gt3carmodel.jpg


The car models are in the .VOL file
which can be extracted into smaller files
using the program in the following zip file called "GT3Vol.exe":



Then you can use the program called
"offzip":
aluigi.altervista.org/mytoolz.htm
and run the following commandline
prompt on it (Change the path to where offzip is located on your computer and change the path
to a file from the "Day/Eve/Night subfolder in "Car" folder):
G:\offzip\offzip.exe -a -z -15 G:\PS2Requests\granturismo3\cars\am0006 G:\ps2requests\granturismo3 -0

Then the file that outputs from offzip is the decompressed car file that includes the car model(s) and texture(s).

Format of the models:
Main section:
SubMeshFormat
00 C0 XX 68
4ByteFloatingPointVertexes(X,Y,Z)
UnknownBytes
80 C0 XX 68
4ByteFloatingPointNormalMappings(X,Y,Z)
UnknownBytes