Though that's an argument, it's one that to date doesn't appear to be a differentiating factor, and won't be until PS3 shows that extra performance is applied in game-differntiating ways. From Joshua's example, it's likely the cited game isn't doing anything on PS3 that XB360 hasn't the potential to do itself, so citing that game as an example of where performance is a differentiating factor. That is, from One's inital statement, 'if Motorstorm could be realized on other platforms', chances are very high that Motorstrom could be realized on other platforms a it not doing anything technically beyond what's expected from XB360.
Exactly. One made the flippant statement about Motorstorm's inability, in his opinion, to be realized on the 360. Yet the very feature he showed off in his screenshot examples is something explicitly mentioned to be coming to a future 360 game.
The big difference here is that Ps3 is doing that now, and the software on XB360 isn't, but that seems to be more the software choices made. Future games are set to show similar terrain deformation, for example.
Exactly. Again, we could go tit for tat and name many features and software implimentations in current games that we could use as such arguements. Take a launch game like Kameo, which to this day few games have done many of the neat things it does. Does it mean the 360 is no longer capable of doing these things or the PS3 cannot do them? Or how about the Lost Planet explosions?
Back to Motorstorm, besides the plastic look, the bumps are not even realtime deformed terrain. They are textures (parallax mapping), which if the R500 series and G70 series is any indicator, will be something the 360 does very well. The ruts as variable terrain is an old concept in games (see: driving in watery sand or going off the road into the dirt waaaay back on the SNES); Motorstorm does it to a much higher degree of accuracy and scale but this is a feature specifically planned for the 360 by 3rd parties (i.e. not even an exclusive).
The point on the middleware was simple: Middleware is rarely the most performant solution to show off how "powerful" a platform is. If Motorstom doesn't even require a ground-up solution for Motorstorm on the PS3 to extract the necessary performance to make all this possible, and general PS3 middleware will suffice, then I have a hard time believing that this is some great "proof" the 360 cannot realize similar results.
Besides the terrain, the other major physics driven aspect of the game is the damage model. Of course a number of 360 games have shown such technology, and one need look no further than a PS2/Xbox1 port to see that the 360 is more than sufficient to do visually impressive car collissions and deformation. I give you Burnout Revenge:
http://media.xbox360.ign.com/media/760/760830/img_3383900.html
http://media.xbox360.ign.com/media/760/760830/img_3391886.html
http://media.xbox360.ign.com/media/760/760830/img_3362138.html
http://media.xbox360.ign.com/media/760/760830/img_3327494.html
http://media.xbox360.ign.com/media/760/760830/img_3306778.html
http://media.xbox360.ign.com/media/760/760830/img_3383837.html
http://media.xbox360.ign.com/media/760/760830/img_3391893.html
http://media.xbox360.ign.com/media/760/760830/img_3383889.html
http://media.xbox360.ign.com/media/760/760830/img_3383887.html
http://media.xbox360.ign.com/media/760/760830/img_3383870.html
http://media.xbox360.ign.com/media/760/760830/img_3383904.html
http://media.xbox360.ign.com/media/760/760830/img_3330037.html
http://media.xbox360.ign.com/media/760/760830/img_3306780.html
And if the performance leap is 4x or more?
What if?
That is the problem with the post (edit: not yours Arwin, but in general), the implied assertion as fact. A multiplatform developer came over and said, "Ok guys, for our Game -- Game XYZ -- the overall performance differential is 4x on Cell" than I would have no problem accepting that as fact for his design. If he said, "In situations A, B, and C we see a 10x speed up, in D, E, and F a 50% slow down, and a net gain for 4x" again I would defer. He knows his game engine a LOT better than I do.
But if some casual forum poster is asserting that a certain technology gives an overall 4x speed up, or that a game isn't even possible on another platform by implied power, well, we should question that. And when certain techniques and effects are given as a reason a game cannot be realized on another platform -- when the other platform is more than capable of such because games already demonstrate the same general ideas and techniques -- then we should start asking questions.
I agree, there are situations where Cell is a big win in performance over Xenon, especially in SIMD situations and code that works nicely with the Local Store (size; system memory access patterns). I am not saying that the PS3 and Cell won't do some amazing stuff.
I just don't see Motorstorm as proof of this. And I really scoff at the idea at talking Motorstorm up as a game that cannot even be realized on the 360 when it is either already clearly demonstrating the same general technologies or they are already announced. Where is the proof to back up such statements? Opinions are not facts.