BIFS is an abbreviation for "BInary Format for Scenes". BIFS provides a complete framework for the presentation engine of MPEG-4 terminals. BIFS enables various MPEG-4 media to be mixed together with 2D and 3D graphics, handle interactivity, and deal with the local or remote changes of the scene over time. BIFS has been designed as an extension of the VRML 2.0 specification in a binary form.

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