How to render a mesh gradient using RBF interpolation

原始链接: https://www.notion.so/Smooth-Mesh-Gradients-with-RBF-Interpolation-1ba8eeb5a3e68046b34cf997fe67d3c1?source=copy_link

Here's a summary of the Hacker News thread: A user, olpyhn, shared an article on using Radial Basis Function (RBF) interpolation to create smooth, organic mesh gradients from colored points. This method offers a portable, flexible, and simple alternative to traditional techniques. In the comments, smidgeon suggested exploring RBFs that don't "decay with distance," like multiquartics, as they may offer better approximation and linear system conditioning. Olpyhn plans to experiment with this. Smidgeon further recommended compactly supported RBFs, such as Wendland functions, for scenarios with many points and where gaps aren't a concern, due to the resulting sparse linear systems.
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