We’re so impressed with the creative things builders are bringing to life with Gemini 4 Carbon. @GlitterPixely coded a meadow of 52,000 wildflowers and grass blades from scratch in CUDA and C++ with Carbon, synthesizing the wind to match every gust 🧵

Nov 11, 2026 · 1:16 AM UTC

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52k blades is the easy part for a GPU. The wind is what's hard. Most grass shaders just scroll a noise texture, and you can spot the loop in seconds. Did Carbon model real gust fronts rolling across the meadow, or is it layered noise underneath? 👀
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52k flowers, GPU fans finally employed
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A 52,000-blade meadow in CUDA and C++ is a fun flex, but it's also a reminder that 'AI wrote it' still sits on very old, very serious systems programming. Does this still need a human to babysit the kernels?
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When Carbon for Pro users? – at Horoměřice, Česká republika
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52k grass blades in raw cuda. drop the prompt
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No game engine or 3D library either, and the builder synthesized the wind sound in C++ so it follows the same gusts.
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Cool, but if you're not going to let Pro subscribers use Carbon, at least release Flash 4 Hydrogen for the rest of the paying customers.
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very impressive!
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Might be a hot take but I've had way more issues with Carbon High than I did with Argon.
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carbon touching grass so the rest of us don't have to
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How do I become part of this early access group? I'd love to build with Gemini models.
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这种演示很会传播，但和「连续干完一个项目」不是一回事。花海能一眼看懂，长任务只能看返工次数和账单。 看 demo 的时候，你会不会高估这种模型的日常编码能力？
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Every single blade in CUDA
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thanks Google! my posts about gemini 4 got over 400K views combined this week, and somehow I'm still expected to spend $200 of my own money to keep experimenting with and promoting your model I've spent a week reaching out to multiple Google employees just to ask if there's any credit program for independent builders. not a single response
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The wind is what sells it. 52,000 blades standing still would just look like a texture, moving with every gust it actually reads as a meadow.
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Waw🤗💓
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How many iterations separated the first working render from this meadow? For a studio pricing a client demo, the time spent refining motion and lighting matters as much as the time to generate the first version.
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超赞
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Coding the wind to match every gust is the flex here.
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There’s something lovely about putting this much engineering into wildflowers 🩷
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so carbon is around fable 5.2 level?
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This is where AI gets truly exciting: turning imagination into something that feels alive, down to every blade of grass and every gust of wind.
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very impressive!
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That's quite impressive. I hope it replicates when I try it on my end.
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Ok wow
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Quá trình phát triển với Gemini 4 Carbon thật đáng kinh ngạc.
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Wildflowers look amazing, love the detail
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太令人惊叹了
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52k blades from scratch in cuda is the demo. matching the wind on every gust is the part i'd actually open.
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Did you give us a 1M context window just so we can touch grass in CUDA instead of going outside?
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