[lemma="all-encompassing" | lemma="3d"] □
[lemma="all-encompassing" | lemma="3d"] [□]
[lemma="all-encompassing" | lemma="3d"] □+
Most older hardware 3D engines cannot handle textures with a width or height that are not a power of two number of pixels ( NPOT ) , or are unable to do repeat ( wrapping of texture coordinates outside the boundaries ) for NPOT textures . ) speech and handwriting recognition , high-performance 3D engines and MPEG codecs makes them candidates to stay closed . Most 3D engines process vertex data in primitive fashion . Karsten Isakovic maintains an all-encompassing 3D engines list , many with source code available ( though not updated since mid-2000 ) . They were absolutely essential to the game 's success because of their greater experience in dealing with problems of 3D engines .