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INTRODUCTION
Virtual reality (VR) is a computer generated and interactive experience that takes advantage of audio, visual, haptic and other types of feedback (Berg and Vance, 2017). A VR scene is based upon simulation carried out using different computer algorithms; the rendering is also performed using different computer algorithms. The virtual environment created with the help of computer computations can sometime be captivating comparable to the real world. For instance the work of (Mahboob et al., 2017) mentions one such virtual environment. It is evident from the use of computer simulations in product development that it improves productivity, quality, reduces cost and development time to a great extent (Mahboob et al., 2018). Augmented reality is also among new emerging technologies that layers the virtual data over a live camera feed (Billinghurst et al., 2015).
These days VR is commonly available in the form of VR headsets which are widely available enabling a person to look around, maneuver about, and interact with the virtual artefacts of a virtual and computer-generated world. A complete virtual reality hardware system may contain a visual display, tracking systems, handheld controllers and may also be a haptic devices (Laycock and Day, 2007). Virtual reality can be used with different conceivable configurations that largely depend on the application at hand. For instance, VR facilities typically use one or more of the following, a large display (i.e. power wall), multiple walls connected together (Cruz-Neira et al., 1993), desktop tracking and head-mounted displays (HMDs). An audio system can comprise of a headset, a speaker or a complete surround sound audio system. Sound localisation can also simulate moving sound from a location within a virtual environment (Rummukainen et al., 2018).
Virtual environment interaction is critical in many applications of virtual reality, it traces various media systems (optical, magnetic, ultrasonic, inertial, etc.), enables the location and orientation of physical objects to be calculated in real time within physical space (Bowman et al., 2008). This becomes particularly valuable when calculating the correct display of user perspectives. In addition to signal recognition algorithms, tracking systems allow natural body movements to be transformed into functional interaction techniques. The portable console allows users to navigate and manipulate objects in the virtual world to enhance interaction.
MATERIALS AND METHODS
Cad model...