Create and View Your Own 3D Models in Virtual Reality *
|Areas of Science||
Video & Computer Games
|Time Required||Short (2-5 days)|
AbstractVirtual reality (VR) headsets are becoming increasingly popular. Video game designers use a variety of programs to create the amazing 3D worlds that you see when you turn on your favorite video game, and many of those worlds are now also designed to be compatible with VR headsets. Can you use a computer-aided design (CAD) program or video game engine to design your own virtual world that can be viewed using a VR headset?
Did you know you do not have to be a programming expert to create appealing 3D scenes? Table 1 shows a list of programs and websites that can be used to do this; there are options for students at various skill levels. Note that VR technology is changing rapidly, so you can also do your own search for new VR-related software and websites. Follow the links to the individual websites to find tutorials or instructions for using each type of software.
|Tinkercad||Free CAD program, great for beginners|
|SketchUp||Beginner-friendly CAD program, free version available|
|Fusion 360||Intermediate CAD program, free for students|
|Inventor||Professional CAD program, free for students|
|Solidworks||Professional CAD program, discounted version available for students|
|Sketchfab.com||3D model sharing website. Easy to upload models from any CAD program and view them in VR on a mobile device. Good option for students of all skill levels who want to view a CAD model in VR.|
|Unity||Video game design software. Free version available. For advanced students.|
|Google VR||Documentation for developing virtual reality apps for Android and iOS devices, including games designed in Unity. For advanced students.|
Figure 1 shows a simple forest environment made using Tinkercad, and Figure 2 shows a house designed using SketchUp. Both are displayed using the Sketchfab viewer. On a desktop, you can use your mouse to control the camera and look around the models. On a mobile device, you can click the "View in VR" button. This will split the screen into two images, one for each eye, that show the scene from slightly different angles (just like your eyes work in the real world). When you place the mobile device in a VR headset, the result you see is a single, 3D image.
This project may be a good fit if your school has a "maker fair" or another type of exhibition where you can show off something you designed or made. If you want to enter it in a traditional science or engineering fair, you will need to figure out how to convert it to a project that follows either the scientific method or the engineering design process. Here are some ideas:
- Your goal could be to create a realistic looking virtual scene. Measure how users react to changes to certain variables in your environment, like lighting or material texture. What makes a model the most "realistic"?
- Can you make your game immersive? See if you can get users to physically react (for example, jumping back in surprise) to features in the environment, like standing on the edge of a cliff or above a pit.
- Is VR really better than a regular flat computer monitor or TV? Compare how users react to environments displayed in 2D on a regular computer screen versus in 3D using a VR headset (see the Science Buddies project Do People Prefer Virtual Reality Headsets over 2D Pictures? for a similar project involving pictures).
- How can a VR environment convey a sense of scale? Can you make a user feel like they are a tiny ant in the middle of a room, or a giant looking down on a city?
- How does virtual reality compare to a physical prototype? Read this article about surgeons who used VR to prepare for a baby's heart surgery. Normally the surgeons would have used a 3D-printed model of the heart, but their 3D printer was broken, so they used VR instead. What are the advantages and disadvantages of each method?
- Do people remember more details when they view a scene in VR instead of on a regular 2D screen?
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Last edit date: 2018-03-15
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