FGFS-4.1/OpenSceneGraph
4
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

From Paul Martz, "This change adds support for osg::Billboards to the OpenFlight exporter.

Browse Source 
It might seem odd that the change actually removes the stub apply(Billboard&) method, but it turns out Billboards are easily supported in subordinate routines of the existing apply(Geode&) method with s dynamic_cast, so there's no need for a separate apply(Billboard&)."
This commit is contained in:
Robert Osfield 2008-05-10 17:25:42 +00:00
parent e9589ebb49
commit 412717c151
3 changed files with 27 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
src/osgPlugins/OpenFlight/FltExportVisitor.cpp
View File

@ -28,7 +28,6 @@
#include <osgDB/FileUtils>
#include <osgDB/WriteFile>
#include <osg/Billboard>
#include <osg/Geode>
#include <osg/Geometry>
#include <osg/LightSource>
@ -336,6 +335,10 @@ FltExportVisitor::apply( osg::LightSource& node )
writePushTraverseWritePop( node );
}
// Billboards also go through this code. The Geode is passed
// to writeFace and writeMesh. If those methods successfully cast
// the Geode to a Billboard, then they set the template mode
// bit accordingly.
void
FltExportVisitor::apply( osg::Geode& node )
{
@ -436,21 +439,6 @@ FltExportVisitor::apply( osg::Geode& node )
// traverse( (osg::Node&)node );
}
void
FltExportVisitor::apply( osg::Billboard& node )
{
_firstNode = false;
ScopedStatePushPop guard( this, node.getStateSet() );
// TBD -- Not yet implemented, but HIGH priority.
// Face record -- HIGH
// Mesh record -- HIGH
writeMatrix( node.getUserData() );
writeComment( node );
writePushTraverseWritePop( node );
}
void
FltExportVisitor::apply( osg::Node& node )
{

1
src/osgPlugins/OpenFlight/FltExportVisitor.h
View File

@ -77,7 +77,6 @@ public:
virtual void apply( osg::Transform& node );
virtual void apply( osg::LightSource& node );
virtual void apply( osg::Geode& node );
virtual void apply( osg::Billboard& node );
virtual void apply( osg::Node& node );
virtual void apply( osg::ProxyNode& node );

29
src/osgPlugins/OpenFlight/expGeometryRecords.cpp
View File

@ -24,6 +24,7 @@
#include <osg/BlendFunc>
#include <osg/Geometry>
#include <osg/Geode>
#include <osg/Billboard>
#include <osg/io_utils>
#include <osg/Material>
#include <osg/Texture2D>
@ -249,10 +250,18 @@ FltExportVisitor::writeFace( const osg::Geode& geode, const osg::Geometry& geom,
}
}
// Check for blending. We're not a Billboard (TBD?)
// so use either FIXED_NO_ALPHA_BLENDING or FIXED_ALPHA_BLENDING.
// Set the appropriate template mode based
// on blending or Billboarding.
TemplateMode templateMode( FIXED_NO_ALPHA_BLENDING );
if ( ss->getMode( GL_BLEND ) & osg::StateAttribute::ON )
const osg::Billboard* bb = dynamic_cast< const osg::Billboard* >( &geode );
if (bb != NULL)
{
if( bb->getMode() == osg::Billboard::AXIAL_ROT )
templateMode = AXIAL_ROTATE_WITH_ALPHA_BLENDING;
else
templateMode = POINT_ROTATE_WITH_ALPHA_BLENDING;
}
else if ( ss->getMode( GL_BLEND ) & osg::StateAttribute::ON )
{
const osg::BlendFunc* bf = static_cast<const osg::BlendFunc*>(
ss->getAttribute(osg::StateAttribute::BLENDFUNC) );
@ -416,10 +425,18 @@ FltExportVisitor::writeMesh( const osg::Geode& geode, const osg::Geometry& geom
}
}
// Check for blending. We're not a Billboard (TBD?)
// so use either FIXED_NO_ALPHA_BLENDING or FIXED_ALPHA_BLENDING.
// Set the appropriate template mode based
// on blending or Billboarding.
TemplateMode templateMode( FIXED_NO_ALPHA_BLENDING );
if ( ss->getMode( GL_BLEND ) & osg::StateAttribute::ON )
const osg::Billboard* bb = dynamic_cast< const osg::Billboard* >( &geode );
if (bb != NULL)
{
if( bb->getMode() == osg::Billboard::AXIAL_ROT )
templateMode = AXIAL_ROTATE_WITH_ALPHA_BLENDING;
else
templateMode = POINT_ROTATE_WITH_ALPHA_BLENDING;
}
else if ( ss->getMode( GL_BLEND ) & osg::StateAttribute::ON )
{
const osg::BlendFunc* bf = static_cast<const osg::BlendFunc*>(
ss->getAttribute(osg::StateAttribute::BLENDFUNC) );