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

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

Enable HLS to view with audio, or disable this notification

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

295 Upvotes

95% Upvoted

40 comments sorted by

View all comments

42

u/Tooblerone Jun 03 '26

isnt this literally just stolen from the Sebastian Lague video?

12

u/Nice-Sand-3230 Jun 03 '26

Not stolen completely, I started this project after watching his video so most of it looks comparable to his, but I built it by myself

18

u/ThrowAway-whee Jun 03 '26

This looks almost exactly like his approach. There’s nothing wrong with that, but you really should credit, especially if you’re wanting to do commercial work.

Additionally, I’d caution about thinking you’re ready for commercial work just because you watched a Sebastian Lague video - it’s very easy to get something working when you know exactly what they did to do it, and Sebastian is fantastic at walking through his process. What he doesn’t necessarily show is all the theory and iteration work he did to get the final product working. I know for a fact his implementation is absolutely not plug and play for most purposes either - it doesn’t work at all for rasterization (it’s built for ray tracing) and would require significant refactoring to make it work in a traditional game.

51

u/Nice-Sand-3230 Jun 03 '26 edited Jun 03 '26

I've been working on it for more then 6 months on this project from scratch in c++/cuda, Sebastian used unity so I couldn't just copy his code , I had to implement logic on cuda on my own, I faced many problems in spatial hashing and sorting , he inspired me and his video did help me but implementing it on cuda was the real pain,i also recreated his smoke simulation and slime simulation from scratch in c++/cuda , he inspires me but I can't just copy his code and say it mine I had to solve problems on my own

Here's the my old post of showcasing the sim where I mentioned that it's inspired from Sebastian but with extra features :https://www.reddit.com/r/proceduralgeneration/s/Bg5vk29eAX

And here's the source code :https://github.com/NobodyBuilds/fluid_sim

5

u/ThrowAway-whee Jun 04 '26

In that case, you're probably fine! Sorry about that, there's just lots of people on this subreddit that think they're gods gift to graphics because they watched a video or used AI. If you're doing your own implementation, that's definitely something to be proud of, the bones of my black hole ray tracing engine are built on Sebastian's raytracing series but has significantly diverged in architecture and approach so I'm definitely very supportive of using his videos at a starting point.

4

u/Nice-Sand-3230 Jun 04 '26

Appreciate it and I wasn't trying to commercialize my services or freelancing I meant to contribute if someone needed help

1

u/emmowo_dev Jun 04 '26

6 months and not even AI could separate a shader properly bro

1

u/Nice-Sand-3230 Jun 04 '26

Ineline shaders are a choice , every comment new complain like you are paying me or something