Environments and System Types of Virtual Reality Technology in STEM: a Survey <s> D. Digital sound editing software <s> Most papers about spatial skills and their components refer to the fact that engineering, architectural and scientific jobs require a good level of spatial ability. Spatial ability has an impact on every scientific and technical field, so it's still undergoing strong development when it comes to engineering, technology, art and many other aspects of life. In the academic environment, Graphic Design teachers usually see students who have difficulties solving tasks requiring spatial reasoning and viewing abilities. The main aim of this work is the development of didactic material based on several virtual and augmented reality formats, knowing how students behave while using them, and checking if they are useful materials to improve their spatial abilities. This work present Three different technologies: virtual reality, augmented reality and portable document format to find out if they are suitable technologies together suitable methodologies to improve spatial ability and from the student's perspective, their opinion of the tool and their motivation to learn more about the aspects of 3D reality. We present a pilot study that compared the results of improvement in spatial ability acquired by freshman engineering students also a survey of satisfaction and motivation of the methodology and technology used. <s> BIB001 </s> Environments and System Types of Virtual Reality Technology in STEM: a Survey <s> D. Digital sound editing software <s> In this paper we propose a method to convert a VRML file into a WebGL rendered scene through an online application that is capable of rendering this uploaded VRML file within the Web browser itself without any plug-ins being installed. The conversion process between the input VRML file and the WebGL using our Web-based converter application is done by analyzing the uploaded VRML file content represented in nodes. These nodes are then converted into scene graph nodes used for the scene creation. A scene tree is then initialized and populated using these nodes containing their info and sent to the proposed dynamic WebGL template. Finally a new HTML5 file is constructed and displayed on the user's Web browser. An extensive set of experiments are conducted to show the performance of the online converter application. <s> BIB002
This type of editing software is used to edit and mix sounds in VR environments with other objects available in the same environment. Examples of sound editing software are Audiobook Cutter Free Edition, Creative Wavestudio, FlexiMusic Wave Editor, Goldwave, Media Digitalizer, and mp3DirectCut. VR environments can be constructed and build 3D objects with animation and user interfaces with integrated a programming language with the language of VR that is VR Modelling Language (VRML)  . VRML is a modeling language written easily to represent Scalable Vector Graphics (SVG). VRML can be used alone and viewed on a player or a viewer or onto a Web browser with an additional plug-in to run www.ijacsa.thesai.org it BIB002 . Most of the 3D environments and the interactive virtual world constructed and created by using VRML language that has improved through different versions since its inception in 1994 BIB001 . Nowadays, VRML became one of the most common 3D languages and filed to construct VR. VRML mostly used according to feature that it can easily access data structure essentially. VRML files can be downloaded and executed on a computer independently. However, it needs an additional plugin to run and operate on any player or viewer [34] .