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2019-11-08Update lattice multiple times per frameAdrian Kummerlaender
Controlled by `--lupf` _Lattice updates per frame_ MLUPS are now calculated and displayed. While performance is still bad compared to a optimized GPU implementation (such as [1] or [2]) this improves the situation. [1]: https://tree.kummerlaender.eu/projects/symlbm_playground/ [2]: https://code.kummerlaender.eu/boltzgen/about/
2019-02-25Add LUPS reporting and fix glaring oversightAdrian Kummerlaender
The GLFW window rendering loop used to dispatch the compute shaders was restricted to 60 FPS. I did not notice this because I never actually measured the computed lattice updates per seconds in addition to trying to push the GPU to its limits. Turns out the lattice sizes I commonly use can be updated 500 times per second comfortably… Now this looks more like the performance gains promised by GPU computation.
2019-02-22Tidy up wall drawing and geometry initializationAdrian Kummerlaender
2019-02-22Improvise interactive wall drawingAdrian Kummerlaender
Internal wall cells need to be disabled to prevent delayed propagation of the reflected populations. This is just quickly thrown together - both the visual drawing and the backend's material handling remain to be improved.
2018-12-18Hacky mouse-based fluid interactionAdrian Kummerlaender
2018-12-17Keep track of window size in its wrapper classAdrian Kummerlaender
2018-12-15Hacky D2Q9 BGK LBM on GPU using GLSL compute shadersAdrian Kummerlaender
Improvised on top of computicles's scaffolding. Works in a world where _works_ is defined as "displays stuff on screen that invokes thoughts of fluid movement".