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ejcoumans
211
Extras/FCollada/FCDocument/FCDMaterial.cpp
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211
Extras/FCollada/FCDocument/FCDMaterial.cpp
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/*
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Copyright (C) 2005-2006 Feeling Software Inc.
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MIT License: http://www.opensource.org/licenses/mit-license.php
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*/
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/*
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Based on the FS Import classes:
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Copyright (C) 2005-2006 Feeling Software Inc
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Copyright (C) 2005-2006 Autodesk Media Entertainment
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MIT License: http://www.opensource.org/licenses/mit-license.php
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*/
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#include "StdAfx.h"
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#include "FCDocument/FCDocument.h"
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#include "FCDocument/FCDAnimated.h"
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#include "FCDocument/FCDEffect.h"
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#include "FCDocument/FCDEffectParameter.h"
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#include "FCDocument/FCDEffectParameterFactory.h"
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#include "FCDocument/FCDEffectParameterList.h"
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#include "FCDocument/FCDMaterial.h"
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#include "FUtils/FUStringConversion.h"
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#include "FUtils/FUDaeParser.h"
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#include "FUtils/FUDaeWriter.h"
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#include "FUtils/FUUniqueStringMap.h"
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using namespace FUDaeParser;
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using namespace FUDaeWriter;
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FCDMaterial::FCDMaterial(FCDocument* document) : FCDEntity(document, "VisualMaterial")
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{
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effect = NULL;
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parameters = new FCDEffectParameterList(GetDocument(), true);
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ownsEffect = false;
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}
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FCDMaterial::~FCDMaterial()
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{
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if (ownsEffect) SAFE_DELETE(effect);
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effect = NULL;
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SAFE_DELETE(parameters);
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techniqueHints.clear();
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}
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// Cloning
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FCDMaterial* FCDMaterial::Clone()
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{
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FCDMaterial* clone = new FCDMaterial(GetDocument());
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FCDEntity::Clone(clone);
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if (effect != NULL)
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{
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clone->ownsEffect = true;
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clone->effect = effect->Clone();
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}
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SAFE_DELETE(clone->parameters);
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clone->parameters = parameters->Clone();
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return clone;
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}
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#ifdef __VISUALC__
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#include <crtdbg.h>
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#endif // __VISUALC__
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// Flatten the material: remove all the modifier parameters from the parameter list, permanently modifying their base parameter
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void FCDMaterial::Flatten()
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{
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for (FCDEffectParameterList::iterator itP = parameters->begin(); itP != parameters->end(); ++itP)
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{
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FCDEffectParameterList generators;
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if ((*itP)->IsModifier())
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{
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// Overwrite the generators
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FindParametersByReference((*itP)->GetReference(), generators);
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for (FCDEffectParameterList::iterator itQ = generators.begin(); itQ != generators.end(); ++itQ)
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{
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if ((*itP) != (*itQ))
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{
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(*itP)->Overwrite(*itQ);
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}
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}
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}
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else
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{
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// Add this parameter to hierarchy below
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if (effect != NULL) effect->AddParameter((*itP)->Clone());
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}
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}
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CLEAR_POINTER_VECTOR(*parameters);
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if (effect != NULL) effect->Flatten();
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}
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void FCDMaterial::AddParameter(FCDEffectParameter* parameter)
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{
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parameters->push_back(parameter);
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}
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// Look for the effect parameter with the correct semantic, in order to bind/set its value
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FCDEffectParameter* FCDMaterial::FindParameterBySemantic(const string& semantic)
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{
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return (effect != NULL) ? effect->FindParameterBySemantic(semantic) : NULL;
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}
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void FCDMaterial::FindParametersBySemantic(const string& semantic, FCDEffectParameterList& _parameters)
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{
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parameters->FindSemantic(semantic, _parameters);
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if (effect != NULL) effect->FindParametersBySemantic(semantic, _parameters);
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}
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void FCDMaterial::FindParametersByReference(const string& reference, FCDEffectParameterList& _parameters)
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{
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parameters->FindReference(reference, _parameters);
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if (effect != NULL) effect->FindParametersByReference(reference, _parameters);
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}
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// Parse COLLADA document's <material> element
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FUStatus FCDMaterial::LoadFromXML(xmlNode* materialNode)
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{
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CLEAR_POINTER_VECTOR(*parameters);
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FUStatus status = FCDEntity::LoadFromXML(materialNode);
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if (!status) return status;
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if (!IsEquivalent(materialNode->name, DAE_MATERIAL_ELEMENT))
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{
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return status.Warning(FS("Unknown element in material library."), materialNode->line);
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}
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// Read in the effect pointer node
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xmlNode* effectNode = FindChildByType(materialNode, DAE_INSTANCE_EFFECT_ELEMENT);
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if (effectNode != NULL)
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{
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FUUri url = ReadNodeUrl(effectNode);
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if (!url.prefix.empty())
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{
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return status.Warning(FS("Externally referenced effects are not supported. Material: ") + TO_FSTRING(GetDaeId()), effectNode->line);
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}
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else if (url.suffix.empty())
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{
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return status.Warning(FS("Empty material's <instance_effect> definition. Should instantiate an effect from the effect's library. Material: ") + TO_FSTRING(GetDaeId()), effectNode->line);
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}
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effect = GetDocument()->FindEffect(url.suffix);
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// Read in the parameter modifications
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for (xmlNode* child = effectNode->children; child != NULL; child = child->next)
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{
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if (child->type != XML_ELEMENT_NODE) continue;
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if (IsEquivalent(child->name, DAE_FXCMN_SETPARAM_ELEMENT))
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{
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AddParameter(FCDEffectParameterFactory::LoadFromXML(GetDocument(), child, &status));
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}
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else if (IsEquivalent(child->name, DAE_FXCMN_HINT_ELEMENT))
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{
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FCDMaterialTechniqueHint& hint = *(techniqueHints.insert(techniqueHints.end(), FCDMaterialTechniqueHint()));
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hint.platform = TO_FSTRING(ReadNodeProperty(child, DAE_PLATFORM_ATTRIBUTE));
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hint.technique = ReadNodeProperty(child, DAE_REF_ATTRIBUTE);
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}
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}
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}
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else
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{
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// COLLADA 1.3 backward compatibility: look for the effect.
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if(effect != NULL)
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{
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//kind of a hack: swap the ids between the material and the effect and append
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//some weird extension to the effect id so that it doesn't conflict with anybody else.
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effect->RemoveDaeId();
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status = FCDEntity::LoadFromXML(materialNode);
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if (!status) return status;
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effect->SetDaeId(GetDaeId() + "_effect1.3");
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}
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}
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if (effect == NULL)
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{
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return status.Warning(FS("Unable to find effect for material: ") + TO_FSTRING(GetDaeId()), materialNode->line);
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}
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return status;
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}
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// Write out the <material> element to the COLLADA xml tree
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xmlNode* FCDMaterial::WriteToXML(xmlNode* parentNode) const
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{
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xmlNode* materialNode = WriteToEntityXML(parentNode, DAE_MATERIAL_ELEMENT);
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// The <instance_effect> element is required in COLLADA 1.4
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xmlNode* instanceEffectNode = AddChild(materialNode, DAE_INSTANCE_EFFECT_ELEMENT);
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if (effect != NULL)
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{
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AddAttribute(instanceEffectNode, DAE_URL_ATTRIBUTE, string("#") + effect->GetDaeId());
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// Write out the technique hints
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for (FCDMaterialTechniqueHintList::const_iterator itH = techniqueHints.begin(); itH != techniqueHints.end(); ++itH)
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{
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xmlNode* hintNode = AddChild(instanceEffectNode, DAE_FXCMN_HINT_ELEMENT);
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AddAttribute(hintNode, DAE_PLATFORM_ATTRIBUTE, (*itH).platform);
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AddAttribute(hintNode, DAE_REF_ATTRIBUTE, (*itH).technique);
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}
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// Write out the parameters
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for (FCDEffectParameterList::const_iterator itP = parameters->begin(); itP != parameters->end(); ++itP)
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{
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(*itP)->WriteToXML(instanceEffectNode);
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}
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}
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else
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{
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AddAttribute(instanceEffectNode, DAE_URL_ATTRIBUTE, string("#"));
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}
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FCDEntity::WriteToExtraXML(materialNode);
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return materialNode;
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}
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