Real Walking

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University of London의 강좌에서

3D Interaction Design in Virtual Reality

46개의 평가

University of London

3D Interaction Design in Virtual Reality

46개의 평가

Specialization Virtual Reality에서 5의 강좌 3

This course will teach you about one of the most important aspects of VR, how you interact with a VR world. Virtual Reality is completely different from an on screen app or game. You are completely immersed in a VR world, so it doesn't make sense to interact only through buttons or menus. You will get the most out of VR if you can interact with the world just as you would with the real world: with your natural body movements. You will learn about the basic concepts and technologies of VR Interaction. You will then get hands on, learning about how to move around in VR and how to interact with the objects in your world. The course will finish with some advice from experts on VR interaction design and you will do a project where you will get real experience of developing VR Interaction.

수업에서

Moving around in VR

Welcome to Week 2! This week, we'll cover moving around in VR. We'll look at physical navigation, such as walk-in-place, and virtual navigation, such as teleportation. You will end the week by beginning your project, and submitting your work in progress.

Introduction to Navigation in VR3:21

Real Walking4:35

Redirected Walking3:37

Walk-in-Place3:17

Virtual Navigation3:14

Teleporting5:22

Teleportation4:50

Travel in VR | Quality Factors3:56

강사 만나기

Dr Sylvia Xueni Pan
Lecturer, Department of Computing
Goldsmiths, University of London
Dr Marco Gillies
Senior Lecturer
Computing Department, Goldsmiths, University of London

[MUSIC]

Physical navigation is the most natural way to move around in VR.

In 1992, Fred Books pointed out that physical motion powerfully

aids the illusion of presence.

And actual walking enables one to feel kinesthetically how large spaces are.

Studies since the 90s have shown that real walking is better than

virtual navigation or other hybrid methods.

In terms of place illusion and plausibility illusion.

In these studies, participants normally reported a stronger feeling of presence.

Found it easier to use and had improved efficiency and

spatial awareness of the space they explored when they could walk

around in an environment physically, as they do in real life.

Also, in this case, as there is no conflict by signals received by

their visual and vestibular system, it is less likely to cause simulation sickness.

The biggest problem with rear-working NVR

is the limitation of the physical space the user is in.

Firstly, it is hard to make assumptions about how much space

the user would have available when they use your application.

So in order to suit more users specific needs, you might want to think

about ways to make the virtual space for them to navigate relatively small.

For instance, in a lot of the applications in VR, we can have the users

seated in a chair or standing at a relatively fixed position.

With virtual objects in front of them creating a barrier.

For instance, they can be chatting with another person in VR or

they can be driving a car.

Secondly, as users are encouraged

to use their bodies as naturally as possible to explore the virtual world.

There might be some health and safety concerns from the physical world as with

HMDM, the real world is completely invisible.

Some users could get very engaged in the virtual world and

completely forget about the real barriers in the physical world.

Others might be too worried about the fact that they might bump into things in

the real world they can't see and become less engaged in the virtual world.

We like to be able to avoid both, so

high end VR systems which support physical navigation requires users to indicate

the available physical space that are free from obstacles when setting up the system.

And during their VR immersion when they get too close to the boundaries

of this predefined space,

wire-frame barriers will become visible to remind them of the physical barriers.

Here are some cases that VR controllers will also generate a vibration

to warn the user of the potential collision.

Ideally, in order to further improve the experience,

you might want to assign a avatar to the user, so when they look down

where they expect to see their body, they can see a virtual body.

However, it is not always easy to achieve this when the user moves

around the environment.

As even most high-end devices only track their head and hands.

So the system can't really distinguish between when I shift my upper body or

when I actually step to the side.

Because the system does not know for sure what the rest of my body is doing.

We might be able to use machine learning algorithms to learn from

different patterns of upper body movement to predict

what I'm doing with the lower part of my body.

But a more reliable solution is to track our other body parts with

additional trackers which comes with some consumer VR systems.

Or, if you can afford it, you can use a full body motion capture suit to enable

a truthful representation of the user's body movement in the virtual world.

But the problem is that you are then limited to a much smaller range of

potential customers who have access to such a body suit.

[MUSIC]

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