On Jan 5, 12:04 pm, b...@[EMAIL PROTECTED]
wrote:
> On Jan 4, 10:11 pm, Luc The Perverse
>
>
>
> <ataylor_no_spa_am@[EMAIL PROTECTED]
> wrote:
> > b...@[EMAIL PROTECTED]
wrote:
> > > On Jan 4, 2:13 am, nat...@[EMAIL PROTECTED]
(Nathan Mates) wrote:
> > >> In article
<785160de-8577-4950-9424-14e918870...@[EMAIL PROTECTED]
>,
>
> > >> <b...@[EMAIL PROTECTED]
> wrote:
> > >>> I was just wondering if we're going to start seeing computer games
> > >>> where the primitive is points rather than triangles.
> > >> You can do single-pixel points just fine in DirectX right now.
[I
> > >> assume OpenGL is similar.] However, a huge screen (e.g. 1600x1200
or
> > >> bigger) would need a lot of single points to be visible. There's
also
> > >> the problem that the hardware (graphics cards) tend to sup****t
> > >> triangles *great* and everything else not so well. This is a
"network
> > >> effect" (seehttp://en.wikipedia.org/wiki/Network_effect)
where
> > >> what's sup****ted well gets a lot more sup****t, and everything else
> > >> gets ignored.
>
> > >> I suppose the bigger question is *why* would you think that
points
> > >> (maybe you mean spheres?) would look better?
>
> > >> Nathan Mates
> > >> --
> > >> <*> Nathan Mates - personal webpagehttp://www.visi.com/~nathan/
> > >> # Programmer at Pandemic Studios --http://www.pandemicstudios.com/
> > >> # NOT speaking for Pandemic Studios. "Care not what the neighbors
> > >> # think. What are the facts, and to how many decimal places?" -R.A.
Heinlein
>
> > > Points are just easier to work with. You don't have to worry about
>
> > > the complexities of closing meshes and such. You could probably
make
>
> > > a decent point model just from a 2d image of someone. Doing that
> > > with
>
> > > meshes is a hassle.
>
> > > Also, 3d laser scanning translates more naturally into point clouds.
>
> > > Plus, points are closer to how it is in the real world.
>
> > But . . . what happens if you zoom in? Either your "point" has width
to
> > it in which case it is not a point at all, or eventually the target
> > becomes see through
>
> > --
> > LTP
>
> > :)- Hide quoted text -
>
> > - Show quoted text -
>
> You would want to choose a point density appropriate for the maximum
>
> zoom level.
Sounds more like spherical approximation (using spheres instead of
triangles)? You could likely change the detail level based on the
distance, in real time...
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