The tri-linear bitmap interpolation was retained for the N64 ... and much critcized afterwards for its blurry aspect of the textures. What a sad thing -_- ... Because afterwards, eventually, even the dreamcast and playstation 2 took advantage of this. The thing about the N64 was it's too small cache memoty, not allowing too high res textures, leading to this this blurry aspect we eventually got in our N64 games.