Originally Posted by rabidgnome229
No need to put this in a game - I'd play with the sim for hours
It isn't a scientific simulation - it's eye candy and damned impressive eye candy. No need to jump all over it and nit pick
The whole point is to make it look real, so nit picking it is perfectly acceptable.
Originally Posted by 003
Yea I know that pre- animated scenes can be used. But, I really do doubt this one is pre-animated. It may be, but we don't know the source. They could have developed a breakthrough physics API and be running it on hardware specifically designed to process it, kind of like the PhysX card (which was not a great implementation, but the best so far).
The telltale sign that this is done in realtime is that if you look closely at all the little pices of broken stuff, they are relatively simple geometric shapes. What it's probably doing is putting them together to form the structures, and then when it breaks, the pieces are always the same, but their movement is calculated in realtime. And the little pieces can not be broken up any smaller; the large structures are made of the pre defined smaller pieces.
That scenario is perfectly plausible and well within the realm of possibility.
If you go search for some of the original ageia physx demo videos, they are not so far off from what is being done here.
By noticing those simple geometries, you have pointed out a shortcut. Even with such a simplification, I'd still put money on this not being in real time. My entire Master's Thesis deals with simulating the interaction of clothing with the human body - something that involves many of the same contact algorithms and material models that would be used for a physics simulation, and it takes several hours to get one second of animation. And this is with assuming rigid body motion for the human mannequin and utilizing coarse meshes - gross simplifications of reality.
Specific Video on Website:
http://www.engineering.uiowa.edu/~sw...body_twist.aviEdited by stargate125645 - 5/23/08 at 6:34am