surely there has to be some site that shows the effects in a game that ageia can do that a cpu can't, screenshots to show the difference and benchmarks to show the difference in fps between ppu and no ppu when extra effects are enabled.
yes its a challenge of sorts, i'm not trying to be mean, i've just yet to see any proof that a ppu can do what a cpu can't, or any shots of ingame with effects that look good that kill performance without a ppu.
again, afaik, and prove me wrong, we can have deformable terraine on games without ppu's, that essentially has nothing to do with physics, i mean it does, but a ppu would help calculate exactly how the terraine would deform, the engine and its capability determins if the terraine can be affected at all. its just a lot of effort to program a game where utterly everything is interactable.
in HL2 you can break boxes easily, and there is fairly realistic visual for how the box breaks. the walls can't be broken not because the physics are too complex, but because if one wall can break, they should all be able to be broken, and that means sooooo much more work as every single item in a game needs more work, level design would take years longer because you can't just place a wall in a level, you have to place it, design what bits can be broken, make textures for how it looks broken, design how it will break, what it can be broken with.
