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Liquid Layers

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Re: Liquid Layers

#21

Post by TeMPOraL »

Nzen wrote: post #3

tl;dr this is a liquid simulation toy. This starts with four colors of different densities (so they self-organize into layers). Clicking allows scooping up a ball of the liquid. I consider this pretty to watch, like a laval lamp that I can also throw globs of.

You also have a settings UI, where you can change (among many other things) what clicking does. I find it most interesting to switch to "repel" - the repulsion forcefield turns to be an universal tool for mixing and separating the different liquids, depending on how fast and precisely you operate it. Fascinating.

Re: Liquid Layers

#22

Post by kotsoft »

sBqQu3U0wH wrote: post #14

Cool, the performance is significantly better than the previous time. Or is it a different kind of simulation?

This is still the same kind of simulation, based on the Particle-based Viscoelastic Fluid Simulation paper. I updated it to use Wasm SIMD more fully with the help of Clang Vector Extensions, Compiler Explorer and Wasm Analyzer. Compiler explorer to play around with patterns and Wasm Analyzer to double check the final compilation.

Re: Liquid Layers

#23

Post by kotsoft »

TeMPOraL wrote: post #21
Nzen wrote: post #3

tl;dr this is a liquid simulation toy. This starts with four colors of different densities (so they self-organize into layers). Clicking allows scooping up a ball of the liquid. I consider this pretty to watch, like a laval lamp that I can also throw globs of.

You also have a settings UI, where you can change (among many other things) what clicking does. I find it most interesting to switch to "repel" - the repulsion forcefield turns to be an universal tool for mixing and separating the different liquids, depending on how fast and precisely you operate it. Fascinating.

With keyboard there are also the shortcuts: 1-4 to emit the different materials a/r to attract repel from mouse x/c to rotate a bit

Re: Liquid Layers

#26

Post by eigenvalue »

kotsoft wrote: post #22
sBqQu3U0wH wrote: post #14

Cool, the performance is significantly better than the previous time. Or is it a different kind of simulation?

This is still the same kind of simulation, based on the Particle-based Viscoelastic Fluid Simulation paper. I updated it to use Wasm SIMD more fully with the help of Clang Vector Extensions, Compiler Explorer and Wasm Analyzer. Compiler explorer to play around with patterns and Wasm Analyzer to double check the final compilation.

Really awesome work. The WASM lets you show this off to a massively larger audience than a regular binary. I'd encourage you to make your Voxel project also using WASM, then you can easily turn it into a mobile/tablet game.

Re: Liquid Layers

#27

Post by vanderZwan »

Wasn't this shared a week/few weeks ago? Not that I mind it being posted again, just that if it was already posted it might be worth linking the old thread, in case there was some interesting discussion there.

Re: Liquid Layers

#28

Post by kotsoft »

vanderZwan wrote: post #27

Wasn't this shared a week/few weeks ago? Not that I mind it being posted again, just that if it was already posted it might be worth linking the old thread, in case there was some interesting discussion there.

Yes, the previous one is: https://news.ycombinator.com/item?id=40429878 There are some new features since then and some major speed improvements from using SIMD. I do still see complaints about the compressibility so I still need to work on some improvements for that. (dev)

Re: Liquid Layers

#29

Post by vanderZwan »

kotsoft wrote: post #28
vanderZwan wrote: post #27

Wasn't this shared a week/few weeks ago? Not that I mind it being posted again, just that if it was already posted it might be worth linking the old thread, in case there was some interesting discussion there.

Yes, the previous one is: https://news.ycombinator.com/item?id=40429878 There are some new features since then and some major speed improvements from using SIMD. I do still see complaints about the compressibility so I still need to work on some improvements for that. (dev)

Thank you for digging up the link! And the bonus "release notes" ;)

Re: Liquid Layers

#30

Post by kotsoft »

eigenvalue wrote: post #26
kotsoft wrote: post #22

Earlier quoted context omitted.

This is still the same kind of simulation, based on the Particle-based Viscoelastic Fluid Simulation paper. I updated it to use Wasm SIMD more fully with the help of Clang Vector Extensions, Compiler Explorer and Wasm Analyzer. Compiler explorer to play around with patterns and Wasm Analyzer to double check the final compilation.

Really awesome work. The WASM lets you show this off to a massively larger audience than a regular binary. I'd encourage you to make your Voxel project also using WASM, then you can easily turn it into a mobile/tablet game.

Thanks! I am definitely working on bringing more to the WASM world. I'd begun experimenting with 3D and multithreading and then last week decided to circle back to the 2d demo and polish it up a bit more.
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