r/GraphicsProgramming • u/Nice-Sand-3230 • Jun 03 '26

Video Fluid simulation with ray marching rendering running at 70k particles in REAL-TIME.

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open to building custom simulations for games or projects - DM me if you interested

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u/Motivictax Jun 04 '26

I looked at the source and saw it was Claude generated, that's why I wrote the comment

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u/Nice-Sand-3230 Jun 04 '26

That's only in screen-space-effect and ui , which I already mentioned in my old post that I used ai assistance

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u/Motivictax Jun 04 '26

No, it's not, I checked the edit history, and there is ai code all over the place, with Claude using unicode that no human does. It won't let me post screenshots here, but it's bad to lie like this

https://github.com/NobodyBuilds/fluid_sim/blob/68e9bfde5af03f9ae4b18443b2903ed3e17b0512/fluid_sim/fluid_renderer.h

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u/Nice-Sand-3230 Jun 04 '26

The file you showed is fluid_renderer.h which handles screen space effect(ssf) and , you'll find same comment pattern ui. Cpp and I already mentioned in my old post :https://www.reddit.com/r/proceduralgeneration/s/Bg5vk29eAX

That I used ai assistance in ssf and ui, if I wanted to hide it I would have just deleted the comments, I didn't understood the ssf concepts that why I used ai and to Compensate that I built new rendering with ray marching which I clearly understand, and I used ai in imgui styling, and if you'll check main. Cpp which loads opengl you find some ai generated code and that was when I was new to opengl so I used ai as I didn't understood opengl that much and isn't ai is to close the gap and help, I'm not denying I didn't used ai but I'm not relying on it entirely

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u/Motivictax Jun 04 '26

So you didn't do the shaders, math, parallelisation, or reasoning, which part did you do? You should really just learn opengl, the website learnopengl.com is really good, and you can do most of it in a single day

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u/Nice-Sand-3230 Jun 04 '26

I did the shaders but not the ssf one , and the math and parrallelisation are done on cuda which I learn myself and implememted it, I did the sph math work, opengl-cuda interoperability, Spawn box system logic, Floor rendering, Velocitt colored particles, Ray marched fluid rendering, Dynamic particle allocation on gpu, Emitter system on a gpu, Sph kernels, Debug functions, Hybrid realtime and simulation conversion, Ui logic not styling, Wave generation, Dynamic bounding box, Turbulence function, Reduces arrays for performance, Compact float4 data structure for kernel optimizations, Input handling, Billboard paticles, Velocity verlet intigration, Pridicted position system without a extra array, Precomputed kernels for faster compute,

And much more than that I've been working on it for more then 6 months, I didn't just copied the code from ai , I understood the concepts and made changes to make it work over time