GameDev Conference 2018 Олександра Радченко "Система адаптації до Motion sickness – невід’ємна стадія розробки віртуальної реальності"

1. The adaptation program for motion sickness is
an essential stage of Virtual Reality development
Alexandra Radchenko, Head of Research Department

2. WHO WE ARE?
PLAYTESTIX is a global gaming market research
company with focus on player experience analysis
and user testing
Our team consists of experts:
Gaming analysts, researchers, recruiters,
interviewers, moderators, tech support, supervisors,
marketing specialists and PMs
Over last 5 years we have studied more than
500 games for more than 150 partners
from USA, EUROPE, ASIA, CIS
5 years
experience
Over 500 games
and apps
International
projects in 18
countries

3. LET`S SPEAK ABOUT:
• VR Market
Main market trends
Success and problems of development
Impact on the human health
• Cases. Audience and UX. Methodology
VR influence. UX factors.
Who is predisposed, what are the reasons?
• Adaptation and minimization of the discomfort
How many people feel discomfort?
Is physiological and VR correlation?
Adaptation is it myth or reality?
• Solutions. VR game secrets
Components of the success VR game
Target devices definition
Recommendations on art, mechanics, control
Perfect audience VS real audience
01
02
03
04

4. VR MARKET.
TRENDS

5. 1,2
2
3
5,8
8,5
0,8
1,8
4,5
8,3
15,6
1,6
2,6
4,6
8,6
16,3
2016 2017 2018 2019 2020
The Worldwide Virtual Reality Market, $ Bl
Console Mobile PC
VR and AR isn`t just a thing, it will be everything
Based on: Digi-Capita. https://www.statista.comhttps://www.superdataresearch.com/
2017
• Software
(content) - 27%
• Hardware - 73%
2020
• Software
(content) - 52%
• Hardware - 48%
27%
19%
16%
14%
8%
16%
Games
Video content
Social media
Interactive
entertaiment
Attractions
Other
VR
Software

6. Samsung VR Gear
21% market
Google cardboard
Leader in quantity
PlayStation VR
18,8% market
HTC Vive
8,4% market
Oculus rift
4,4% market
Leaders
and
investors
https://www.fastcompany.com/
Based on https://www.digi-capital.com

7. VRAR is the way of new development of vitally
important spheres
)
Social
Education Healthcare
Enterprise
Retail
Military&
defense
Digital
Entertainment

8. What are the possible negative effects on human?
Influence on health (motion
sickness, vision problems)
Uncomfortable
long session
)
Self-harm (falling,
crash into objects
Addiction, loss of
time and social sense

9. CASES. AUDIENCE
AND UX

10. 01. Device & Game
selection.
Methodology.
02. VR Playtest: 3 games
150 sessions; 40 minutes
03. Adaptation
effectiveness
04. Analytics &
research
Sony PlayStation – RPG & Horror
Oculus - Simulator, arcade game
HTC Vive - Race
Sample selection.
Questionnaire, personal
interview, observation.
Separation by impact types,
efficiency
Main stages of the research
Identify field correlations.
Desk research.

11. How it was. Let`s watch video.

12. VR experience
59% - never
28% - several
5% - often
M 75%
F 25%
11-35+
years
CIS
Portrait of
respondent
VR pleasure
51% - very like
30% - like
15% - neutrally
4% - rather no
VR availability
9% - have at home
53% - don`t want to buy
37% - want to buy
75
sample

13. 16% refused
to continue
32%
interrupted
52% felt
discomfort
61% (SP) 22% (Oculus)
17% (HTC)
People behavior & game perception

14. 11%
61%
28%
14%
71%
14%
25% 25%
50%
UP 5 MIN 6-10 MIN 11-15 MIN
Time of the gaming session interruption
Resident Evil (Sony Playstation 4) Eagle Flight (Oculus Rift) Project Cars (HTC Vive)
30%
39%
28%
33%
11-17 YEARS 18-25 YEARS 26-35 YEARS 35+ YEARS
Interruption by age, %
38%30%
Critical point of discomfort. Who is predisposed?

15. Different devices - different feelings of discomfort
OTHERS:
• Headache - 7%
• General weakness - 2%
• Fear - 1%
Dizziness - 29%
Nausea - 29%
Resident Evil (Sony)
• Nausea 34%
• Dizziness 32%
• Hot / discomfort mask 16%
• Eyes discomfort 13%
• General weakness 3%
• Fear 3%
Race (HTC Vive)
• Eyes discomfort 50%
• Dizziness 20%
• Hot / discomfort mask 20%
• Nausea 10%
Eagle flight (Oculus)
• Dizziness 33%
• Headache 24%
• Nausea 24%
• Eyes discomfort 19%
Hot/discomfort
mask – 11%
Eyes
discomfort –
21%

16. ADAPTATION
AND
DISCOMFORT
LEVELING

17. Motion sickness VS Seasickness
The vestibular apparatus receives a signal that
it moves, but the brain doesn`t feel motion.
The effect is the opposite, human is in a closed
cabin and body senses movement, but eyes
don`t see it.

18. The causes of discomfort: universal or individual?
)
Resident Evil (Sony PlayStation) Eagle Flight (Oculus Rift) Project Cars (HTC Vive)
Abrupt turns
Art
Unrealistic
Hot
Uncomfortable
device
Hard control
FPS

19. • Frequency of
VR use
• Health status
• Similar actions
in real life
• Propensity to motion
sickness
• Lifestyle (sport)
• Food intake
• Game experience
• Preferences of genres
• Mood, emotions
• Enjoy/dislike game
Low correlation Average correlation High correlation
Physical human characteristics, which affect on the
VR sensations

20. 0%
2%
4%
6%
8%
10%
12%
5 MIN 10 MIN 15 MIN 20 MIN
Time and sensation connection (5,10,15,20 minutes)
Dizziness Nausea Discomfort for the eyes Hot / discomfort mask Headache
Adaptation is a reality - gradualness is the key
Need to
take
break
NO adaptation (without
break)
Use
adaptation
methods

21. • sitting play
• time intervals (critical
point)
• ventilator(fan)
• black/green tea
• ginger products
• mint chewing gum / candy
• mineral water (salty)
• grid mode
• vignette mode
• fixation point (nose, beak)
• turn off turning joystick
• turn off helmet control
• change of game (different
control mechanics)
INgame methods OUTgame methods
Ways of adaptation and minimization. MIX it!

22. VR GAME
DEVELOPING
SOLUTIONS

23. Success puzzle of VR game development
Adaptive
hardware
Game
improvement
Right target
audience
Adaptation

24. 2017-2018
Oculus Santa Cruz
• New controllers with infrared LEDs
• The play areas can scale
HTC Vive Pro
• 3K resolution - 2880 x 1600 to be precise
- built-in headphones
new nose flap
• Two cameras on the front
Define target
devices:
• Price niche
• Popularity on the
market/country
• Technical
specifications
(Resolution, Refresh Rate (Hz),
Field of View (degrees),
Controls, Hardware/Sofware
Platform)
Oculus Go
• It features 3DoF tracking in the headset
and a remote controller
• Next generation" lenses that'll reduce
glare and improve the field of view
Lenovo Mirage Solo
• WorldSense - fully wireless
and smartphone-free
• 2560 x 1440 resolution and 110
field of view
• 6DoF tracking, the play space is only
5 meters in diameter
• special eye-tracking technology
• 1440p display; a 100+ degree field
of view
• 70fps frame rate; and eye-tracking
measured at 120fps
Fove 0Razer OSVR HDK 2
• without technical (software and
hardware) limitations for
developers
• 2160 x 1200 dual OLED display
• headset still remains open source
Pimax 8K
• Headset is aimed at solving two VR
problems: motion sickness and not-
so-great field of views
• 200-degreee field of view
• Two 3840 x 2160 displays

25. Adaptive hardware helps to feel realistic
Hands
Feet
Haptic
Total (motion sickness minimization)

26. ART CONTROL
GAMEPLAY
Use Q/E in games
when available
(teleport)
Reduce the speed of
character
Customize the lens (eyes
calibration)
Move in the view
direction
Firmware - tutorial on
adaptation
To use fixation points
Decrease pixelation
Eliminating sharp turns
Don’t show the loading of word
textures
Narrative for time intervals
(pauses)
Balance Complicating
Soft colors

27. )
Use right game mechanics base
on platform
Define your Target Audience and
Do playtests on audience
Perfect target audience – just
a few
Real target audience – use
right methods to expand
Include Adaptation Programs

28. THANKS FOR YOUR ATTENTION!
ANY QUESTION ?
Alexandra Radchenko
AR@playtestix.com
+380935804106