How to invert text based on background?

Question

css

There is text, it is white, the block is fixed, always in the same place. When scrolling the page, there are many places where there is a white background, and somewhere there is a black one. It is necessary that the color of the text smoothly change depending on the background under it. Is it possible to somehow implement this?
There should be two text colors, depending on the background, for example, black text on a light background and vice versa

Answer 1

https://developer.mozilla.org/ru/docs/Web/CSS/mix-...
Or on js, collecting inverse blocks known in advance and checking their position with the object or calculating colors. In general, there is an expanse of thought.