[vtkusers] Geforce 6600 and isosurface display problem

[Binjie Qin]

Dear vtkusers:
     There is display problem in which 3D skull isosurface polygons were  
displayed in black under continuous rendering procedure using  
pRenWin->render() function, and the isosurface model can be normally  
displayed with some flicking on screen if the isosurface model be clicked  
with mouse.
     These problem did not take place in ATI graphical card before  
application moved to new computer platform with Geforce 6600 GT graphical  
card.
     The problem may be related to Geforce 6600 graphical card's  
acceleration on texture mapping, but I cannot find solution.
     I used pRenWin->SetupMemoryRendering()function to avoid the problem,  
but this solution decelerate the appliction.
     Any advice will be most appreciated! Thank you in advance!


attachment is 3D isosurface displayed in black using Geforce 6600  
graphical card


Binjie Qin, Ph.D.
Dept. of Biomedical Engineering
Shanghai Jiao Tong University
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