Okidokes, survey is done (thanks for the help), here's what it was all about:
My thesis tackles the problem of drawing in perspective; something many artists, myself included, struggle with.
Specifically how many artists use crude 3D models as references which they trace over to guide them in their perspective drawing. This solves the problem of drawing perspective correctly, but you get the chore of tracing. I can't think of anyone who enjoys tracing. Well maybe inkers behehe, JK
So I attempted to find a way of removing the need to trace, by seeing if it was possible to render 3D objects so they would already have the appearance of being drawn, even to the point of seamlessly integrating with hand drawn lineart were they in the same image.
I researched various ways 3D can be used to emulate 2D and found that the most effective way of approximating an artist's personal style is sketchup's style function. (I mean there's also a bit of tweaking and fixing involved in Photoshop later as it doesn't render perfectly, BUT YEAH).
Sketchup styles replace edges of 3D models with samples of lines. And sketchup is also mega easy to use, even non 3D artists should have little issues with it.
Using sketchup's style editor I made a sketchup style using my hand drawn lineart. Initial algorithmical measurements and test showed that observers could not distinguish shapes drawn via a graphic tablet from those same shapes shapes made in sketchup.
But okay those were basic shapes. The real test is seeing if 3D models rendered this way could integrate seamlessly into an actual drawing, so I made an image that was about 50% 2D and 50% 3D to see if people would notice.
Here it is: https://dl.dropboxusercontent.com/u/9034832/Fax/Slika.jpg
And the results have now shown that no, the majority of people thought the image is stylistically uniform and is in fact drawn. Very few people noticed the image contained 3D renders, even less when you consider some of them thought 2D things were 3D renders (which lets me know they weren't being completely honest with their answers, heh).
In case you're interested what's what:
The 3D render https://dl.dropboxusercontent.com/u/9034832/Fax/3D%20crte%20full.jpg
The drawn bits https://dl.dropboxusercontent.com/u/9034832/Fax/Steps%202D%20crte.jpg
Oh and an added bonus of using 3D is of course the shadows https://dl.dropboxusercontent.com/u/9034832/Fax/Steps%203D%20sence.jpg
(BTW in case you're wondering - I didn't use color so it would be easier for people to scrutinize the lines)
It's nothing revolutionary, but I myself find it very practical.
Be it complex environments like this one or simpler objects like the gun here - for certain elements I get better and faster results using sketchup as opposed to drawing or tracing. ESPECIALLY when doing things like comic books where the same space sometimes has to be show from several angles. And instead of slaving over my Wacom making a three point perspective I just rotate the camera.
If anyone's interested I will be posting a tutorial on my site after the paper is finished and submitted in two months. It's not tricky and it could work for other artists' lineart as easily as it did for me. No point in writing a paper that just work for one person