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

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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
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29
src/osgPlugins/OpenFlight/expGeometryRecords.cpp
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@@ -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) );