[vtkusers] hardware accelerated offscreen rendering without diplaying window

[Adriano Gagliardi]

There is a patch that essentially comments out the lines of code that cause
the X-window to pop up. I've been using it for a couple of years without
issue:

http://www.cmake.org/pipermail/paraview/2009-December/014908.html

That should have the attachement on it (HideWindow.patch).

Thanks,

Adriano 


===================================

Adriano Gagliardi MEng PhD
Business Sector Leader
Computational Aerodynamics
Aircraft Research Association Ltd.
Manton Lane
Bedford

Tel: 01234 32 4644
E-mail: agagliardi at ara.co.uk
Url: www.ara.co.uk 
-----Original Message-----
From: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] On Behalf
Of Peter Schiemann
Sent: 26 July 2011 13:47
To: vtkusers at vtk.org
Subject: Re: [vtkusers] hardware accelerated offscreen rendering without
diplaying window

Hello Victor,
with VTK you only have the choice of either accelerated rendering on a
physical display or software rendering which can be off screen. There has
been no attempt to support pure off screen with hardware support for several
years. As you say, the best alternative is Visit. What you need works out of
the box.
If you need a solution in VTK, study the class vtkXOpenGLRenderWindow.cxx
and find out why it pops up an unnecessary window although set to offscreen.
I was told it is not difficult, but I am not familiar with X windows
programming.

Good luck!
Peter


>Dear VTK gurus!
>
>I was wondering about the status of hardware accelerated offscreen
rendering in VTK *without* displaying an X window on the server (linux
operating systems).
>
>If this is possible, can somebody please document the CMake settings and a
usage example in the VTK Wiki?
>
>There have been several discussion threads on this issue, but I found 
>no solution. They all gave up at some point. I guess 
>http://www.vtk.org/Wiki/VTK/Examples
>/Cxx/Utilities/OffScreenRendering is the "official" example, how to render
offscreen. But unless compiled with software rendering, it still displays an
X window.
>
>If this is impossible with VTK, why?? VisIt is capable of hidden,
accelerated offscreen rendering. SoQt can easily do it, too.
>Is VTK designed differently, so that use of modern pbuffers or frame buffer
objects is excluded? Then please say so, and people can make their choice.
>
>Thank you
>Vic

___________________________________________________________
Schon gehört? WEB.DE hat einen genialen Phishing-Filter in die Toolbar
eingebaut! http://produkte.web.de/go/toolbar
_______________________________________________
Powered by www.kitware.com

Visit other Kitware open-source projects at
http://www.kitware.com/opensource/opensource.html

Please keep messages on-topic and check the VTK FAQ at:
http://www.vtk.org/Wiki/VTK_FAQ

Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers


**********************************************************************
This email contains information that is private and confidential and is intended only for the addressee.
If you are not the intended recipient please delete it and notify us immediately by e-mailing the sender.
Note: All email sent to or from this address may be accessed by someone other than the recipient, for
system management and security reasons.
Aircraft Research Association Ltd.  Registered in England, Registration No 503668 Registered Office:
Manton Lane, Bedford MK41 7PF England VAT No GB 196351245

**********************************************************************