Homework - due Friday 11/10 at 9pm Chicago time
Microsoft's research projects is Holoportation -
Given what we
are going to talk about this week in collaboration, and what we
have discussed previously in regards to tracking and cameras and
interaction, and given your experience playing with the holoLens
back at the beginning of the class, give your critical analysis of
this work in the typical homework webpage writeup.
People have been
sharing virtual worlds of different kinds for quite a while now
participants are not co-located then more infrastructure is
needed. In this case each participant is in their own virtual
world (whether via HMD or a large display) and is connected via
a server to other participants sharing the same space.
Participants have avatar bodies - representations of their
tracked selves in the virtual world for others to see - and
voice (and / or video) is streamed between the participants.
Virtual Temporal Bone - full body avatars
would get in the way of this educational environment so only
different coloured pointers are used showing where the user's
tracked wand is in the space. Audio connections between the
remote sites allow the doctor to explain the anatomy and
students to ask questions, while being able to point at what
they are talking about. This kind of collaboration works fine
in any VR display.
CALVIN - simple articulated avatars were used in this design
environment that encouraged people to work at different scales
to set up a configurable room. Tracking the head and hand of
the user and providing an audio link allowed people to see
where each other were looking and pointing. This kind of
collaboration works fine in any VR display.
NICE - more articulated avatars in an educational setting -
TIDE - pointers with static photographs
attached. One issue with pointers (and avatars) is knowing who
is who. Attaching a name to a pointer is one solution where
you can quickly talk to the person with the appropriate
pointer since you see their name (assuming a shared character
set). If you already know the people in the collaboration you
can use photos to identify the pointers.
Round Earth - participants in a shared experience may not
have the same capabilities in the shared world. Here one
person was on the surface of a small asteroid moving forward /
back / left / right, while the other orbited above the
Audio as the most important channel
Video as a window, video as the avatar, video for just the
You can also scan people in and have 3D realistic, but not mobile, 'statue' avatars
You can also get
yourself scanned today in a 3D scanner and generate an articulated
avatar of yourself
Some more avatar bodies:
- you may want to choose one that shows where you are from
- another to make you look a bit more 'professional' - note the virtual 'nametag' hovering over the avatar to help identify who this is and where he/she is looking
Another issue to keep in mind when you have multiple avatars in a space is whether they will collide with each other and/or the walls and objects in the space. Trying to get a bunch of people moving down a compact hallway can be extremely challenging for people - think about a group of people all trying to get off an elevator at the same time.
collaborative VR across continents is rather easy to do
technologically, somebody has to stay late or come in early to
collaborate synchronously with people on the other side of the
planet. Sometimes asynchronous collaboration is better, but how do
you coordinate your work?
One way is to
record your voice and gestures in the virtual world and then allow
others to play them back later on
Virtual Harlem / V-Mail