For VRML, good DEF naming practice should be followed. These practices are particularly valuable during the integration phase. In other words, just do what a good programmer does by instinct. Sounds For most sound files, 11025khz 8-bit, monaural wav files are preferred. These will be added during integration if used.
Ambient sounds are useful, but remember, space is a quiet place.
These ensure the world is more efficient by not playing animations or sounds when they aren't in view or earshot, and they provide more realism. Except for local ambient sounds, this should be seldom. Graphics Graphics will be sized to 128 x 128 before sending to the FTP site. This reduces bandwidth requirements. MPEGs MPEGs should be sized such that they load and decompress quickly.