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3D stereo display [message #65230] Fri, 20 February 2009 06:00 Go to next message
mapper4u6@gmail.com is currently offline  mapper4u6@gmail.com
Messages: 3
Registered: October 2008
Junior Member
I like to know if anyone knows how IDL can call the 3D graphic card to
display stereo (left/right image, not anaglyph), or call openGL to do
it, or who is interested to do it within IDL?
Re: 3D stereo display [message #65298 is a reply to message #65230] Tue, 24 February 2009 09:46 Go to previous message
rtowler is currently offline  rtowler
Messages: 28
Registered: June 2006
Junior Member
On Feb 24, 8:40 am, "mapper...@gmail.com" <zjwan...@gmail.com> wrote:
> On Feb 22, 11:49 pm, rtow...@gmail.com wrote:
>
>
>
>> On Feb 20, 6:00 am, "mapper... wrote:
>
>>> I like to know if anyone knows how IDL can call the 3D graphic card to
>>> display stereo (left/right image, not anaglyph), or call openGL to do
>>> it, or who is interested to do it within IDL?
>
>> Usually this sort of thing is done in the driver but there is no
>> reason you can't do it in IDL.  I did this a while back with my camera
>> class, a modified serial port dlm, and a hacked pair of LCD shutter
>> glasses.  You don't mention shutter glasses, and if you don't need to
>> sync to an external device such as these it is even easier.  All you
>> really need to do is construct a left and right eye view and either
>> alternate between them or display each to the appropriate "3d display
>> device".
>> glyph
>> google should point you to a few websites that work thru the theory.
>> I'll see if I can dig up that old code...
>
>> -Rick
>
> Thanks Mike and Rick.
> What I am interested in is to use Shutter glasses instead of anaglyph.
> I have got the left and right view, but I do not know how to use IDL
> (or IDL widget_draw) to display it on the 3D display device. So Mike
> if you have this experience, can you give me some information. Or If
> we like to contract this to you, how long and how much it will take?

What 3d display device are you working with? You mention shutter
glasses so you must have one CRT display and a pair of glasses that
plug into it or your PC. Is there an API for the glasses? If you
have the left/right views, you're almost all the way there. All you
need to do is figure out how to operate the glasses. You "open" one
eye on the glasses, draw that view, then close it and open the other,
draw it, and repeat.

Like I said, often this is handled in the display driver, even the
shifting of the view, so you don't explicitly need to do this. Are
you sure this option isn't available? When you say "3d display
device" it sounds like you spent money on an actual system and that
you don't have to do it the hard way.

-r
Re: 3D stereo display [message #65299 is a reply to message #65230] Tue, 24 February 2009 08:40 Go to previous message
mapper4u6@gmail.com is currently offline  mapper4u6@gmail.com
Messages: 3
Registered: October 2008
Junior Member
On Feb 22, 11:49 pm, rtow...@gmail.com wrote:
> On Feb 20, 6:00 am, "mapper... wrote:
>
>> I like to know if anyone knows how IDL can call the 3D graphic card to
>> display stereo (left/right image, not anaglyph), or call openGL to do
>> it, or who is interested to do it within IDL?
>
> Usually this sort of thing is done in the driver but there is no
> reason you can't do it in IDL.  I did this a while back with my camera
> class, a modified serial port dlm, and a hacked pair of LCD shutter
> glasses.  You don't mention shutter glasses, and if you don't need to
> sync to an external device such as these it is even easier.  All you
> really need to do is construct a left and right eye view and either
> alternate between them or display each to the appropriate "3d display
> device".
> glyph
> google should point you to a few websites that work thru the theory.
> I'll see if I can dig up that old code...
>
> -Rick

Thanks Mike and Rick.
What I am interested in is to use Shutter glasses instead of anaglyph.
I have got the left and right view, but I do not know how to use IDL
(or IDL widget_draw) to display it on the 3D display device. So Mike
if you have this experience, can you give me some information. Or If
we like to contract this to you, how long and how much it will take?
Re: 3D stereo display [message #65317 is a reply to message #65230] Sun, 22 February 2009 20:49 Go to previous message
rtowler is currently offline  rtowler
Messages: 28
Registered: June 2006
Junior Member
On Feb 20, 6:00 am, "mapper... wrote:
> I like to know if anyone knows how IDL can call the 3D graphic card to
> display stereo (left/right image, not anaglyph), or call openGL to do
> it, or who is interested to do it within IDL?

Usually this sort of thing is done in the driver but there is no
reason you can't do it in IDL. I did this a while back with my camera
class, a modified serial port dlm, and a hacked pair of LCD shutter
glasses. You don't mention shutter glasses, and if you don't need to
sync to an external device such as these it is even easier. All you
really need to do is construct a left and right eye view and either
alternate between them or display each to the appropriate "3d display
device".

google should point you to a few websites that work thru the theory.
I'll see if I can dig up that old code...

-Rick
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