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<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>When I enable the stereo mode (anaglyph) on a volume
rendered (with ray casting) image, I can see the stereo only with positive
parallax (I can see the volume “inside” the screen, I can see its depth),
but I want it comes out from the screen (negative parallax, the volume is “outside”
the screen).<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'>With positive parallax the image from the left eye perspective
is on the left of the screen, and right eye’s one is on the right, but
there is no way to have a negative parallax (the image from the right eye perspective
on the left side and vice versa).<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'>Setting the EyeAngle to a negative value is not a
solution, because the right eye will see the image from the left eye perspective
and vice versa, while the goal is to see the image from the right eye perspective
on the left of the view plane (and vice versa).<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'><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'>I believe this is a limit in VTK, I’m trying to
solve it moving the focal point in a scene (moving the focal point toward the
camera gives a negative parallax view), but when I rotate the camera I have to recompute
the correct focal point position.<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'><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'>I’m sure there is another way to solve this
problem, as example I could translate the view plane beyond the object during
the ray casting, but I don’t know if this is possible.<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'>I’m waiting for an illuminating advice…<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'><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'>Valeria<o:p></o:p></span></font></p>
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