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EDcase #1 09/05/2009 - 00h51

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Hiall,

I just found something interesting and thought I'd tell you to see if it gives the same improved responsiveness.

I'm using a cheapie Philips SPC300NC/00 webcam and I had it set on default 30fps.

Playing ArmA which is very CPU intesive I was getting quite slow response to head movement.

After lots of fiddling I tried setting the camera and FreeTrack fps LOWER.
Camera set to 5fps   FreeTrack framerate set to 5 fps 1 multiplier
Hey presto its much more responsive!!!  It will be more jittery but just increase smoothing.

See if it works for you...
Edited by EDcase on 13/05/2009 at 11h18.
DrSnow #2 11/05/2009 - 18h21

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Hi Ed,

What kind of rig you have? Reading your post it seems something is not right.
I get a feel that your camera loses or gets too weak signal from cap or there is too much inteference by outcoming light.

I have old P4 2.8 with 1 gb memory and 9600 xt graphics card. With FT i use 3 point cap and MS VX1000 camera. And i run Arma with it.
With this rig i easily get from FT steady 27-30 fps and practically no jitter (0-6).

Have you forced your camera to outdoor settings? And have you sanded down the leds? Don't leave plastic more than 1 or 2 mm above the cathode.
What colour the leds are?

Hope u get some improvement out of these...

Cheers,

Snow

Oh, and just remembered, A thing worth checking is that you have enough bandwidth in cameras USB line. (and that it supports USB 2.0)

(edited typos)
Edited by DrSnow on 11/05/2009 at 18h28.
EDcase #3 12/05/2009 - 09h08

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Thanks DrSnow,

I guess I was not clear in my post.

Its not a limitation of my rig.  Freetrack shows the camera operating at about 38fps raw.

But when the camera is operating at 30fps in ArmA the head movement lags behind when I turn my head.

My low fps settings make the head response MUCH better.   After all you don't move your head 30 times a second so its not necessary to have the sampling so high.

Thanks for the reply anyway.

Ed
Edited by EDcase on 12/05/2009 at 09h09.
René #4 12/05/2009 - 12h18

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Actually I noticed the same thing when I turned the Multiplier off.

Camera runs at 30 fps, with Multiplier 1.

Eliminates almost all lag.
DrSnow #5 12/05/2009 - 19h00

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Ok,  a clear misundestanding from me.  :D   :gene:
Edited by DrSnow on 12/05/2009 at 19h01.
EDcase #6 13/05/2009 - 11h17

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René @ 12/05/2009 - 14h18 a dit:

Actually I noticed the same thing when I turned the Multiplier off.

Camera runs at 30 fps, with Multiplier 1.

Eliminates almost all lag.



Yes, I think the multiplier at 4 (auto) makes the movement smoother but very laggy/slow.
Edited by EDcase on 18/05/2009 at 13h50.

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