In this tutorial I am going to show you how to make a semirealistic swimming pool with real refractive caustics using the experimental Blender 3.1 branch.

The Cycles render has always supported caustics but due to how the cycles Render engine works, it was always virtually impossible to render realistic caustics because of the number of samples required to converge.

But in this experimental version of Blender, you can now render realistic caustics in glass, water and other transparent materials.

Thanks for watching!

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