We propose an architectural framework for building a wide variety of 3D virtual world applications. The applications consist of entities to which arbitrary functionality is added in components with custom data and associated code

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PrePrint: An Entity-Component Model for Extensible Virtual Worlds
This article describes a mixed reality learning experience for the learning of Spanish as a foreign language which takes place on a virtual world that mirrors a boulevard in Madrid. To this end, we have extended the capabilities of an open source multi-user 3D virtual world platform to orchestrate learning activities and to use augmented reality and augmented virtuality.

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PrePrint: Connecting Virtual Worlds with the Real World for Learning a Foreign Language
By now, most people have heard of GIMP, the free open source photo editing program; though a lot of people don’t use it due to it’s reputation of being cumbersome to learn. That may or may not be the case, but it doesn’t mean everything you’d want to use it for has to be that Post from: How to Change Eye Color in GIMP the Easy Way
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How to Change Eye Color in GIMP the Easy Way
Most modern high end photo editing and manipulation programs have a tool, or set of them, along with some techniques that allow users to create what looks like multiple instances of the same person in a single defined space, hence the name cloning.
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How to Clone People in Photographs Using GIMP
Mac OS X is a pretty sweet operating system. Most Mac users are generally satisfied with their choice of OS X. However, there are still those times when good old Windows would come in handy.

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4 Ways to Install and Run Windows on a Mac