[vtkusers] Offscreen rendering question

[Andreas Brüning]

Thanks for your quick answer. I also heard about that.  I am using version 5.0.4. Do i need a newer version? I have a NVIDIA Quadro FX550, so i think it should work with it. 
I also read something about offscreen rendering and mesa. Do i have to enable Mangled Mesa in CMake when i want to develope offscreen or it not necessary?

Andi


What version of VTK are you using? Older versions used software
rendering to do offscreen rendering, which explains the performance
hit you are seeing. The version in CVS supports offscreen rendering in
hardware, assuming your hardware supports it, so you shouldn't see a
performance decrease.

Cory

On Tue, Jul 22, 2008 at 9:37 AM, Andreas Brüning <mail-andi at web.de> wrote:
> Hello,
>
> i am using VTK to develope different algorithms on Windows and C++. Until now i always visualize the results on a vtkOpenGlWin32RenderWindow. Now i have to implement an offscreen renderer. But as soon as i call OffScreenRenderingOn() in vtkOpenGlWin32RenderWindow the Render()- method needs more than ten times longer than in OnScreenRendering mode.
>
> Is there a way to increase the performance while using the offscreen mode or is there another way to develope an offscreen renderer?
>
> Thanks in advance
> Andi
>
>



____________________________________________________________________
Ihre Messenger, Communities und E-Mails jetzt in einem Programm!
WEB.DE MultiMessenger http://www.produkte.web.de/messenger/?did=3071