bool FArchiveXML::LoadGeometryInstance(FCDObject* object, xmlNode* instanceNode)
{
if (!FArchiveXML::LoadEntityInstance(object, instanceNode)) return false;
bool status = true;
FCDGeometryInstance* geometryInstance = (FCDGeometryInstance*)object;
// Look for the <bind_material> element. The others are discarded for now.
xmlNode* bindMaterialNode = FindChildByType(instanceNode, DAE_BINDMATERIAL_ELEMENT);
if (bindMaterialNode != NULL)
{
for (xmlNode* child = bindMaterialNode->children; child != NULL; child = child->next)
{
if (child->type != XML_ELEMENT_NODE) continue;
if (IsEquivalent(child->name, DAE_PARAMETER_ELEMENT))
{
FCDEffectParameter* parameter = geometryInstance->AddEffectParameter(FArchiveXML::GetEffectParameterType(child));
parameter->SetAnimator();
status &= FArchiveXML::LoadSwitch(parameter, ¶meter->GetObjectType(), child);
}
}
// Retrieve the list of the <technique_common><instance_material> elements.
xmlNode* techniqueNode = FindChildByType(bindMaterialNode, DAE_TECHNIQUE_COMMON_ELEMENT);
xmlNodeList materialNodes;
FindChildrenByType(techniqueNode, DAE_INSTANCE_MATERIAL_ELEMENT, materialNodes);
for (xmlNodeList::iterator itM = materialNodes.begin(); itM != materialNodes.end(); ++itM)
{
FCDMaterialInstance* material = geometryInstance->AddMaterialInstance();
status &= (FArchiveXML::LoadMaterialInstance(material, *itM));
}
}
else
{
// Blinding attempt to use the material semantic from the polygons as a material id.
FCDGeometry* geometry = (FCDGeometry*) geometryInstance->GetEntity();
if (geometry != NULL && geometry->HasType(FCDGeometry::GetClassType()) && geometry->IsMesh())
{
FCDGeometryMesh* mesh = geometry->GetMesh();
size_t polyCount = mesh->GetPolygonsCount();
for (size_t i = 0; i < polyCount; ++i)
{
FCDGeometryPolygons* polys = mesh->GetPolygons(i);
const fstring& semantic = polys->GetMaterialSemantic();
fm::string semanticUTF8 = TO_STRING(semantic);
semanticUTF8 = FCDObjectWithId::CleanId(semanticUTF8.c_str());
FCDMaterial* material = geometry->GetDocument()->FindMaterial(semanticUTF8);
if (material != NULL)
{
geometryInstance->AddMaterialInstance(material, polys);
}
}
}
}
geometryInstance->SetDirtyFlag();
return status;
}
