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Typos fixed.

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Robert Osfield 2003-07-26 22:32:19 +00:00
parent a2eaa7bd0c
commit cd305a97a2
1 changed files with 11 additions and 11 deletions
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NEWS.txt
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@ -13,38 +13,38 @@ OSG News (most significant items from ChangeLog)
both reading and writing of all core osg nodes, including inlining of compressed
and non compressed imagery.
The native database paging support,providived by the new osg::PageLOD and osgDB::DatabasePager,
The native database paging support,provided by the new osg::PageLOD and osgDB::DatabasePager,
achieves constant frame rate through threading of the database reading, and time based
incremental compile and delete of display lists, vertex_buffer_objects and texture objects.
A new TextureObjectManager class also caches a list of expired texture objects for reuse,
and allows new newly loading imagery to reuse expired texture objects, with the imagery
automatically subloaded to the reused texture objects. This reuse happens transparently
and benifits other OSG usages such as the OSG's Terrapage loader.
and benefits other OSG usages such as the OSG's Terrapage loader.
To provide support multi-thread operation of the OSG, such as multi-thread database paging
and multi-threaded, multi-window graphics enabled by OpenProducer, the OpenSceneGraph and
OpenProducer have now adopted the OpenThreads threading library, osgDB and osgProducer now
depend upon it. OpenThreads is open source, light weight, cross platform C++ threading
which encapsulates the low level, platform specific threading API calls. Currently pthreads
under Unix and Win32 threads under Windows are supported, with Sgi Sprock threads to be
under Unix and Win32 threads under Windows are supported, with Sgi sproc threads to be
released very soon. The OpenThreads project website can be found at http://openthreads.sf.net.
The new .ive binary plugin was developed by Uni-C's VR-Center, and kindly submitted as
open source, adds support for binary reading and writing OSG nodes drawable and state
(including compressed/mipmapped) textures. The .ive format produces a much faster
load times and smaller file size then native ASCII .osg format. Load times for .ive
files are also 10-20x faster then equivilant OpenFlight .flt and load in an already
optimised scene graph form making it much more suitable for paging. Files can be
files are also 10-20x faster then equivalent OpenFlight .flt and load in an already
optimized scene graph form making it much more suitable for paging. Files can be
converted easily using the osgconv utility : osgconv myfile.flt myfile.ive
The new osgGL2 nodekit library adds support for the OpenGL2.0 vertex ProgramObect and fragment
ShaderObject's recently ratified by the OpenGL ARB, . The osgGL2 uses the extension have local
prototypes which allow them to be compiled even in the absence of OpenGL headers that don't
support the GL2 extension, allowing to port to all platform, and at runtime the extensions are
querried for and used if available. At time of release only 3DLabs WildcatVP series supported
queried for and used if available. At time of release only 3DLabs WildcatVP series supported
this extension at runtime, but other graphics cards and manufactures will be releasing GL2
extension very soon and will be automatically supported by osgGL2. The osgGL2 was developed
by Mike Weiblen at 3DLabs whomn have kindly submitted osgGL2 as open source and for inclusion
by Mike Weiblen at 3DLabs whom have kindly submitted osgGL2 as open source and for inclusion
with the OSG distribution.
The ARB_fragment_program, ARB_vertex_buffer_object and ARB_vertex_program attributes are
@ -52,7 +52,7 @@ OSG News (most significant items from ChangeLog)
encapsulates the ARB_fragment_program which is supported by the recent graphics cards
from NVidia, ATI and 3DLabs. Support for ARB_vertex_buffer_object and ARB_vertex_program
attributes have been added to the osg::Geometry class. The ARB_vertex_buffer_object extension
can boost peformance by as much as 50% when working on geometry bound data sets.
can boost performance by as much as 50% when working on geometry bound data sets.
Two new image loaders, dds and pnm, and a 3dc point cloud have been added. The .dds plugin
adds support for compressed & mipped mapped imagery, making it ideal for applications where
@ -77,8 +77,8 @@ OSG News (most significant items from ChangeLog)
for tasks such as building a environmental texture maps.
slideshow3D is a presentation tool which use a scene graph to store a render set of slides, each
slide containing layers which can contain bullet points, paragraph, imagergy and 3d animated
models - and is effictively a 3D powerpoint. The presentations can be built seperately and stored in a .osg file or created by
slide containing layers which can contain bullet points, paragraph, imagery and 3d animated
models - and is effectively a 3D power point. The presentations can be built separately and stored in a .osg file or created by
slideshow3D via an xml file, two examples - introduction.xml and models.xml, which are included
in the OpenSceneGraph-Data-0.9.5 data distribution. slideshow3D depends upon libxml2 for parsing
the xml files.
@ -92,7 +92,7 @@ OSG News (most significant items from ChangeLog)
Camera style convince set and get methods to osgUtil::SceneView, consolidating
previous functionality that was provided by both osg::SceneView and osg::Camara into one place.
This move has made osg::Camera redundent so has it been removed to avoid confusion,
This move has made osg::Camera redundant so has it been removed to avoid confusion,
usage inconsistencies and bloat of core libraries.
The long time deprecated osg::GeoSet has been removed, to aid migration of old .osg datasets