Research interest in Augmented Reality (AR) has been steadily increasing in the past decades. However, while we see a wide range of publications implementing AR nowadays, it is often the case that ...the software is not included in the publication, leading to future research having to re-introduce similar custom AR solutions. We identify one such case, that of geolocated AR, which poses a deceptively complex issue, namely that of correctly aligning a virtual view with geo-referenced material around the user. We present here UnityGeoAR, a package for the widely used game engine Unity3D, that handles geolocation, reprojection, and AR view alignment through a minimal Application Programming Interface (API), in an effort to standardize geo-AR development and reduce development and implementation time for such a widely used aspect of AR.
The concept of "Virtual Reality" has entered our lives by adding virtual reality glasses to the computers, smartphones, or tablets that we frequently use with the developing technology day by day. ...Virtual reality includes the virtual world and three-dimensional virtual objects created in the computer environment. Virtual Reality technology aims to enable people to interact with objects by immersing them in the virtual world through equipment (VR glasses, hand controls, treadmills, etc.). This technology can be used in education, health, shopping, etc. used, in many fields. In this paper, virtual reality technol-ogy was used in an automobile store application. The study aims to enable people to read the necessary information about the selected automobile by choosing a car and color. Users will be able to visit and interact with this auto shop with virtual reality equipment in their environment. The 3D models required for the study were made with the Blender program, the software was made with the Unity3D game engine, and the application was developed. The application was tested with the participation of 26 people. As a result, the feedback received from users has been positive. It is thought that the study will be developed and contribute to the literature in different ways.
The steep slopes on both sides of the hydropower station in the southwestern mountainous region develop a multitude of dangerous rock formations. The rolling, collapsing and falling of these ...hazardous rocks have profound implications on the normal operation of the dam, main buildings, factories, roadways, and slope support systems. At present, the prediction and protection measures against rockfall disasters are predominantly reply on the two-dimensional Rockfall method, which ignores the spatial geometry of these dangerous rocks. In reality, falling rockfalls exhibit three-dimensional motion, and their threat zone extends throughout a three-dimensional geographical space. In view of this, this study is based on the hazard assessment results of the hidden danger investigation in a specific hydropower station of Yunnan Province. It employs field investigations, airborne LiDAR remote sensing measurement technology, and unmanned aerial vehicle (UAV) oblique photography technology to obtain high-precision laser r
In the age of digital disruption, universities and educational institutions all over the world provide many bachelor’s, postgraduate, and non-degree curriculums. Information is mostly presented in ...different forms, i.e., PR on websites, mobile applications, or social media; including field PR at different sites, e.g., department stores and schools. However, the limitations and the problems are that presented information fails to attract or motivate perception, interest, and participation of the target groups. Also, traditional PR requires resources in terms of persons, time, and a large amount of expenditures. Thus, this research aimed to present the development of a game to present information for PR of bachelor’s curriculums using Unity3D, which could reduce the limitation of presentation or PR in the traditional forms. It could also save PR budget and could be done anywhere and anytime.
This study aims to develop a simulation and modeling physics textbook assisted by Unity3D software with a self-regulated learning approach. This research uses Development and Research method through ...4D Model. The definition stage is carried out by determining the characteristics of the textbook that will be developed through the initial study. The design stage is done by choosing the format and design of the textbook to produce the first correction (draft). The development stage is carried out to have the second draft, third correction, and the final product of the textbook. The second correction is obtained through the revised expert validation results that have been recommended. The third correction is the acquisition of small group test results by taking them randomly. Based on the results of field tests on students who are taking Physics Simulation and Modeling courses, the final product of the textbook is obtained. One of the textbook features and tools developed is the project assignment feature and the video tutorial tool. Based on the validation of the textbook and its supporting devices, the criteria are very feasible and ready to be used and can guide student learning independently through the features in the textbook. The development of this textbook is expected to assist in developing simulations and modeling in physics and other fields of science, such as engineering and health.
This paper introduces an interactive Unity3D‐based three‐dimensional virtual practice platform for chemical‐engineering, which is intended to assist the chemical engineering students in their ...production practice. The real chemical plant sections are recreated in the virtual environment of the system. The system provides users with two kinds of walkthrough modes, demonstration of the structure and operation principle of some main equipment as well as the operating functions of setting up some major pumps and valves so as to strengthen the students’ understanding of the chemical process and train their operative ability. In addition, its virtual treatment of emergency can help to enhance the safety production awareness of the students and cultivate their ability to respond to unexpected emergency. The students’ feedback to our survey indicates that, despite some suggestions for further improvement, the virtual platform has more advantages and characteristics compared with traditional practice mode, and is effective in helping them understand the chemical process and equipment. What is more, some improvement has been made to perfect the system with students’ suggestions fully taken into consideration.
The use of virtual teaching aids with AR technology in various areas of education, including physics, has been studied. The similarity between physical and electrical models has been established, and ...the development of a mobile app for studying simple electric circuits has been validated. The feasibility of developing the technique of augmented reality mobile apps has been established. The following milestones have been identified in the development of the augmented reality app: production of electronic models, installation of the game engine Unity3D, development of all program scenes, operation testing, and demonstration. The application of scenarios for electronic models rotation and movement has received special attention. In-house created augmented reality mobile app for mobile devices "Augmented reality program for studying the simplest electric circuit" has been offered. The developed mobile app reads, recognizes, and displays the product electronic model on the screen. It has been demonstrated that the augmented reality application produced by the author team as mobile teaching software can be used to complete assignments for students' individual work as well as classroom studies at colleges.
Like many prehistoric monuments, the Neolithic Temples of Malta have been the subject of astronomical studies, aimed at identifying possible alignments with cosmological events. The orientations of ...several sites have been suggested as evidence of an interest in the movement of the sun, moon, and stars, and of the importance of certain days such as the equinoxes and solstices. However, while individual sites may seem to align to specific events, a wider study into patterns of orientation is needed to determine whether these are the result of human action or random chance. In this paper, alignments at extant sites are investigated through 3D simulation, providing new data and statistical evidence for (and against) previously identified alignments. The methodology proposed uses Raycasting in Unity3D to identify the accuracy of orientations throughout the Maltese Neolithic (3700-2400 BC) at 23 temples sites. The orientation is analysed in relation to plausible astronomical events, as suggested by material evidence. The data produced shows possible patterns of alignment, rejecting commonly accepted targets such as the sun, in favour of a cautious acceptance of an alignment with the constellation of Crux. This shift in focus alters heliocentric interpretations of Maltese temple culture, while also supporting a wider landscape cosmology. This study demonstrates the use of 3D simulations as a tool for investigation of archaeological queries. The research not only provides a new methodology for the automatic calculation of alignment patterns, but also establishes how 3D simulation can create new data which can impact current archaeological theories.
•Lightweight visualization software for large-scale geotechnical engineering simulation.•Visualization of models with time-varying attributes attached to fixed mesh and models with time-varying ...mesh.•Effective data preprocessing massive-sized parallel simulation data.•Efficient data access and rendering optimization for smooth user interactivity.•Deployed on various operating platforms for portable devices.
Development in large-scale geotechnical engineering simulation places tremendous demand for efficient visualization of such simulation data. This study presents a lightweight software tool, i.e. Geotechnical Interactive Visualization (GIV), as a solution to this challenge, which achieves efficient interactive visualization of large-scale simulations data in geotechnical engineering. Visualization data flow and algorithms specifically optimized for common geotechnical engineering applications are implemented in GIV. GIV can visualize geotechnical structure models with time-varying attributes attached to mesh with fixed topology, and also models with time-varying mesh topologies but no attributes attached, the two most common visualization tasks in geotechnical engineering. Challenges for large-scale simulation data visualization, including parallel simulation data redundancy, massive data size, dynamic user interaction, and portability are overcome via specifically designed algorithms for simulation data preprocessing and optimized visualization modules using the powerful 3D rendering and interactive game engine Unity3D. Comparison of GIV with several widely used visualization tools for the visualization of large-scale idealized datasets and realistic geotechnical simulations highlights the visualization efficiency, smooth interactivity, and lightweight features of GIV.
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