VTK/OpenGL

THIS INFORMATION IS OUT OF DATE AND SHOULD NOT BE USED--Burlen 15:50, 11 November 2013 (EST)

Linux

ATI Open GL Driver

ATI Driver on Debian GNU/Linux

http://wiki.cchtml.com/index.php/Debian_Installation_Guide#Compile_the_kernel_driver

I tested Method1 only --Mathieu 22:53, 17 October 2006 (EDT)

ATI Driver on Fedora 2

Other (untested) How To:

• Fedora 2:

http://www.redhat.com/archives/fedora-list/2004-May/msg06859.html

Debugging the ATI libGL

Some env var you should remember:

 LIBGL_ALWAYS_INDIRECT=1

 LIBGL_VERBOSE=1

 LIBGL_DEBUG=verbose

Documentation for fglrx options

Daniel Leidert wrote a man page at:

• http://www.stanchina.net/~flavio/debian/fglrx-archive/msg01017.html
• http://cvs.wgdd.de/cgi-bin/cvsweb/fglrx_man/
• Unofficial bug tracker: http://ati.cchtml.com/
• HOWTO ATI Drivers

nVidia Open GL Driver on Linux

nVidia Driver on Debian GNU/Linux

How to get OpenGL nVidia driver working on a linux debian system.

First thing you need to do is allow non-free packages from your sources.list file.

 # Be carefull only for nvidia-kernel-source
 deb http://ftp.us.debian.org/debian/ stable main non-free contrib

 sudo apt-get update
 sudo apt-get install nvidia-glx-dev nvidia-settings nvidia-xconfig
 sudo nvidia-xconfig

IMPORTANT: You have to be careful when you read the articles about this process around Internet! Because many of the documents around internet are very old. Since Debian 5.0(Lenny) you don't have to build your own kernel module. Pre-built packages are working perfectly.

CAUTION: A very new flagship graphic card will probably not be supported by the pre-built package. You may try one in experimental or unstable release. You may end up with replacing you card or building it from the scratch. If you build from the scratch, please refer the document to keep your work in Debian way.

 http://wiki.debian.org/NvidiaGraphicsDrivers

nVidia Driver on Ubuntu

The Wiki page is fairly simple just linking to it

Since the debian way seems to be broken http://packages.ubuntu.com/hoary/misc/java-package, here is how to install Java on ubuntu.

Mac OS X

Corrupted Display

If it happens with an ATI card from the r600 series (2600 XT) or the r500 series (older series) or with an nVidia GeForce 7 series, you probably had called SetStereoWindowCapable(true) on the RenderWindow. This a driver bug, known by Apple. The only workaround is to call SetStereoWindowCapable(false).

ref: VTK bug report, thread on the Apple mailing list

Mesa, Off Screen Mesa, Mangled Mesa

Various setups:

• Pure OpenGL
• Pure Mesa (no hardware and it has off screen natively)
• OpenGL + Mangled Mesa (hardware on-screen and software off-screen)

Pure Mesa

• Enable VTK_OPENGL_HAS_OSMESA
• Set the following values to apropriate locations:

OSMESA_INCLUDE_DIR /.../include
OSMESA_LIBRARY     /.../lib/libOSMesa.a

OpenGL + Off screen

To do hardware rendering (on screen) and software rendering (off screen) within the same application, you will have to use mangled mesa. Mangled mesa is build using all symbols mangled.

You may want to first look at article How I Mangled Mesa.

Build Mangled Mesa

The following refers to Mesa 6.2.*

Edit apropriate system configuration file. On Linux, for example, if you are building static, edit the file:

/path/to/source/config/linux-static

Edit the CFLAGS line and add the following at the end of CFLAGS and CXXFLAGS:

-DUSE_MGL_NAMESPACE

Then edit file:

/path/to/source/config/default

And rename the standard names for the libraries, for example:

# Library names (base name)
GL_LIB = MesaGL
GLU_LIB = MesaGLU
GLUT_LIB = MesaGlut
GLW_LIB = MesaGLw
OSMESA_LIB = MesaOSMesa

Setup VTK

• Disable VTK_OPENGL_HAS_OSMESA

• Make sure OpenGL settings are set to the hardware OpenGL library:

OPENGL_INCLUDE_DIR               /usr/include                                                                                                                           
OPENGL_gl_LIBRARY                /usr/lib/libGL.so                                                                                                                      
OPENGL_glu_LIBRARY               /usr/lib/libGLU.so                                                                                                                     

• Enable VTK_USE_MANGLED_MESA

• Set mangled mesa options:

MANGLED_MESA_INCLUDE_DIR        /.../include
MANGLED_MESA_LIBRARY            /.../lib/libMesaGL.a
MANGLED_OSMESA_INCLUDE_DIR      /.../include
MANGLED_OSMESA_LIBRARY          /.../lib/libMesaOSMesa.a

Use of Mangled Mesa

• For all mangled mesa calls, the vtk*Mesa* classes need to be used. For example, instead of vtkRenderWindow, vtkXMesaRenderWindow must be used. The full list of classes is:

vtkXMesaRenderWindow
vtkMesaActor
vtkMesaCamera
vtkMesaImageActor
vtkMesaLight
vtkMesaProperty
vtkMesaPolyDataMapper
vtkMesaRenderer
vtkMesaTexture
vtkMesaVolumeTextureMapper2D
vtkMesaVolumeRayCastMapper
vtkMesaRayCastImageDisplayHelper
vtkMesaFreeTypeTextMapper
vtkMesaImageMapper
vtkMesaPolyDataMapper2D

• To make Mangled mesa to be default, do the following at beginning of the program:

vtkGraphicsFactory::SetUseMesaClasses(1);
vtkImagingFactory::SetUseMesaClasses(1);

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