Algodoo

Ok in the last few days I've learned how to build, script, tune, and design these engines. I know mostly everything about them mechanically and with the code now, but how do you do the exhaust?

That is the only thing I still don't get. My scenes would be so much cooler if I could add exhaust like that.

It involves having circles spawn with limited timetolive (a little number in the script menu that controls how long a geom has until it auto-despawns. If it's at ∞ then it will exist until you delete it, or something else does) that decreases color and increases edgeBlur as this number gets lower. It's pretty hard to explain without a tutorial so I might make one soon.

By the way, the geo metro had the engine mounted transversely. So if you were going to put your 3cyl one from your last scene in it, it would be inaccurate as that would be a longitudinal engine. For example the engine in this is more like what you'd want, just 3 less cylinders. I made a 3c spawn with a turbo once, but it's under 4 pages of crap on my scenes page so i did't feel like going and finding it