Updated NEWS
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Robert Osfield
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NEWS.txt
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NEWS.txt
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OSG News (most significant items from ChangeLog)
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================================================
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6th August 2003 - OpenSceneGraph-0.9.7
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9th August 2004 - OpenSceneGraph-0.9.7
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>>> support for and generation of large scale geospatial whole earth databases, support for movies, with examples shadows and volume rendering.
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>>> support for and generation of large scale geospatial databases,
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>>> support for movies and examples of shadows and volume rendering.
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The 0.9.7 encompasses many improvements, bug fixes, new examples and significant new functionality, the most notable of which is
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a new osgTerrain library for generation of large scale geospatial databases.
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The 0.9.7 encompasses many improvements, bug fixes, new examples and
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significant new functionality, the most notable of which is a new
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osgTerrain library for generation of large scale geospatial databases.
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The new osgTerrain library and associated osgdem utility program allow users to uses moziacs of geospatial imagery and digital elevation maps
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to generate a complete paged database which can be used with standard OSG viewers, and users programs. By utilising GDAL to load the imagery
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and DEM's a wide range of geospatial formats are supported.
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The new osgTerrain library and associated osgdem utility program
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allows users to use moziacs of geospatial imagery and digital elevation
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maps to generate a complete paged database which can be used with
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standard OSG viewers, and users programs. By utilising GDAL to load the
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imagery and DEM's a wide range of geospatial formats are supported.
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The TerraPage plugin has also been rewritten ontop of the OSG's osg::PagedLOD and osgDB::DatabasePager which provides support for
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tile fallback mechansim to ensure that no holes or cracks appear in the databases being roamed, and to achieve constant frameframe
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via load balancing mechansisms with osgDB::DatabasePager.
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The TerraPage plugin has also been rewritten ontop of the OSG's
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osg::PagedLOD and osgDB::DatabasePager which provides support for the
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tile fallback mechanism to ensure that no holes or cracks appear in the
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databases being roamed, and to achieve constant frame rate via load
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balancing mechanisms with osgDB::DatabasePager.
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The osgDB::DatabasePager has been further improved to provide more configurable load balancing to allow application developers to
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achieve constrant framerates when using paged databases.
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The osgDB::DatabasePager has been further improved to provide more
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configurable load balancing which allows application developers to achieve
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constant frame rates when using paged databases.
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Double Vec & Matrix classes & CoordinateSystemNode/EllipsoidModel class have been introduced to better support browsing of large
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scale databases, and to provide a mechansim for tracking the local up orientation when roaming whole earth databases.
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Double Vec & Matrix classes & CoordinateSystemNode/EllipsoidModel class
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have been introduced to better support browsing of large scale databases,
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and to provide a mechanism for tracking the local up orientation when
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roaming whole earth databases.
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osgUtil has been enhanced with a improved triangle stipper class (osgUtil::TriStipVisitor), a new simplifier (osgUtil::Simplifer) for
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reducing triangle density of osg::Geometry leaves (utilised by osgTerrain to provide simplication of terrain tiles), improved and
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more configurable optimizer (osgUtil::Optimizer), a new utility class for compling and releasing OpenGL objects (osgUtil::GLObjectVisitor)
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replaces the prevsous and more limited DisplayListVisitor.
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osgUtil has been enhanced with:
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- an improved triangle tipper class (osgUtil::TriStipVisitor),
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- a new simplifier (osgUtil::Simplifer) for reducing triangle density of
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osg::Geometry leaves (utilised by osgTerrain to provide simplification
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of terrain tiles),
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- improved and more configurable optimizer (osgUtil::Optimizer),
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- a new utility class for compiling and releasing OpenGL objects
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(osgUtil::GLObjectVisitor) replaces the previous and more limited
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DisplayListVisitor.
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All the osgGA::MatrxManipulator's (used for camera manipulator etc) have been revamped with usage of doubles internally, and with
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tracking of the current CoordinateSystem if one is active, to be better support whole earth databases. All the MatrixManipulator
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have been extend to allow the setting of a user defined a home position. Two new manipulators have been introduced
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osgGA::TerrainManipulator, for roaming whole earth/terrain databases, and osgGA::TrackerManipulator which allows the camera to be
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All the osgGA::MatrxManipulator's (used for camera manipulator etc) have
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been revamped with usage of doubles internally, and with tracking of the
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current CoordinateSystem if one is active, to be better support whole
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earth databases. All the MatrixManipulators have been extend to allow
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the setting of a user defined home position. Two new manipulators have
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been introduced osgGA::TerrainManipulator, for roaming whole earth/terrain
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databases, and osgGA::TrackerManipulator which allows the camera to be
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attached to a node in the scene graph.
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Movie support under Linux and OSX via libMpeg3 and Quicktime respectively, which extend the new osg::ImageStream base class which
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allows application developers access to playing, pausing and rewinding movies.
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Movie support under Linux and OSX via libMpeg3 and Quicktime respectively,
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which extend the new osg::ImageStream base class which allows application
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developers access to playing, pausing and rewinding movies.
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The convertion utility osgconv has been extended to allow compression of textures and mipmap generation during conversion when
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writing to the native .ive binary format. Texture compression and pre computer mipmaps enable faster loading of databases
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and lower utilization of memory resources.
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Examples
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osgdem
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osgphotoalbum
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osgbluemarble
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osgtesselate
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osgsimulation
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osgdepthshadow
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osgsimplifier
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osgspacewarp
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osgdistortion
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osgsimple
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osgkeyboardmouse
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osgsimplepager
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osgmovie
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osgvolume
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The conversion utility osgconv has been extended to allow compression of
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textures and mipmap generation during conversion when writing to the native
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.ive binary format. Texture compression and pre computer mipmaps enable
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faster loading of databases and lower utilisation of memory resources.
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Write support added to JPG plugin.
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@ -66,11 +65,62 @@ OSG News (most significant items from ChangeLog)
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Pseudo loaders .trans, .rot and .scale have been added.
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Updated LWO, AC3D, BMP, IVE and FLT loaers.
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Updated LWO, AC3D, BMP, IVE and FLT loaders.
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osg::TexGenNode has been added to provide a mechanism for positioning OpenGL's texture coordinate generation planes.
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osg::TexGenNode has been added to provide a mechanism for positioning
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OpenGL's texture coordinate generation planes.
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Bug fixes.
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Fourteen new examples have been added:
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osgdem a utility for creating large scale geospatial paged
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database
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osgphotoalbum an example of how to use PagedLOD to dynamic generate
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geometry for paged in imagery
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osgbluemarble an example of how to build PagedLOD database for
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paging imagery
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osgtesselate - an example of how to use osgUtil::Tesselate to
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tessellate polygonal boundaries
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osgsimulation an example of how to use various features in osgSim.
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osgdepthshadow an example of how to implement shadows use depth
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shadow textures.
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osgsimplifier an example of how to use the new osgUtil::Simplifier.
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osgspacewarp an example of how to create a special effect that
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depends upon tracking the modelview matrix.
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osgdistortion an example of how to use prerendering of a texture to
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create a distortion effect.
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osgsimple a bare bones example of how to create a simple viewer
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using a Windowing toolkit, in this example using
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Producer, but is written so the example could easily
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be modified to work with other Windowing toolkit.
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osgkeyboardmouse adding to keyboard and mouse functionality on the
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osgsimple base.
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osgsimplepager adding database paging support to the osgsimple
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example.
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osgmovie an example which creates a quad to render a loaded
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movie file with - requires the LibMpeg3 (Linux) or
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Quicktime (OSX) plugin to work.
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osgvolume an example that reads a stack of 2d images to create
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a 3D texture, and creates a scene graph using
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standard OSG components (osg::ClipNode,
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osg::TexGenNode, osg::Billboard and
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osg::TexEnvCombine) to create a per per lit volume.
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Wrapping up the complete 0.9.7 release is a wide range of smaller features
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enhancement and many bug fixes.
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2nd October 2003 - OpenSceneGraph-0.9.6-2
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