How necessary is baked lighting in a 3D game? I understand the performance benefits, but is a deferred renderer enough for most global illumination? Was thinking of writing a standalone light mapping tool but it's a new kind of tech for me that would probably take a while

Worked on a deferred renderer this weekend. Set the background clear color to blue so you can see the edges of the light volume

I'm working on a deferred renderer in DirectX/C++. Here's an example of a point light. I set the background clear color to corn flower blue so you can see the shape of the light volumes