POV-Ray : Newsgroups : povray.advanced-users : virtual reality : Re: virtual reality Server Time
30 Jul 2024 00:31:44 EDT (-0400)
  Re: virtual reality  
From: Abe Heckenbach
Date: 12 Aug 2000 21:27:52
Message: <3995FE39.EB19CF59@vrml.k12.la.us>
Alright, so you have a good point, but I still think it would be a cool
thing to discuss with interested people! And I didn't mean to imply that
it could run a single 1.5Ghz P4(I just said that to show how quickly CPU
power is increasing),
but maybe in say, 5 years(imagine 20 10Ghz P10 processors running on a
linux cluster(200,000Mhz) plus possible software improvements, and/or
specialized hardware(like maybe multiple PCI cards that could act as
addition Floating.point power).

To quote my original message,
"I would like ... to discuss virtual reality, (everything necessary to a
finished VRE Setup(hardware and software requirements), but completely
from a theoretical point of view)"
by this I meant not that a VRE setup would use ray tracing, just that it
would be cool to discuss different issues concerning it.

PS: And I didn't mean to be rude or anything.. sorry if it seemed that
way.

	 Abeh


Simon Lemieux wrote:
> 
> > Simon> thanx, but the reason I want to use ray tracing is for the
> > realisium, if virtual reality mean triing to trick the participant into
> > believing he is in a different env., then ray tracing just seems
> > right(since it models light rays and all),  Also I realise that
> > computers are just not fast enough today, but they will be in the maybe
> > not so distance future(Intel's P4, to be released this year, will be
> > 1.5GHz+). Plus you can also make dedicated hardware, and software
> > improvments. But hey, thanx anyways, I will read up more on openGL.
> 
> In a not so <great> distant future??
> Look here I got a PII@433Mhz and I get One frame of Povray for a Minimum of "A
> few seconds" some time "A few minutes" and rarely but it happens "A few hours or
> so..."
> The eye perceive about 30 frames per second...  which means you would have to
> render every frame in 1/30 seconds...  that is if you divide the speed of my
> computer (433) for let say a 1 second render of povray by (1/30) you get the
> computer of your dream and it's probably not a Pentium since it should have
> 12990Mhz!!! (<currentSpee>/(1/<fps>)) = (433/(1/30)) = 12990Mhz!
> And a one second render of povray with my 433 isn't worth looking at...  You
> need at least a minute to about what you could get with OpenGL...
> (<dreamMhz>*<secs> = 12990Mhz * 60 = 779400Mhz....)
> 
> This... is... INSANE!
> We won't be living in that dream future!
> 
> Believe me for your Virtual Reality, OpenGL is the thing...  but I like adding
> Povray textures, povray light effects into OpenGL...  yeah, it's a fake, but I
> can't even see the difference when it's well programmed!
> 
> I hope I didn't scare you tho,
>   Keep trying,
>         Simon
> 
> PS:  Mmmm  779400Mhz  8P~~~~~~


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