Moin LTD.KUNNINGHAM,
UV mapping is no matter of SH4 but your 3d graphics programme. Itīs also called texture mapping. In addition to itīs worldīs coordinates at least one set of texture coordinates belongs to every vertex. Thus the 3d programme / game engine knows where to apply which part of the texture file, like a decal set.
When changeing the texture coordinates, they will be automatically saved with the *.obj file. Any *.obj file can hold only one set of texture coords. But that only matters if you want to apply changes to the shadowmaps, as they need an additional set of uv mapping coords. When re-importing the re-mapped 3d object, these uv mapping coords will be imported.
Regards,
DD
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