Could PPUs make a "comeback"?

[Freezee]

There used to be a time when we started thinking about PPUs (Physics Processing Unit) when more complex physic was starting to be added in games (like ragdolls and collisions), but nowadays it's handled by the graphics card with Nvidia PhyX technology (which used to be dedicated to a PPU), but could this be a better idea to add it into another card which would be more powerful and useful for complex physics things like water simulation?

When PPUs were released, they quickly became a bad thing to buy because of its price and its uselessness (developers didn't used it because no one used it, and no one bought it because developers didn't used it), but today with all the differents game engines like Unity or Unreal Engine, this could be easily added to games and give them better performances if they use a lot of physics (for example, making collisions between 2 starships in Starmade make the framerate drop because of all the collisions calculations)

 

So what's your opinion on it? Tbh I'm asking it here because it's obvious that 10 years ago no one would give a sh*t about it, but today this could be different because of all the differents ways to use it, and I don't really know if it's worth for big companies to put effort and money in it

[Electronics Wizardy]

Were are moving more and more to a single chip. We won't just add another chip.

 

Also why not use the cpu or cuda/opencl?

[Freezee]

5 minutes ago, Electronics Wizardy said:

Also why not use the cpu or cuda/opencl?

I'm going to have the idea that graphics cards are useful because they are making graphics calculations quicker than the CPU, so why physics calculations would be quicker on a GPU or on a CPU than on a specific PPU ?

[Electronics Wizardy]

38 minutes ago, Freezee said:

I'm going to have the idea that graphics cards are useful because they are making graphics calculations quicker than the CPU, so why physics calculations would be quicker on a GPU or on a CPU than on a specific PPU ?

No really. The ppu were basically cuda/opencl only gpu's. It would also be a pain for laptops. Its never going to be a thing again.