Hacker News Top Stories with Summaries (November 29, 2023)
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<h1> Hacker News Top Stories</h1>
<p>Here are the top stories from Hacker News with summaries for November 29, 2023 :</p>
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My $500M Mars rover mistake
Summary: Chris Lewicki shares his experience of a near-catastrophic mistake during the testing phase of NASA's Spirit Mars Rover. Despite the initial panic, the team discovered the issue was not as severe as feared, and Lewicki continued to lead the tests. The incident taught him the importance of learning from failure and using it as a stepping stone towards success.
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MeshGPT: Generating triangle meshes with decoder-only transformers
Summary: MeshGPT is a new approach for generating triangle meshes, reflecting the compactness of artist-created meshes. It uses a sequence-based method to autoregressively generate triangle meshes as sequences of triangles. A transformer model is trained on a learned vocabulary of latent quantized embeddings, informed by local mesh geometry and topology. The model can be autoregressively sampled to generate new triangle meshes with sharp edges and efficient triangulation patterns. MeshGPT demonstrates a 9% increase in shape coverage and a 30-point enhancement in FID scores over existing methods.