Position Based Fluids Technology Could Offer Increased Realism In Gaming

/ 3 years ago


There have been countless advancements in terms of computer graphics performance ever since they were first created, even more so in recent years as the power of GPU’s gets to incredible heights and in many cases the graphics cards which power today’s games are immensely overpowered to the task in hand, so what we need is the software that can make use of that power and while gaming graphics may look impressive now, they still have a fair way to go before they reach a level of realism that is indistinguishable from the real thing.

An all new fluid simulation engine looks set to take things to the next level and “Position Based Fluids” or PBD for short, certainly makes a noticeable difference in this area, pushing particles of water around custom shape objects, flowing naturally and responding to the rest of the water dynamically and while it isn’t perfect, it’s more realistic than you’ve likely seen in any game to day, as for the most part what you see in games is a scripted layer of animations, not a real time physics calculation.

“In fluid simulation, enforcing incompressibility is crucial for realism; it is also computationally expensive. (…) By formulating and solving a set of positional constraints that enforce constant density, our method allows similar incompressibility and convergence to modern smoothed particle hydrodynamic (SPH) solvers, but inherits the stability of the geometric, position based dynamics method, allowing large time steps suitable for real-time applications,” Said Miles Macklin and Matthias Müller-Fischer of Nvidia.

What do you think of this technology and what games would you like to see using this technology the most?


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  • I think this would offer fantastic opportunities for most sandbox games (to the dismay of Ben Croshaw, of course) but particularily so to a (hopefully!) next-gen Black and White game. The possibilities this could entail would be amazing!

    • Nickel Dare

      Still, just look on the lighthouse example..
      15FPS with a GTX 680…
      I say If there won’t be a huge step between 6xx and 7xx, we won’t see this in any game before atleast the 9xx versions
      I mean, it eats away the whole GPU without things like Textures, Dynamic Lightning and other models…

      On a Side note..
      I hope that someone, someday will Inject this into BioShock Infinite… Would love to see the Intro Lighthouse with such Fluid’s… or just imagine the whole BioShock franchise…