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Forum Bug Reports fibers that disappear

fibers that disappear
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12:35 pm
June 6, 2010


moncho.x

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Sometimes when I changes the kind of render any fibers disappear, for example in render "line" all fibers are seen, but I changes to render "tube" any fibers disappear.

any comments?

 

Regards!!

12:53 pm
June 7, 2010


Ruopeng

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Hi,

First, try turning off "Object Annotations" option in "Overview->Settings". That could eliminate a potentail display bug.

If that does not work, I can only wild-guess that maybe you're displaying too many tracks at the same time? Do you have a decent graphics card on your system? How about try display just a small track bundle and see if that works?

Best,

Ruopeng

7:38 am
June 8, 2010


wtriplett

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Hello,

I have seen this too and chalked it up to video capabilities of our graphics device. Usually I can get them to display in tube mode by using the spline_filter tool on them.

 

12:23 pm
June 10, 2010


Ruopeng

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Post edited 12:26 pm – June 10, 2010 by Ruopeng

JFYI, spline_filter can reduce the number of line segments in a track significantly (more than half in common cases) while losing none/little spatial resolution on the track. Thus, it will also reduce the render load to the same amount. It is recommanded to use it all the time.

Ruopeng

11:58 pm
June 10, 2010


moncho.x

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Hi, foremost thanks for their answer.

 

about the question of Ruopeng, I only display about 45 tracks, and my graphics card is NVIDIA Geforce 9400M (I consider it decent). also I tried turning off "Object Annotations" and the problem continue.

triplet, What is the spline_filter tool? How I can use the spline_filter tool?

 

Best,

Moncho.x

9:41 am
June 11, 2010


wtriplett

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moncho.x said:

triplet, What is the spline_filter tool? How I can use the spline_filter tool?

 

Hi, the spline_filter tool is part of the Diffusion Toolkit package. It is located at different places depending on which computer platform you are on. We use mac in our lab and it is located in

/Applications/DiffusionToolkit.app/Contents/MacOS/spline_filter

It can really help to visualize large data sets. In fact, we would not be able to open up some of our streamline data files without it.

http://trackvis.org/dtk/?subse…..ine_filter

Bill

4:56 pm
June 14, 2010


moncho.x

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thanks Bill,

I will check my file of tracks with spline_filter.

 

Regards,

 

6:47 pm
June 18, 2010


moncho.x

Member

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Hi again,

 

The fibers continue disappeared, in the next link I put the file with the fibers that disappear.

 

http://rapidshare.com/files/40…..2.trk.html

 

I expect that you help me!!

 

Thanks to everybody.

 

Best,

Moncho
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