Crytekdemo, enabling HDR for Ati card's possible

A

Apple740

Gawd
Joined
Oct 21, 2004
Messages
641
There is HDR in the demo (with my X800) if you edit the system config file:

r_HDRLevel = "1.000000"
r_HDRRendering = "1"

(Default =
r_HDRLevel = "3.000000" (this is too bright)
r_HDRRendering = "0")

If you hit the tab bar in the demo you can look around, zooming in/out etc. You see the HDR fading in/out just as with Openexr. Also the colours are more warm/vivit. I've read Nv users can't enable it, why I don't know. Ironic, in FarCry 1.3 itself it's Ati who can't do
(Openexr) HDR, only Nv can. :)

without
kk.jpg


with HDR
ff.jpg


without
ll.jpg


with HDR
mm.jpg
 
I gotta say the game even looks good without HDR. Any info on Crytek's method in this demo?

PS: The Depth Of Field effect is fairly impressive as well.
 
Interesting. Looks just as overkill as OpenEXR though. I prefer the default lighting, but I'll try this when I'm home tomorrow and perhaps post a few more 2048 4xAA screenshots.

Good find :)
 
Is it as big a drain on performance as OpenEXR? And does it kill AA?

If so, I think I'd prefer it to OpenEXR.

Either way, HDR is frickin' awesome, and I hope that next year we see every game including it. (On the other hand, we'll go through a wave of games that abuse it, too.)
 
Yeah the HDR around now (including this) is really overexposed. Once they refine it, it should be sweet. I like the default lighting effects, it's the perfect exposure in my opinion.

I'll do benches / screenie comparisons with it on and off when I get home tomorrow at some point, maybe before I slap on the AS3.
 
Apple740 said:
However AA doesn't work properly with HDR, I'll get a better HDR performance if i turn off AA completely:

1024, noAA/8xAF = Min: 25 Max: 98 Avg: 57.614

1024, noAA/8xAF & HDR = Min: 24 Max: 68 Avg: 47.743

So the performance without AA/with HDR is slightly better as no HDR/4xAA.
Click to expand...

In another post he mentioned it is disabled automatically.
 
Those demos just go to show how Far Cry was just the tip of the iceberg for the Cry Engine, and still much of it remains untapped.
 
Noodle Boy said:
Those demos just go to show how Far Cry was just the tip of the iceberg for the Cry Engine, and still much of it remains untapped.
Click to expand...
I concur! I'd like to see a HL2 type game on the Crytek engine,
 
that HDR looks pretty good...as good as OpenEXR maybe, I'd have to see it in motion to be sure...I wonder what the performance is like with it turned on? anyone know?
 
^eMpTy^ said:
that HDR looks pretty good...as good as OpenEXR maybe, I'd have to see it in motion to be sure...I wonder what the performance is like with it turned on? anyone know?
Click to expand...

Well based on the performance of OPENEXR on the 6800 series, I would have to say that the HDR implemented on ATi's cards should have a similiar performance hit, if not more so.
 
I'll bench tomorrow in a few resolutions and a few different HDR settings if no one beats me to it.

EDIT : Looks like Beyond3D did. In that case, I can make some videos instead if anyone can host them.
 
Whats with the uber "hdr" performance?
There's barely a difference from 4AA and HDR.. btw he said AA doesn't work, but he gets better HDR performance with it disabled :confused:
 
You got to love how HDR looks. :) Although it does look alittle overexposed in these pics.

So hows the performance hit? I'm reading through the B3D link now but it'll still be nice to hear some more numbers.
 
wOOt :cool:

i wont use it unless AA somehow can be included but wOOt anyways. :D
 
Now many of you see, lol. Looks good -- but I wasn't too impressed by watching the CryTeck Demo.. It just seems like they added the cenimatic film filter over the render (Sorta like when you get hit in FarCry or die.. the blur/desaturation type effect) It's all been seen before and is possible on all the modern generation of cards. Although they need to hurry up and release it as a game cause I'd be playing it like none other >.>
 
You know I always wondered about this. Because I never saw farcry notes saying it was SPECIFICALLY openEXR. Just that HDR would be included ("unknown beta feature as it's not documented in the readme) I asked that question long time ago. Kind of like how (To Brent) you weren't really sure at first if the normal texture compression was infact using 3Dc (which it is for 1.3, Beyond3d I believe explaining it)


*of course if I'm wrong with anything sorry, I'm just stating a thought*
 
Apple740 said:
If you hit the tab bar in the demo you can look around, zooming in/out etc. You see the HDR fading in/out just as with Openexr. Also the colours are more warm/vivit. I've read Nv users can't enable it, why I don't know. Ironic, in FarCry 1.3 itself it's Ati who can't do
(Openexr) HDR, only Nv can. :)
Click to expand...

Crytek's requirement for HDR in FarCry was floating-point 16-bit precision, ATI can only do integer 8-bit, resulting in a contrast ratio more equal to MDR or LDR than HDR, and HDR that was subpar to what Crytek wanted in the game. Can you provide 1280x1024 shots of the first two comparisons? I'd like to see them in high res, though at the sizes you provided it appears the shots are lacking in color range, second one especially.
 
tranCendenZ said:
Crytek's requirement for HDR in FarCry was floating-point 16-bit precision, ATI can only do integer 8-bit, resulting in a contrast ratio more equal to MDR or LDR than HDR, and HDR that was subpar to what Crytek wanted in the game. Can you provide 1280x1024 shots of the first two comparisons? I'd like to see them in high res, though at the sizes you provided it appears the shots are lacking in color range, second one especially.
Click to expand...


*slapping leg* *laughing* so KNEW you were comment like this! :D all I'm saying if it still looks good...... whoooooo cares ;)
 
Just my opinion but the shots with HDR look like p00p. Are developers trying to make games look like the fugly flashing neon light chassis they run on?
 
midgetherder said:
Just my opinion but the shots with HDR look like p00p. Are developers trying to make games look like the fugly flashing neon light chassis they run on?
Click to expand...

You have to see it in action - screenshots can't convey how it appears (this from my experience of the v1.3 implementation for NVidia cards). The lighting looks over exaggerated, but it should fade down as if your eyes were adjusting to it. It really is pretty impressive to see even though I was initially unconvinced.
 
i can't tell the difference between this compared to a nvida card. however, i'm guessing HDR is now a good thing considering ati cards can do it more or less the same (from an aesthetic viewpoint)? :rolleyes:
 
tornadotsunamilife said:
i'm guessing HDR is now a good thing considering ati cards can do it more or less the same (from an aesthetic viewpoint)? :rolleyes:
Click to expand...

i was hopping that nv owners now could admit that it looks ugly when ati can do it to
 
The boat seen out in the water is too dark. Don't know if that is the 8bit integer at fault or Crytek.
 
midgetherder said:
Just my opinion but the shots with HDR look like p00p. Are developers trying to make games look like the fugly flashing neon light chassis they run on?
Click to expand...
They don't look nearly as bad as the HDR for the 6800's which is a performance cribbleing overexposure.
 
I actually like the HDR effects. I think it makes the lighting look much more realistic. Not that the lighting without is really bad, but it's just too flat. I think the jungle pick shows a very good example of how it can enhance the IQ of future games.
 
R1ckCa1n said:
They don't look nearly as bad as the HDR for the 6800's which is a performance cribbleing overexposure.
Click to expand...

The HDR that is implemented in OpenEXR is closer the HDR that CryTek actually wanted. So in terms of which HDR looks better, it's subjective. I do however like the color blending of the nVidia version (probably just because it's 16bit) but the ATi thing is nice, it really doesn't loose much which sorta is weird. The perfromance difference percentage wise is about the same.. so it's really subjective.

And talk about overexposure? All HDR is going to have overexposure at some point or another... simply because it's not fully implemented and tweaked.. ATi and nVidia..
 
At the risk of betraying my lack of technical knowledge and also having missed the early talk about this CryTech demo - is the demonstrated lighting effect going to work on NVidia hardware, and with the apparent lack of performance hit, or is it ATI specific at the moment?
 
mulpsmebeauty said:
At the risk of betraying my lack of technical knowledge and also having missed the early talk about this CryTech demo - is the demonstrated lighting effect going to work on NVidia hardware, and with the apparent lack of performance hit, or is it ATI specific at the moment?
Click to expand...

The ATi effect is similar to the "nVidia implementation" in FarCry 1.3, but it only uses 8bit FPB were as the OpenEXR implementation (1.3) uses 16bit FPB.
 
DropTech said:
The ATi effect is similar to the "nVidia implementation" in FarCry 1.3, but it only uses 8bit FPB were as the OpenEXR implementation (1.3) uses 16bit FPB.
Click to expand...

Adding more from personal experience: It looks pretty good. little buggy, but nod does go to on my 6800gt (Farcry THE GAME experience, seeing how I can't compare at this point obviously with an ATI card and the demo being different) Can't really do a side by side obviously. Yet an EXCELLENT way to glimpse of what "true HDR" for TranC looks like.
 
DropTech said:
The ATi effect is similar to the "nVidia implementation" in FarCry 1.3, but it only uses 8bit FPB were as the OpenEXR implementation (1.3) uses 16bit FPB.
Click to expand...

the ati rendering path dont use floating point buffer, its using mrt for hdr rendering.
 
Does any of this FPB stuff mean it can or can't be adapted to nVidia cards? I'd like to play games in the future with these effects and get decent frame rates and maybe a bit of aa if possible.
 
I guess I need to see HDR in action before making a judgement but from looking at the screenshots I can see a few things that look wrong:

- Light blooms (glow) looks way overblown.
- Seems like the light is seeping into areas of the image it shouldn't, especially on the horizontal access. Take a look at the left index finger of the guy checking his visor. What the hell?
- Real sunlight is closer to white/yellow (depending on time of day) the outdoor shots are way to red/tungsten like. Looks like he's on fire, not standing in sunlight.
 
mulpsmebeauty said:
Does any of this FPB stuff mean it can or can't be adapted to nVidia cards? I'd like to play games in the future with these effects and get decent frame rates and maybe a bit of aa if possible.
Click to expand...

Well from what I've just learned (From both a post here and doing more research) I don't believe ATi uses a FPB method for their HDR implementation (but I couldn't be wrong) I believe the colors are staticly adaptive to the light source. I don't know if that qualifies as FPB but whatever.

As for your comment, right now, the nVidia series (6x00) has a more technologically advanced core then the ATi (r4x0) series in terms of FPB, Dynamics.. all that stuff.

And again, about the CryTek and Ruby demo -- I've seen them and while yes, they are impressive... It's nothing that hasn't been seen before.
 
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