From: Marc Bernatchez Subject: Re: SCI: Systematic Classification of VR Systems Date: Thu, 08 May 1997 09:44:19 -0400 >I would observe that you need to define what you mean by VR; it seems that >you're including only graphics-rich environments in your list above. >However, presence and object manipulation are both present in text-based >virtual realities, such as MUDs, as well as other less CPU-intensive kinds >of VR. This will be my opinion only but, to me, a MUD is not acceptable to be classified as a VR medium. A virtual reality system must have the following: 1 - synthetic generation of a scene (which must be 3D but not necessarily stereoscopic) 2 - Immersion (the degree of immersion may vary significantly) 3 - Interactivity (let the user control the action in real-time) Things that refer to dreams in a human brain isn't VR even if it can surpass VR in many aspects (the feeling of being there and such). So, to me MUDs, using a lot of this dream_imaging_by_the_brain isn't VR. If we start to spread the meaning of VR too much...it will lose all its usefulness. Cheers ===================================================================== Marc Bernatchez | www.imaginative.com/VResources mbernat@total.net | www.gel.ulaval.ca/~mbernat =====================================================================