Playtesting 1

Date: 2009-02-09

Duration: 1100-1800

Guests: ETC students

Samples: 12

Purpose: We want to test our IR glasses and the 3D environment. We want to know that if they are more convenient, more natural and easier to use by comparing to the HMD helmet.

Survey

1. Are the IR glasses inconvenient? Do they bother you?
Comfortable	44.4%
Not so good, but they are fine.	55.6%
Inconvenient	0
2. Do the IR glasses feel natural?
Yes	30.0%
No	70.0%
3. Does the unsteadiness of the scene bother you?
A lot	33.3%
A little	33.3%
Not at all	33.3%
4. Do you understand how your movement changes the scene in front of you?
Yes	100%
No	0
5.  Have you used any HMD (Head-Mounted Display) product before?
Yes	100%
No	0
6. Comparing our technology with the HMD, which one makes you feel better?
HMD	45.5%
Crayon 3D	45.5%
Same	9.0%

Feedback

-       Without zoom in/out effects

-       Kind of lag, it seems some frames are gone (not continuous)

-       Need to see the drawing thing

-       Feel dizzy, hope it could be more continuous

-       Use 2 cameras

-       Could you increment the amount of movement?

-       It would be nice to have rotation.

-       Have a crosshair to see if you can focus on some areas and to see how steady it is

-       The “skip” when the “glasses” is out of view breaks the experience.

-       Change the 3D scene

-       Why does the camera sometimes move in the wrong way?

-       Range of the detection should be wider

-       Rotation function needed

-       Latency matters

-       2 modes: create mode & view mode

-       Why should we know where the user is?

-       It’s difficult to draw when moving

-       Both head and hands will affect the calculation of coordinates

-       It would be better to move the model instead of moving the head

-       It is not that sensitive, not real
i.e. if you rotate 30 degrees, it seems rotate only 10 degrees on the scene

-       Even if it is a small movement, make it move a lot in the scene

-       Use a numchunk to rotate the scene

-       Use HMD trackers

-       What if I want to build something further in the scene?

-       The demo scene is too small

-       No one actually wants to move forward

-       Unnatural, use image processing to recover

-       Adjustable stand for camera in order to fit people with different heights

-       Can it be a multiplayer platform

-       Create a table of different heights mapping to camera’s height

-       Don’t want to move when drawing

-       Vanishing point, perspective view

-       People tend to rotate first

-       Use 3 cameras

-       Not as fast as HMD, the range is too short

      -      Add sounds for the demo

Conclusion:

Through this playtest, we believe that people understand how the IR glasses are working. But the range of the moving area is limited. We will try to move the camera position to detect wider area for users . In addition, to add the rotate and move function. We also realize that it is hard for users to create models and to view at the same time. Besides, we still have to solve the dizzy and lag problems.

Photos: