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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.

Mykhailo Moroz

12,397 subscribers

27,812 次观看 • 1 年前 •via X (Twitter)

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Mykhailo Moroz 的头像

Mykhailo Moroz1 年前

The grid now stores the minmax id's of the particles in this cell, its done by rasterizing points with vec2(id, N-1-id) with min blending (to get min and max). If a particle didn't get into this grid, its afterwards additively rasterized into another average particle grid.

Mykhailo Moroz 的头像

Mykhailo Moroz1 年前

But other than that its very similar to my old VRChat fluid sim, except now I can have proper separate particles with their own data that isn't lost (like color in the video) (also I no longer use Custom Render Targets (they are cursed))

Mykhailo Moroz 的头像

Mykhailo Moroz1 年前

cc @shr_id P.S. the (arguably cursed) mip map prefix sum method

Ivan Bozhenko 的头像

Ivan Bozhenko1 年前

@d4rkpl4y3r_vr Дуже круто , кожного разу дивуюсь від того що ви робите

Nuance 的头像

Nuance1 年前

@d4rkpl4y3r_vr That acronym is taken Don't google it

CodeRabbit 的头像

CodeRabbit1 年前

AI-first pull request reviewer with context-aware feedback, line-by-line code suggestions, and real-time chat.

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I've compiled some performance tips gleaned from working on my 1 million GPU AI steering agents project. I want to see Twitter compression destroy this video. 🚀 GPGPU: N-Body - O(n^2) - simulations are easily processed in parallel. GPUs are really good at parallel processing = 🫶. 🌐 Spatial hashing: Accelerate local group search via sorting into an unbounded grid (int3 cell -> 1D hash/array index). ⏩ Asynchronous compute: Once the data is on the GPU, both the simulation and rendering are handled there. There's no need to synchronize the physics step to visual update frames with decoupled rendering (see below). 🔄 Batched/staggered update cycle: Spread updates over multiple dispatches/frames. 🎭 Decoupled simulation-rendering: Simulation step can be much lower than visual updates. Use interpolation and/or simple velocity integration. In my case I'm passing the smoothed-out position and velocity of the boid 'particles' to VFX Graph for rendering. With these techniques you can get 100,000 boids even mobile/smartphones. 📱 Please don't mind the emojis, I like to flavour and stylize my text. #gamedev #indiedev

I've compiled some performance tips gleaned from working on my 1 million GPU AI steering agents project. I want to see Twitter compression destroy this video. 🚀 GPGPU: N-Body - O(n^2) - simulations are easily processed in parallel. GPUs are really good at parallel processing = 🫶. 🌐 Spatial hashing: Accelerate local group search via sorting into an unbounded grid (int3 cell -> 1D hash/array index). ⏩ Asynchronous compute: Once the data is on the GPU, both the simulation and rendering are handled there. There's no need to synchronize the physics step to visual update frames with decoupled rendering (see below). 🔄 Batched/staggered update cycle: Spread updates over multiple dispatches/frames. 🎭 Decoupled simulation-rendering: Simulation step can be much lower than visual updates. Use interpolation and/or simple velocity integration. In my case I'm passing the smoothed-out position and velocity of the boid 'particles' to VFX Graph for rendering. With these techniques you can get 100,000 boids even mobile/smartphones. 📱 Please don't mind the emojis, I like to flavour and stylize my text. #gamedev #indiedev

Mirza Beig

13,274 次观看 • 2 年前

Rep. Roy on One Big Beautiful Bill: “In my view, we still need to get the bill right and right now, I don't think the bill is right. I didn't come to Washington to make deficits worse. As much as I want the tax cuts to be extended, and I do. As much as that is important for the average hard working family, it is. As much as I think that we've made some improvements on Medicaid, that we've done some good on the inflation Reduction Act subsidies, we're still far away from where we need to be.”

Rep. Roy on One Big Beautiful Bill: “In my view, we still need to get the bill right and right now, I don't think the bill is right. I didn't come to Washington to make deficits worse. As much as I want the tax cuts to be extended, and I do. As much as that is important for the average hard working family, it is. As much as I think that we've made some improvements on Medicaid, that we've done some good on the inflation Reduction Act subsidies, we're still far away from where we need to be.”

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🔌🗣️SPEAK OUT TO CUT THE “PUBLIC BENEFITS” TAX: This Thurs. Mar. 6, there will be a public hearing to discuss my energy proposal, SB647, which will eliminate “public benefits” charges which inflate our energy bills 15-20%. The six point plan includes five other reforms to reduce long term costs for CT consumers and strengthen our grid. Your voice and support matters. We need action to reduce costs—and we need it now.

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JADE discusses debuting with Angel Of My Dreams and says she’d love for the song to have a “second wind” of success: “Listen, it should have been, but it didn’t need to be a #1 single, because it did its job. It opened so many doors for me. Angel Of My Dreams was that bitch. I’d love for – you know when you see on TikTok, these songs snowball again years later. Or like Chappell with Pink Pony Club – that was out for time and then it snowballed again. My dream now for Angel is to have that second wind. It could be now; it could be a Kate Bush moment in, like, 10-20 years where it has its renaissance.”

JADE tea room ☕️

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I'm shutting down BlitzReels. For every $1 earned, I spend around $4. I can't keep up with it. It is too expansive to maintain. The fact that I'm living paycheck to paycheck without a stable job doesn't help. For it to work realistically, I either need to raise my prices or lower the usage at the current price. But I don't think the product is good enough to warrant that. What killed my SaaS isn't competitors. It is lack of marketing, a product way too complicated for users with an unclear ICP. It is lack of runway to explore more ideas and marketing angles. For those curious here was last month bill : - $800 AWS Lambda & other services bill - $500 Trigger bill - $100 Vercel bill Thankfully Silvestro hired me for Affonso, which means I can still feed my family for a month.

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25,027 次观看 • 20 天前

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alexey

14,163 次观看 • 1 个月前

What's your goal for your promotion activities in the future? 🦌: I'm just.. i just want to do happy promotion activities like this 🦌: I don't really have any more wishes 🦌: What are you saying? 🦌: Ahh, album? concert? 🦌: I'm happy just the way I am, but EVERs do have a few things they wishes. 🦌: But I'm sorry, I'm going to do it all, so please no need to be worry. I'm going to do it all, so don't worry.. And I'm already so happy right now, because I can see it all right now with my own eyes, seeing all of my fans here, coming to hear me sing live... that's such a happy opportunity for me

What's your goal for your promotion activities in the future? 🦌: I'm just.. i just want to do happy promotion activities like this 🦌: I don't really have any more wishes 🦌: What are you saying? 🦌: Ahh, album? concert? 🦌: I'm happy just the way I am, but EVERs do have a few things they wishes. 🦌: But I'm sorry, I'm going to do it all, so please no need to be worry. I'm going to do it all, so don't worry.. And I'm already so happy right now, because I can see it all right now with my own eyes, seeing all of my fans here, coming to hear me sing live... that's such a happy opportunity for me

Fir #RideorDie

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Kevin O'Leary aka Mr. Wonderful

81,346 次观看 • 1 年前

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Elon Musk just told you exactly how the AI race ends. Not with a better chip. Not with a smarter model. With the Sun. Musk: “So to do that, we need to harness the power of the Sun.” That is not a metaphor. It is a thermodynamic blueprint for the next thousand years. The market thinks this race ends at a data center. It does not. Every watt generated on this planet is a rounding error compared to what the Sun outputs in a single second. You cannot run superintelligence on a grid that struggles to keep the lights on. The bottleneck of this decade is not silicon. It is not software. It is raw energy. And Earth does not have enough. Musk: “We want to be a civilization that expands to the galaxy with spaceships that anyone can go anywhere they want at any time.” That is not aspiration. That is an engineering specification. A single-planet species is a dead species on a long enough timeline. Every civilization that stopped expanding did not plateau. It collapsed. The organizations fighting for control of Earth’s power grid are fighting over a grid that is already obsolete. The real play is orbital. Space-based solar. Zero atmospheric loss. Direct capture from the source. When you decouple your compute engine from terrestrial physics, the ceiling disappears. The regulatory class wants to slow the grid down. The builders want to abandon the grid entirely. That is the fracture point of this century. The United States either captures the orbital board or watches someone else do it. There is no middle position. Musk is not building rockets. He is engineering the escape velocity for an entire species. While Washington debates permits, he is calculating how to swallow the output of a star. The Sun puts out more energy in one second than humanity has consumed in its entire history. Whoever captures even a fraction of that first does not win the AI race. They win everything.

Dustin

18,203 次观看 • 5 个月前

Here's a sneaky peak the next release of the GB Renewables Map, or should I say the GB Not Just a Renewables Map… That's right, all types of power assets are coming to the map! Plus a whole bunch of other improvements. It's been an absolutely massive piece of work that's sucked up most of my evenings and free time, but I'm very nearly there now. And if you didn't already know, yup, this a hobby project I do for fun outside of my day job… because I'm weird like that. This video shows how things currently look with all the power assets visible, though you might also notice a few other additions if you look closely… It still has some rough edges so I'm in two minds whether to just put this live and work on fixes and improvements as I go. This is a huge change to the code and to the whole concept for the map, so I'm not entirely sure I'll ever have it 100% nailed down. I'm also cautious letting perfect be the enemy of good enough. I don't think there's anything awfully broken though, I've tested it so much it's probably more robust than the current version of the map! Though there will inevitably be things that I've overlooked. Even in its current state it's already proven incredibly valuable for me to learn more about what's happening during periods of constraint on the grid, like seeing which assets are being turned up to balance things out. What do you think? Shall I put this live and we can find the quirks together?

Here's a sneaky peak the next release of the GB Renewables Map, or should I say the GB Not Just a Renewables Map… That's right, all types of power assets are coming to the map! Plus a whole bunch of other improvements. It's been an absolutely massive piece of work that's sucked up most of my evenings and free time, but I'm very nearly there now. And if you didn't already know, yup, this a hobby project I do for fun outside of my day job… because I'm weird like that. This video shows how things currently look with all the power assets visible, though you might also notice a few other additions if you look closely… It still has some rough edges so I'm in two minds whether to just put this live and work on fixes and improvements as I go. This is a huge change to the code and to the whole concept for the map, so I'm not entirely sure I'll ever have it 100% nailed down. I'm also cautious letting perfect be the enemy of good enough. I don't think there's anything awfully broken though, I've tested it so much it's probably more robust than the current version of the map! Though there will inevitably be things that I've overlooked. Even in its current state it's already proven incredibly valuable for me to learn more about what's happening during periods of constraint on the grid, like seeing which assets are being turned up to balance things out. What do you think? Shall I put this live and we can find the quirks together?

Robin Hawkes

19,444 次观看 • 6 个月前

🚨SHARE FAR & WIDE PLEASE🚨 Excellent research by Noreen O' Shea once again. This is all her work🇮🇪 Palantir is what the world should be focusing on right now. This is where the control will be. Rivada isn’t Irish. It’s a US satellite firm building a military network. Ireland gave it the land, the power, and 21% of our grid. These satellites are not built YET. but, they are being developed. The clock is ticking. Terran orbital is building them. Developing means the need OUR grid, OUR planning permission and OUR silence RIGHT NOW. WE CANNOT REMAIN SILENT ON THIS. WE NEED TO BE VERY LOUD ABOUT OUR OBJECTION. This invasion is currently in paperwork stage. We still have the chance to stop it folks. If we organise and utilise our voices. Below is the documents that I sourced the information from. Have a read for yourselves. Don't take my word for this.

🚨SHARE FAR & WIDE PLEASE🚨 Excellent research by Noreen O' Shea once again. This is all her work🇮🇪 Palantir is what the world should be focusing on right now. This is where the control will be. Rivada isn’t Irish. It’s a US satellite firm building a military network. Ireland gave it the land, the power, and 21% of our grid. These satellites are not built YET. but, they are being developed. The clock is ticking. Terran orbital is building them. Developing means the need OUR grid, OUR planning permission and OUR silence RIGHT NOW. WE CANNOT REMAIN SILENT ON THIS. WE NEED TO BE VERY LOUD ABOUT OUR OBJECTION. This invasion is currently in paperwork stage. We still have the chance to stop it folks. If we organise and utilise our voices. Below is the documents that I sourced the information from. Have a read for yourselves. Don't take my word for this.

Fergus (Ferg) Power

56,435 次观看 • 3 个月前

Happy Final Space Friday So I'm recovering from a bit of food poisoning but I couldn't miss an update. Still waiting on those two pages and fixing a few issues mainly with text bubbles that are too close for comfort on the margins. My goal is still for next week to get the midnight edition print file to the printer to start on samples. It looks AWESOME! I'm so happy with how this edition looks. The video I attached is going to be the score to PREVIOUSLY ONS section (by Andrew Goodwin and Jake Sidwell) right now it's 9 minutes long and I actually think it may need to be longer for those pages but it captures the show so well and it feels like a great opener to the novel. Enjoy and get transported back to Seasons 1-3. -Olan PRE-ORDER:

Happy Final Space Friday So I'm recovering from a bit of food poisoning but I couldn't miss an update. Still waiting on those two pages and fixing a few issues mainly with text bubbles that are too close for comfort on the margins. My goal is still for next week to get the midnight edition print file to the printer to start on samples. It looks AWESOME! I'm so happy with how this edition looks. The video I attached is going to be the score to PREVIOUSLY ONS section (by Andrew Goodwin and Jake Sidwell) right now it's 9 minutes long and I actually think it may need to be longer for those pages but it captures the show so well and it feels like a great opener to the novel. Enjoy and get transported back to Seasons 1-3. -Olan PRE-ORDER:

Final Space

25,049 次观看 • 1 年前

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Need a bit of community input: We’re currently working on the melee system for PMC. Internally, we’re debating between a few options: Left click lets you perform a 3-hit combo if you spam it. Right now, if you attack from a narrow angle behind an enemy, you perform a backstab that one-shots them (similar to Dark Souls). However, we’re wondering if it might be better to replace that with a heavy attack that you can charge up using right click instead. Alternatively, we could implement both, but that would require more budget—you know how it goes. Note: Animations are still WIP, and FX haven’t been implemented yet. Context: This is also important for PvE balance.

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26,509 次观看 • 10 个月前

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140,344 次观看 • 2 个月前