by Luc The Perverse <ataylor_no_spa_am@[EMAIL PROTECTED]
>
Jan 4, 2008 at 05:37 PM
John Nagle wrote:
> Nathan Mates wrote:
>> In article
>> <785160de-8577-4950-9424-14e91887063b@[EMAIL PROTECTED]
>,
>> <bob@[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" (see http://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?
>
> He might be thinking of a ray-tracer. We still can't quite do
> ray-tracing
> in real time for non-trivial scenes on consumer grade hardware. It's
> getting
> close, though. See "http://www.youtube.com/watch?v=oLte5f34ya8".
>
> John Nagle
He's probably mistakenly under the assumption that the triangles are
always necessarily bigger than a pixel.
--
LTP
:)