PhysX in Grasshopper

Here is a quick proof of concept for getting nvidia's PhysX library working in Grasshopper. So far, I've only been able to run a basic simulation with rigid bodies, where a grid of spheres is dropped on to a plane. What's nice about this though is the speed - PhysX uses your GPU to do most of the heavy lifting, so it is very feasible to run simulations with 8-10k rigidbodies. However, there is a massive bottle neck in getting PhysX running in GH due to needing to recreate Rhino/GH geometry at every frame. Usually, physX just submits the objects in the scene directly for rendering, which speeds things up quite a bit. Hopefully there is a solution to this....

Next step, fluids.

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Tags: PhysX, Physics, RigidBody, Simulation

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Comment by Christian Schmidts on February 9, 2013 at 7:37am: also very big like

Comment by David Rutten on February 8, 2013 at 4:05pm: No real solution. If you circumvent Grasshopper then you may be able to get a significant speed increase by tweaking display xforms rather than creating new geometry for every frame, but that will require some tricky coding.