Question Diffraction effect in Water

Hi everyone,

I wanted to create diffraction in water, video link for reference:

I wanted to create a realtime physical effect of diffraction - I wanted to create that for study application that I am creating for the student.

I am clueless from where I should begin, I have a slight idea that particular type of noise map maybe can help me but still need further help as I have no idea about which is suitable noise map for this kind of effect.



I want it to be dynamically correct so changing the gap from small to large have different kinds of a wave, reflected in above image.

Thanks in advance.

 

You could use circle cast to know where is a slit and create another wave object from there