gWater 2D

[sick quail]

Now that's interesting.

It makes me wonder how optimized it could be made

@brazen mica did some performance benchmarking around particles using multiple tables for each particle and referencing them by a common index across those tables and the results were pretty noteworthy

I wonder if that same technique, and others, could be used to make this run faster

At this timescale, any speed-up could potentially make a large difference in the total processing time

Also, consider using IVideoWriter to more directly output the rendered frames

[brazen mica]

https://gist.github.com/ZehMatt/d8b2e06db56a6e396dc5da92b7cc82c2 here is an updated version that packs the 3 components into same table

[somber onyx]

in the video I followed along with, each particle is tracked in a grid the size of the particles "smoothing radius" and only neighboring particles in a 3x3 grid around it are tested

if that makes sense

idk if that's similar to the optimization you're interested in. I implemented it already but I think Lua is just slow compared to C#

https://youtu.be/rSKMYc1CQHE

this is the video I followed along with, the math goes over my head

[somber onyx]

I'm looking at this now, interesting... I wonder if it could help

[somber onyx]

I will say, I didn't implement this optimization exactly how he did it. I opted to use nested tables for ease of coding it in but I wonder if that's killing performance

[sick quail]

Nested tables are bad for performance

[somber onyx]

ok, a major part of the performance loss was because I forgot to implement the grid optimization when calculating the density 🤦

[somber onyx]

but i reckon moving away from nested tables will help too, along with this

[brazen mica]

I gave up trying to do complex simulations in gmod, can't also use multithreading so that takes a good chunk away of what could be possible

[somber onyx]

im only doing this for the experience, I want to move away from gmod but so far it's the only thing I know well

I don't want to have to familiarize myself with an engine or new language to try this stuff

[brazen mica]

i get that, however you will eventually realize the limitations 😛

and yeah gmod is a good playing field to try stuff

[somber onyx]

#waywo-old message

[brazen mica]

neat, altho I thought its 3d 😦

i tried this in 3d but its vastly more complicated and much harder to do

[sick quail]

Well that's cool

Can you make the particles impart force on the cube?

It would be cool to have them slosh around and move the cube like liquids do in containers