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Ryan

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Posted on Monday, November 26, 2001 - 8:00 pm:   Edit PostDelete PostView Post/Check IPPrint Post

I was thinking about gutting a Gravis Destroyer Tilt or Microsoft Freestle Pro and using the basic tilt functions to make a homebrew headtracker. There only seems to be one problem with this theory. (Forgive me if I call each axis by the wrong name). The controllers only support the x and y axis for tilting left to right and leaning forward and back. That would only account for pitch and roll, correct? This feels at least close to a cheap homebrew solution, so if anyone has any thoughts, let me know.
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Anonymous

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Posted on Wednesday, November 28, 2001 - 12:16 am:   Edit PostDelete PostView Post/Check IPPrint Post

My personal beleive is that Yaw and Pitch are the most important considerations when looking at a headtracker. Roll is just an added plus. But when it comes to Homebrew I guess it doesnt apply. You can get a digital compass from Dimore and implement yaw fairly easily for you tracker. If I was going to try to do a homebrew tracker I would try to use a mouse frontend instead of a joystick.
-Food for thought
Kevin
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Ryan

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Posted on Wednesday, November 28, 2001 - 7:37 pm:   Edit PostDelete PostView Post/Check IPPrint Post

I agree. Looking "around" can't be all that satisfying when one can't turn his head. Thanks for the compass tip!
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Paul Leonard

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Posted on Sunday, December 02, 2001 - 12:04 am:   Edit PostDelete PostView Post/Check IPPrint Post

You want an interesting alternative? I have been playing around with the TrackIR which senses a dot placed on your forehead.... er, it's actually better if you go to the website at http://www.naturalpoint.com for details. It's intended use is to allow people with disabilities to simulate the use of a mouse.

This piece of hardware is excellent for flight sims where you may be looking somewhere other than say where you are shooting.

Basically the hardware senses the movement of a special dot which you affix to your forehead (or 3D glasses). By turning your head only slightly you can effect larger apparent head turning movement on screen. In concert with 3d glasses the impact for games such as flight simulators is extraordinary.

Even better its reasonably priced!
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Anonymous

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Posted on Sunday, December 02, 2001 - 1:25 am:   Edit PostDelete PostView Post/Check IPPrint Post

very interesting!!!
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Bricklayer

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Posted on Sunday, December 02, 2001 - 2:38 pm:   Edit PostDelete PostView Post/Check IPPrint Post

I'm working on a home-brew HMD/head-tracker system for flight simming. I've settled on building a mechanical boom system. A virtual cockpit by it's nature constrains the user to a chair anyway. I have a 3 DOF version working using a joystick controller and pots. I intend to refine the design to achieve a 6 DOF tracker and replace the 8 bit joystick controller with a 12 bit A/D controller for greater resolution.

I intend to post the design drawings, bill of materials, C++ code, and build instructions on my web page. Right now I'm struggling with the optics for the HMD.

Bricklayer

Web Page: http://homepages.about.com/johncraigrochester/vrvision/

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