Recreating Noita's Sand Simulation in C and OpenGL | Game Engineering

How does your computer not crash when simulating all the tiny cells? Are you using some sort of optimization? If so which one

Very nice video 👍, subbed

I've read every one of those articles you showed on the screen, and this video helped me actually understand it. Thank you.

EDIT: Please make a series on your open source game library, I'd love to build somethingg similar to this for school reasons.

I also wonder, what is the situation of your isometric game engine, it will release soon ?

This is one of those videos that could last days and I would still be sad when it ended

I've followed your compile instructions to the letter but it wont work. It says "..source*.c" cannot be found, same with render_passes. I figured that it was too deep into the folder tree from the way the path is made, so I moved it one folder up. It still didn't work. I have the latest Visual Studio, and I used the x64 Visual Studio command prompt like asked.

I attempted this a while back. I can't believe I didn't try to travel to each cell along a path to handle velocity. I guess I thought it would be too taxing on my computer to run smoothly but, looking at your results, it seems to work well enough. Great video, I really enjoyed it!

Awesome video. The one weird thing I noticed was you say smoke is like sand but with reversed gravity. Isn't it more like smoke is like water but with reversed gravity?

Dude. Incredible. Freakin the best thing on game dev I've seen in a long time.

Sandspeil is really fun

Great video keep it up!
These are my suggestions: Fez's dimension changing
Braid's time travel

Your particle_t is not 136 bytes, there's also a wasted bytes on padding. It is 160 bytes at best, but most likely it will be 192 bytes depending on a particular platform. But don't do #pragma pack(1) or alignas(1) in C++, because it will kill the performance.

On a loosely related note, it always amuses me when Game Of Life is said to have 4 rules. It's really just 2 rules:
1- living cell survives if next to 2 or 3 alive neighbors.
2- dead cell is revived if next to 3 alive neighbors

Cool video, cellular automata are amazing.
Just a small thing, but giving the sand a preference in which direction it falls when it collides with a sand particle below it gives it an unrealistic uniformity that the player will notice right away.

thanks for the video and the tool john, those were valuable insights!

Dude you are like the first one to call this game engineering (base on : searching in youtube) love your vid , such high quality, please make more !!!

You can reduce considerably the size of the IF statements amount if you put functions inside arrays and just reference the function by its index, for example this python code:

# predefining the functions
def particle_smoke():

pass

def particle_wood():

pass

# distance values stored in this array (python list)

distances = [wood_dist, smoke_dist]

# particle creation functions stored in this array

particles = [particle_wood, particle_smoke]

for i in range(len(distances)):

if distances[i] < min_dist:
min_dist = distances[i]

p = particles[i]()

Is this inspired my powder game at all. I'm not trying to say you copied it. This video actually made we remember that game. Its on dan-bull.jp its the first thing you see if you just look up powder game. They look extremely similar.

Thanks for the video. Very interesting.

RIP John Conway.

I can tell you were inspired by 3blue1brown 😆

Nice work!