We outline here the requirements of a 3D

game engine, illustrated by describing

a particular engine’s components. We designed the

game engine, marketed as NetImmerse, to run on PCs

with a broad range of performance levels, both with

and without 3D graphics acceleration. We have found

that a high-level programming interface need not compromise

performance.-We outline here the requirements of a 3D game engine, illustrated by describing a particular engine's components. We designed the game engine, marketed as NetImmerse, to run on PCs with a broad range of performance levels, both with and without 3D graphics acceleration. We have found that a high-level programming interface need not compromise performance.