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911medic
05-30-07, 08:02 AM
From Epic Games Forums (http://forums.epicgames.com/showthread.php?t=571019) (translated from German site "PC Games Hardware"):
PCGH: Is there a possibility to make deferred shading and edge-smoothing work at the same time on DX9 graphics cards?
Epic: Unreal Engine 3 uses deferred shading to speed up the calculation of
dynamical lighting and shadows. Integrating this feature together with
multi-sampling requires control of the edge-smoothing at a much deeper level than the DX9 interface can provide. So, on the PC, multi-sampling will only be
supported under DX10.

PCGH: How do the general hardware requirements look like?
Epic: Since optimization work is still ongoing, these details may change every
day. Generally speaking, the game runs quite smooth with DX9 hardware released by NVidia and Ati since 2006. On high-end cards, including the DX10 models, UT3 runs incredibly smooth already. Additionally, we also support shader 2.0 graphics hardware, with only a few technical limitations.

PCGH: Will SLI and Crossfire provide significant advantages?
Epic: We're testing SLI configurations on a regular basis. Their positive
influence can be felt significantly, especially at higher resolutions. So, if one
wants to have full details at very high resolutions, a SLI-system would be the
ideal way to secure optimal performance. We had no opportunity to test crossfire systems yet, but we are expecting similar results.

PCGH: How exacly are you utilizing the functions of Direct X 10?
Epic: Unreal Tournament 3 will ship with full DX10 support, with multi-sampling
being the biggest visible benefit of the new graphics interface. Additionally,
with DX10 under Vista we have the possibility to use the video memory more
efficently, to be able to display textures with a higher grade of detail as it
would be possible with the DX9 path of Vista. Most effects of UT3 are more bound to the fillrate than to basic features like geometry processing. That's why DX10 has a great impact on performance, while we mostly forgo the integration of new features.

PCGH: Will UT3 players be able to benefit from a 64 Bit environment and is there a 64 Bit version anyway?
Epic: To assure compatibility, we tested UT3 with Vista x64 as well. Nonetheless, we're planning to wait and see first, until the OS and its applications will have ripened, before we'll be taking further steps in the 64 Bit direction. With UT2004 we were one of the first developers who ported a title for Windows XP x64. We would've liked to do this with UT3 and Vista x64 as well as shifting all the PCs we're currently developing on to the 64 Bit version of Vista. Unfortunately, full software and driver compatibility isn't there. The basic OS runs stable and it's fun to work with it isolated. But as soon as you want to print something or want to run Maya or 3DSMax together with some third-party plugins you'll get massive problems. But I am sure those can be fixed via service packs and software updates, so PCs with 4 to 8 gigs of ram can establish themselves during the next 12 months.

PCGH: What is the maximun number of threads that can be calculated separately? Will there be a performance-boost if a quad-core system will be used?
Epic: We're able to scale the thread-structure pretty well. There is a primary
thread for the gameplay and a second one for rendering. On systems with more than 2 cores we run additional threads to speed up various calculation-tasks, including physics and data-decompression. So the overall performance benefits greatly from a quad-core processor. Although we haven't looked into the matter yet, I expect an even further performance increase through CPUs with more than 4 cores in future UE-based games.

EDIT: Here's the link to the complete interview (http://www.pcgameshardware.de/?article_id=602522) (in English) direct from the source.

spaceigg
05-30-07, 08:16 AM
good reading.
Thanks!

Trizae
05-30-07, 09:22 AM
Very good reading!

CaptNKILL
05-30-07, 09:49 AM
Hopefully that multi-core info applies to ALL UE3 games and not just UT3 and games made after it is finished.

newparad1gm
05-30-07, 10:53 AM
I appreciate that they are making the effort to integrate working anti-aliasing with the deferred rendering method, even if its only for DX10. Can't wait for this game.

nekrosoft13
05-30-07, 11:20 AM
On high-end cards, including the DX10 models, UT3 runs incredibly smooth already.

GREAT

Eliminator
05-30-07, 11:24 AM
you know what... ive read stuff like this about too many games before and it was not as espected... we will wait and see

OWA
05-30-07, 11:55 AM
Thanks for the interview info. Interesting read.

fivefeet8
05-30-07, 02:09 PM
Very interesting indeed. So the next Unreal Tournament will be:

A. Able to use MSAA only in Dx10 with deffered rendering.
B. More Fillrate limited
C. Multi-Core enhancements

911medic
05-31-07, 07:47 AM
This part does worry me a little bit: [SLI's] positive influence can be felt significantly, especially at higher resolutions. So, if one wants to have full details at very high resolutions, a SLI-system would be the ideal way to secure optimal performance.I wonder what he considers "higher resolutions." Really high, like 30" LCD native, or just 16x12 and greater? Hmmm.

WeReWoLf
05-31-07, 08:05 AM
I think he may have been referring to playing at 65+ fps at high resolutions (ie: 1920)

PCGH_Carsten
05-31-07, 08:14 AM
From Epic Games Forums (http://forums.epicgames.com/showthread.php?t=571019) (translated from German site "PC Games Hardware"):
Dear all,

you're probably aware about the short interview posted here recently. This was taken from our german website and translated. Sadly, this was done wihtout our permission and without even crediting us. But since it has spread so much over the last couple of hours, we've decided to put the whole thing in it's original form online (translating back and forth is never good for accuracy...).

So, here's the real deal:
http://www.pcgameshardware.de/?article_id=602522

have fun. :)

Eliminator
05-31-07, 08:18 AM
But these guys know that they're doing...
thats true... unreal tournament 2003/2004 is very well optimized and still looks good today... i expect nothing less from ut2007

911medic
05-31-07, 08:25 AM
Dear all,

you're probably aware about the short interview posted here recently. This was taken from our german website and translated. Sadly, this was done wihtout our permission and without even crediting us. But since it has spread so much over the last couple of hours, we've decided to put the whole thing in it's original form online (translating back and forth is never good for accuracy...).

So, here's the real deal:
http://www.pcgameshardware.de/?article_id=602522

have fun. :)Thanks for posting the link, but your site was given credit both here, and on the source site I got it from (and linked to in my original post):
From Epic Games Forums (http://forums.epicgames.com/showthread.php?t=571019) (translated from German site "PC Games Hardware"):
The website of the german mag "PC Games Hardware"And since Doc Shock states he translated it from your magazine's website, is permission required to discuss it? Sorry, but once you post it on the www, I think it's fair game.

Thanks for the more complete (and perhaps more accurately-translated) link, though.

Original post updated with the link.

PCGH_Carsten
05-31-07, 08:33 AM
Right you are - I intended this remark to the original "source". Because afaiu links are a method of choice to credit the source. Don't mind.

911medic
05-31-07, 08:35 AM
I think he may have been referring to playing at 65+ fps at high resolutions (ie: 1920)I hope so. I'd like to think my current setup will play it well at my monitor's native res.

911medic
05-31-07, 08:37 AM
Right you are - I intended this remark to the original "source". Because afaiu links are a method of choice to credit the source. Don't mind.OK. Yes, there was not a link to the original interview source, until now. Thanks for posting it, and for the great interview!

911medic
05-31-07, 08:43 AM
A nice new tidbit from the complete interview: PCGH: Can UT 3 be played with full detail on a single core machine?

Tim Sweeney: You can play UT3 at any detail level on any machine; the dependent variable is the frame rate! If you have a fast GPU (and thus aren't GPU-bound), then you'll notice significant performance gains going from a single-core PC to a dual-core PC, and incremental improvements in going to quad-core, at a constant clock rate.Sounds like dual core FTW!

PCGH_Carsten
05-31-07, 08:51 AM
OK. Yes, there was not a link to the original interview source, until now. Thanks for posting it, and for the great interview!
Didn't do it myself, just posted it, but i'll tell my colleague. thx!