How can I scale (and position) a model in relation of two other objects in the 3d world? I need that for the "visual management" of the springs and dampers of a car.

Thx in advance.

Explain more??

@cowabanga: I have a 3d-model which is a spring. This I want to position between a wheel of my car and the body of my car dynamically because the distance between is of course varying.

vec_for_vertex
vec_set
my.scale_x,y,z

first calculate 2 positions you want your spring to be attached using vec_for_vertex on car.

then vec_set your springs position to lower one.

usin vec_sub, calculate the vector that points from you one point to other. use vec_to_angle. this will give you the angles which you spring should use.

then using ve_length calculate the lenght of thet vector and scale you entity accordingly.

Sounds logical but also complicated. I was hoping of any functionality in the engine (not physics) that keeps objects connected to others.