You can still rotate the studio manually, calibrate your headphones, and select the studio monitors, and adjust the ambience using IR's. Or with no head tracking at all, which means that your stereo signal will follow your headphones as usual, instead of recreating the space around you as you move. You can use your webcam for head tracking. However, they require significant illumination to function, so you’ll need to shine a bright array of eight or more IR LEDs on them, preferably from a source near your webcam.Just get the NX Ocean Way Nashville. Reflectors are popular, because they don’t require a battery pack. The downside is that they have to be powered, meaning you’ll have a battery pack attached to your body somewhere. The advantage to LEDs is that because they emit a ton of infrared light, your webcam will have no trouble isolating the three points. Your two choices here are infrared LEDs (image D) and reflectors. Now that you’ve decided on a configuration for your point model, you need to pick a light source. We chose to go with the clip model because we usually wear a headset while gaming. Whichever one you want to go with is really up to you. By upgrading from a single point to a three-point model, FreeTrack gains the ability to determine your head’s position and rotation about the Z axis-in addition to being able to tell when you’re looking right or left, and up or down, it can also tell when you move and cock your head.įor a three-point model, you can either use a “clip” model, in which the three points are arranged in a lopsided V shape, and attached vertically to a headset (image A), or a hat model, where one point is placed on top of a baseball cap or visor, and two are placed along the rim.
However, if we’re going to all the trouble of strapping some lights to our head, we might as well get a full three degrees of precision out of it.
When you look up, the point of light moves up, when you look right it moves right, and so forth. This is enough to allow the computer to calculate your head’s location along two axes. The simplest is a single point of light-an LED or a reflector attached to your head. There are a lot of ways to make a point model. The point model is the gear that will, one way or another, let your computer see (via the webcam) which direction your head is pointed. Once your camera is ready to go, it’s time to get started on the point model. The link for the FreeTrack Forum above has info about how to modify a webcam, and if you decide to go with the PlayStation 3 Eye, you can check out our very own illustrated guide to turning it into an IR camera here. What’s that, you say? You don’t already have a modified webcam? Well, don’t worry, there are plenty of resources that will help you modify your camera.
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