
Originally Posted by
Ha3aP
Hi! You do not have a lesson on the envelope machines Spin Tires? No one shares the experience

Currently there is not a whole lot of info about it. I think the most challenging step is converting the 3d model into DirectX format.
People just try to work their way through, using the original game assets as a reference. So it is more like step-by-step, trial and error process.
Developers may release some docs/tools, but this probably won't happen anytime soon.
This may be a starting point -
http://modfiles.ru/forum/5