I went there and mine was not checked so I checked it and left it at 132 which must be default.What does this filtering actually do?I did not notice any appreciable difference in the way TrackIR performed or looked.Thanks,Ron
Light Filtering
Use this Checkbox to enable or disable the slider bar which controls the Light Filtering.
This slider bar is used to control the light filtering of the TrackIR camera. A higher setting will result in more light being filtered. If used in areas where there are strong lights shining, the slider may need to be set to a higher value to filter out the reflections caused by these lights. When used inside, a value of 130 should produce good results (or just un-check the Light Filtering checkbox). Increasing this setting above 200 may reduce the precision of your TrackIR device.