Changelog:Rev1258: Added new tests in 3D Studio: fog, mipmaps, indexed textures.Rev1257: sceGuTexMode: found meaning of unknown parameter a2 (see video TMOD command). Tested using 3D Studio.Rev1256: Improved sceUtilityOskInitStart (for SEGA Rally)Rev1255: Fixed sceGuTexFilter (tested using 3D Studio)Rev1254: Fix in TBIAS