In article <483aeef9$1@news.povray.org>, dne### [at] sanrrcom says...
> scott wrote:
> > That is going to fail and annoy users even with slight deviations from
 
> > the bounding box face due to parallax errors.  If the user tries to 
> > click on a small area, your algorithm will give the wrong place and the
 
> > user won't be able to click on buttons etc.
> 
> FWIW, if you're too far away from the object in 3D, the interface 
> doesn't let you click on it at all. It's not like you're firing a weapon
 
> or something. :-)
> 
Yeah. Its likely fairly irrelevant. If you are not close enough, you can 
*already* touch the wrong thing, even when every "touch point" is an 
individual prim. Worrying about trying to touch 3-4 pixel on something 
accurately isn't going to matter at all, since you can't reliably do 
that "anyway".

> Come to think of it, you might want to consider how to make it work if 
> you're firing a weapon. I can see people wanting to use this sort of 
> thing to determine where on the dart board your dart landed, etc. But 
> that would be an entirely different algorithm, since you're no longer 
> talking about the screen and camera, and for that matter you're no 
> longer even necessarily running the code on the same server the client 
> is connected to.
> 
The cases I have seen with arrows, they use multiple hollow cylinders, 
which is what we are trying to avoid here. Obviously a collision detect 
for two objects is going to be "slightly" more accurate anyway, since 
you are actually intersecting two objects that can't "hit" in the wrong 
place, unless game gravity reverses itself, its guided somehow, etc.

> You'll need to figure out how to handle it if you're standing on one 
> server and the object you're touching is on another server, too.
> 
Definitely.

-- 
void main () {

    if version = "Vista" {
      call slow_by_half();
      call DRM_everything();
    }
    call functional_code();
  }
  else
    call crash_windows();
}

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