[vtk-developers] Rendering bugs on Mac OSX when using vtk with gtk

[Sean McBride]

Valerie,

Did you narrow it down to particular graphics card?  Did you try with
ATI cards?  If you send me an executable offlist, I can try to repro
with the various machines here.

Just because it broke in 10.5.7 doesn't mean it's not a VTK bug of
course, but it does seem more likely to be on OS bug.

Sean


On 7/13/09 12:13 PM, Valerie Coffman said:

>Has anybody had a chance to look at this?  This is a very serious bug 
>for us as it makes our software unusable on the latest Mac OS.
>
>I filed a bug report with apple weeks ago, but have not heard anything.  
>It's likely that they just think it is a bug in VTK.
>
>
>
>Valerie Coffman wrote:
>> Dear VTK Developers,
>>
>> I posted this to the vtkusers mailing list, but got no responses.  I 
>> suppose this list is more appropriate, so I'm hoping someone here is 
>> able to help.
>>
>> After the latest Mac OSX update, I noticed a bug with rendering vtk data 
>> embedded in gtk windows.  If I try to render a vtkVolume and a vtkActor, 
>> the vtkVolume is not displayed and the vtkActor is displayed 
>> incorrectly.  For instance, a cone is missing its base.  This does not 
>> happen if the vtk window is not embedded in a gtk window.  It also 
>> doesn't happen when using the same versions of vtk and gtk on a under 
>> Linux with a Linux display.  It does happen if I ssh to a Linux box and 
>> display on the Mac.  (I was unable to check whether the bug appeared 
>> when running on a Mac but displaying in Linux as this resulted in a bus 
>> error.)
>>
>> I am not using gtkglext.  I posted a while back about how to put vtk and 
>> gtk together without gtkglext or gtkglarea: 
>> http://www.vtk.org/pipermail/vtkusers/2008-April/094892.html (see the 
>> script Wrapping/Python/vtk/gtk/noglext.py in the source for vtk 5.4).  
>> In fact, this bug appeared earlier when using gtkglext and went away 
>> when I implemented the fix described in the above link.  Now it has 
>> resurfaced.
>>
>> Here are the details of the latest Mac updates
>>
>> 2009-06-09 13:14:35 -0400: Installed "Digital Camera Raw Compatibility 
>> Update" (2.6)
>> 2009-06-09 13:14:50 -0400: Installed "AirPort Utility Software Update 
>> 2009-002" (5.4.2)
>> 2009-06-09 13:15:07 -0400: Installed "iWork '09 Update 2" (9.0.2)
>> 2009-06-09 13:15:49 -0400: Installed "iTunes" (8.2.0)
>> 2009-06-09 13:15:53 -0400: Installed "iLife Support" (9.0.3)
>> 2009-06-09 13:16:07 -0400: Installed "iDVD Update" (7.0.4)
>> 2009-06-09 13:18:54 -0400: Installed "Mac OS X Update" (10.5.7)
>> 2009-06-09 13:19:26 -0400: Installed "QuickTime" (7.6.2)
>>
>> The relevant version info is:
>> VTK 5.0.4.3 (fink package vtk-py25) (I've also tried VTK 5.4.2 and the 
>> result is the same)
>> GTK 2.16.2-2 (also installed with fink)
>> X11 2.3.3.2 (from http://xquartz.macosforge.org/)
>> pygtk 2.12.1-5 (also from fink)
>> Python 2.5 (fink package number 1:2.5.4-1)
>>
>> I've posted test scripts, data, and pictures here: 
>> http://www.ctcms.nist.gov/oof/renderingbug/
>>
>> There is another discussion of this bug here: 
>> http://lists.macosforge.org/pipermail/xquartz-dev/2009-June/002367.html   
>>
>> Another thing I noticed is that if I try to print out the 
>> vtkRenderWindow, the colormap is set to 0 for the script that uses gtk, 
>> but seems to be set to a real value for the script that doesn't use 
>> gtk.  I don't know if that is the expected behavior or not.
>>
>> Any insights would be greatly appreciated!
>>
>> Thanks
>> Valerie Coffman
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