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<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>Hi, I need to develope a 3D
application with stereo capabilities using VTK.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>I’m using an nVidia
GeForce 6200 with shutter glasses from eDimensional and I have a standard CRT
monitor.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>This is my hardware:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>-Pentium IV 1.7 GHz<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>-512 Mb RAM<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>-CRT monitor (resolution
1024x768 / 800x600)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>-GeForce 6200 video card
(Driver version: 7.8.0.1)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>-eDimensional 3D glasses,
video synchronization adapter and infrared transmitter (these glasses are a
nVidia 3D stereo certified product)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>-eDimensional drivres:
71.89_3dstereo.exe, 71.89_win2kxp_english.exe<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>This is the sofware:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>-OS: Windows XP SP2<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>-Application build in Borland
C++ Builder 6.0 with VTK installed.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>First I enable the stereo
property of the video card and I put on the shutter glasses.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>Then I run the medical test
image for stereo (a demo image from nVidia) an it works very well.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>The problem is when I set VTK
for stereo capabilities, the image looks like a shifted copy of the right eye
(or left eye).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>I see a parallel copy of the
right image (or left image) shifted, but not with the correct perspective or
eye angle.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>I’m usig the following
code in C++<span style='mso-spacerun:yes'> </span>Builder 6.0:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>vtkWindow1->GetRenderWindow()->SetStereoCapableWindow(1);<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>vtkWindow1->GetRenderWindow()->StereoRenderOn();<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>vtkWindow1->GetRenderWindow()->SetStereoTypeToCrystalEyes();<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>vtkWindow1->GetRenderWindow()->StereoUpdate();<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>When I write:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>vtkWindow1->GetRenderWindow()->SetStereoTypeToLeft();<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>vtkWindow1->GetRenderWindow()->StereoUpdate();<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>or<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>vtkWindow1->GetRenderWindow()->SetStereoTypeToRight();<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>vtkWindow1->GetRenderWindow()->StereoUpdate();<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>or<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>vtkWindow1->GetRenderWindow()->SetStereoTypeToAnaglyph();<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>vtkWindow1->GetRenderWindow()->StereoUpdate();<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>it works very well.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>Using these three last modes
I modify the eye angle with
“vtkWindow1->GetRenderer()->GetActiveCamera()->SetEyeAngle(MyVisualAngle)”
and it works very well too. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>But the same code with the
“SetStereoTypeToCrystalEyes()” function<span
style='mso-spacerun:yes'> </span>doesn’t work.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>Where is the problem?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>Could be the video card or
the shutter glasses? Is there in the drivers? <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>Do I need a quadro card for
this application? or is there something wrong in my code?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>Regards,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;font-family:Arial;mso-ansi-language:EN-GB'>Santiago Rodríguez</span></font><span
lang=EN-GB style='mso-ansi-language:EN-GB'><o:p></o:p></span></p>
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Version: 7.1.394 / Virus Database: 268.8.1/355 - Release Date: 02/06/2006<BR>
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Checked by AVG Free Edition.<BR>
Version: 7.1.394 / Virus Database: 268.9.8/381 - Release Date: 03/07/2006<BR>
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