[Paraview] Rendering bug in ParaView-CVS

[Michael Wild]

It actually the data set you gave me for testing the Ogg/Theora stuff.  
I just noticed that this only happens with your data set (I do not  
have such small stuff normally ;-))

It really seems to be the size. If I scale with a factor of 35,  
everything is fine. All smaller integer scaling factors result in this  
effect (more pronounced the smaller the factor).

Michael


On 14. Aug, 2009, at 14:36, Dominik Szczerba wrote:

> Can you post your dataset for a test?
>
> I have observed a similar problems with whole actors disappearing  
> (the same way, as if gradually cut by something) for very small  
> datasets. I suspect this may have to do with single precision  
> accuracy somewhere.
>
> - Dominik
>
>
> Michael Wild wrote:
>> Hi all
>> In current CVS there seems to be a rendering problem with the   
>> crosshairs displayed at the rotation centre. Whenever the x-y plane  
>> is  becoming close to normal to the view-vector (i.e. parallel to  
>> the  camera-plane), these markers simply disappear. Funny thing is,  
>> they  seem to be gradually "cut off" from left to right (or right  
>> to left,  depending on which way x-y is tilted).
>> To illustrate the problem, I created a small animation which  
>> sweeps  the camera from left to right: https://www.ifd.mavt.ethz.ch/people/wild/personal/files/sweep.mp4
>> - The first frame shows the partially cut-off crosshairs
>> - As the x-y plane becomes close to parallel with the view-plane,  
>> it  completely disappears
>> - Towards the end, the crosshairs gradually appear again
>> I see this problem both on Mac OS X 10.5.7 and OpenSUSE 10.3.
>> Am I the only one with this issue?
>> Michael
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