Well, this chapter is a sort of professional tips. Some professional
car-designers suggested me to write about this step.
You need several photos of cars front+side+top view and rear+side+top. It helps to
find fundamentals of cars' shape.
If you have a color printer then it's recommended to make these photos bright and
print them (A4 or A5 format) to keep these photos on hands.
I have the photo of BMW form rear+side+top:
If you have printed such a picture, you can take pencil and draw sharper
lines that makes the individual shape of that car or forces the car looks like
this car but not like any other. I've drawn some of these lines over the photo. They
are black:
You can even draw polygons over it. While drawing, you can make some other decisions,
which details of car will be modelled in 3D and which will be planar (painted with
texture). For example, on the following image I've shown how polygons can lie over the
car's shape. As you see it was decided to make 3D-modelled bumper details and not to
make 3D-modelled license plates well.
This drawings can be saved for later use when modeling, but we shall not use them
here. I've just shown one of approaches in modeling 3D cars. We shall use blueprints,
since most of fundamentals lines that makes the shape are drawn there.