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Robert Osfield 932608f804 From Bruno Hebelin, 
"I have adapted to osgShadow the soft shadow map technique described in  "Efficient Soft-Edged Shadows Using Pixel Shader Branching" by Yury Uralsky, Chapter 17 of GPU Gems 2 (Matt Pharr ed. Addison-Wesley).

Here is my code in attachment: basically, it works in the same way as osgShadow/ShadowMap (core code is copied from it) but implements a specific GLSL shader for the soft rendering of penumbra.

I have tested it under Linux with a NVidia graphic card, but there should be no dependency on platform nor on the graphics driver (as far as they support GLSL 2). Screenshots attached show the current results (frame rate bound to v-sync, but the shader takes actually not much time)."
2007-08-12 12:12:55 +00:00
applications Added DisplaySetting::s/getCompileContextHint() and use of this hint in osgViewer::Viewer/CompositeViewer. 2007-08-11 14:49:14 +00:00
CMakeModules Re-introduced GDAL plugin. 2007-08-07 10:33:25 +00:00
doc/Doxyfiles Changed SHORT_NAMES = NO to SHORT_NAMES = YES to avoid crappy Windows problems 2007-05-29 07:25:13 +00:00
examples Added DisplaySetting::s/getCompileContextHint() and use of this hint in osgViewer::Viewer/CompositeViewer. 2007-08-11 14:49:14 +00:00
include From Bruno Hebelin, 2007-08-12 12:12:55 +00:00
src From Bruno Hebelin, 2007-08-12 12:12:55 +00:00
VisualStudio Removed more of the old VisualStudio build system 2007-04-10 13:12:58 +00:00
Xcode From Martin Lavery, XCode updates for the new Renderer class 2007-08-02 12:36:03 +00:00
AUTHORS.txt Updated ChangeLog, and AUTHORS file for release 2007-08-06 11:50:40 +00:00
ChangeLog Updated ChangeLog, and AUTHORS file for release 2007-08-06 11:50:40 +00:00
CMakeLists.txt Re-introduced GDAL plugin. 2007-08-07 10:33:25 +00:00
configure Added a basic configure script to allow the setting of Release build by default. 2007-05-26 15:55:26 +00:00
genwrapper.conf Updated wrappers 2007-07-23 18:19:02 +00:00
LICENSE.txt Added missing LGPL section to LICENSE.txt 2006-11-20 10:12:57 +00:00
NEWS.txt Updated ChangeLog 2007-06-15 16:17:33 +00:00
README.txt Updated README 2007-08-06 11:52:04 +00:00
runexamples.bat Removed the command line parameters form the examples that now have a default 2007-06-09 10:07:07 +00:00

README.txt 

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.

Robert Osfield.
Project Lead.
6th August 2007.

--

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.

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.com/index.php?page=Build.CMake

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" at http://www.openscenegraph.org, 
under "Documentation".