GLC_lib
	OpenGL Library Class
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More over, GLC_lib 2.0 aimed to handle very large DMU (Digital mockup) to create fast free multi platform 3D viewers.

New Features :

• Add Frustum Culling and space partitioning using Octree
• Add 3D Binary serialized representation of 3DRep which can be compressed or not.
• Add a cache manager in order to speed up loading time of 3DXML file.
• Add render properties attached to GLC_3DViewInstance to assign specific rendering properties to an instance.
• Add the possibility to select a GLC_Mesh primitive (Triangles, Strip or Fan).
• Add the possibility to assign transparency to an instance.
• Add the possibility to assign a material to an instance.
• Add the possibility to assign materials to GLC_Mesh primitive.
• Add the possibility to save all supported 3D Format in a 3DXML ASCII V4 readable by the 3DXML player of Dassault systèmes.
• Add 3DWidgets base to create 3D manipulators.
• Add Cutting Plane 3Dwidget to easy add powerful manipulated cutting plane to your own application.
• Add the ability to display generic 3D wire composed of polylines.

Enhancements and Bug Fix :

• Add GLC_WireData as member to render mesh edges.
• All mesh based primitive inherits from GLC_Mesh.
• Improve 3DXML Support.
• Improve polygon triangulation (detecting convex polygon) 15% of gain.

Distribution and web Site.

• Added the possibility to built GLC_lib with Microsoft Visual studio 2008. (32 and 64 bits)

Distribution and web Site.

• Fisrt Alpha Version of GLC_Lib 2.0.0
• Add forum to the web site : Forum

New Features :

• Dassault Systemes 3DXML V3 and V4 file Support. (Only Ascii Version is support, the binary version is not open).
• Collada V1.4 file Support (Mesh, materials and scene graph).
• Static level of detail support. (LOD is used by 3DXML)
• New Mesh structure with : Triangles, Triangles Strip, Triangles Fan and Level Of Detail.
• Add some new primitives : Line, Point Sprite and rectangle.
• Use the library PQP to calcul minimum distance between mesh.
• New Scene Graph with References, Instances and Occurences.
• Add "Turn Table manipulator" additionally of the "Track Ball manipulator".

Enhancements and Bug Fix :

• Reduce memory consumption (New Mesh Structure).
• Add customizable set of class to handle camera manipulation and to display user Feed Back.
• A lot of refactoring.

Distribution and web Site.

• GLC Viewer removed. (See GLC_Player for a real application which use GLC_Lib)
• Add a new example : Collada Star Ship.

Bug Fix:

• Fix a bug in windows installer. Add missing folder "glext" and "lib3ds" in GLC_lib Include.

New Features :

• COFF file format support.
• Basic Shader support (GLSL).
• Use Vertex Buffer Object (VBO) instead of display list. If VBO is not supported use Vertex Array.
• Manage transparency by materials.

Enhancements and Bug Fix :

• Reduce memory consumption.
• Reduce 3ds loading time.
• Use selection based on color. Up to 10x faster.

New Features :

• Include lib3ds 1.3 source.
• 3D Studio file format (.3DS) support.
• STL file format. (.STL) support.
• OFF file format (.OFF) support.
• Add a set of geometry tools for non convex polygon partition into triangles.

Enhancements and Bug Fix :

• GLC_Mesh2 vertexs, normals and texture coordinate are now stored as float instead of double.
• OBJ with non convex polygon are now correctly rendered.
• Introduce distinction between points and vectors.
• Introduce glc namespace for function tools and constants.
• Introduce C++ Include conventions.
• Windows manual installation : Add intall target to simplify installation process.

GLC Viewer new features :

• Add the possibility to open 3DS, STL and OFF file format in adition of OBJ.

New Features :

• Mac OS X (intel) Support.
• Add first version of scene graph : GLC_World, GLC_Product GLC_Part and GLC_Node.
• Add the possibility to handle transparent GLC_Geometry in GLC_Collection.
• Add the possibility to hide GLC_Instance from GLC_Collection.
• Add the possibility to create a GLC_World class with GLC_ObjToWorld class.
• More Obj and mtl file type support.
• GLC_Mesh2 internal material are now implicity shared.

Enhancements and Bug Fix :

• Fix lightning problem with GLC_ImagePlane with texture.
• Removed some qDebug() call.

GLC Viewer new features :

• When opening an OBJ file, view an GLC_Instance for each mesh.

New Features :

• Instance support (last step before scene graph)
• Add the possibility to built rotation matrix with Euler angle.

Enhancements and Bug Fix :

• Fix memory leak in GLC_ObjToMesh2 class.
• Code optimisation in GLC_ObjToMesh2 class.
• When a problem occur while loading a OBJ file, add line number in exception description.
• Refactoring class's method..
• Fix some bug in GLC_ImagePlane class.
• Improve selection feedback performance for GLC_Mesh2 selection.

GLC Viewer new features :

• View the list of Instance in the current view.
• Selection of instance from list or 3D view.
• Define rotation of instance by Euler angle.
• Copy / Paste and paste as new added.

New Features :

• Load OBJ file without normal added.
• Reverse mesh normal.
• Selection feedback.
• Add Exceptions.

Enhancements and Bug Fix :

• Compilation OK with GCC 4.xx
• GLC_ObjToMesh2 completely rewrite.
• GLC_Texture can be creates before OpenGL rendering context.
• GLC_Factory use OpenGL rendering context instead of QGLWidget.

GLC Viewer new features:

• Create GLC_lib primitive (GLC_Point, GLC_Box, GLC_Circle and GLC_Cylinder).
• Edit scene's object.
• Remove a scene object.
• Edit object's material.
• Change background color or texture.
• View/edit camera parameters.
• Reframe on scene or selected Object.
• OBJ file loading in another thread.
• Exception handler when load OBJ file.

• Help Section updated.

• Download Section Updated.

• Web site remade.
• Examples section updated.
• Release GLC_lib 0.9.6 View CHANGE 0.9.6.log
• GLC_lib 0.9.6 principal change :
• Old GLC_Mesh, GLC_ObjToMesh, GLC_Face, GLC_Vertex class are removed from the library. (Replaced by GLC_Mesh2).
• New GLC_Factory class. A factory to built the principals GLC_lib Object.
• New GLC_CollectionNode class. A node which simplify the GLC_Collection class.
• New GLC_BoundingBox Class. A Bounding Box created by single geometry or entire collection.
• New GLC_Viewport capabilies : Reframe to a Bounding Box and calculate view near and far clipping plane. (Z buffer optimization).
• Add reframe and automatic depth of view calculation functionality to glcviewer.

• An automatic executable installer is available in the download area.

• Now Library Documentation generated by doxygen include source code.
• Release GLC_lib 0.9.5. View CHANGE0.9.5.log.
• Star wars "Trade federation tank model" in OBJ format from SCIFI 3D www.theforce.net/scifi3d/ added in download area.
• New Screenshots added.

• Example glc_viewer added : Examples.
• Link to QT4 Open Source Edition added : QT4 Open Source.
• Release GLC_lib 0.9.4. View CHANGE0.9.4.log.

• Example 8 added : Selection (Christmas tree decoration).
• Added Windows installation rubric.
• Release GLC_lib 0.9.3. View CHANGE.log.

• Example 7 added :Texture + Background image .
• Minor corrections.

• Example 6 added : Loading OBJ File.
• SourceForge Logo added to library documentation pages.

• English translation of the web site.

• Ajout de la rubrique téléchargement au site.
• Ajout de l'exemple 5 au site Web : Positionner des objets.

• Ajout de l'exemple 4 au site Web : Afficher plusieurs objets.
• Ajout des rubriques : "Aide" et "News"
• Livraison de la version 0.9.02 de GLC_lib intégrant une simplification de la procédure d'installation sous Linux.
• Correction d'un problème de compilation des exemples sous linux du à la distinction majuscule minuscule sur un include.

• Enregistrement de GLC_lib sur le site Web de sourceforge.
• Création du site Web de GLC_lib.
• Mise à disposition de la documentation de GLC_lib.
• Mise à disposition de la version Beta 0.9.01 de GLC_lib pour le téléchargement.
• Mise à disposition et explication des 3 exemples suivants :
• Affichage d'un Cercle.
• Manipulation du point de vue.
• Affichage d'un Cylindre.
• Mise en service du serveur CVS.