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/*! \page changelog Changelog
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 * - <b>OpenFlipper 1.0.3 (  ? , 12412 )</b>
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 *       - <b>ACG</b>
 *          - SceneGraph
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 *              - General
 *                  - Changed all nodes to use the glstate system instead of direct gl calls
 *              - MaterialNode
 *                  - Changes to light and material dialog to set alpha channel
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 *              - MeshNode
 *                  - Fixed bug in per vertex picking buffer(was sometimes empty).
 *                  - Render faces with normals defined on the mesh(and do not compute them)
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 *              - StatusNode
 *                  - Implement on demand updates (before everything was updated on a change)
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 *      - <b>Core</b>
 *          - File handling
 *              - Fixed load and save bug, where extensions where considered equal if prefix matched
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 *          - General
 *              - Type iterator introduced to iterate over all currently available types
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 *              - Removed process events calls from snapshots
 *              - Added threaded writing for video function (higher framerates possible due to less io waiting)
 *              - Removed the unique naming functions from file plugins (not required, horribly slow)
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 *              - Removed all processEvents from core
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 *              - Large speedup to mesh object updates (due to status node switch for on demand updates)
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 *          - GUI
 *              - Fixed bug causing a crash when switching between logger modes
 *              - Reworked log viewer animation and embedding
 *              - Reworked in scene toolbar integration
 *              - Fixed bug with transparent frame introduced with QT 4.7.3 onward
 *              - Added functions to hide status bar ( Ctrl+b , scripting)
 *              - When going to fullscreen, hide only toolbars that are currently docked
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 *              - Reintroduced checkbox for rendering toolbar outside of scene
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 *              - Added menus to switch between postprocessors and renderers
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 *              - Introduced split viewer layout with two viewers next to each other
 *              - Set focus on right examiner when a context menu is requested
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 *          - Load/Save
 *              - Dont crash when we get a wrong id after adding a new object
 *              - Fixed bug in recent files menu which sometimes ignored the type
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 *          - Options 
 *              - Fixed bug where translations could not be switched in the options dialog
 *              - Added sliders to options widget to support smaller screens
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 *          - Rendering
 *              - Moved flyTo animations to animation framework (no more ugly processEvents)
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 *              - Fixed fly to animation not working when rotation ofthe viewer was locked
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 *              - Snapshot functions now have asynchronus file writers
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 *              - Removed philips stereo code from core ( moved into postprocessor plugin)
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 *          - Scripting
 *              - More slot documentations
 *              - added deleteObject function
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 *              - Changed snapshot functions to count filenames with leading zeros
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 *      - <b>Interfaces</b>
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 *          - BaseInterface
 *              - Added a drawModeChanged slot
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 *          - RenderInterface
 *              - New interface to replace the core rendering function with a specialized one
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 *          - PostProcessorInterface
 *              - Introduced new interface to add rendering postprocessors to plugins (e.g. render depth image)
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 *      - <b>Plugins</b>
 *          - File OBJ
 *              - Add empty object if empty file is read instead of failing
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 *              - Fixed issue regarding vertices that belong to a specific group. Vertices are now stored globally 
 *                and then copied to the group meshes on demand..
 *          - File PLY
 *              - PLY Reader implementation for forcing data type (required for recent files with specific type)
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 *          - File VTK
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 *              - Introduced new VTK importer/exporter plugin   
 *          - Post Processor Depth Image 
 *              - New Plugin taking depth buffer and rendering it as the final output image
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 *          - Post Processor Philips Stereo
 *              - Postprocessor for image output on Philips autostereoscopic displays
 *          - Render Picking
 *              - Plugin that implements the core render picking functionality
 *              - Renders the picking color buffer to the screen.
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 *          - Selection
 *              - Introduce function to load selections via scripting from files
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 *              - Fixed bug in selection plugin where sphere painter size was not updated on the fly
 *              - Readded button to load flipper selections
 *              - Fixed bug where sphere selection sometimes failed (pciking itself instead of object)
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 *          - Texturecontrol
 *              - Don't switch drawmode when texture is switched ( ==== You have to switch the drawmode yourself in a plugin now) ===== )
 *              - Bugfix to react on switching to texture based drawmodes
 *              - Histogramm for 1d halfedge based texture coords for texture properties widget
 *              - Bugfix property abs (absolute value) no longer causes a parse error
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 *          - VSI
 *              - Fixed bug where meshobjectinfo was not correctly supported
 *      - <b>Build System</b>
 *          - Increased min cmake version to 2.8.5 to work around some build problems with minor versions
 *          - Follow links when recursivly adding sources
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 *          - Added missing call t find_package doxygen causing per plugin docs to be skipped
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 * - <b>OpenFlipper 1.0.2 (  2011.06.30 , 11903 )</b>
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 *      - <b>ACG</b>
 *          - SceneGraph
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 *              - GridNode
 *                  - Only return a bounding box, if there will be something visible
 *              - ManipulatorNode
 *                  - Fixed manipulator node, where bounding box was computed without center
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 *              - MaterialNode
 *                  - Change point size and line width in picking mode to avoid user confusion
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 *              - MeshNode
 *                  - Added GPU Cache optimizer ( For per vertex draw modes; Speedup for rendering about 3 )
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 *                  - Use buffer objects for rendering
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 *              - ShaderNode
 *                  - Fixed return type of functions
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 *                  - Don't use shaders when insufficient gl version is detected
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 *          - GL
 *              - Fixed bug that made VertexBufferObject unusable
 *              - Fixed bug that made FrameBufferObject unusable
 *              - Avoid usage of glIsRenderBuffer
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 *              - Added functions for gl version check
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 *              - Preparation of gl state locking (not completed yet)
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 *          - Shaderutils
 *              - Check if gl version satisfies requirements for shaders
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 *          - Documentation
 *              - Color picking documentation
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 *      - <b>Core</b>
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 *          - Rendering
 *              - Fixed bug, when empty objects where added (Scenegraph Bounding box was not correctly reset)
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 *              - Disable two sided lighting by default (Way faster rendering without tsl)
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 *              - Fixed initial draw mode on mac os on first startup
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 *          - User Interactions
 *              - Fixed doubleclick in multiview not moving hitpoint to center in ortho mode
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 *              - Context Menu: Fixed crash when no default view mode was set
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 *          - Options
 *              - Handle default projection mode via OpenFlipperSettings and reorder widget
 *              - Added default lock rotation setting
 *              - Make ViewerProperties aware of the viewer id it belongs to
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 *              - Place options in correct config files to be app store compliant
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 *          - View mode
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 *              - When adding context menus, remove the accelerators & to avoid matching failiures
 *              - Fix for the undo/redo context menu entries containing special characters.
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 *          - Load/Save
 *              - Fixed handling of last directory to avoid jumps between dirs in file dialogs.
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 *              - Fixed variable initialization in ParseINI
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 *              - Rename files if multiple files have the same name when saving settings file.
 *              - Fixed bug in load save dialog, where capital extensions were not handled correctly
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 *          - Plugin Loader
 *              - Limit number of preload threads
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 *          - Scripting
 *              - Dont create ui elements from scripting in batch mode
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 *          - Sapshots
 *              - Removed process events from aplpication snapshot (strange behavior)
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 *          - User Interface
 *              - Introduced option if pickmode toolbars are handled in the viewer or as a traditional toolbar on the left
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 *          - About Dialog
 *              - List registered file plugins
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 *              - Added intel compiler infos
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 *              - Show os endian type
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 *      - <b>Interfaces</b>
 *          - Introduced selection Interface
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 *          - Introduced Information Interface
 *              - From now on, it is necessary to implement an info plugin for each specific data type. 
 *              - This plugin has to override InformationInterface in order to provide information on a clicked object.
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 *          - Reworked Backup Interface
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 *          - BaseInterface
 *              - Fixed non called slot pluginViewUpdated which broke the viewChanged signal in BaseInterface
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 *      - <b>ObjectTypes</b>
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 *          - BaseObjectData
 *              - Fixed virtual function shadowing
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 *          - BSplineCurve
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 *              - BSplineCurveT: Added selection wrapper functions 
 *              - Fixed rendering of knot selection
 *              - Added icon for B-spline Curves
 *              - Added context menu to show/hide selection and cotrol net
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 *          - BSplineSurface
 *              - BSplineSurfaceT: Added selection wrapper functions
 *              - Fixed rendering of knot selection
 *              - Added icon for B-spline surfaces
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 *              - Added context menu to show/hide selection and cotrol net
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 *              - Corrected behaviour of control point deletion 
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 *          - Camera
 *              - New Datatype for visualizing cameras
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 *          - CoordSys
 *              - Fixed coordsys node which did not initialize the rotation matrix.
 *              - Smooth shaded mode for coordsys
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 *              - fixed bug where coordsys state was wrong after snapshot
 *          - Light
 *              - Make sure to not use OpenGL, if its not there (Fixes batch mode in headless compute clusters)
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 *          - MeshObject
 *              - Fixed functions to set/get selections which ignored vertex 0
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 *              - Update status nodes when geometry is updated. Otherwise they are at the wrong pos with wrong bounding box
 *              - Introduced update textures signal
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 *          - Plane
 *              - Added missing plugin function (get PlaneObject from id)
 *          - Skeleton
 *              - Fixed error on some compilers not building although class was defined as friend
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 *      - <b>Plugins</b>
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 *          - Backup
 *              - Reworked Backup system
 *                  - Support for global undo redo
 *                  - Support for per object undo redo
 *                  - Support for undo/redo groups
 *                  - Support for partial backups (selection only ... )
 *                  - Integrated backup requests in with type plugins
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 *          - Datacontrol
 *              - Don' change source and target settings of objects when they get grouped
 *              - Fixed warning, when groupobjects have been appended to their parent twice
 *          - FileOBJ
 *              - Fixed crash with wrong indices in obj importer (Only triggered on defect obj files)
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 *              - Fixed group parsing (All items that have the same group name will end up in one object now)
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 *          - FileOFF
 *              - Fixed windows build error on some VS versions
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 *              - Fixed parsing of off files containing empty lines
 *              - Fixed parsing of some comments
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 *          - FilePLY
 *              - Improved error handling when indices are out of range
 *              - don't ignore user settings in ascii reader
 *              - Support big endian files
 *              - Correctly write binary header(missing endian)
 *              - reserve memory before adding data to improve speed
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 *              - Fixed crash in binary reader with texture coordinates
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 *          - Info
 *              - Renamed to InfoMeshObject
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 *          - MeshRepair
 *              - Cleanup, functions to compute normals
 *              - Made mesh repair functions scriptable
 *              - Visual scripting interface itegration
 *          - Move
 *              - Move multiple objects at once
 *              - Built in function to rasterize manipulator rotation (in 45 degree steps) if shift and control is pressed simultaneously.
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 *          - Selection
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 *              - Reworked selection Interface
 *                  - SelectionBase Plugin now handles the basics
 *                  - Per type one selection plugin handles this types selection
 *                  - Only available selection metaphors are enabled in the gui
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 *              - Fixed bug where vertex selection was not saved properly
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 *              - Fixed pickmode toolbar rendering bug in MacOS and Windows.
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 *          - Smoother
 *              - updated normals after smoothing
 *              - add possibility for using fixed weights
 *              - removed unnecessary garbage collection
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 *          - Texture Plugins
 *              - Fixed OpenFlipper crash when computing curvature textures on Darwin (Disabled openmp .. unclear why it crashes)
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 *          - TextureControl
 *              - Added imagestore to reuse already active textures
 *          - Topology
 *              - Now operates on quad meshes where possible
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 *          - TypeLight
 *              - Make TypeLight run in batch mode
 *          - TypeCamera
 *              - Make TypeCamera run in batch mode
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 *      - <b>Build System</b>
 *          - Introduced option to debug OpenFlipperSettings (cerr read and write access to settings)
 *          - Introduced mac option to provide a user defined Info.plist
 *          - Added 512x512 Icon to OpenFlipper_Icon.icns 
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 *          - Only build documentation if doxygen is available
 *          - Added simple ANN finder
 *          - Plugin Configuration output
 *              - Sort list of configured plugins
 *              - Add more spaces for longer plugin names
 *              - Sort plugin configuration details into groups
 *              - Output Build type when configuring
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 *          - Additional mac path for qt_menu.nib
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 *          - License Manager changes. Global flag now controls if the license managers get enabled.
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 *          - Added cmake macros for gtest dependencies used for unit testing
 *          - Flag for appstore compliance added (-DAPP_STORE_COMPLIANT)
 *          - Added cuda integration for plugins
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 *          - Fixed include of global dependencies that havve to be integrated to core
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 *          - Introduced Recursive dependecies (Parses flags like LIBRARY_DEPS and LIBRARY_OPT_DEPS)
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 *      - <b>Packaging</b>
 *          - Added file type association for mac OS
 *          - Flag for appstore compliance added
 *          - Changed the path to OpenFlippers config dir to be app store compliant
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 *          - Automatically copy qt plugins into bundle/installer
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 *      - <b>Documentation</b>
 *          - Fixed doxygen problem with missing includes
 *          - Fixed typo which caused DeveloperDoc to include user doc
 *          - Skeleton Documentation
 *          - Tutorial to add empty objects
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 * - <b>OpenFlipper 1.0.1 (  03.21.2011 , 11158 )</b>
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 *      - <b>Interface changes</b>
 *          - <b>ACG</b>
 *              - In ACG enter,enterPick,leave,leavePick,draw functions now get the draw mode as const reference. Please change your nodes accordingly
 *          - <b>Interfaces</b>
 *              - Remove getAllFilters from LoadSaveInterface as the right functions are in the file interface
 *              - Moved openedFile signal from LoadSaveInterface to FileInterface
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 *      - <b>ACG</b>
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 *          - General
 *              - Remove glew on Mac
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 *          - GLState
 *              - clearallbuffers fixed (cleared whole buffer instead of the viewport only( broke multiview of OpenFlipper ) 
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 *          - DrawModes
 *              - Made isAtomic const
 *          - Scenegraph
 *              - enter,enterPick,leave,leavePick,draw functions now get the draw mode as const reference. Please change your nodes accordingly
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 *          - LineNode
 *              - Fixed rendering of line node in LineSegments mode where wrong color was used
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 *      - <b>Core</b>
 *          - Log Window
 *              - Fixed log filter button staying pressed
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 *          - About widget
 *              - Added section about developers
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 *              - Show library paths in about dialog
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 *          - User Interface
 *              - Scripting function to move toolboxes to top or bottom
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 *          - Interfaces
 *              - Make operator functions for == an != const in ObjectIterator
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 *              - Remove getAllFilters from LoadSaveInterface as the right functions are in the file interface
 *              - Moved openedFile signal from LoadSaveInterface to FileInterface
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 *          - Rendering
 *              - Added option to set minimal scene size
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 *          - Snapshot functions
 *              - Trim snapshot filename (Fixes bug, where windows got confused when space was behind the filename which caused an inaccesible file )
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 *          - Internals
 *              - Renamed slotObjectOpened in core to slotFileOpened
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 *      - <b>LicenseManager</b>
 *          - Use separate Hashes for each network interface
 *          - Use more reliable windows native code to get windows interfaces
 *          - Include product id on windows
 *          - Fixed wrong coreApp path on Mac
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 *          - Get rid of extra message box when license files are not found
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 *          - Ovverride button to generate License without a request
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 *      - <b>ObjectTypes</b>
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 *          - BSplineCurve
 *              - Fixed some rendering errors
 *          - Coordsys Object
 *              - New Object type for visualizing coordinate systems
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 *          - MeshObjects 
 *              - Bugfixes
 *                  - Fixed StatusNodeMod for handle and modeling regions to return correct information about handle/modeling areas.
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 *          - SkeletonObjects
 *              - Update of Animation classes
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 *      - <b>Plugins</b>
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 *          - Selection
 *              - Store halfedge selections in ini file
 *          - FileOBJ
 *              - Store textures to texture dir with name prefix of file to avoid ambigouties
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 *          - FileSkeleton
 *              - Removed ( Is now FileSKL)
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 *          - MeshRepair
 *              - Made most functions scriptable
 *              - Some minor bugfixes
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 *          - Move
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 *              - Fixed wrong update of normals
 *              - Transform skeletons correctly
 *              - Corrected setPosition function to correctly transform mesh as desired.
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 *          - ViewControl
 *              - Scripting function to set projection mode of coordinate system
 *          - VSI (Visual scripting interface)
 *              - Fixed bug that prevented usage of conditions and loops
 *              - Scripting functions for Mesh Repair Plugin
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 *      - <b>Documentation</b>
 *          - Developer Documentation
 *              - Include all code in OpenFlippers directory in the developer docs
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 *              - Overview for datatypes
 *              - Document skeleton class
 *              - Document Mesh datatypes
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 *              - Documentation for Interfaces
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 *          - User Documentation
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 *      - <b>Build System</b>
 *          - Moved VERSION file to OpenFlipper subdir, as this represents more or less the core version
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 *          - Be less verbose in doxygen configs
 *          - Updated doxygen macro
 *          - plugins can now provide user documentation in the userDoc subdir
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 *          - Fixed missing ACGDLL definition when building pluginlib
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 *          - install documentation along with OpenFlipper
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 * 
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 * - <b>OpenFlipper 1.0 (  01.26.2011 , 10764 )</b>
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 *      - <b>ACG</b>
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 *          - GLState
 *              - Enable or disable Mipmapping
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 *              - Moved depth_func_ from BaseNode to GL_State
 *              - Pass Scene boundingbox through glstate (Allow nodes to get current boundingbox)
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 *          - Dialogs
 *              - Added Dialog for texture node
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 *              - QtMaterialDialog (Fixed bugs and interference with round_points/smooth_line)
 *          - BSlineCurveNode
 *              - Get colors from materialNode rather than setting it in the node directly
 *          - BSlineSurfaceNode
 *              - Get colors from materialNode rather than setting it in the node directly
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 *          - Coordsys Node
 *              - Implemented orthogonal mode
 *          - GLState
 *              - Correctly clear buffers
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 *          - Gridnode
 *              - Fixed size now works correctly
 *          - LightNode
 *              - Picking implemented
 *              - Fixed BoundingBox computation
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 *          - MaterialNode
 *              - Added random color generator
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 *          - MeshNode
 *              - Added per face per vertex normal buffer
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 *              - New EDGE_COLORED draw mode
 *              - New HALFEDGE and HALFEDGE_COLORED draw mode
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 *              - Fixed a bug in MeshNode2T that would permanently change the depth comparison function instead of only temporarily
 *              - Correctly unbind texture if bound in MeshNode
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 *          - PlaneNode
 *              - Fixed an error in the nonzero normal detection in PlaneNode::setPosition.
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 *          - Pointnode
 *              - Fixed null pointer dereference when no points are available
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 *          - QtMaterialDialog
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 *              - Bugfix ( GL_SCR_ALPHA was missing as choice for blending param)
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 *          - Quaternions
 *              - Matrix constructor added
 *              - Added dual quaternions
 *          - Scenegraph
 *              - Extend drawMode Action to include a force mode (forces the given drawmode on all nodes)
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 *          - StatusNode
 *              - Halfedge Selections
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 *              - Fixed bug accessing element one of empty array
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 *          - TextureNode
 *              - Enable or disable Mipmapping
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 *          - Transform Node
 *              - Support planar 2D objects
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 *      - <b>Core</b>
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 *          - About Dialog
 *              - Added output for cpu information
 *              - Added output for memory information
 *              - Added output for os information
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 *          - BaseObject
 *              - Remove all children from additional node when deleting the subtree(otherwise we get dangling pointers)
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 *              - Function to set drawmode for all child nodes in an object
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 *          - Backup Interface
 *              - Icons for undo/redo
 *              - Intorduced backup groups (create groups of changes for undo/redo .. e.g. if multiple objects are involved)
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 *          - Startup
 *              - Added some functions to check for correct lib versions (prevent linking against newer qt than compile version)
 *          - Rendering 
 *              - Sanity Checks for OpenGL Version. Test for GL capabilities on startup.
 *              - Removed light handling completely ( -> Plugin-TypeLight)
 *              - Added options to enable or disable mipmapping
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 *              - Set minimal scene size for startup to 10 
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 *              - Implemented zoom to for orthogonal projection mode
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 *              - Added option to set fov for the viewers
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 *              - Added option to directly render depth buffer as image
 *              - Bugfix (lookat wrong for ortho mode)
 *              - Bugfix (Wrong parameters when resizing viewer)
 *              - Improved fly to functions
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 *          - Key Handling
 *              - Fixed alt-key bug where last mode was not restored correctly on windows
 *          - Info
 *              - Show memory usage information in about dialog on linux
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 *          - License Manager
 *              - Improved license checks
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 *              - Improved license keygen ui
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 *              - Checks cpu as well
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 *          - Load/Save
 *              - Fixed bug when supported extensions are not parsed correctly
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 *              - Fixed bug when filename extensions with capital letters where not marked as supported
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 *              - Add files opened via commandLine to recent files
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 *              - Fixed bug which overrides colors loaded from files with random colors
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 *              - Fixed bug where objectDeleted(int) was called after the actual object is delete (making it impossible to cleanup on that signal)
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 *              - Fixed bug where objects generated by a plugin could not be saved
 *              - Fixed bug, where sometimes the save to dialog returned wrong directory and saved to default folder instead
 *              - Fixed bug, where filenames with multiple dots where not handled correctly
 *          - Log Window
 *              - Added filter Menu to disable OpenMesh error messages
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 *          - Options
 *              - Some gui cleanup for options widget
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 *          - Settings
 *              - Sanity checks if no default is given for OpenFlipperSettings
 *          - Scripting
 *              - Set fovy via scipting
 *              - set toolbox orientation via scripting
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 *          - Snapshots
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 *              - Remember last states for snapshot dialog
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 *              - Render snapshots offscreen (Arbitrary size)
 *              - Added option to hide coordsys in snapshots
 *              - Added options to set background to alpha in snapshots
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 *              - Added option to enable/disable multisampling in snapshots (and adjust #points used for multisampling)
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 *              - Improved scripting functions for snapshots
 *          - PluginConnection Interface
 *              - Allow to connect signals and slots across plugins
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 *          - Process Interface
 *              - Show progress dialog centered at corewidget (not anywhere on screen)
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 *          - Toolbox interface 
 *              - Support icons for toolboxes
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 *          - User Interface
 *              - Added option to show toolbox on the left
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 *              - Added option to show/hide view mode controls
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 *          - ViewMode Interface
 *              - Allow setting of viewmodes
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 *      - <b>ObjectTypes</b>
 *          - MeshObjects 
 *              - BSP Tree 
 *                  - Improve cutting planes to speedup search (more balanced tree)
 *                  - Allow ray intersections for searching in tree (Search for all faces hit by ray)
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 *              - Bugfixes
 *                  - Fixed wrong lower value computed for bounding boxes (wrong initialization clamping bounding box to upper part of (0.0,0.0,0.0) ) 
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 *          - PolyLineObjects
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 *          - new Skeleton object type
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 *      - <b>New Plugins</b> 
 *          - Backup
 *              - Added Backup plugin to free branch
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 *          - FileSKL 
 *              - Load/Save Skeleton files (skl) 
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 *          - FileBVH
 *              - Load/Save BVH Skeleton Files (BioVision)
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 *          - Mesh Repair
 *              - Detect and remove some simple defects on meshes
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 *          - SkeletalAnimation
 *              - Animates skeletons
 *          - SkeletonEditing
 *              - Edit Skeletons
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 *          - Subdivider
 *              - Added OpenMesh subdivider plugin to the free branch 
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 *          - TypeSkeleton
 *              - Handles skeleton data type 
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 *      - <b>Plugins</b>
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 *          - DataControl
 *              - Added Object name and ID display to Datacontrol popup menu
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 *              - Better on/off visualization for light sources
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 *              - Collapse Additional boxes to save space
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 *          - Decimater
 *              - Support backup plugin ( ->undo )
 *          - FileOBJ
 *              - Bugfix for negative indices for vertices
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 *              - Save texxtures and material files
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 *              - Support negative vertex index for spline curves and surfaces
 *              - Fixed bug reading knot vector in wrong order for spline surfaces
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 *          - FileOFF
 *              - Bugfix for crash when reading degenerate faces
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 *          - FilePLY
 *              - Switch to point rendering if only points where read
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 *              - Separate Reader from OpenMesh reader (created a new integrated reader/writer independent of OpenMesh IO)
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 *          - Info
 *              - Bugfix -> Dihedral angle for quad meshes computed wrong
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 *              - Improved performance when floodfilling mesh in order to count connected components.
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 *          - Light
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 *              - Reduced brightness for default lights (Otherwise colors of objects are almost always white)
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 *              - Added missing Layout to dialog
 *              - Added missing slot to react on fixed position checkbox change
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 *              - Added functions to rotate and move lights
 *              - Fixed OpenGL handling of directional light sources
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 *          - Move
 *              - Support backup plugin ( ->undo )
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 *          - Selection Plugin
 *              - Added halfedge selection
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 *              - BSplineSurface Knot Selection
 *              - BSplineSurface Selection
 *              - Render Selections for BSpline Curve and Surface
 *          - Smoother
 *              - Support backup plugin ( ->undo )
 *          - TextureControl
 *              - Added min_val parameter additionally to max_val
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 *              - Added histogramm controls
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 *              - Added reader for tga files
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 *          - ViewControl
 *              - Support Splines
 *              - Support PolyLines
 *              - New Scripting Function to set per object drawMode directly
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 *              - Fixed shader assignment
 *              - Preset buttons for basic viewing directions
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 *      - <b>Documentation</b>
 *          - More docs for backup interface (incl. Tutorial)
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 *          - Do not include svn, standard build dirs in docs
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 *      - <b>Build System</b>
 *          - Do not include files starting with a dot when creating build lists
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 *          - Copy qt_menu.nib on mac 
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 *          - Raised qt warning level to 4.8 (4.7 tested on mac ... works)
 *          - Improved branding support (Including license text for installers)
 *          - When creating windows bundles, copy dlls required by plugins as well as core libraries (Creates independent bundle)
 *          - Fixed bug with integration of visual studio redistributable in installers 
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 *          - Don't integrate OpenMesh libs and headers in installer package
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 *          
 *       
 * 
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 * - <b>OpenFlipper 1.0 (  06.23.2010 , 9691 RC7 )</b>
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 *      - <b>Core</b>
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 *          - Added Light source management
 *              - Added global nodes to handle light sources
 *              - Internal light handling can now be switched off via pluginfunctions (Used by TypeLight to take control over lights)
 *          - About Dialog
 *              - Show information about registered types
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 *              - Show information about glu and glut
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 *          - Process Manager
 *              - Replaced Mutex by semaphore for waiting that a thread starts (mutex unlock does not work across threads in qt 4.6)
 *              - Bugfix when using blocking mode for new threads
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 *          - File Dialog
 *              - Fixed problems with keyboard interaction
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 *          - Scripting
 *              - Fixed bug with scriptdir not set correctly on command line open
 *              - Made core.loadObject scriptable (automatically detects right file plugin to load object)
 *              - Fixed bug in scripted saveObject function where supported type was not correctly detected
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 *              - Fixed bug when converting matrix and vector types between scripting and core
 *              - New function to add icon for view modes via script
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 *          - Debugging
 *              - Windows debugging console for cerr and cout when building windows debug version
 *              - Increased stack frame size when doing debugging.
 *          - Bugfixes
 *              - Bugfix for segfault on exit
 *              - Bugfix for simple viewer and qt 4.6
 *          - BSP Tree
 *              - Faster generation
 *              - Tree, Ray intersection (find closest triangle hit by ray)
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 *          - Plugin Handling
 *              - Parallel plugin loader (The plugins are preloaded in parallel. This gives a large speedup on startup)  
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 *          - Added a global picking dialog to choose an object an algorithm should work on (OpenFlipper/publicWidgets)
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 *          - Added Function to find the object to a node (Based on BaseObjectData)
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 *          - Introduced update types to control partial uptdates (color,topology,geometry,...)
 *          - Added region picking functions ( render picking and get a region of the picking )
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 *          - Removed unused update type
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 *          - Sanity checks on startup (Check OpenGL capabilities,library versions)
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 *      - <b>Object Types</b>
 *          - New Light Object
 *          - New Sphere Object
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 *          - New BSpline Curve Object
 *          - New BSpline Surface Object
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 *      - <b>Interfaces</b>
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 *          - BackupInterface
 *              - Full redesign
 *              - Multiple restore stages (before, do restore, after restore
 *              - External restore and backup signals/slots
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 *          - BaseInterface
 *              - Added a new parameter to updatedObject which defies the update type (e.g. Topology, Geometry, selection)
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 *          - FileInterface
 *              - Support writing multiple objects into one file
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 *          - TextureInterface
 *              - updated textureInterface to save textures (including multitextures)
 *          - PluginFunctions
 *              - New function to directly set lookAt
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 *              - Improved error handling in some functions
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 *          - ThreadInterface
 *              - Jobid is now passed to thread and the slots to identify sender
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 *          - Types
 *              - Added a function to check if types exist
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 *      - <b>UI</b>
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 *          - Improved mouse interaction(translation with middle mouse button is done in world coordinates now)
 *          - Added Context Menus to view modes (Depending on view mode context menus can be hidden now)
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 *          - Added rotation locking to context menu for view settings.
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 *          - Options
 *              - Added functions to reset to factory settings
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 *      - <b>ACG</b>
 *          - Bugfix for glstate functions returning fovy and aspect ratio
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 *          - Added gluError handling function
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 *          - New PICK_SPLINE Pickmode added
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 *          - Draw Modes
 *              - Fixed bug with increment operator for drawmodes (shift in underlying bitset)
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 *              - Added Cells Draw Mode
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 *          - SceneGraph
 *              - Fixed picking multipass bug where picking failed when blending or other color changing enter and leave functions where present
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 *          - GlutPrimitive Node
 *              - Fixed bounding box computation which was centered around origin and not around center of object
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 *              - Now handles multiple primitives in one node( and different colors for each of the primitives)
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 *              - Includes a rotation to set the orientation of the objects
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 *              - DrawMode SOLID_FACES_COLORED supported
 *          - MaterialNode
 *              - Add extra class to store all Material Information
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 *          - PointNode
 *              - Use Vec3d
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 *              - Fixed bug in pointnode double was send to OpenGL as float 
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 *          - LineNode
 *              - Use Vec3d
 *          - MeshNode2
 *              - Fixed bug where stripes are sometimes not updated correctly
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 *              - Fixed pick face bug, where picking buffer was updated to late
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 *              - Fixed bug with point only meshes, where face and edge buffers were accessed but not there.
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 *              - When updating colors, invalidate face and edge buffers too ( otherwise no update is done)
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 *              - Be more carefull and check if mesh properties used for redering vanished between render passes (e.g. textures after restore from backups)
 *          -QtTranslationManipulatorNode
 *              - Added possibility to add QVariants to the node
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 *          - SceneGraphWidget
 *              - Added system to register a widget for new nodes without changing the widget code.
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 *          - Geometry
 *              - Added more documentation to some algorithms
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 *              - New functions 
 *                  - Distances to planes
 *                  - Projections (Point->Triangle, Point->Plane )
 *                  - Intersection Ray, Axis aligned Bounding Box
 *                  - Intersection Ray, triangle
 *              - Quaternions
 *                  - changed to template Vector function for rotate
 *                  - disabled matrix constructor
 *                  - added print_info function
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 *              - Math_Tools/GeometryFunctions.hh integrated into ACG/Geometry/Algorithms.hh
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 *      - <b>New Plugins</b>
 *          - TypeLight
 *              - New object type handling light sources
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 *          - TypeSphele
 *              - Simple sphere type
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 *          - FileLight
 *              - Support for reading and writing light information
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 *          - Slice
 *              - Slicing plugin. Adds clipping planes to render only part of the scene
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 *      - <b>Plugins</b>
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 *          - All
 *              - Converted all plugins to new updatedObject formats
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 *          - Color 
 *              - Fixed wrong interface definitioni causing plugins not visible in ui menus (Thanks to Sergei Migdalskiy for reporting this bug)
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 *          - DataControl
 *              - Support for Light sources
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 *              - Fixed Bug where delete key was not catched anymore in QT 4.6
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 *          - FileOFF
 *              - non-manifold inputs are now duplicated and added as manifold meshes (These duplicates are marked in the OpenMesh status flag) 
 *          - FileOBJ
 *              - non-manifold inputs are now duplicated and added as manifold meshes (These duplicates are marked in the OpenMesh status flag) 
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 *          - INI
 *              - Support Light sources
 *              - Write material data for all objects with materialnode
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 *          - IsoTropic Remesher
 *              - Process indicator added
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 *          - Info Plugin
 *              - Fixed unsigned int/int conversion problem resulting in wrong genus computation
 *              - Fixed crash when infobar is not setup and objects are created ( fixed by initializing it earlier)
 *              - Don't output dihedral angles for no or one face
 *          - Selection
 *              - Fixed bounding box update for selection sphere
 *              - emit updatedobject on color change
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 *              - BSpline Selections
 *              - Scripting for controling current selection mode
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 *          - TextureControl
 *              - Fixed bug when trying to create textures for lights (?!!)
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 *              - Fixed wrong interface definitioni causing plugins not visible in ui menus (Thanks to Sergei Migdalskiy for reporting this bug)
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 *              - Backup interface support (copy constructors for per object datas and restore functions)
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 *          - Topology Plugin
 *              - Added missing updates
 *          - Info Plugin
 *              - Fixed unsigned int/int conversion problem resulting in wrong genus computation
 *              - Fixed crash when infobar is not setup and objects are created ( fixed by initializing it earlier)
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 *              - Don't output dihedral angles for no or one face
 *          - ViewControl
 *              - Check if types exist before adding context menues (avoids warning)
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 *          - VSI Plugin
 *              - Fix script generation for qt 4.6 ( in -> input rename as in causes a parse error )
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 *              - Fixed draw errors on zooming
 *              - Additional Metadata for other algorithms
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 *              - Fixed bug when converting matrix and vector types between scripting and core
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 *      - <b>Documentation</b>
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 *          - Refactored documentation files ( One documentation directory, build targets)
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 *          - Internal help files (qhc) are now searched automatically ( no need to specify at build time anymore!)
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 *          - Added docs for the glstate to describe internal projection matrix construction and parameters
 *          - Improved Documentation for the process manager
 *          - Improved building instructions
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 *      - <b>Others</b>
 *          - Fixed some crashes with Visual Studio 2010 builds (Some may still be there)
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 *      - <b>Build System</b>
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 *          - Added FFTW Finder
 *          - Added Petsc finder
 *          - Added a GLUT finder
 *          - Fixed the library dir in GLEW finder
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 *          - Make windows capable of choosing debug and release version of superlu
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 *          - Build ui files from ObjectTypes (Required to register Widgets to the scenegraph dialog)
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 *          - Branding support (looks in Toplevel/branding for image files)
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 *          - Improved compiler flag settings for unix systems (easier setting of additional compiler flags)
 *          - Made RELWITHDEBINFO build type working. (Release mode with debug symbols)
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 *          - Added doc target ( For core and plugins )
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 *          - Added search engine to help
 *          - Tutorial for ViewModeInterface
 *          - Tutorial for TypeInterface
 *          - Tutorial for ThreadingInterface
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 *          - Win
 *              - Fixup Bundle for Windows (Copies required DLLs to the build directory for easy execution)
 *          - Mac
 *              - Only build dmg not tgz on mac package on make package 
 *              - Fixed bug wher Mac bundles did not include the Qt Plugins (missing jpeg support/...)
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 * - <b>OpenFlipper 1.0 RC6 ( 2010/03/17 , 8742 )</b>
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 *      - <b>Core</b>
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 *          - Splitted File Plugins ( Now there are type plugins loaded first to register types and the file plugins to load data)
 *          - Moved loading code from OpenMesh to file plugins to support multiple data types
 *          - Changed handling of ObjectSelectionChanged
 *          - Updated internal types handling (directly initialized by core now) 
 *          - Handle object tree integration for BaseObjects automatically (No longer necessary to call the setParent Function)
 *          - selectionChanged, visibilityChanged and objectPropertiesChanged are now handled internally. If One of these changes, the signals
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 *                will be emitted by the core and passed to the plugins.
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 *          - Basic implementation to copy per Object data along with copied object
 *          - Implemented drag and drop for files to OpenFlipper
 *          - Fixes for building with QT 4.6
 *          - Added a map to find objects in the objectTree (large speedup when handling multiple objects)
 *          - Internal counters for targets, sources and objects avoiding iterations across all objects ( another speedup)
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 *      - <b>Plugin interface changes</b>
 *              - Changed PluginFunctions to return 0 object for identifier -1
 *              - Provide a QSettings interface to store per Plugin settings (called OpenFlipperSettings in globaloptions)
 *              - Core manages objectSelectionChanged, visibilityChanged and objectPropertiesChanged. (Do not emit these signals in your plugin anymore)
 *              - Added TypeInterface to register types from plugins (These plugins will be loaded first!)
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 *              - Improvements to status bar interface (now accepts arbitrary widgets)
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 *              - Renamed type idList to IdList
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 *              - Process manager added
 *              - Updated updateObject functionality which can specify the type of updates now
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 *      - <b>DataTypes</b> 
 *              - Added Plane Datatype and plugin
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 *              - Rewrote the mesh rendering node (now handling textures for poly meshes)
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 *      - <b>Internal changes</b>
 *              - Updated internal types handling (directly initialized by core now) 
 *      - <b>UI</b>
 *              - Updated cursors (new cursors for some modes)
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 *              - Fixed hotspot of some cursors
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 *              - Updated Icons 
 *                      - New Icons for Object Types (Group,Plane Icon)
 *                      - Icons for Datacontrol Context Menu
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 *              - Updated About dialog to include used compiler for OpenFlipper
 *              - Improved logger widget with filtering option
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 *      - <b>Scripting</b>
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 *              - Implimented new datatype representation which is also available in scripting now
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 *      - <b>GL Handling</b>
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 *              - Function to get maximum texture units
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 *      - <b>Plugins</b>
 *              - File Plugins
 *                      - New OBJ and OFF readers/writers which are independent of OpenMesh now
 *                      - OBJ groups
 *                      - Fixed errors reading OBJ files containing tabs
 *                      - Basic support for splines and spline surfaces in OBJ files
 *                      - Support for binary OFF files not following the specification ( without face color index )
 *              - Choose between opening meshes as triangle or poly mesh
 *                      - Added a default loading dialog
 *              - Plugin Info
 *                      - Shows number of primitives for open objects in the status bar
 *              - Plugin Datacontrol
 *                      - Some gui reworks
 *                      - Use new signal processing correctly
 *                      - RPC Function for grouping now returns the id of the group
 *                      - RPC Function to ungroup
 *              - Plugin Decimater
 *                      - Enable Normal deviation constraint by default
 *                      - Correctly set maximum for sliders
 *              - Plugin IsoTropic Remesher
 *                      - respect boundaries and edge features
 *              - Plugin Selection
 *                      - Create mesh from selection added
 *              - Plugin Move
 *                      - Added function to hide Manipulators
 *                      - Added some Icons
 *                      - Fixed iterator bug causing slow operations
 *              - Plugin ViewControl
 *                      - Don't set draw mode for all nodes
 *              - Plugin VSI
 *                      - New Plugin to create scripts via a visual scripting interface
 *      - <b>ACG</b>
 *              - Switched Bounding Box action to doubles
 *              - added Quaternion exponential, logarithm and from_rotation_matrix construction
 *              - Removed assertions in GLSL Shader Utils and replaced them by warnings (To support graphics cards without shaders)
 *              - Reimplementation of the drawmode which is now a separate class
 *      - <b>Build system</b>
 *              - Finder for libpre
 *              - Finder for libxml2
 *              - Updated OpenMesh Finder
 *              - New Option to enable stl vector checking
 *              - First tests to enable cross compiling
 *  
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 * - <b>OpenFlipper 1.0 RC5 ( 10.26.2009, 7508 )</b>
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 *   - <b>UI</b>
 *     - Updated the view modes
 *         - added toolbars to view modes
 *         - New widget for configuring view modes
 *     - First person navigation mode
 *         - Added basic implementation for first person navigation in the scene (Keys wasd + mouse)
 *   - <b>Rendering</b>
 *     - Support stereo mode for  Philips 42-inch autostereoscopic 3D Displays
 *   - <b>Plugin interface changes</b>
 *     - Toolbox interface (Initialize_toolbox is removed. please add the code from this function to initialize plugin and emit addToolbox there)
 *     - Removed global access header
 *   - <b>Plugins</b>
 *     - Plugin Info
 *         - Updated Info plugin (new user interface and more info about meshes)
 *     - Plugin Move
 *         - Only scale manipulators if move plugin is active
 *         - Fixed normal update in move plugin
 *         - Fixed multiple connections in move plugin resulting in slow movement
 *     - Plugin Datacontrol
 *         - Fixed double entries in datacontrol
 *     - <b>Internal changes</b>
 *     - Changed ordering of main scenegraph nodes (and added pluginfunctions to add new nodes)
 *   - <b>Documentation</b>
 *     - refactor the documentation
 *     - adjust to changes
 *   - <b>Build system</b>
 *     - Add cmake configurations for object types
 *     - parse and integrate Qr resource files for plugins
 *     - Added lib subdirectory which is automatically build when a cmakelists file exists
 *   - <b>General bugfixes</b>
 *     - Fixed bug where rotation center and scene center interfered
 *     - Fixed translation in plane object
 *   - <b>Internal libs</b>
 *      - Updated OpenMesh to RC4 
 * 
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 * - <b>OpenFlipper 1.0 RC4 ( 09.29.2009 ,7205)</b>
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 *      - Isotropic Remesher Plugin
 *      - Latest OpenMesh Version
 *      - Bugfixes
 * 
 * 
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 *  - <b>OpenFlipper 1.0 RC3 ( 07.10.2009)</b>
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 *      - Switch to cmake
 *      - Creation of Windows and MacOS Installer files
 *      - Bugfixes
 * 
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 * - <b>OpenFlipper 1.0 RC2 ( 04.19.2009)</b>
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 *   - Cmake support added .. needs more testing
 * 
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 * - <b>OpenFlipper 1.0 RC1 ( 03.27.2009 )</b>
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 *   - Initial Release
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 */