Subtraction between a rectangle and a circle.

[robin gautier]

Hello.

 

I am kind of new in kivy development and I am really enjoying all the framework.

 

But is there any simple solution to draw the subtraction of a rectangle and a circle like shown on this image:

with kivy canvas, shader, mesh, other kivy features or any very light external library compatible with kivy?

 

I am trying to make a map with a fog of war and I would use this shape with semitransparent black in order to make my background darker anywhere but around my entities.

 

Thank you!