الفهرس 
Introduction and historical background to virtual realityOnly 14 pages are availabe for public view
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Abstract
Virtual Reality (VR), sometimes called Virtual Environments (VE), has drawn
much attention in the last few years. Extensive media coverage caused this interest
to grow rapidly. We need to understand what are its basic principles and its open
problems, as well as the introduction of the new term BIM which came out of the
VR womb and evolved really rapidly in the architecture and construction field, and
has formed the new VR trend in practical applications
This thesis contains a critical analysis of the way in which the Virtual reality and
computer aided visualization techniques are commonly perceived and employed by
practitioners in architectural field, reaching to the BIM concept that evolved from
the virtual reality womb and analyzing our main case studies done by different BIM
tools by the researcher and measuring the benefits and drawbacks of BIM for the
architectural field and how it needs to be improved coming out with
recommendation for future study concerning the thesis