Might you be able to...explain...that to me in any sort of practical terms as a layman? It SEEMS like something that could offer 3D perception and depth tricks without actually gettting into 3D, which has been a useful thing for various 2d games over the years...
Really, I think it's because of the extra calculations vector graphics have that raster graphics don't.
True, it's hardly an issue today with the pure horsepower modern computers have, but back a few years ago, that power wasn't there and so you went with the raster graphics because they were less processing load on the system. (I'm generalizing I know).
It's the basic format of the graphics that cause this.
Take a top down game like AI war where models only rotate around the one axis.
Take a very basic ship made out of 6 triangles. (I know AI war has more, but keeping it simple.)
For raster, you have to draw separate images for each angle you want to show the ship at. but at a specific angle, it's load the image and display it, move on to the next item.
For vector graphics it's a lot more complicated. 6 triangles have 18 vertexes and 18 lines. Assume a bunch of triangles land on the same points so we have 9 vertexes and 9 lines on our 6 triangle ship model. The engine has to determine the angle the ship is at, to whatever precision math is used, determine where the 9 vertexes are on the co-ordinates of the screen, then draw the 9 lines between the vertexes, then fill in the triangles so the model is solid. Now you can move onto the next item.
So vector is much more horsepower intensive, but more accurate. In this example of a ship turning, raster can only display the angles that an artist has drawn during game development and will 'jump' between these angles. Vector would have perfectly smooth rotation, as the expense of a more complicated display program.
Again, note that I haven't actually programmed with either type of graphic. I do deal with graphics directly in my job so I know this, but it's your call which you want to use for what you are trying to do.
At work, we use vector because I can draw a room with equipment in it that is an exact representation of reality, down to the millimeter and I can zoom it however I want and it will stay accurate. Show the whole room, or zoom in on a junction box on the wall, the vector drawing will stay accurate.
Using raster, this drawing of the room is scaled to fit on a page. The junction box on the wall might be 10 pixels high at 600 dpi. Good luck showing any detail of the junction box with only 10 pixels to work with.
Take that FWIW.
Hmm, for curiosity's sake, I checked out AI war, looks like it is using raster graphics.