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Show HN: A Real-Time 4D Fractal Explorer in the Browser Using WebGPU

bryan0 Thursday, December 11, 2025

Hi HN, I've always been interested in fractals, especially the Mandelbrot and Julia sets. A few years ago I created a 2d viewer of this inherently 4d space. But the other day I decided to ask Claude and GPT how to make this a full RT 3d explorer. A few hours later and this was vibe coded.

To use it you can use the mouse to rotate the fractal the the mouse wheel to zoom in and out. to map from 4d to 3d, one of the dims is mapped to an adjustable slider. the there is also a clipping plane slider to help visualize the internal structures of the fractal.

I have mixed feelings about vibe coding. It was amazing to go from an idea to live implementation within a few hours, but in my coding projects, I've always appreciated the journey and the learning, not just the final product. Vibe coding kind of skips to the end which is exciting and efficient, but just not as fulfilling as struggling through a project step-by-step.

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The article discusses the development of Nebula, a decentralized cloud computing platform that aims to provide secure, private, and scalable computing resources to users and businesses. Nebula leverages blockchain technology and incentivizes users to contribute their computing power to the network, creating a distributed and resilient infrastructure for cloud-based services and applications.
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bryanjj.github.io
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