[vtkusers] Offscreen rendering

[John Norris]

Hi,

I cannot for the life of me get offscreen rendering to work.  This is on 
AIX 5.4, VTK from CVS, Mesa 6.5 (compiled with mangling), everything 
compiled with xlC_r.  I've configured VTK with VTK_USE_MANGLED_MESA on, 
OPENGL_gl_LIBRARY set to /usr/lib/libGL.a, MANGLED_MESA_LIBRARY set to 
the Mesa lib I compiled, and MANGLED_OSMESA_LIBRARY set to the OSMesa 
lib I compiled.

I can compile and run the attached program, and everything works fine. 
A window pops up, and a nice tiff file is created.  But if I run it with 
the "-os" option, the tiff file is just a black square.

I've been working on this for days, searching the mailing list and 
trying different compile options, but to no avail.

Any help would be greatly appreciated.

Thanks!
John
-- 
John Norris
Research Programmer
Center for Simulation of Advanced Rockets
http://www.uiuc.edu/ph/www/jnorris
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