LoD models for cars 0, 6 and 33

So it turns out the game does use an unaltered version of Zlib. My bad data was a result of assumptions about how the texture data is inserted into the car’s data blob.
At first glance it appears the texture data is just dumped straight into the gap that exists for it, but this is not the case. What I thought was a second table of texture descriptor pointers is actually a list of all the individual textures the car uses. After inflating the car’s data this table is walked through and used to transfer the needed textures into their positions within the blob, so in some cases not all the inflated data ends up transferred into the blob. As simple as that!

I was able to work this out pretty quickly using MAME, not only does it actually run WDC, the graphics are correct, and it has an excellent debugger with every feature I could dream of a N64 emulator having. I can’t believe I didn’t find out about this sooner. The only down-side is it runs very slowly, but frankly I couldn’t care less!

The reason I’m only showing LoD models and not the most detailed ones, is that the detailed models are split up into separate pieces (grill, bonnet left, bonnet right, etc) and I haven’t added the ability to draw them all at once yet. Soon, soon.