Vizard-PPT conversion

[vizstan]

Hi, nihohit,

Could you try to recalibrate your PPT system with the cal-rig again?
Also, I want to verify the size of your calibration rig. The corner LEDs should be close to 57cm apart (not in diagonal direction). You can verify it one more time after the re-calibration process by checking the coordinate system of the light showing in PPT Studio.

[nihohit]

I don't know if this is also related, but I just noticed that while I calibrated on the floor, and made sure (by the floor tiles) that the set will be perpendicular to the walls, models appear at some angle to what I would've expected.

[nihohit]

Checked with another stage, now - the eye-height problem didn't appear, so that must be something that is due to the stage.

[Gladsomebeast]

I think the code you are using is changing the PPT data before it is applied to the viewpoint. PPT always outputs in meters and is oriented in the positive z direction of the calibration square. Try running only this code only:

import viz
import vizact
viz.go()
viz.add('court.ive')

vrpn = viz.add('vrpn7.dle')
tracker = vrpn.addTracker('PPT0@hostname',0)

def updateView():
	pptPos = tracker.getPosition()
	viz.MainView.setPosition(pptPos)
	
vizact.onupdate(viz.PRIORITY_DEFAULT, updateView)

[nihohit]

That certainly seems to help - movement still needs a bit of scaling up, but a lot less then before.
BUT with this code the program doesn't receive the helmet's tilt controls. When I add:
track = viztracker.add()

then there's tilt controls, but now the room and movement directions in the simulation are again at some degree from the room originally - forward movement is slightly skewed (and so's sidestepping), and the corners of the court are around the center of the lab's walls.