Mirror’s Edge: Do we have a winner?

And now we get to the final test. Something truly different: Mirror’s Edge.

This is an EA game. Ben had to leave before we got to this part of the test, he does have a wife and kid after all, so I went at this one alone.

I’d never played Mirror’s Edge. I’d seen the videos, it looked interesting. You play as a girl, Faith, a runner. You run across rooftops, through buildings, it’s all very parkour-like. You’re often being pursued by “blues”, police offers, as you run through the game. I won’t give away any plot details here but this game, I liked.

The GPU accelerated PhysX impacted things like how glass shatters and the presence of destructible cloth. We posted a video of what the game looks like with NVIDIA GPU accelerated PhysX enabled late last year:

"Here is the side by side video showing better what DICE has added to Mirror's Edge for the PC with PhysX. Please note that the makers of the video (not us) slowed down the game during some effects to better show them off. The slow downs are not performance related issues. Also, the video is best viewed in full screen mode (the button in the bottom right corner)."

 

In Derek’s blog about the game he said the following:

“We still want to really get our hands on the game to see if it feels worth it, but from this video, we can at least say that there is more positive visual impact in Mirror's Edge than any major title that has used PhysX to date. NVIDIA is really trying to get developers to build something compelling out of PhysX, and Mirror's Edge has potential. We are anxious to see if the follow through is there.”

Well, we have had our hands on the game and I’ve played it quite a bit. I started with PhysX enabled. I was looking for the SSD-effect. I wanted to play with it on then take it away and see if I missed it. I played through the first couple of chapters with PhysX enabled, fell in lust with the game and then turned off PhysX.

I missed it.

I actually missed it. What did it for me was the way the glass shattered. When I was being pursued by blues and they were firing at me as I ran through a hallway full of windows, the hardware accelerated PhysX version was more believable. I felt more like I was in a movie than in a video game. Don’t get me wrong, it wasn’t hyper realistic, but the effect was noticeable.

I replayed a couple of chapters and then played some new ones with PhysX disabled now before turning it back on and repeating the test.

The impact of GPU accelerated PhysX was noticeable. EA had done it right.

The Verdict?

So am I sold? Would I gladly choose a slower NVIDIA part because of PhysX support? Of course not.

The reason why I enjoyed GPU accelerated PhysX in Mirror’s Edge was because it’s a good game to begin with. The implementation is subtle, but it augments an already visually interesting title. It makes the gameplay experience slightly more engrossing.

It’s a nice bonus if I already own a NVIDIA GPU, it’s not a reason for buying one.

The fact of the matter is that Mirror’s Edge should be the bare minimum requirement for GPU accelerated PhysX in games. The game has to be good to begin with and the effects should be the cherry on top. Crappy titles and gimmicky physics aren’t going to convince anyone. Aggressive marketing on top of that is merely going to push people like us to call GPU accelerated PhysX out for what it is. I can’t even call the overall implementations I’ve seen in games half baked, the oven isn’t even preheated yet. Mirror’s Edge so far is an outlier. You can pick a string of cheese off of a casserole and like it, but without some serious time in the oven it’s not going to be a good meal.

Then there’s the OpenCL argument. NVIDIA won’t port PhysX to OpenCL, at least not anytime soon. But Havok is being ported to OpenCL, that means by the end of this year all games that use OpenCL Havok can use GPU accelerated physics on any OpenCL compliant video card (NVIDIA, ATI and Intel when Larrabee comes out).

While I do believe that NVIDIA and EA were on to something with the implementation of PhysX in Mirror’s Edge, I do not believe NVIDIA is strong enough to drive the entire market on its own. Cross platform APIs like OpenCL will be the future of GPU accelerated physics, they have to be, simply because NVIDIA isn’t the only game in town. The majority of PhysX titles aren’t accelerated on NVIDIA GPUs, I would suspect that it won’t take too long for OpenCL accelerated Havok titles to equal that number once it’s ready.

Until we get a standard for GPU accelerated physics that all GPU vendors can use or until NVIDIA can somehow convince every major game developer to include compelling features that will only be accelerated on NVIDIA hardware, hardware PhysX will be nothing more than fancy lettering on a cake.

You wanted us to look at PhysX in a review of an ATI GPU, and there you have it.

The Unreal Tournament 3 PhysX Mod Pack: Finally, a Major Title CUDA - Oh there’s More
Comments Locked

294 Comments

View All Comments

  • SiliconDoc - Monday, April 6, 2009 - link

    Well thanks for stomping the red rooster into the ground, definitively, after proving, once again, that what an idiot blabbering pussbag red spews about without a clue should not be swallowed with lust like a loose girl.
    I mean it's about time the reds just shut their stupid traps - 6 months of bs and lies will piss any decent human being off. Heck, it pissed off NVidia, and they're paid to not get angry. lol
  • tamalero - Sunday, April 5, 2009 - link

    arggh, lots of typoos.

    "Mirrors Edge's PhysX in other hand does show indeed add a lot of graphical feel. " should have been : Mirrors Edge's physx in other hand, does indeed show a lot of new details.
  • lk7600 - Friday, April 3, 2009 - link


    Can you please die? Prefearbly by getting crushed to death, or by getting your face cut to shreds with a
    pocketknife.

    I hope that you get curb-stomped, f ucking retard

    Shut the *beep* up f aggot, before you get your face bashed in and cut
    to ribbons, and your throat slit.
  • papapapapapapapababy - Saturday, April 4, 2009 - link

    Yes, i love you too, silly girl.
  • lk7600 - Friday, April 3, 2009 - link


    Can you please remove yourself from the gene pool? Preferably in the most painful and agonizing way possible? Retard

  • magnetar68 - Thursday, April 2, 2009 - link

    Firstly, I agree with the articles basic premise that lack of convincing titles for PhysX/CUDA means this is not a weighted factor for most people.

    I am not most people, however, and I enjoy running NVIDIA's PhysX and CUDA SDK samples and learning how they work, so I would sacrifice some performance/quality to have access to these features (even spend a little more for them).

    The main point I would like to make, however, is that I like the fact that NVIDIA is out there pushing these capabilities. Yes, until we have cross-platform OpenCL, physics and GPGPU apps will not be ubiquitous; but NVIDIA is working with developers to push these capabilities (and 3D Stereo with 3D VISION) and this is pulling the broader market to head in this direction. I think that vision/leadership is a great thing and therefore I buy NVIDIA GPUs.

    I realize that ATI was pushing physics with Havok and GPGPU programming early (I think before NVIDIA), but NVIDIA has done a better job of executing on these technologies (you don't get credit for thinking about it, you get credit for doing it).

    The reality is that games will be way cooler when the you extrapolate from Mirror's Edge to what will be around down the road. Without companies like NVIDIA out there making solid progress on executing on delivering these capabilities, we will never get there. That has value to me I am willing to pay a little for. Having said that, performance has to be reasonable close for this to be true.
  • JarredWalton - Thursday, April 2, 2009 - link

    Games will be better when we get better effects, and PhysX has some potential to do that. However, the past is a clear indication that developers aren't going to fully support PhysX until it works on every mainstream card out there. Pretty much it means NVIDIA pays people to add PhysX support (either in hardware or other ways), and OpenCL is what will really create an installed user base for that sort of functionality.

    If you're a dev, what would you rather do: work on separate code paths for CUDA and PhysX and forget about all other GPUs, or wait for OpenCL and support all GPUs with one code path? Look at the number of "DX10.1" titles for a good indication.
  • josh6079 - Thursday, April 2, 2009 - link

    Agreed.

    NVidia has certainly received credit for getting accelerated physics moving, but its momentum stops when they couple it to CUDA when offering it to discrete graphics cards outside of the GeForce family.
  • Hrel - Thursday, April 2, 2009 - link

    Still no 3D Mark scores, STILL no low-med resolutions.

    Thanks for including the HD4850, where's the GTS250??? Or do you guys still not have one? Well, you could always use a 9800GTX+ instead, and actually label it correctly this time. Anyway, thanks for the review and all the info on CUDA and PhysX; pretty much just confirmed what I already knew; none of it matters until it's cross-platform.
  • 7Enigma - Friday, April 3, 2009 - link

    3DMark can be found in just about every other review. I personally don't care, but realize people compete on the Orb, and since it's just a simple benchmark to run it probably could be included without much work. The only problem I see (and agree with) is the highly optimized nature both Nvidia and ATI put on the PCVantage/3DMark benchmarks. They don't really tell you much about anything IMO. I'd argue they not only don't tell you about future games (since to my knowledge no (one?) games have ever used an engine from the benchmarks), nor do they tell you much between cards from different brands since they look for every opportunity to tweak them for the highest score, regardless of whether it has any effect in realworld performance.

    What low-med resolution are you asking for? 1280X1024 is the only one I'd like to see (as that's what I and probably 25-50% of all gamers are still using), but I can see why in most cases they don't test it (you have to go to low end cards to have an issue with playable framerates on anything 4850 and above at that resolution). Xbitlabs' review did include 1280X1024, but as you'll see, unless you are playing Crysis:Warhead, and to a lesser extent Farcry2 with max graphics settings and high levels of AA you are normally in the high double to triple digits in terms of framerate. Any resolution lower than that, you've got to be on integrated video to care about!

Log in

Don't have an account? Sign up now