void apply(osg::Geometry& geom)
{
geom.setUseDisplayList(false);
if (!_manualVertexAliasing) return;
osg::notify(osg::NOTICE)<<"Found geometry "<<&geom<<std::endl;
if (geom.getVertexArray())
{
setVertexAttrib(geom, _vertexAlias, geom.getVertexArray(), false, osg::Array::BIND_PER_VERTEX);
geom.setVertexArray(0);
}
if (geom.getNormalArray())
{
setVertexAttrib(geom, _normalAlias, geom.getNormalArray(), true);
geom.setNormalArray(0);
}
if (geom.getColorArray())
{
setVertexAttrib(geom, _colorAlias, geom.getColorArray(), false);
geom.setColorArray(0);
}
if (geom.getSecondaryColorArray())
{
setVertexAttrib(geom, _secondaryColorAlias, geom.getSecondaryColorArray(), false);
geom.setSecondaryColorArray(0);
}
if (geom.getFogCoordArray())
{
// should we normalize the FogCoord array? Don't think so...
setVertexAttrib(geom, _fogCoordAlias, geom.getFogCoordArray(), false);
geom.setFogCoordArray(0);
}
unsigned int maxNumTexCoords = geom.getNumTexCoordArrays();
if (maxNumTexCoords>8)
{
osg::notify(osg::NOTICE)<<"Warning: Ignoring "<<maxNumTexCoords-8<<" texture coordinate arrays, only 8 are currently supported in vertex attribute conversion code."<<std::endl;
maxNumTexCoords = 8;
}
for(unsigned int i=0; i<maxNumTexCoords; ++i)
{
if (geom.getTexCoordArray(i))
{
setVertexAttrib(geom, _texCoordAlias[i], geom.getTexCoordArray(i), false, osg::Array::BIND_PER_VERTEX);
geom.setTexCoordArray(i,0);
}
else
{
osg::notify(osg::NOTICE)<<"Found empty TexCoordArray("<<i<<")"<<std::endl;
}
}
}
void osgToy::FacetingVisitor::facet( osg::Geometry& geom )
{
// count #surfaces, exit if none
osg::Geometry::PrimitiveSetList& primitives = geom.getPrimitiveSetList();
osg::Geometry::PrimitiveSetList::iterator itr;
unsigned int numSurfacePrimitives=0;
for(itr=primitives.begin();
itr!=primitives.end();
++itr)
{
switch((*itr)->getMode())
{
case osg::PrimitiveSet::TRIANGLES:
case osg::PrimitiveSet::TRIANGLE_STRIP:
case osg::PrimitiveSet::TRIANGLE_FAN:
case osg::PrimitiveSet::QUADS:
case osg::PrimitiveSet::QUAD_STRIP:
case osg::PrimitiveSet::POLYGON:
++numSurfacePrimitives;
break;
default:
break;
}
}
if (!numSurfacePrimitives) return;
// exit if no vertices
osg::Vec3Array *coords = dynamic_cast<osg::Vec3Array*>(geom.getVertexArray());
if (!coords || !coords->size()) return;
// generate the normals
osg::Vec3Array *normals = new osg::Vec3Array(coords->size());
osg::TriangleIndexFunctor<FacetingOperator> ftif;
ftif.set( coords, normals );
geom.accept(ftif);
geom.setNormalArray( normals );
geom.setNormalIndices( geom.getVertexIndices() );
geom.setNormalBinding(osg::Geometry::BIND_PER_VERTEX);
geom.dirtyDisplayList();
}
