Hi, I'm completely new to 3D, especially 3D in after effects. I want to hire someone to make a 3D logo for me, but I'm not sure if 3D art is vector based or bitmap (pixels). This is important because if 3D is bitmap I will have to complete more in my scene for after effects before I have a 3D logo created, whereas if it's vector, I can have it created now and resize it later.
Short and simplified answer. A 3d model is usually Vector, but the output from 3D rendering software is bitmap, allthough some software can also render out flat vector grahpics.
That's a complicated question.
The answer is both and neither.
You can base a 3d model off of a vector shape.
A 3d model can be textured with a bitmap image.
A 3d model is made up of polygons - which are kind of like vector and kind of like bitmap.
If a model is made with too few/too large polygons, it will look blocky (which may be fine if that's the look you're going for - do a Google search for low poly and you will see a lot of art that's created in that [very popular] style).
But, at the same time, you can zoom in really close to a model and it will always have crisp lines.