VR Juggler 2.2.0

VR Juggler is a virtual platform for virtual reality application development.
VR Juggler software is a virtual platform for virtual reality application development created at the Virtual Reality Applications Center at Iowa State University. Applications developed in VR Juggler can transparently move between a wide range of VR systems.

What's New in This Release:

* Improved cluster scalability and performance.

* Improved error handling and recovery through the use of exceptions
for error reporting. VR Juggler 2.2 is based on VPR 2.0 which uses
exception handling for all error reporting. vpr::ReturnStatus is now
considered deprecated.

* Easier command-line application build support by leveraging
Flagpoll (see https://realityforge.vrsource.org/view/FlagPoll/WebHome
for more information). This includes support for the use of Flagpoll
on Windows by using Flagpoll 0.9.1 or enwer. Note that the *-config
Perl scripts (such as vrjuggler-config) no longer exist in VR Juggler
2.2. Forward compatibility for this change was introduced with VR
Juggler 2.0.2.

* Cocoa support on Mac OS X. VR Juggler applications are deployed as
bundles, and X11 is not required at all. Mac OS X users should review
the updated VR Juggler /Getting Started Guide/ for information on
application execution options.

* Support for parallel installations. To facilitate long-lived
applications, the Juggler runtime (shared libraries and data files)
from multiple versions can be installed in parallel. To get the most
from this capability, users are strongly encouraged to use GMTL 0.5.4
and CppDOM 0.7.9 or newer, both of which also support parallel

* Versioned headers, data files, and shared libraries on non-Windows
platforms. This is all in support of parallel installations.

* Versioned DLLs on Windows. Windows builds should use automatic
linking to avoid complicated detection of .lib file names. Forward
compatibility for this change (i.e., automatic linking) was
introduced in VR Juggler 2.0.2.

* Support for 64-bit applications on Windows. This requires the use of
the CVS HEAD version of NSPR (currently known as NSPR 4.7).

* Reduced dependency on NSPR on Windows. We are using Windows threading
and synchronization primitives directly instead of the NSPR wrappers.

* Reduced run-time dependence on environment variables such as
VJ_BASE_DIR and SNX_BASE_DIR. This has been in the works since the
VR Juggler 2.0 beta stages. Now, for the Windows case, running
VR Juggler applications does not require setting VJ_BASE_DIR at all.
The installation path is determined at run time when the DLLs are
attached to the process. The Visual C++ project files still reference
VJ_BASE_DIR and VJ_DEPS_DIR, however.

* Support for OpenSG 2.0 in vrj::OpenSGApp.

* Early support for Direct3D. The VR Juggler Direct3D Draw Manager is
in the alpha stages of development, and feedback and improvements
would be welcome.

* Proper destruction of singletons created using the VPR singleton
preprocessor macros when the application exits. This facilitates much
cleaner shutdown, especially in the case of device drivers.

* More flexible debug handling on Windows. There are now two
debug-enabled versions of all binaries: one linked against the
release runtime and one linked against the debug runtime. This allows
applications linked against the release runtime to switch to using
debug-enabled Juggler libraries simply by changing the PATH
environment variable. This same capability has always existed on
non-Windows platforms by modifying (DY)LD_LIBRARY_PATH.

* Expanded use of boost::shared_ptr for better (internal) memory
handling. User-level code will probably not see much of this.

* Fixed stability problems with OSG applications when run with a
multi-pipe/multi-threaded VR Juggler configuration.

* Eliminated the need for OSG- and OpenSG-based applications to define
plain OpenGL lighting just to make the VR Juggler simulator
components render well. See the OSG and OpenSG sample applications
for the current state of things.

* Initial Unicode support for Gadgeteer keyboard/mouse devices.

* Support for the noDNA X-IST device. Submitted by Damien Touraine.

* Support for the USB Essential Reality P5 Glove. Submitted by Damian

* Revamped Polhemus Fastrak driver that is much easier to configure.

* Enhanced configurability of multisampling with OpenGL windows.
Currently, this is only supported fully on the X Window System.

last updated on:
December 22nd, 2007, 6:23 GMT
license type:
LGPL (GNU Lesser General Public License) 
developed by:
VR Juggler Team
ROOT \ Science and Engineering \ Visualization
VR Juggler
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