alice-teacher Binocular depth perception in Alice

Fri Jul 19 17:46:23 EDT 2019

Alice Unity will be incredible.  I teach a Unity class for high school
right now using Google Cardboard.  I tried to take it down to middle school
but the student ability range was to broad.  Using Alice as the scene maker
will make this more of a possibility.

Garth Flint
Technology Coordinator
Missoula Catholic Schools
(406)-531-7497

On Fri, Jul 19, 2019 at 3:29 PM Don Slater <dslater at andrew.cmu.edu> wrote:

> James,
> Thank you for sharing this. This is really cool, and I am looking forward
> to testing this.
>
> Let me also let everyone know that the Alice Project is preparing a
> release of Alice 3 (hopefully October) in which students will be able to
> export their projects into a file format (.a3w) which can then be used in a
> Alice Unity player, which will be released at the same time. If the player
> detects a VR rig, the students will be able to experience the project in
> VR. If not, the Alice project will run as if it is in the Alice
> environment, but through this player.
>
> We demonstrated this capability at CSTA ’19 in Phoenix. The attached image
> shows a user experiencing an Alice project with the Oculus Rift setup. It
> is our intention that we will add all the hooks for all the VR rigs that
> are available, although all the hooks may not be there until the spring.
>
> Let me also emphasize that this version is still Alice 3. If you remember
> the history of Alice, it started as a research tool for rapid prototyping
> of VR as part of Randy Pausch’s research and the Stage 3 research group. We
> are circling back to our roots.
>
> We are excited to be sharing this with you.
>
> All the best,
> Don Slater
>
> Alice Project
>
>
>
>
> On Jul 17, 2019, at 1:12 PM, Vanderhyde, James <vanderhyde at sxu.edu> wrote:
>
> Hello, everyone. I had an idea to make a 3D video using Alice, where the
> user can actually view it in 3D, and it worked pretty well, so I thought
> I’d share. Unfortunately it’s a lot of steps, and I didn’t find a good way
> to automate the process, so I didn’t use it in class. Please take a look,
> and if you think of a way to automate this, it could be very cool.
>
> The best way to view the resulting video is with Google Cardboard or
> similar device on a phone. You can find all the steps and the resulting
> video here:
> http://vanderhyde.us/~james/alice/
>
> I’ll also paste the steps below in this email so you can take a look now.
> Enjoy!
>
> James
> —
> James Vanderhyde
> Assistant Professor and Department Chair, Computer Science
> Saint Xavier University
> 3700 W. 103rd St.
> Chicago, IL 60655
> 773-298-3454
>
> To make a 3D video in Alice, follow the steps below. I used Alice 2 on
> MacOS, but the instructions should be adaptable to other environments.
>
>    1. First, the movie window size in Alice needs be an 8:9 ratio, rather
>    than the default 4:3, because we will use iMovie to make the final product,
>    and iMovie creates 16:9 ratio videos (widescreen). We need two images
>    side-by-side, so an 8:9 ratio will work perfectly (a little taller than
>    wide). You can set this in Alice 2 in the viewing angles in "seldom used
>    properties" on the camera. The vertical viewing angle should be changed to
>    0.75; leave the horizontal viewing angle at 0.67.
>    2. Next, create your Alice movie as usual.
>    3. At the very beginning of your movie, create a duration 0 visible
>    change (e.g. turn light brightness to 0 and then to 1). We will need this
>    to align the timing of the left and right clips. It serves the same purpose
>    as a clapperboard in a regular movie.
>    4. Move the camera 0.05 m left for the viewer's left eye.
>    5. Play the movie, then start the video capture (command-shift-5 on
>    Mac).
>    6. Hit Restart on the Alice window. If you don't see the light black
>    out, hit restart again. Sometimes it's not visible, so you have to keep
>    restarting until you see the light blink.
>    7. Stop the recording at the end of the movie.
>    8. Move the camera 0.10 m right for the viewer's right eye.
>    9. Record the movie again. Make sure you see the light black out at
>    the beginning. When you save the recording, make sure you know which clip
>    is right and which one is left.
>    10. Trim each clip so it begins right after the light turns on. (You
>    can use QuickTime Player on Mac).
>    11. Create a new project in iMovie, and add both clips. Add the right
>    clip first so you know which is which. The one you add first is considered
>    the main clip. Add the left clip so it overlaps with the first clip.
>    12. Line up both clips on the left. Trim the longer clip to the length
>    of the shorter.
>    13. Select the upper clip and choose Split Screen.
>    14. Share the video to a file or whatever you want.
>
> You can watch the exported video in 3D using the "magic eye" trick if you
> make the window small. You can also watch the video using Google Cardboard
> or a similar device if you open the movie on your phone.
>
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