Hey James,
...yes, they all create the same kind of output...I'd suggest just plugging something into something else if your curious: that's kinda how pd/gem are designed...it'll either work or not, and if not, hopefully spew out some message instead of crashing :-)
Well, I figured it out and it works. I had to send this colorspace RGB message to it, and then it worked fine. When I want to use the output of pix_video as well as the pix_buffer_read, the 'live-input' of the camera isn't shown, but only the rectangle on which it is 'textured'. Creating two pix-video-objects isn't possible I think, also then only the rectangle or cube is shown.
...yeh, everything is "on" by default, if I remember correctly...so you may want to send a [loadbang]->[0] to anything you want off to start...we have discussed this a while ago, and I think we just decided to leave it as is...
Ok, will try the [loadbang]->[0].
Thanks,
Sara