7b003b24ea
multi-threaded paging, where the Pager manages threads of reading local and http files via seperate threads. This makes it possible to smoothly browse large databases where parts of the data are locally cached while others are on a remote server. Previously with this type of dataset the pager would stall all paging while http requests were being served, even when parts of the models are still loadable virtue of being in the local cache. Also as part of the refactoring the DatabaseRequest are now stored in the ProxyNode/PagedLOD nodes to facilitate quite updating in the cull traversal, with the new code avoiding mutex locks and searches. Previous on big databases the overhead involved in make database requests could accumulate to a point where it'd cause the cull traversal to break frame. The overhead now is negligable. Finally OSG_FILE_CACHE support has been moved from the curl plugin into the DatabasePager. Eventually this functionality will be moved out into osgDB for more general usage.
Welcome to the OpenSceneGraph (OSG).
For up-to-date information on the project, in-depth details on how to
compile and run libraries and examples, see the documentation on the
OpenSceneGraph website:
http://www.openscenegraph.org
For the impatient, read the simplified build notes below. For support
subscribe to our public mailing list:
http://www.openscenegraph.org/projects/osg/wiki/MailingLists
Robert Osfield.
Project Lead.
25th April 2008.
--
How to build the OpenSceneGraph
===============================
The OpenSceneGraph uses the CMake build system to generate a
platform-specific build environment. CMake reads the CMakeLists.txt
files that you'll find throughout the OpenSceneGraph directories,
checks for installed dependenciesand then generates the appropriate
build system.
If you don't already have CMake installed on your system you can grab
it from http://www.cmake.org, use version 2.4.6 or later. Details on the
OpenSceneGraph's CMake build can be found at:
http://www.openscenegraph.org/projects/osg/wiki/Build/CMake
Under unices (i.e. Linux, IRIX, Solaris, Free-BSD, HP-Ux, AIX, OSX)
use the cmake or ccmake command-line utils, or use the included tiny
configure script that'll run cmake for you. The configure script
simply runs 'cmake . -DCMAKE_BUILD_TYPE=Release' to ensure that you
get the best performance from your final libraries/applications.
cd OpenSceneGraph
./configure
make
sudo make install
Alternatively, you can create an out-of-source build directory and run
cmake or ccmake from there. The advantage to this approach is that the
temporary files created by CMake won't clutter the OpenSceneGraph
source directory, and also makes it possible to have multiple
independent build targets by creating multiple build directories. In a
directory alongside the OpenSceneGraph use:
mkdir build
cd build
cmake ../OpenSceneGraph -DCMAKE_BUILD_TYPE=Release
make
sudo make install
Under Windows use the GUI tool CMakeSetup to build your VisualStudio
files. The following page on our wiki dedicated to the CMake build
system should help guide you through the process:
http://www.openscenegraph.org/projects/osg/wiki/Support/PlatformSpecifics/VisualStudio
Under OSX you can either use the CMake build system above, or use the
Xcode projects that you will find in the OpenSceneGraph/Xcode
directory.
For further details on compilation, installation and platform-specific
information read "Getting Started" guide:
http://www.openscenegraph.org/projects/osg/wiki/Support/GettingStarted