bool InstancesManagerImpl::_initSkinning(osg::Geometry& geom, const image_data& id )
{
osg::Geometry& source = geom;
osg::Vec3Array* positionSrc = dynamic_cast<osg::Vec3Array*>(source.getVertexArray());
if (!positionSrc)
{
OSG_WARN << "InstancedAnimationManager no vertex array in the geometry " << geom.getName() << std::endl;
return false;
}
osg::ref_ptr<osg::Program> cSkinningProg = creators::createProgram("skininst2").program;
cSkinningProg->setName("SkinningShader");
const int attribIndex = cAttribSkinningBaseIndex;
int nbAttribs = id.bonesWeights.size();
for (int i = 0; i < nbAttribs; i++)
{
osg::ref_ptr<osg::Vec4Array> array = new osg::Vec4Array(osg::Array::BIND_PER_VERTEX);
const image_data::weights_t& w = id.bonesWeights[i];
for (unsigned j = 0; j < w.size(); j+=id.divisor)
{
array->push_back(osg::Vec4(w.at(j),w.at(j+1),w.at(j+2),w.at(j+3)));
}
std::stringstream ss;
ss << "boneWeight" << i;
cSkinningProg->addBindAttribLocation(ss.str(), attribIndex + i);
geom.setVertexAttribArray(attribIndex + i, array);
OSG_INFO << "set vertex attrib " << ss.str() << std::endl;
}
osg::ref_ptr<osg::StateSet> ss = geom.getOrCreateStateSet();
ss->addUniform(new osg::Uniform("nbBonesPerVertex", id.bonesPerVertex));
ss->setAttributeAndModes(cSkinningProg.get());
return true;
}
void
GeometryValidator::apply(osg::Geometry& geom)
{
if ( geom.getVertexArray() == 0L )
{
OE_NOTICE << LC << "NULL vertex array!!\n";
return;
}
unsigned numVerts = geom.getVertexArray()->getNumElements();
if ( numVerts == 0 )
{
OE_NOTICE << LC << "No verts!! name=" << geom.getName() << "\n";
return;
}
std::set<osg::BufferObject*> _vbos;
osg::Geometry::ArrayList arrays;
geom.getArrayList(arrays);
for(unsigned i=0; i<arrays.size(); ++i)
{
osg::Array* a = arrays[i].get();
if ( a )
{
if ( a->getBinding() == a->BIND_OVERALL && a->getNumElements() != 1 )
{
OE_NOTICE << LC << "Found an array with BIND_OVERALL and size <> 1\n";
}
else if ( a->getBinding() == a->BIND_PER_VERTEX && a->getNumElements() != numVerts )
{
OE_NOTICE << LC << "Found BIND_PER_VERTEX with wrong number of elements (expecting " << numVerts << "; found " << a->getNumElements() << ")\n";
}
_vbos.insert( a->getVertexBufferObject() );
}
else
{
OE_NOTICE << LC << "Found a NULL array\n";
}
}
if ( _vbos.size() != 1 )
{
OE_NOTICE << LC << "Found a Geometry that uses more than one VBO (non-optimal sharing)\n";
}
const osg::Geometry::PrimitiveSetList& plist = geom.getPrimitiveSetList();
std::set<osg::BufferObject*> _ebos;
for( osg::Geometry::PrimitiveSetList::const_iterator p = plist.begin(); p != plist.end(); ++p )
{
osg::PrimitiveSet* pset = p->get();
osg::DrawArrays* da = dynamic_cast<osg::DrawArrays*>(pset);
if ( da )
{
if ( da->getFirst() >= numVerts )
{
OE_NOTICE << LC << "DrawArrays: first > numVerts\n";
}
if ( da->getFirst()+da->getCount() > numVerts )
{
OE_NOTICE << LC << "DrawArrays: first/count out of bounds\n";
}
if ( da->getCount() < 1 )
{
OE_NOTICE << LC << "DrawArrays: count is zero\n";
}
}
bool isDe = pset->getDrawElements() != 0L;
osg::DrawElementsUByte* de_byte = dynamic_cast<osg::DrawElementsUByte*>(pset);
if ( de_byte )
{
validateDE(de_byte, 0xFF, numVerts );
_ebos.insert( de_byte->getElementBufferObject() );
}
osg::DrawElementsUShort* de_short = dynamic_cast<osg::DrawElementsUShort*>(pset);
if ( de_short )
{
validateDE(de_short, 0xFFFF, numVerts );
_ebos.insert( de_short->getElementBufferObject() );
}
osg::DrawElementsUInt* de_int = dynamic_cast<osg::DrawElementsUInt*>(pset);
if ( de_int )
{
validateDE(de_int, 0xFFFFFFFF, numVerts );
_ebos.insert( de_int->getElementBufferObject() );
}
if ( pset->getNumIndices() == 0 )
{
OE_NOTICE << LC << "Primset: num elements = 0; class=" << pset->className() << ", name=" << pset->getName() << "\n";
}
else if ( pset->getType() >= GL_TRIANGLES && pset->getNumIndices() < 3 )
{
OE_NOTICE << LC << "Primset: not enough indicies for surface prim type\n";
}
else if ( pset->getType() >= GL_LINE_STRIP && pset->getNumIndices() < 2 )
{
OE_NOTICE << LC << "Primset: not enough indicies for linear prim type\n";
}
else if ( isDe && pset->getType() == GL_LINES && pset->getNumIndices() % 2 != 0 )
{
OE_NOTICE << LC << "Primset: non-even index count for GL_LINES\n";
}
}
if ( _ebos.size() != 1 )
{
OE_NOTICE << LC << "Found a Geometry that uses more than one EBO (non-optimal sharing)\n";
}
}