RE: [Algorithms] Return of the front clip plane

[Tom F. <to...@mu...>]

Moving the near (and possibly far - depends on your app) clip planes
dynamically works very well indeed. Yes, there is the slight artifact that
walking past a tree affects the Z precision of the far-off building that
you're actually looking at, but then it's pretty hard to think of any system
that will do it any better, apart from the Z-partition trick (which is
expensive in some cases - though dead easy for flight sims).

Tom Forsyth - Muckyfoot bloke.
Whizzing and pasting and pooting through the day.

> -----Original Message-----
> From: Steve Wood [mailto:Ste...@im...]
> Sent: 03 August 2000 20:09
> To: 'gda...@li...'
> Subject: RE: [Algorithms] Return of the front clip plane
> 
> 
> > -----Original Message-----
> > From: Jason Zisk [mailto:zi...@n-...]
> > 
> > Another solution is to just make your player's bounding 
> > volume larger so you can't get close enough to stuff to
> > clip into it, this works okay but I find that you have 
> > to keep the player from getting closer than 3 units with 
> > a 1 unit clip because of viewport rotation (just keeping the 
> > player 1 unit away is fine if you are staring straight at a 
> > wall but as soon as you rotate the edges of your viewport 
> > will clip it).
> > 
> 
> For my FPS I used a wall that I walked up to then looked up 
> and down, then
> adjusted my collision detection to prevent the player's view 
> from clipping
> the wall simply because of the view angle.  It seems to work fine...I
> wouldn't want to get into changing the viewport dimensions 
> cause wouldn't it
> distort the scene?  I'd reserve changing viewport dimensions 
> for special
> effects like underwater wooziness.
> 
> R&R
> 
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