Looks like you missed "reply all"<br><br><div class="gmail_quote">On Tue, Feb 14, 2012 at 10:00 AM, Stephan Rogge <span dir="ltr"><<a href="mailto:Stephan.Rogge@tu-cottbus.de">Stephan.Rogge@tu-cottbus.de</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><u></u>
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<p dir="LTR"><span lang="de"></span><span lang="en-us">Hello,</span></p>
<p dir="LTR"><span lang="de"></span><span lang="en-us"></span></p>
<p dir="LTR"><span lang="en-us">@Aashish: Yes.</span><span lang="de"></span><span lang="en-us"> To override it with a state file makes</span><span lang="de"></span><span lang="en-us"> a lot sense to me.</span><span lang="de"></span><span lang="en-us"> <font face="Wingdings" size="3">J</font></span></p>
</div></blockquote><div>Great, hopefully soon. We will update you regarding this. </div><div><br></div><div> <span lang="en-us">My question is not to have direct acces</span><span lang="de"></span><span lang="en-us">s</span><span lang="de"></span><span lang="en-us"> on the</span><span lang="de"></span><span lang="en-us"> eye</span><span lang="de"></span><span lang="en-us"> angle</span><span lang="de"></span><span lang="en-us"> but</span><span lang="de"></span><span lang="en-us"> whether it is</span><span lang="de"></span><span lang="en-us"> consider</span><span lang="de"></span><span lang="en-us">ed in the future</span><span lang="de"></span><span lang="en-us"> during off center projection computation.</span></div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><p dir="LTR"><span lang="en-us"></span></p>
<p dir="LTR"><span lang="de"></span><span lang="en-us">We both had a discussion here in the mailing list relating head tracked projection computation.</span><span lang="de"></span><span lang="en-us"> Since this time I was able to get some practical experiences and saw, that I really need a way to control the</span><span lang="de"></span><span lang="en-us"> convergence in stereo mode. Especially when objects came out of screen it is strange to focus on those objects when my</span><span lang="de"></span><span lang="en-us"> convergence</span><span lang="de"></span><span lang="en-us"> point</span><span lang="de"></span><span lang="en-us"> lies</span><span lang="de"></span><span lang="en-us"> in infinity. To work</span><span lang="de"></span><span lang="en-us"> around</span><span lang="de"></span><span lang="en-us"> it would be great to use</span><span lang="de"></span><span lang="en-us"></span><span lang="de"></span><span lang="en-us"> e.g.</span><span lang="de"></span><span lang="en-us"> the 3D focal point and a</span><span lang="de"></span><span lang="en-us">pply the angle automatically in respect to the</span><span lang="de"></span><span lang="en-us"> head</span><span lang="de"></span><span lang="en-us"> position.</span><span lang="de"></span><span lang="en-us"> The current computation implementation uses an parallel approach.</span></p>
</div></blockquote><div>I see what you are saying. Most of the implementations of stereo would ignore eye angle. Do you have any technical documentation on this? Also I cc'd Bill. I will follow up with you in another email (offline). Not sure if we can get this done in our current funding (most likely not) but at least we can have a quick discussion. </div>
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<p dir="LTR"><span lang="en-us">@</span><span lang="de"></span><span lang="en-us">Nikhil</span><span lang="de"></span><span lang="en-us">: That‘s sounds great.</span><span lang="de"></span><span lang="en-us"> <font face="Wingdings" size="3">J</font></span></p>
<p dir="LTR"><span lang="en-us">Thank you very much for your</span><span lang="de"></span><span lang="en-us"> quick response.</span></p></div></blockquote><div>Thanks for trying our latest code!</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p dir="LTR"><span lang="en-us">Regards</span></p>
<p dir="LTR"><span lang="en-us">Stephan</span><span lang="de"></span><span lang="en-us"></span></p>
<p dir="LTR"><span lang="de"></span><span lang="de"></span><span lang="en-us"></span></p>
<p dir="LTR"><span lang="de"><b></b></span><span lang="de"><b></b></span><b><span lang="en-us"><font face="Tahoma">Von:</font></span></b><span lang="de"></span><span lang="de"></span><span lang="en-us"><font face="Tahoma"> Aashish Chaudhary [<a href="mailto:aashish.chaudhary@kitware.com" target="_blank">mailto:aashish.chaudhary@kitware.com</a>]<br>
</font></span><span lang="de"><b></b></span><span lang="de"><b></b></span><b><span lang="en-us"><font face="Tahoma">Gesendet:</font></span></b><span lang="de"></span><span lang="de"></span><span lang="en-us"><font face="Tahoma"> Dienstag, 14. Feb</font></span><span lang="de"></span><span lang="de"><font face="Tahoma">ruar 2012 15:26<br>
</font></span><span lang="de"><b></b></span><span lang="de"><b><font face="Tahoma">An:</font></b></span><span lang="de"></span><span lang="de"><font face="Tahoma"> Stephan Rogge<br>
</font></span><span lang="de"><b></b></span><span lang="de"><b><font face="Tahoma">Cc:</font></b></span><span lang="de"></span><span lang="de"><font face="Tahoma"> Nikhil Shetty; <a href="mailto:paraview@paraview.org" target="_blank">paraview@paraview.org</a><br>
</font></span></p><div><div class="h5"><span lang="de"><b></b></span><span lang="de"><b><font face="Tahoma">Betreff:</font></b></span><span lang="de"></span><span lang="de"><font face="Tahoma"> Re: [Paraview] Possible Bugs in CAVE mode??</font></span></div>
</div><p></p><div><div class="h5">
<p dir="LTR"><span lang="de"></span></p>
<p dir="LTR"><span lang="de">Hi Stephan, </span></p>
<p dir="LTR"><span lang="de">On Tue, Feb 14, 2012 at 9:17 AM, Stephan Rogge <</span><a href="mailto:Stephan.Rogge@tu-cottbus.de" target="_blank"><span lang="de"><u><font color="#0000FF">Stephan.Rogge@tu-cottbus.de</font></u></span><span lang="de"></span></a><span lang="de">> wrote:</span></p>
<p dir="LTR"><span lang="de">Hi,<br>
<br>
yeah. It does help. But honestly I do have some doubts that this is the best<br>
way to provide eye separation control. Since PVX is<br>
used only at startup this parameter is fixed and all PV scenes running with<br>
that configuration have to use it. In my case I use<br>
different scenes with different scales (cm or m). I cannot provide one eye<br>
separation for all scenes.</span></p>
<p dir="LTR"><span lang="de"></span></p>
<p dir="LTR"><span lang="de">True. We talked about it. I guess we can provide an option to override, meaning if you have it in state file, it will be used and if not it will fall back to pvx and finally to default. Does this sounds reasonable? </span></p>
<p dir="LTR"><span lang="de"></span></p>
<p dir="LTR"><span lang="de">And to use one<br>
configuration file for each scale of scenes feels very cumbersome. In my<br>
opinion the state file is a better place for that<br>
parameter.<br>
<br>
BTW: Is it planned to modify OffCenterProjection computation to consider the<br>
eye angle?</span></p>
<p dir="LTR"><span lang="de"> </span></p>
<p dir="LTR"><span lang="de">No. Eye Angle is used for a different method for calculating projection. But I am curious, how would you like to use eye angle? </span></p>
<p dir="LTR"><span lang="de"></span></p>
<p dir="LTR"><span lang="de"><br>
Best regards,<br>
Stephan<br>
<br>
Von: Nikhil Shetty [mailto:</span><a href="mailto:nikhil.shetty@kitware.com" target="_blank"><span lang="de"><u><font color="#0000FF">nikhil.shetty@kitware.com</font></u></span><span lang="de"></span></a><span lang="de">]<br>
Gesendet: Dienstag, 14. Februar 2012 14:55<br>
An: Stephan Rogge<br>
Cc: </span><a href="mailto:paraview@paraview.org" target="_blank"><span lang="de"><u><font color="#0000FF">paraview@paraview.org</font></u></span><span lang="de"></span></a><span lang="de"><br>
Betreff: Re: [Paraview] Possible Bugs in CAVE mode??</span></p>
<p dir="LTR"><span lang="de"><br>
Hi Stephan,<br>
<br>
There was a slight change in that we can now specify eye separation in the<br>
pvx configuration file. You can set the eye seperation as.<br>
<br>
<pvx><br>
<Process Type="client" /><br>
<Process Type="server"><br>
<EyeSeparation Value="0.065"/><br>
<Machine Name="Front"<br>
.....<br>
<br>
Hope this helps<br>
<br>
Regards<br>
-Nikhil<br>
<br>
On Tue, Feb 14, 2012 at 8:48 AM, Stephan Rogge <</span><a href="mailto:Stephan.Rogge@tu-cottbus.de" target="_blank"><span lang="de"><u><font color="#0000FF">Stephan.Rogge@tu-cottbus.de</font></u></span><span lang="de"></span></a><span lang="de">><br>
wrote:<br>
Hello (again),<br>
<br>
regarding the cave stereo issue I was able to put an debug message into the<br>
vtkCamera and noticed that EyeSeparation is an incredibly small value<br>
(1E-332).<br>
It seems that somewhere the eye separation value is lost which results in<br>
two<br>
identical projection matrix and this yields a monocular vision. That would<br>
explain why stereo is not working....<br>
<br>
@Nikhil, if I get you right, you are involved in the VR development of PV?<br>
<br>
Thanks,<br>
Stephan<br>
<br>
<br>
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<p dir="LTR"><span lang="de"></span></p>
<p dir="LTR"><span lang="de">--<br>
| Aashish Chaudhary<br>
| R&D Engineer <br>
| Kitware Inc. <br>
| </span><a href="http://www.kitware.com" target="_blank"><span lang="de"><u><font color="#0000FF">www.kitware.com</font></u></span><span lang="de"></span></a><span lang="de"> </span></p>
</div></div></div>
</blockquote></div><br><br clear="all"><div><br></div>-- <br>| Aashish Chaudhary <br>| R&D Engineer <br>| Kitware Inc. <br>| <a href="http://www.kitware.com">www.kitware.com</a> <br>