from the lesson by Bruno Simon in the three.js course https://threejs-journey.com/
Earlier page with study of lights
https://sf5.github.io/threejs/lights/postprocessing effects with leva:
https://sf5.github.io/threejs/postprocessing/
https://sf5.github.io/threejs/seachallenge
It takes a few seconds for the rocks to load in the scene
uses Yuka for the wandering fishes https://mugen87.github.io/yuka/
changing a monkeyhead with sliders
Suzanne is made in blender with shape keys. importing it as gltf and using morphtargets in three.js
https://sf5.github.io/threejs/shapes/