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VIRTUAL REALITY ENVIRONMENT (WXGE 6310). Software. Introduction. VR Software exits in many forms and for many VR applications Three Dimensional Modeling Software Two-Dimensional Graphics Software Digital Sound Editing Software Simulation Software. Three Dimensional Modeling Software.

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VIRTUAL REALITY ENVIRONMENT (WXGE 6310)


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virtual reality environment wxge 6310

VIRTUAL REALITY ENVIRONMENT (WXGE 6310)

Software

nazlita@fsktm.um.edu.my

introduction
Introduction
  • VR Software exits in many forms and for many VR applications
    • Three Dimensional Modeling Software
    • Two-Dimensional Graphics Software
    • Digital Sound Editing Software
    • Simulation Software

nazlita@fsktm.um.edu.my

three dimensional modeling software
Three Dimensional Modeling Software
  • Since virtual reality is a three-dimensional medium, all the objects in a virtual world must be specified such that they can be viewed from any angle.
  • A simple picture of an object is not sufficient.
  • The actual geometry of the objects must be specified using 3D modeling software, and then imported into the virtual environment

nazlita@fsktm.um.edu.my

two dimensional graphics software
Two-Dimensional Graphics Software
  • Since there is a limit to the geometric complexity of the objects in a virtual world, it is often useful to be able to "paint" the surfaces of the objects with additional detail.
  • This process is called texture mapping and requires two-dimensional graphics software often called "paint programs".

nazlita@fsktm.um.edu.my

slide5
Images created with this software (or photographed, digitized, and then edited with this software) can then be stretched over the geometric framework produced in the 3D modeling software to create detailed, interesting objects.

nazlita@fsktm.um.edu.my

slide6
A few examples of 2D graphics software:
  • Adobe Photoshop
  • Adobe Illustrator
  • Fractal Design Painter

nazlita@fsktm.um.edu.my

digital sound editing software
Digital Sound Editing Software
  • Sound is a very important, yet often neglected aspect of virtual reality.
  • Although the state-of-the-art in 3D graphics is very impressive to look at, it is not very realistic, and does not approach the potential of the human perceptual system: a virtual environment is low resolution, looks like computer graphics, and is not likely to be mistaken for the real thing.

nazlita@fsktm.um.edu.my

slide8
Sound reproduction technology is much further along (is it live or is it Memorex?).
  • Digital sound is nearly as high resolution as human hearing.
  • Digital editing software allows you to cut, splice, mix, and loop the sounds of your virtual environment

nazlita@fsktm.um.edu.my

simulation software
Simulation Software
  • Virtual Reality requires sophisticated software in order to provide a compelling experience.
  • The software must be able to process the inputs coming from trackers and input devices, and then update the displays at least 20 times each second.
  • This is further complicated by the fact that there may be more than one person in the virtual world, more than one set of inputs and displays, and more than one networked computer running the simulation.

nazlita@fsktm.um.edu.my

slide10
The software creates and maintains an internal database of all the objects in the virtual world, continually monitors changes to the database, and distributes this information to all the computers participating in the virtual world.

nazlita@fsktm.um.edu.my

slide11
Examples of VR Simulation Software:
  • Sense-8
  • Division
  • Superscape
  • Cosmo
  • VRML

nazlita@fsktm.um.edu.my

slide12
Integrated Software Systems to get the complete Virtual Environment
    • Superscape Virtual Reality Toolkit (VRT) : Desktop Virtual Reality
    • Distributed Virtual Environment System(dVS): design to suit a range of different parallel architecture
    • VPL RB2 system: allow user to construct VE very quickly
    • Virtual Environment Operating Shell (VEOS): software environment for prototyping distributed virtual world applications
    • Minimal Reality (MR): A toolkit for virtual environment applications, Low Level peripheral device support

nazlita@fsktm.um.edu.my

vr softwares examples
VR Softwares:examples
  • WorldToolKit (WTK) Sense8 Corporation: provides development environment for synthesizing virtual environment
  • Software Systems Multigen: modelling 3D objects
  • Gemini Technology Corporation Generic Visual System (GVS): parallel processing comunication environment
  • Body Electric: Visual programming of the interaction/ behaviourial environment
  • VRML:Virtual Reality Modeling Language, which allows designers to create interactive animated 3D virtual world

nazlita@fsktm.um.edu.my