VR Games & Experiences · Unity Tips • Keep dynamic meshes < 300 simple vertices so they can...
Transcript of VR Games & Experiences · Unity Tips • Keep dynamic meshes < 300 simple vertices so they can...
Patrick O’Luanaigh | @patrickol
Richard ‘fabs’ Fabian | @raspofabs
VR Games & Experiences
PC Gear VR Gear VR &
Cardboard Console
& PC
The WHY behind the Dos and Don’ts of VR
“You Hear a Lot of People Say…”
Make more informed decisions…
?
Frame of
Reference
Wrong Frame of Reference
Frame of Reference
= Sickness!
Frame of Reference
Natural Reaction
Frame of Reference
Smash Hit
• Linear movement
• No acceleration
• Acceleration
• Sudden, jerky rotation
VR Rollercoasters
On-Rails Movement
30
Framerate
30 60
Bandwidth
10+GB/sec
200+GB/sec
Stats ASTC
ECT2 4bbp plus alpha
ASTC 0.8bpp to 8bpp
adaptive
ETC 4bbp
Framerate
Fram
erat
e
Fram
erat
e
Samsung Gear VR
=
Support one device
Google Cardboard
=
Support all devices!
Mip-mapping
Just Turn it on!
Match Art to Technical Limitations
User Interface VR Display
Close Ups Are Cool!
Close Ups
but don’t make people focus
Close Ups
Visual Reaction Time
100ms 250ms
Reacting to visuals Noticing visual motion
<100ms eliminates motion sickness
Comfortable
BUT
Disorientating
Teleport
Darkness = slower reaction times.
Key Learnings
Trampolines Pick-Ups
0.15 sec 0.25 sec 0.17 sec
Other Senses ?
Binaural / 3D Stereo Ambient
MONO
Audio Channels
Binaural – not always the best solution…
Good Binaural
Bad Binaural
?
Ambient
Binaural audio is expensive
Vive demo room with cubes
Draw Calls!
Perfect Beach Image
Unity Tips
• Keep dynamic meshes < 300 simple vertices so they can dynamically batch.
• Use very few skinned meshes.
• Use texture atlases where possible, so you can use shared materials
• Stick to a small number of materials so more meshes can be batched.
• Avoid real-time shadowing - objects that use real-time shadowing can't be batched.
Merge your meshes
Be aware of the camera
Disconnect
Hand is the Racket
Your Hands?
VR is Science!
Ask Why!
Slide unintentionally left
BLANK
Experiment!
Let's start to be scientists about this, work together, and build a better understanding of all
the elements of VR.!
Summary
questions? Any |