[vtkusers] No Access to vtkgl::GenBuffers (PBO)

[eugen]

Hi,
I'm trying to speed up vtkOpenGLVolumeTextureMapper3D by using the OpenGl  
Extension ARB_pixel_buffer_object. It is loaded successfully but I cannot  
access the vtkgl::GenBuffers command. At least this is where I get:

"...0xC0000005: Access violation reading location 0x00000000...".

I'm checking whether the command is available, like it is done e.g. with  
vtkgl::ActiveTextureARB etc. in the Initialize() methode of the mapper and  
it is not:-(

Any Ideas?

Eugen


PS: NV 7900 GS


-- 
Using Opera's revolutionary e-mail client: http://www.opera.com/mail/