Are those NOT vector graphics? I thought "graphics" could be divided into two categories 1. bitmap 2. vector graphics.
Please clarify If I'm wrong, i.e., give me a reading list!
I don't know any single game that would be using vector graphics. It's not impossible but I've just not heard it being used.
The primary mode of using graphics in 3D is to draw a bitmap upon the face of a triangle made of three connected vertexes with the help of UV map telling which portion of the image gets drawn where and in which orientation.
In case of 2D and some 3D's 2D implementations we simply draw the bitmap to the screen while applying rotation and scale to it. In 3D engines it is essentially drawn to a plane and the plane will have position, rotation and scale relative to the screen size as well as tiling options including clamp or no clamp and x and y tile factor, eg. half a bitmap on x axis or n number of it, n being float value and not limited to integers.
If you're interested in games one good place to find reading is here:https://unity3d.com/
Alternatively you could go for Unreal DK.
Neither has any real advantage over the other.
Mind you that typically in games people are paid less than programmers or artists outside of game development and they enjoy less work security and worse working conditions although the conditions can also vary largely and what is deemed "not competitive" salary is a very subjective consideration. Lots of people tend to claim that you can make almost twice as much outside games while also potentially having a more secure job.
Also, in games you can expect that you cannot afford to make a whole game on your own expense and when you get hired to work on someone else's game the chances are it's going to a stupid game, worse yet it might be a mobile game.
For some inexplicable reason Finnish game industry seems to be hell bent on focusing in mobile games which is absolutely moronic beyond idiocy. But since two companies made it big in the early days then everyone has to follow to the field even if it's beating a dead horse by now.