[vtkusers] Rendering fonts crashes OpenGL driver

[Mathieu Malaterre]

Goodwin,

	I try on linux and everything is fine...well looks as if. Anyway a few 
hints, can you try either:

- Use Mesa on windows
- For my ATI card, I am using

   export LIBGL_ALWAYS_INDIRECT=1;

   To force software rendering compare to hardware rendering, do know if 
that works on windows though.

HTH
Mathieu

Goodwin Lawlor wrote:
> Hi All,
> 
> I've narrowed down the crashes with vtkActor2D to rendering fonts. The
> behaviour is strange: 20pt Arial and smaller crashes the OpenGL driver.
> Courier and Times are OK at any size font. Rendering "-" in any font family
> at 20pt and smaller crashes...
> 
> Could anyone take a guess at what's going on? Does the vtk text mapper
> depend on system fonts? It doesn't seems so. Could the fonts be corrupted!?
> Or a bad OpenGL driver.
> 
> Setup:
> Dell Inspiron 8600
> ATI Mobility Radeon 9600 Pro Turbo
> Windows XP
> Latest CVS of vtk
> 
> Thanks,
> 
> Goodwin
> 
> ps:
> 
> This script crashes:
> 
> vtkTextProperty tprop
>  tprop SetFontSize 17
>  tprop SetFontFamilyToArial
> 
> vtkTextMapper tmapper
>  tmapper SetTextProperty tprop
>  tmapper SetInput "example text"
> 
> vtkActor2D tactor
>  tactor SetMapper tmapper
>   [tactor GetPositionCoordinate] SetCoordinateSystemToNormalizedViewport
>   [tactor GetPositionCoordinate] SetValue 0.1 0.1
> 
> 
> vtkRenderer ren
>  ren AddActor2D tactor
> vtkRenderWindow renwin
>  renwin AddRenderer ren
> vtkRenderWindowInteractor iren
>  iren SetRenderWindow renwin
>  iren Initialize
> 
> 
> 
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