Dear Mentors:

Merry Christmas and Happy New Year!

The attached are two files for rendering two drifting
gratings to left/right eyes separately.  Two problems
from them urgently need to be solved.  (I posted
similar files showing this problem before).

1.  Each eye should always view its allocated image
only. However,  periodically there are increasing
number of flicker gratings appearing on the image
rendered to one eye, then the other eye, contaminating
the presentation.  Some one mentioned to me that this
was a bug and could be fixed in the next release of
J3D.  If so, I hope this post could remind you the
existance of this bug.  This problem is lethal to my
experiment so please DO get rid of it. When can I
expect the coming out of the new release?

2. Ghost images:  Each eye can also view the faded
image rendered to the other eye.  This is most obvious
for green images and nearly not seen for red and blue
ones.  However, I must use the green images without
ghosts in my experiment.  I know this problem is
related to the persistence of the phosphor.  However,
I want to know whether I can minimize the ghost image
in programming (ultra-short persistence monitor is too
dear).  As the default value of
view.getMinimumFrameCycleTime() = 0, there seems not
possible to minimize the ghost image by handling
view.setMinimumFrameCycleTime). Is there any other way
to reach my purpose?

I sincerely thank you for any suggestion.




=====
Guang Bin Liu, PhD
BiReme System Pty. Ltd.
Australia
Phone:  61 7 3365 4072
Fax: 61 7 3800 5268

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Attachment: BrTestGratings.java
Description: BrTestGratings.java

Attachment: RotateGrating.java
Description: RotateGrating.java

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