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12World Authoring versus Playback


A virtual world can be created, modified and experienced. Some VR systems may not distinguish between the creation and experiencing aspects. However, there is currently a much larger body of experience to draw upon for designing the world from the outside. This method may use techniques borrowed from architectural and other forms of Computer Aided Design (CAD) systems. Also the current technologies for immersive VR systems are fairly limiting in resolution, latency, etc. They are not nearly as well developed as those for more conventional computer graphics and interfaces.

For many VR systems, it makes a great deal of sense to have a Authoring mode and a Playback mode. The authoring mode may be a standard text editor and compiler system, or it may include 3D graphic and other tools. Such a split mode system makes it easier to create a stand alone application that can be delivered as a product.

An immersive authoring ability may be desirable for some applications and some users. For example, an architect might have the ability to move walls, etc. when immersed, while the clients with him, who are not as familiar with the system, are limited to player status. That way they can't accidentally rearrange the house by leaning on a wall.


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