Is there a C++ library that renders to pixels? [closed]

I am currently constructing a python library called "imagine" with a C++ backend which can create 2D and 3D simulations. While it is possible to completely recreate a 2d renderer from scratch, it would be quite tedious and much less efficient. I cannot find a 2d renderer that renders to pixels which I can manipulate and transform into video. Does anyone know a C++ library that can do that?