3 ms·
Can I write code in futhark which shares memory with objects being rendered in OpenGL? In other words, can it operate directly on objects being rendered? I'd l
by gnarbarian 10y ago
Can I write code in futhark which shares memory with objects being rendered in OpenGL? In other words, can it operate directly on objects being rendered?
I'd like to be able to write physics simulations that are visualized in 3d without having to copy the points in and out of futharks memory (killing the performance)
- Athas 10y agoNot yet. But you can already write code that shares memory with objects that you also access from hand-written OpenCL code, and since OpenCL can interop with OpenGL, what you are asking for should eventually be possible.
- gnarbarian 10y agoahh yes. I have done something like that before with pyopencl but it was not pretty: https://www.youtube.com/watch?v=lnOmy1ly6M0&list=PLCN-Ml6vUJ-JTiqdvcHd0vZVSXDpw_RcW https://www.youtube.com/watch?v=lnOmy1ly6M0&list=PLCN-Ml6vUJ...
- Athas 10y agoI have exactly that example here: https://github.com/HIPERFIT/futhark-benchmarks/tree/master/accelerate/nbody https://github.com/HIPERFIT/futhark-benchmarks/tree/master/a... All simulation and rendering is done in Futhark, with Python+Pygame for gluing things together. All the particle information stays on the GPU at all times. The only thing being copied back to the CPU is the rendered bitmap, which is then immediately moved back with a Pygame blit operation...