The whole point of HDR is that there is specific hardware in the chip that is used to produce the effect. Valve's HDR implemenatation is not real HDR, it's more like an emulation and it does not use the dedicated HDR hardware in the chip. It's a decent hack for now, but what's the point of having these fancy new GPUs with SM3/HDR in the architecture if they're not going to be utilized properly?
Originally posted by: JAG87
Originally posted by: tvdang7
thats y i like ati. looks great on the new maps on source nuke and militia.
Ok, to clarify things here:
nVidia CAN do HDR + AA. nVidia can't do openEXR HDR, like the guy many posts above said (wise guy, listen to him).
The practical HDR, is the one implemented by Valve. They were the first to introduce it, and their HDR works different and BETTER from the otherones available such as the one in Farcry (openEXR). Valve's HDR can be rendered by nVidia and ATI cards with AA simultaneously.
When I say practical, I say it because Valve's HDR affects performance very little, as it uses shaders to render HDR. once again has of now, ATI has the ball in their hands, because their cards handle SM 3.0 like butter (because of the 48 vertex shader units). But we cant speak the truth until we see nVidias 32/32 solution (at least thats what rumours speak of) with G71.
So stop whining about nVidia doesn't do HDR + AA. It does, and Valve's HDR is the HDR that will be used mostly in games, because it is the most efficient. No1 gives a fu-ck about openEXR, no1 including nVidia.
You were off to a good start there, until the last sentence. So far there are 3 games that I can think of that use EXR HDR - Farcry, Chaos Theory and SS2. Valve developed their own HDR solution, but that required more work, and it is by no means a standard, not to mention that it does have some limitations compared to EXR HDR. It's possible that other devs will also code their own HDR lighing models, but so far no one else besides Valve has done it, and I doubt anyone else will since all high end cards now support EXR HDR in hardware.
By that definition, it also works on the 9800p and the x800's. But that doesnt mean it will work in any other game not code by Valve.
Valve used an integer format for great compatibility, but it doesn't look as good (though it takes less of a performance hit since float HDR and AA murders bandwidth).
Forward-looking game engines are going to use float-based HDR. Oblivion, the fourth Elder Scrolls roleplaying game from Bethesda does, as one example. Read Beyond3D's interview with them (shameless self-promotion, I know <g>).
Forward-looking game engines are going to use float-based HDR. Oblivion, the fourth Elder Scrolls roleplaying game from Bethesda does, as one example. Read Beyond3D's interview with them (shameless self-promotion, I know <g>).
Yep, by his logic then we don't need SM3 capable chips either because the same things can be accomplished with SM2 hardware. Hell, let's just mae GPUs as simple as possible and let the game developers do all thsi stuff in software. Who needs hardware accelerated features?
can some one answer this. is there something in the newer generation that helps with HDR? compared to the older. i upgraded from an x800 XT and in lost cost i get like 30-40 frames with out HDR and with the new card im 40-65 WITH HDR
This is wrong in two ways. Its not because of the "massive frame hit" of using HDR+AA. Its because the NV cards cant do OpenEXR HDR with AA at the same time. Secondly, SLI in Farcry doesnt speed up frames with HDR applied at all. Which is pretty irnonic to me, since NV likes to showcase HDR+SLI+SM3 in the 'Power of Three", yet they dont even play well together in a NV funded game.
Originally posted by: otispunkmeyer
nice one morph.....you just confirmed to me you are an absolute ATI back door burglar, your posts no longer exist to me.
thats just pure BS............nvidia couldnt figure out, yeah because nvidia dont emply real engineers
Actually, I remember that as well. Not the exact wording, but it got a lot of press at the time.
Why do you always have to use insults? Once again, you can flip that argument around for the NV fans. Now that ATi has the more advanced GPU, it doesnt matter. A certain someone on these forums used to mock people who bought X800 ATi cards, for buying "2 year old tech", whos got old tech now? Yet not one word about that. Funny how that works.
Guys, stop talking about OpenEXR HDR as if it's something entirely different. That's just a FP16 format.
well i find it wierd how cod2 runs with such low frame rates without HDR. just wonder what u would get if it did.
:disgust:
Both of you (and anyone else throwing insults around, backhanded or not) -- take it to PMs if you want to have a pissing contest, ok? Baiting and insulting each other is not constructive.
Negative ghostrider.
The only bone I have is with balancing, shotguns need to be removed from the game entirely.
Please point out the last time I flat-out insulted/called out someone in a thread who didn't instigate things initially.
Wreckage used the term "ATI Dongle Boys", then Ackmed told him to not throw insults around, then *you* came in and insulted him. I don't care if he has insulted people in the past; his post may have been toeing the line, but you jumped in and ecsalated things just for the hell of it. And then, when I called you on it, you snapped back and insulted me.
What is this, recess in second grade? Grow up, please, before a moderator makes you take some time off. Keep the conversation on-topic, or take it to PMs if you insist on throwing insults around.
I think the whole HDR+AA argument is moot.
G70's and G71's will run any game from now until HDR games become widely available.
I think we'll see that by the time HDR becomes mainstream, even a X1900XTX will struggle with HDR+AA in the newest demanding games.
HDR+AA is just another technology showcase just like HDR was back when G70 was introduced.
The fact that a whole 5 games can take adavantage of HDR makes buying an X1900XTX just for this feature pretty silly. Unless of course you dont plan to upgrade for a while.
G70's and G71's will run any game from now until HDR games become widely available.
I think we'll see that by the time HDR becomes mainstream, even a X1900XTX will struggle with HDR+AA in the newest demanding games.
HDR+AA is just another technology showcase just like HDR was back when G70 was introduced.
The fact that a whole 5 games can take adavantage of HDR makes buying an X1900XTX just for this feature pretty silly. Unless of course you dont plan to upgrade for a while.
Valve's HDR is the winning solution. Just wait and see how many games are going to be released with "HDR by Valve Software" trademark.
EXR blows right now, and will not be used widely until we have unified shaders. and that wont be for a looooooong time. id guestimate around late 2007 to 2008.
EXR blows right now, and will not be used widely until we have unified shaders. and that wont be for a looooooong time. id guestimate around late 2007 to 2008.
thecoolnessrune
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- Jun 8, 2005
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