backyard – Mixed-Reality VR Painting in Nature with HTC Vive

I’ve been thinking for a while about taking the Vive outside to test how it handles Nature.¬†The object-tracing capabilities of Tilt Brush have already been pretty well established. SUTU and I had planned to take the VR rig outside last week, but it ended up raining, so I had to do it by myself after he left :|

To view the art in Tilt Brush yourself, and spend a little time in my virtual backyard download the .TILT file here.

The process was great fun! Outside Vive is a super strange feeling, but it worked well. Even climbing a ladder while blind was quite fun. (Note: Don’t take your Vive outside at daytime, tracking won’t work and sunlight through the lenses can burn the screens.)

I took a couple of precautions, most important was applying some tape to the controller so it didn’t get scratched up by the¬†brutal nature in my suburban backyard. I figured out last week that the most accurate way to “trace” objects in Tilt Brush is to use the back of the controller, as the “stylus point” is at the top of the handle, not the tip of the tracking ring.

I’m still experimenting with mixed-reality motion-control shots. This version I stabilised the Tilt Brush feed in After Effects as it had a constant slow oscillation which I think may be to¬†due to vibrations from my robot’s¬†stepper motors.