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New track won't load [solved]
08-23-2010, 09:14 AM,
New track won't load [solved]
I created a simple track using Bob's Track Builder and Blender:
[Image: closed_track_1.jpeg]

It has about 6 turns and some ridiculous camber on some of the turns. I am using this as a test for working with BTB, which I am going to be doing some more work with once things are working smoothly.

Here's my track:
The above tarball contains all the following:
  • DirectX (text) format .x files exported from BTB
  • .blend file created from importing .x files in Blender and manipulating somewhat
  • VDrift track folder for closed_track_1
    • objects exported with, jpk created using joepack utility
    • list.txt created by the above Python script
    • roads.trk created with vdrift-trackeditor
    • track.txt created with vdrift-trackeditor
    • about.txt

The problem seems to be that it's not loading the surfaces. The symptom is that it fails
assert (surface_id < (int)surfaces.size());
in src/objectloader.cpp:275 (I modified it slightly to split up the assertion conditions and printed out the variables, which you can see in the output):

ERROR: Error setting GUI option "game.number_of_laps" to GAME value "0"
ERROR: force feedback: can not open /dev/input/event0 (Permission denied) [src/forcefeedback.cpp:48]
ERROR: Error setting GUI option "game.number_of_laps" to GAME value "0"
ERROR: Error loading texture file: data/tracks/chris_track_1/trackshot.png
INFO: Loading track from path: data/tracks/chris_track_1
INFO: Can't find surfaces configfile: data/tracks/chris_track_1/surfaces.txt
INFO: No Surfaces File. Continuing with standard surfaces
INFO: No lap sequence found; lap timing will not be possible
surface id: 1, surfaces.size: 0
vdrift: src/objectloader.cpp:275: std::pair<bool, bool> OBJECTLOADER::ContinueObjectLoad(std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, MODEL_JOE03, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, MODEL_JOE03> > >&, std::list<TRACK_OBJECT, std::allocator<TRACK_OBJECT> >&, const std::vector<TRACKSURFACE, std::allocator<TRACKSURFACE> >&, bool, const std::string&, TEXTUREMANAGER&): Assertion `surface_id < (int)surfaces.size()' failed.
SIGABRT detected, releasing the mouse

So, any ideas what could cause the surface loading to fail, so that the surfaces vector ends up empty? Whatever is going on, vdrift-trackeditor didn't choke on the track at all...

One other thing, BTB seems to like to use 5 vertices across the width of a track, but vdrift-trackeditor only supports 4...I just used 2 for this export. Could this be causing the problems I'm having?
08-23-2010, 09:28 AM,
Um, duh.
thelusiv Wrote:The problem seems to be that it's not loading the surfaces.
...actually it's that I didn't give it a surfaces.txt. I copied one from another track and it works fine now. Smile

More BTB fun coming soon.
08-23-2010, 10:34 AM,
How do you like BTB?
08-23-2010, 05:51 PM,
It has a lot of good functionality, but the user interface is way behind in terms of usability, and there are some annoying bugs. It's worth the license fee if you really need to make tracks quasi-efficiently. The single-computer licensing scheme is quite annoying, it is based on MAC address and takes a long time (days) if you want to do something like switch the license to a different computer.

I tried getting it to run under Wine without success...I'm not sure if it runs correctly on Win Vista/7, so I have it on an XP laptop, definitely not my favorite OS...

All in all, it's useful software, but it definitely could be better quality.
08-24-2010, 04:56 PM,
How hard can it be to write a pseudo-network driver to fake a MAC address?
08-24-2010, 09:52 PM,
Probably not that hard, FFuser, but it's simpler for now for the members of our project to just pass around a laptop than start learning about WinXP driver development.

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