The main data file for this game is compressed, but it is possible to look at uncompressed data inside a savestate.
sly3modelpara.jpg





Model Format Type 1:

01 01 00 01 00 00 00 20 50 50 50 50 GG 80 XX 75
{2ByteSignedVertexes(X,Y,Z)}
.....
QQ 80 XX 75
{2ByteSignedVertexes(X,Y,Z)}


Model Format Type 2:
GG C0 XX 68
{4ByteFloatVertexes(X,Y,Z)}
QQ C0 XX 6E
{4ByteUnknowns}
WW C1 MM 6E
{1ByteIntegerVertexes}

sly3unknown.jpg
A mesh shown as Tristrips which are incorrect. The character is Dimitri. And he is wearing the scuba diving equipment


slycorrect.jpg
A mesh shown using a face index which is correct though there are some overlaps.