javascript - How to write this effect in H5 canvas? Does anyone have any ideas or code?

Question

H5 canvas How to write this effect? Does anyone have any ideas or codes?
Ripples are the same as raindrops

Answer 1

https://codepen.io/Yakudoo/pe...

Answer 2

Make a small ball
Make an ellipse ----

Answer 3

Although I sometimes use canvas to make some dmeo, but the gradient of the effect here is really not regular, and I look confused