[vtkusers] (no subject)

[rchqh]

Hi all,
I am developing a project to acquire realtime images from hardware.And I 
planed to show every image one by one.For updating rendering scene,I adopted 
vtkRenderer::Clear() to remove old image and then showed new image using 
vtkRenderer::Render().But this method didn't work.I know that I can use 
vtkRenderWindow::Render() to render updated scene,but this process is very 
slow and stupid.Can you tell me some better method to solve such problem?I 
also wonther how to use vtkRenderer::Clear() and vtkRenderer::Renderer().
Thanks a lot!

Wong Hing Wah