FIRE

by prophile on 11/04/2007 22:13, 47 messages, last message: 11/10/2007 17:38, 28045 views, last view: 05/18/2024 15:47

So I got the chance to play Thor on a powerful machine today. A very powerful machine. An 8 core, 3GHz each machine with some insane ATi GPU. It ran at 180 fps, looking at all the water, at 1024x768 with 4x FSAA and highest precision shaders. The water looked awesome. Everything looked awesome, in fact.

Except the fire.

Now, the fire wasn't even animated. Just a static, low-poly model of a flame.

GPU Gems 1, I say unto you. I'm pretty sure your grass shader comes from chapter 7 of said book, so read up on the fire mechanism proposed in chapter 6 :P

It'd be pure awesome.

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#8: Re: ..

by shadow,516 on 11/05/2007 04:09, refers to #7

So, you have a nonexistent motherboard from the future? Nope, I can't beat that.

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#9: Re: ..

by MovingTarget on 11/05/2007 04:17, refers to #8

They have quad SLi out dude. Google it.

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#10: Re: ..

by shadow,516 on 11/05/2007 04:38, refers to #9

not for 8800's
it is ONLY for the 7950GX2 GPUs

http://www.slizone.com/object/slizone_quadsli.html

quad SLI is actually just two double-stacked cards. There are only 2 PCI-E slots used in this configuration.

Motherboards exist that have 4 PCI-E slots, but those are AMD motherboards, and do not support SLI at all.

3x SLI is coming out for every card on their new 780i chipset, but hasn't been released yet.

http://www.tcmagazine.com/comments.php?shownews=16617&catid=2

http://www.tweaktown.com/news/8407/index.html

ALSO, the ultra has a hard time fitting in the proposed motherboard.

"They also had a play with three 8800 Ultra’s but it seems like the rigid SLI bridge that connected the cards didn’t fit that well with the Ultra cards judging by the pictures."

http://media.bestofmicro.com/5/X/54645/original/02NV3SLI.jpg

I HAVE an 8800GTX SLI setup that I built myself. Don't even think you know more about it than I do.

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#11: ..

by Passa on 11/05/2007 06:06

Haha, don't question shadow on this stuff :P

Nice rig anyway (shadow), tried the Crysis demo on it yet? I heard somewhere that Crysis has no support for multi-core CPUs or SLI GPUs at the moment..

And on topic, 8 cores is useless for gaming beyond Sauerbraten anyway. Quad cores still don't have widespread support yet, let alone 8 core CPUs which aren't even available to the common consumer I think?

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#12: Re: ..

by Passa on 11/05/2007 06:08, refers to #11

That and Sauerbraten is not CPU dependent at all really.

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#13: ..

by yvfc_cebtenzzre on 11/05/2007 07:45

Yeah. Thor runs anywhere between 60-95% cpu (on 1 core) on my Core 2 Quad machine, it would appear there isn't any need for such processing power for sauer as it stands. Probably the only way to utilize such power is to run many copies of the game on one machine...

Though... I just tried running 5 copies of sauer and on the 5th copy my display started messing up... driver bugs I guess.

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#14: Re: ..

by Max of S2D [Fr] on 11/05/2007 09:25, refers to #12

It is CPU dependant... for calclight, isn't it ?

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#15: Re: all

by prophile on 11/05/2007 18:08

It's not a gaming rig, it's for heavy video editing work.

Crysis is (I believe) windows only, so that's out :)

But this isn't what I created the topic about!

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#16: ..

by MovingTarget on 11/05/2007 20:01

Oooops my bad. I realized about an hour after my post that it was only for those cards. I don't like double posting, so I just let it sit. Thanks for the pointer!

I'm stuck with one laptop and a Quadro FX 360m. :-(

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#17: Re: ..

by SanHolo on 11/05/2007 20:14, refers to #2

"Number of cores have nothing to do with resolution."

Of course they haven't, but it's a shame to play 1024x768 on an 8-core nevertheless. ;-)


"In fact, sauer can't use multiple cores."

It can if you play sauer on OS X 10.4.8 or newer - multi-threaded OpenGL. Ok, only 2 cores so far, but better than only one. =)

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#18: Re: ..

by shadow,516 on 11/06/2007 02:38, refers to #16

'Tis better to double post than to leave one that makes you look stupid ;)

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#19: Re: ..

by MovingTarget on 11/06/2007 04:11, refers to #18

OK, ok, I get the picture...

Are you gonna start a Sauer ten commandments thingy?

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#20: Re: ..

by SheeEttin on 11/06/2007 04:27, refers to #19

Been there, done that. The 10 Sauer (Mapping) Commandments: http://quadropolis.us/node/422

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#21: Re: ..

by shadow,516 on 11/06/2007 05:18, refers to #19

I'm not sure whether you saw that and were being sarcastic, or it was an incredible coincidence that I did, in fact, make one. ;)

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#22: Re: ..

by JadeMatrix on 11/06/2007 14:19, refers to #11

Passa, Apple has the Pro (quad and eight-core) for not much more than the bigger iMacs. (~$2500)

And I can play Thor just fine on a single G5, so I think it's just graphics cards (although mine is ATI...)

Back on topic, people... he's asking about better fire, not a hardware census. I havn't learned to write shaders yet, or I'd help. For us commoners, what would this proposed fire look like?

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#23: Re: ..

by MovingTarget on 11/06/2007 14:57, refers to #21

I was being sarcastic. This forum needs a <sarcasm> html tag.

By the way, any insight into what parts may be good for the rig I'm building in a few months? It's my first one. Since you seem to be so much better informed than I do.

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#24: Re: ..

by absinth_loosinghiscookies on 11/06/2007 16:31, refers to #17

>It can if you play sauer on OS X 10.4.8 or newer - multi-threaded OpenGL.

no that would have to be specially enabled, and it isn\'t in sauer. i made some tests back in the day and didn\'t notice improvements. that makes sense because sauerbraten is supposedly GPU-bound anyway.

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#25: Re: ..

by yvfc_cebtenzzre on 11/07/2007 02:55, refers to #22

JadeMatrix:

This is the fire mentioned in GPU Gems 1, http://www.nvidia.com/object/demo_vulcan.html

which is what I believe he's talking about

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#26: Re: ..

by JadeMatrix on 11/07/2007 06:32, refers to #25

Looks cool, but IMHO, *we* should do the same thing as the explosions: how about 3D fire that uses the same shader etc. as that model? One thing I dislike in games is looking at the base of the explosion/fire/whatever and seeing a straight line where the particle layers meet the floor.

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#27: Re: ..

by kurtis84 on 11/08/2007 00:37, refers to #26

We already have particles to cover this. Read the docs. As for the OLD models, theres nothing stopping anyone from making new animated md3's. Theres a few nice shader options for .md3, that would work nice for fires.

...or you could just wait a while, and I'll update some of my old maps and the torch models. I plan to remake a torch with animated-trans "flames". Then we can just add a particle ent to it ( the particles that we already have ), to give smoke and fire effects.

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