How to implement 3d graphics imitating vector graphics in a game?

Question

3D

So that only a frame of ribs is visible, like a Battlezone arcade machine (ATARI, 1975)

Answer 1

These aren't shaders, they're just wireframe rendering.
Common engines should be able to. Even sketchfab can: https://sketchfab.com/models/e3ac2090714348a3bbf04...

Answer 2

These are normal 3D models. With regard to OpenGL, this can be done using the GL_LINES drawing mode (I could be wrong).

Answer 3

These are cartoon shaders. cartoon shader
en.wikipedia.org/wiki/%D0%A1%D1%8D%D0%BB-%D1%88%D0...
And there it already depends on the settings. For example, if only edges are needed, then it’s more likely that they are no longer shaders, but just another rendering engine. They are called differently everywhere. wire frame render

Answer 4

Thank you! But I think it's not about shaders, there was no DirectX on oscilloscopes) Similar is used in demos, most likely everyone implements it as best they can, and on what they can. By the way geakstr, you are right about GL_LINES