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Mykhailo Moroz

@Michael_Moroz_ • 12,939 subscribers

Love physics simulations and rendering algorithms Lead Research Engineer at @ZibraAI https://t.co/awt86lQb5a Discord: misha.m.

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So I've implemented hash grid based fluid simulation in VRChat - its absolutely incredible. Because its hash based its literally boundless, so fluid can occupy the entire world. Currently I only have the "Mentos" particle rendering, but I plan on trying to make isosurface work

So I've implemented hash grid based fluid simulation in VRChat - its absolutely incredible. Because its hash based its literally boundless, so fluid can occupy the entire world. Currently I only have the "Mentos" particle rendering, but I plan on trying to make isosurface work

351,090 Aufrufe • vor 8 Tagen

So I'm considering releasing my VRChat fluid simulation on Booth. I've ported it into Udon so it is faster and is easier to use. I used the Radix Sort from my 3DGS plugin, allowing me to do a true SPH sim without approximations. I'd love to head what you'd want to do with it 😄

So I'm considering releasing my VRChat fluid simulation on Booth. I've ported it into Udon so it is faster and is easier to use. I used the Radix Sort from my 3DGS plugin, allowing me to do a true SPH sim without approximations. I'd love to head what you'd want to do with it 😄

213,233 Aufrufe • vor 15 Tagen

People having fun in my VRChat fluid simulation test world 🙃 Improving the performance bit by bit. Also thank god it works on AMD GPU's from the beginning somehow (that never happened before 🤨)

People having fun in my VRChat fluid simulation test world 🙃 Improving the performance bit by bit. Also thank god it works on AMD GPU's from the beginning somehow (that never happened before 🤨)

133,536 Aufrufe • vor 13 Tagen

Okay I figured out a pretty decent and fast way to get nice looking isosurfaces for sparse liquids in VRChat. But its applicable in general. I suspect I could make it even faster if I had access to compute shaders. Oh well, its already impressive as is

Okay I figured out a pretty decent and fast way to get nice looking isosurfaces for sparse liquids in VRChat. But its applicable in general. I suspect I could make it even faster if I had access to compute shaders. Oh well, its already impressive as is

21,654 Aufrufe • vor 3 Tagen

Using GPT-6 Astra I was able to quickly protorype a sparse grid allocator fluid simulation for VRChat using my specified architecture, but honestly as cool as it is its absolutely overkill for VRChat. Isosurface ray tracing could be done here, but its too complex to work with.

Using GPT-6 Astra I was able to quickly protorype a sparse grid allocator fluid simulation for VRChat using my specified architecture, but honestly as cool as it is its absolutely overkill for VRChat. Isosurface ray tracing could be done here, but its too complex to work with.

40,473 Aufrufe • vor 11 Tagen

I finally released the LOD version of VRChat Gaussian splatting that supports 100M scale splats! Compared to v3 it has a huge changelist!

I finally released the LOD version of VRChat Gaussian splatting that supports 100M scale splats! Compared to v3 it has a huge changelist!

88,057 Aufrufe • vor 2 Monaten

Made a gaussian splat of a norwegian fjord from a youtube video using my tool slang-splat ( Really love how these places look. Turned out better than I expected from a yt vid. Photometric compensation helped a lot with floaters.

Made a gaussian splat of a norwegian fjord from a youtube video using my tool slang-splat ( Really love how these places look. Turned out better than I expected from a yt vid. Photometric compensation helped a lot with floaters.

81,245 Aufrufe • vor 3 Monaten

Stress testing the simulation with 4M particles and a 384x384x96 grid. Most of the cost right now goes into the rendering prep, SDF gen and isosurface ray tracing (not ray marching, tracing). Could be substantially optimized if properly skipping unused parts of the grid.

Stress testing the simulation with 4M particles and a 384x384x96 grid. Most of the cost right now goes into the rendering prep, SDF gen and isosurface ray tracing (not ray marching, tracing). Could be substantially optimized if properly skipping unused parts of the grid.

14,762 Aufrufe • vor 15 Tagen

I improved the VRChat cloth simulation, now it is actually rendered as a mesh and finally can handle self collision for proper folds. Also I moved the simulation to CRTs so it kinda works for non friends(the simulation is on the avatar!). But the collision still requires cameras.

363,768 Aufrufe • vor 3 Jahren

I've been implementing multi-object combined LODs (actual LODs this time) for gaussian splats. It is insanely cool, due to the way I select LOD's I *always* render the same amount of splats no matter how many splats are in the scene. This scene has 108M total combined splats.

I've been implementing multi-object combined LODs (actual LODs this time) for gaussian splats. It is insanely cool, due to the way I select LOD's I always render the same amount of splats no matter how many splats are in the scene. This scene has 108M total combined splats.

33,620 Aufrufe • vor 3 Monaten

Implemented LOD splat instancings. Its looks like a pretty cool tool to procedurally combine things out of splats. I tried making a cloud scape out of a bunch of Disney Clouds.

Implemented LOD splat instancings. Its looks like a pretty cool tool to procedurally combine things out of splats. I tried making a cloud scape out of a bunch of Disney Clouds.

24,591 Aufrufe • vor 3 Monaten

Now that the latest Chrome version has WebGPU support I guess I can finally talk about this. A year ago David A Roberts and Cornus Ammonis were developing a compute shader based Shadertoy alternative called I already had a lot of fun making some toy projects 😳

Now that the latest Chrome version has WebGPU support I guess I can finally talk about this. A year ago David A Roberts and Cornus Ammonis were developing a compute shader based Shadertoy alternative called I already had a lot of fun making some toy projects 😳

125,824 Aufrufe • vor 3 Jahren

Its really fun exploring a whole city in VR in gaussian splats😍 I've uploaded 80M splats this time, exactly at the world size limit in VRChat. My recent performance improvements also made it quite a bit faster than before.

Its really fun exploring a whole city in VR in gaussian splats😍 I've uploaded 80M splats this time, exactly at the world size limit in VRChat. My recent performance improvements also made it quite a bit faster than before.

18,117 Aufrufe • vor 3 Monaten

So everyone was showing off a bunch of sims made with Claude Fable. I thought I'd try too. A year ago I was nerdsniped figuring out how to find a projection function from a point to the screen around a black hole. Couldnt do it before, but Fable just oneshotted it😅

So everyone was showing off a bunch of sims made with Claude Fable. I thought I'd try too. A year ago I was nerdsniped figuring out how to find a projection function from a point to the screen around a black hole. Couldnt do it before, but Fable just oneshotted it😅

17,352 Aufrufe • vor 3 Monaten

I've implemented a Gaussian Splatting renderer in VRChat! It was tricky, but turned out to be feasible. I've also made a public gallery with 12 splats you can check out: By the way the renderer is open source!

I've implemented a Gaussian Splatting renderer in VRChat! It was tricky, but turned out to be feasible. I've also made a public gallery with 12 splats you can check out: By the way the renderer is open source!

46,029 Aufrufe • vor 1 Jahr

Decided to go back to making Shadertoy fluid sims for for a bit. This time I improved my particle clustering cellular automaton SPH fluid sim to support multiple species particle merging and splitting. Also some fine tuning of the physics.

Decided to go back to making Shadertoy fluid sims for for a bit. This time I improved my particle clustering cellular automaton SPH fluid sim to support multiple species particle merging and splitting. Also some fine tuning of the physics.

25,442 Aufrufe • vor 9 Monaten

Pretty neat place as well, made a splat of it too

Pretty neat place as well, made a splat of it too

10,241 Aufrufe • vor 3 Monaten

Implemented anisotropic kernels in my VRChat fluid sim ( Now to figure out how to get high quality normals out of this... (no screen space, thanks) Also still need to make tighter billboard quads for the ellipsoids, rn pretty expensive to render

Implemented anisotropic kernels in my VRChat fluid sim ( Now to figure out how to get high quality normals out of this... (no screen space, thanks) Also still need to make tighter billboard quads for the ellipsoids, rn pretty expensive to render

53,711 Aufrufe • vor 2 Jahren

I'm slowly porting my approximate grid SPH simulation to VRChat. It did require few improvements to be stable enough, now its a hybrid neighbor index/particle average grid. Still need to implement d4rkpl4y3r's mip counting sorting method for improved performance.

I'm slowly porting my approximate grid SPH simulation to VRChat. It did require few improvements to be stable enough, now its a hybrid neighbor index/particle average grid. Still need to implement d4rkpl4y3r's mip counting sorting method for improved performance.

27,824 Aufrufe • vor 1 Jahr