Some freetrack questions

[SEE]

Originally Posted by swiss

The way I understood it is: Position of point R(Reference LED) to center of head.
Where can you adjust the distance point R to cam?

There is no documentation regards the Transition Sliders ( the ones beneath the Model Point Construction Dimensions) but they can be used to set the optimum position of the LED clip with respect to the camera.

Rather than describe how it works simply do the following:-

1. Power up your LED clip, sit in your preferred position and with the Webcam facing your clip.

2. Start FT, do not press the Centre Hot Key and view the default location of the Skull. You will notice that there are two crosses, One RED the other BLUE, one attached to a fixed point in space and another affixed to the mid point of the skull.

3 Now adjust the Transition sliders in the X, Y and Z axis - the skull will move (in relation to the camera) and you can allign for a perfect default centre to the fixed X Y and Z reference lines.

Why is this included? One reason I suspect is that its bloody hard to actually get your clip in perfect centre to the field of view of the camera as you have to move your head to move the camera.....chasing ones tail never to catch it.....

Secondly, a thousand people could make a 'clip' and not one would be the same.....thats custom building at its best....


I calibrate the exact centre using the Transition Sliders (with a slight bias in the Z axis as I work close to the screen) and have perfect response in all axiz and find that I rarely have to keep re-centring my view ....try it is the best I can advise.