void
ControlCanvas::update()
{
//int bin = 999999;
for( ControlList::iterator i = _controls.begin(); i != _controls.end(); ++i )
{
Control* control = i->get();
if ( control->isDirty() || _contextDirty )
{
osg::Vec2f size;
control->calcSize( _context, size );
osg::Vec2f surfaceSize( _context._vp->width(), _context._vp->height() );
control->calcPos( _context, osg::Vec2f(0,0), surfaceSize );
osg::Geode* geode = _geodeTable[control];
geode->removeDrawables( 0, geode->getNumDrawables() );
DrawableList drawables;
control->draw( _context, drawables );
for( DrawableList::iterator j = drawables.begin(); j != drawables.end(); ++j )
{
j->get()->setDataVariance( osg::Object::DYNAMIC );
// j->get()->getOrCreateStateSet()->setRenderBinDetails( bin++, "RenderBin" );
geode->addDrawable( j->get() );
}
}
}
_contextDirty = false;
}
void
MeshConsolidator::run( osg::Geode& geode )
{
bool useVBOs = false;
// NOTE: we'd rather use the IndexMeshVisitor instead of our own code here,
// but the IMV does not preserve the user data attached to the primitive sets.
// We need that since it holds the feature index information.
//osgUtil::IndexMeshVisitor mesher;
//geode.accept(mesher);
// trivial bailout:
if ( geode.getNumDrawables() <= 1 )
return;
// list of geometries to consolidate and not to consolidate.
DrawableList consolidate, dontConsolidate;
// list of texture coordinate array image units in use
std::vector<unsigned> texCoordArrayUnits;
texCoordArrayUnits.reserve(32);
// sort the drawables:
for( unsigned i=0; i<geode.getNumDrawables(); ++i )
{
osg::Geometry* geom = geode.getDrawable(i)->asGeometry();
if ( geom )
{
if ( canOptimize(*geom) )
{
// convert all primitives to triangles.
convertToTriangles( *geom );
// NOTE!! tex/attrib array counts much already be equal.
if ( texCoordArrayUnits.size() == 0 )
{
for( unsigned u=0; u<32; ++u ) {
if ( geom->getTexCoordArray(u) != 0L )
texCoordArrayUnits.push_back( u );
}
if ( geom->getUseVertexBufferObjects() )
useVBOs = true;
}
consolidate.push_back(geom);
}
else
{
dontConsolidate.push_back(geom);
}
}
}
// start consolidating the geometries.
unsigned targetNumVertsPerGeom = 100000; //TODO: configurable?
DrawableList results;
unsigned numVerts = 0, numColors = 0, numNormals = 0;
DrawableList::iterator start = consolidate.begin();
for( DrawableList::iterator end = consolidate.begin(); end != consolidate.end(); )
{
osg::Geometry* geom = end->get()->asGeometry(); // already type-checked this earlier.
unsigned geomNumVerts = geom->getVertexArray()->getNumElements();
++end;
numVerts += geomNumVerts;
if ( geom->getColorArray() )
numColors += geom->getColorArray()->getNumElements();
if ( geom->getNormalArray() )
numNormals += geom->getNormalArray()->getNumElements();
if ( numVerts > targetNumVertsPerGeom || end == consolidate.end() )
{
OE_DEBUG << LC << "Merging " << ((unsigned)(end-start)) << " geoms with " << numVerts << " verts." << std::endl;
merge( start, end, numVerts, numColors, numNormals, texCoordArrayUnits, useVBOs, results );
start = end;
numVerts = 0, numColors = 0, numNormals = 0;
}
}
// re-build the geode:
geode.removeDrawables( 0, geode.getNumDrawables() );
for( DrawableList::iterator i = results.begin(); i != results.end(); ++i )
geode.addDrawable( i->get() );
for( DrawableList::iterator i = dontConsolidate.begin(); i != dontConsolidate.end(); ++i )
geode.addDrawable( i->get() );
}