Notes

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Long-form notes on generative 3D: what a method actually does, worked out on an idealised model and then checked against measurements on a real one.

  • Classifier-free guidance

    What CFG actually does

    Classifier-free guidance is switched on in almost every diffusion and flow sampler. It improves prompt adherence and usually quality — but what it does to the output distribution is still disputed. An idealised model, measured against a real 3D generator.

    · 28 min read