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Example implementation of a max norm distance field for ellipsoids: shadertoy.com/view/Mt2XWG

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Nice! How you are storing all of this? Is it some sort of hierarchical octree like structure? Do you have any size limitations?

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the SDF only exists while we're building the model, stored only near surface in kinda-octree, size limit 1K^3 currently

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And once the model's build it's all just points? Presumably you have to re-evaluate for animation?

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yeah for rendering it's just point clouds (but we make some other data for physics that I'm not sure we've talked about yet)

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