Innovative technologies, implemented in web browsers, have led to the rise of a new era of virtual worlds. Devices with strong hardware installed may now present 3D virtual worlds utilizing user interaction in High Definition (HD) monitors. Recent frameworks such as X3DOM provide a free of plug-ins solution to present interactive 3D graphics and animations within a browser. Furthermore, MPEG-DASH (Dynamic Adaptive Streaming over HTTP) standard can be implemented in server-client applications to adapt dynamically the video streaming quality in order to provide the best possible user experience. In this work, we present an approach to extend the adaptation methods of X3DOM by adding a mechanism to perform dynamic adaptation and achieve HD video delivery in 3D Virtual Reality (VR) worlds. We maintain the advantages of both bridged technologies and provide a web-friendly application solution without the requirement of software installation.