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handmade.network»Forums»Work-in-Progress»Fluid Sandbox - a 3d fluid and rigidbody simulation
151 posts / 1 project

I am finalspace and do programming since more than 25 years, started on C64 and got serious with borland delphi. Nowadays i use C/C++ only.

Fluid Sandbox - a 3d fluid and rigidbody simulation
3 months, 1 week ago Edited by Finalspace on April 21, 2021, 2:01 p.m.
Hi there,

I wrote in 2011 an application called (Fluid Sandbox 1.7) that simulates fluids and rigid bodies using the PhysX SDK. So it's not a "handmade" project by definition, but it was my very first attempt to create something which uses physics. At that time I had no idea what physics engines are, nor how to use them, nor how SPH works. It took me roughly 2-3 months to learn/figure it out and complete it. The project was very popular and got published in some magazines and some news articles.

Now in 2021 I revised it, cleaned up the source code, upgraded it to the latest PhysX SDK, improved it a lot, and replaced all other third-party libraries with either my own or single-header-file libraries. Also, the project is now open-source ;)

If you want you can get the binary release here (https://github.com/f1nalspace/fluidsandbox/releases) and play around with it on your system. It may require the Visual Studio C++ Runtime or something... (PhysX works only with CRT)

Future plans:
I want to rewrite the entire rendering pipeline with support for OpenGL 4.x and Vulkan.
Also, I may replace PhysX with NVIDIA Flex. Unfortunately, there is no other physics engine out there that simulates real-time fluids and rigid bodies. Writing it myself is out-of-question because I have no time to write a 3D physics engine and a particle-based fluid simulation - even though I know the math now.

If you are interested you can look at my crappy source code too:
https://github.com/f1nalspace/fluidsandbox

Screenshot:


I haven't upgraded the video yet, but more or less it looks and feels the same:


Have phun,
Final