i have my sensor bar below the screen and I can play from either side of the sensor bar. My ceiling is only 9ft so if I stood up in the middle, I wouldn't be able to see the screen as I would block it. I could always stand behind the couch if I need to be in the middle
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Yeah, that's my primary concern - how to play with 3 other people with noone blocking the path of light, because the projector is not ceiling-mounted + the only thing that can get behind the projector is the wall
yeah I'm ceiling mounted so I can still sit on the couch and play if it's not a game that requires me to be standing
stay out of the light, anyway. ur wiimotes work in bluetooth (RF) and not causing shadows 4u.
for games compatible with WiiFit board, u hv to stand/sit on the board, no couch.
The size of the screen does not matter at all.
The remote works by calculating the ratio of the distance between the two points on the sensor bar.
If you're playing only 3 metres away, I would suggest making your own sensor bar with some Christmas tree lights and some batteries so you can change the distance between the LEDs.
The only problem you could have is that if you're playing games like Call of Duty, your arms will get tired waving the remote around
I use the wii with a projector as well, I have a mitsubishi HC7000 mounted from the ceiling, a 108" 16x9 screen, and I have the sensor bar attached to the bottom of the screen. My room is much larger than what you describe but I tried using the wiimote within 3 meters and had no problems. To be honest in some functions it worked even better when I was within 3 meters. I did have to dial down the sensitivity of the wiimote a touch, but no problems up to about 1 1/2 meters (other than the fact that at that distance I blocked some of the projection.
the "viewing angle" of the sensor bar is very wide, as its only infrared thats needs to be picked up. providing there is nothing blocking the distance between the wiimote and projected screen, it will be fine. similar tech is used in my lecture theatres and they are massive