Projector question?

[darrsum1]

Is a projectors projection affected by other light sources passing through it or is it just how much light hits off the screen its projecting onto?

Probably a stupid question but any knowledge on this would be great.

[fluchtpunkt]

yes. but you're not the first one to ask ;) (http://vjforums.com/showthread.php?threadid=2167) (click on the smiley).

i hope that clears things up a bit.