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Rec.Autos.Simulators Archive

Editing 3do files

3 posts by 3 people · 27 Jan 1998 - 30 Jan 1998

Tom Hansen 28 Jan 1998#394289
This subject comes up from time to time. The answer is that there have been no original tracks created for Papyrus simulations to date. There are many modified tracks - but no "fantasy" tracks. The 3DO file is only part of the track. It represents the visual image of the track along with many texture files which depict complex images such as grandstands, trees, billboards, infield vehices etc. However, the thing you and the AI cars drive on is represented in the the TRK file. This file has to represent the track with identical coordinates as the visual image in the 3DO file - or funny things happen like driving through the track surface, under the track, outside the track etc. After modifying the TRK file - I once found myself 50 miles from Dover and viewing the track from the outside. I was able to close on the track by driving towards it and when I reached it I warped back inside and spun out. I apparently created some sort of black hole. Kinda neat - but definetly undesirable for racing. To date - I have not discovered what some of these mystery fields in the TRK file do - other than mess things up when I change them. I suspect that no once has more than 90% of the pieces of the puzzle figured out. With what I know - I can tell you that developing a truly original track would be large scale effort. If you are a proficient programmer and artist - I suspect you could develop the tools, artwork etc in 6 months time - assuming of course you could gather the 90% the sim community knows about the files and then reverse engineer the remaining 10% (the toughest part). This of course also assumes that you can work on this full time - and silly things like a paying job don't get in the way. This is why no once has done it yet. Some folks are changin banking etc. to existing tracks and modelling similar tracks. I have seen a Bristol knock off with less banking - done rather well in fact. I suspect these folks do have most of the pieces of the puzzle. But again, developing the track from scratch would require some visual editing tools that do not exist today. I think the folks that developed the modified Bristol and other modified tracks are doing it the painful way - mostly by hand. All that said - I am sure you get involved with some of the folks doing tracks and help them out and learn about them. You can readily find these sites on the internet. Here are some .... there are many more too - but I don't have the URLs handy. If you don't bring programming or artistics skills to the table - you probably won't get too far however. There are requirements for this type of work. http://sim***world.simplenet.com/nascar2/index.html [link lost in import]
A hex editor, lots of patience, and a whole lot of knowledge about hex editing. I have the editor, the patience, but not nearly enough knowledge.
Quoted text (10 lines)>What program is used to edit 3do files? Also, how can "fantasy" tracks be >created? >Thanks >-- >Robert Haviland >Levi Strauss closes 11 plants >http://www.hickmanonline.com/levi515m/index.htm

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