Head tracking - do all options (Track IR, Delanclip Fusion Pro) suffer when detecting day light?

[Flogger23m]

About half a year ago I purchased a Grass Monkey IR, the 60 Hz Jospeh II. It works well, except when there is ambient sunlight bouncing off a wall. During the winter months it works well when there is less ambient light, and I mainly use it in the evening after it is dark. But even minor sunlight can be an issue completely throwing off the tracking, even after tweaking some of the settings in Grass Monkey OpenTrack.

I am wondering if similar solutions like the Delanclip Fusion Pro or Track IR offer better performance with ambient light, or are they all more or less the same?

[SharpeXB]

You can get the TrackClip Pro which has LED lights and so isn’t affected by light sources

https://www.trackir.com/accessories/

[MAXsenna]

About half a year ago I purchased a Grass Monkey IR, the 60 Hz Jospeh II. It works well, except when there is ambient sunlight bouncing off a wall. During the winter months it works well when there is less ambient light, and I mainly use it in the evening after it is dark. But even minor sunlight can be an issue completely throwing off the tracking, even after tweaking some of the settings in Grass Monkey OpenTrack.
I am wondering if similar solutions like the Delanclip Fusion Pro or Track IR offer better performance with ambient light, or are they all more or less the same?

Not sure about the real TrackIR, but all solution that use cameras and interpret a spot of light as a source will have that issue. The Delanclip use OpenTrack, and with Opentrack you just can see what the camera is tracking and show you the light source so to speak and because of this one can easily remedy it, by blocking the interfering light sources.

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[SharpeXB]

Oh yeah good point. The software will reveal the light sources and your reflectors if you switch the setting to show those. They’ll appear as red blobs with NaturalPoint. 

[rob10]

Ya, active LED version is probably less affected, but there is about a week a year for about an hour a day where I get some sort of weird reflection (sun is on other side of the house and nothing obviously reflecting but angles apparently line up right) that causes me issues.  Otherwise with reasonable blocking of direct sun it's not a problem.

[Flogger23m]

On 2/5/2025 at 4:23 PM, SharpeXB said:

You can get the TrackClip Pro which has LED lights and so isn’t affected by light sources

https://www.trackir.com/accessories/

Thanks, I will look into that. Light bounce on the walls and a wood door is enough to throw it off, and sometimes light from a window in the very far left. Should these LED lights be sufficient to prevent that?

Blocking all light can be a bit difficult in this room. Summertime reflections seem to throw it off more, maybe the intensity of the light is higher.

[MAXsenna]

Thanks, I will look into that. Light bounce on the walls and a wood door is enough to throw it off, and sometimes light from a window in the very far left. Should these LED lights be sufficient to prevent that?
Blocking all light can be a bit difficult in this room. Summertime reflections seem to throw it off more, maybe the intensity of the light is higher.

No. Reading your OP, you are already using IR leds. And it's the camera that is the problem. If it's true what Sharp says, and I have no reason to believe it's incorrect, you need real TrackIR or a camera that only sees IR light. You can try to add a filter in front of the camera lens. Like a welders mask's glass or those glasses used for looking at eclipses etc. Some hacks I've seen, YouTube videos of adding negative film.
I personally turn off lights and mask windows, with my Delanclip modified PS3 camera. And like I wrote. In OpenTrack, just tune the camera when you have issues, and you see those issues.
PeachMonkey, Delanclip, Trackhat etc. Are all the same. You could actually DIY and make a completely identical gadget for a fraction of the price.

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