731 lines
23 KiB
C++
731 lines
23 KiB
C++
/// \file X3DExporter.cpp
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/// \brief X3D-format files exporter for Assimp. Implementation.
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/// \date 2016
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/// \author smal.root@gmail.com
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#ifndef ASSIMP_BUILD_NO_EXPORT
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#ifndef ASSIMP_BUILD_NO_X3D_EXPORTER
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#include "X3DExporter.hpp"
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// Header files, Assimp.
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#include "Exceptional.h"
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#include <assimp/Exporter.hpp>
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#include <assimp/IOSystem.hpp>
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using namespace std;
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namespace Assimp
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{
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void ExportSceneX3D(const char* pFile, IOSystem* pIOSystem, const aiScene* pScene, const ExportProperties* pProperties)
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{
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X3DExporter exporter(pFile, pIOSystem, pScene, pProperties);
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}
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}// namespace Assimp
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namespace Assimp
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{
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void X3DExporter::IndentationStringSet(const size_t pNewLevel)
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{
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if(pNewLevel > mIndentationString.size())
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{
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if(pNewLevel > mIndentationString.capacity()) mIndentationString.reserve(pNewLevel + 1);
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for(size_t i = 0, i_e = pNewLevel - mIndentationString.size(); i < i_e; i++) mIndentationString.push_back('\t');
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}
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else if(pNewLevel < mIndentationString.size())
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{
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mIndentationString.resize(pNewLevel);
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}
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}
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void X3DExporter::XML_Write(const string& pData)
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{
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if(pData.size() == 0) return;
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if(mOutFile->Write((void*)pData.data(), pData.length(), 1) != 1) throw DeadlyExportError("Failed to write scene data!");
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}
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aiMatrix4x4 X3DExporter::Matrix_GlobalToCurrent(const aiNode& pNode) const
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{
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aiNode* cur_node;
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std::list<aiMatrix4x4> matr;
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aiMatrix4x4 out_matr;
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// starting walk from current element to root
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matr.push_back(pNode.mTransformation);
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cur_node = pNode.mParent;
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if(cur_node != nullptr)
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{
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do
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{
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matr.push_back(cur_node->mTransformation);
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cur_node = cur_node->mParent;
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} while(cur_node != nullptr);
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}
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// multiplicate all matrices in reverse order
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for(std::list<aiMatrix4x4>::reverse_iterator rit = matr.rbegin(); rit != matr.rend(); rit++) out_matr = out_matr * (*rit);
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return out_matr;
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}
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void X3DExporter::AttrHelper_FloatToString(const float pValue, std::string& pTargetString)
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{
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pTargetString = to_string(pValue);
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AttrHelper_CommaToPoint(pTargetString);
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}
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void X3DExporter::AttrHelper_Vec3DArrToString(const aiVector3D* pArray, const size_t pArray_Size, string& pTargetString)
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{
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pTargetString.clear();
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pTargetString.reserve(pArray_Size * 6);// (Number + space) * 3.
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for(size_t idx = 0; idx < pArray_Size; idx++)
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pTargetString.append(to_string(pArray[idx].x) + " " + to_string(pArray[idx].y) + " " + to_string(pArray[idx].z) + " ");
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// remove last space symbol.
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pTargetString.resize(pTargetString.length() - 1);
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AttrHelper_CommaToPoint(pTargetString);
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}
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void X3DExporter::AttrHelper_Vec2DArrToString(const aiVector2D* pArray, const size_t pArray_Size, std::string& pTargetString)
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{
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pTargetString.clear();
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pTargetString.reserve(pArray_Size * 4);// (Number + space) * 2.
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for(size_t idx = 0; idx < pArray_Size; idx++)
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pTargetString.append(to_string(pArray[idx].x) + " " + to_string(pArray[idx].y) + " ");
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// remove last space symbol.
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pTargetString.resize(pTargetString.length() - 1);
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AttrHelper_CommaToPoint(pTargetString);
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}
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void X3DExporter::AttrHelper_Vec3DAsVec2fArrToString(const aiVector3D* pArray, const size_t pArray_Size, string& pTargetString)
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{
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pTargetString.clear();
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pTargetString.reserve(pArray_Size * 4);// (Number + space) * 2.
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for(size_t idx = 0; idx < pArray_Size; idx++)
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pTargetString.append(to_string(pArray[idx].x) + " " + to_string(pArray[idx].y) + " ");
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// remove last space symbol.
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pTargetString.resize(pTargetString.length() - 1);
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AttrHelper_CommaToPoint(pTargetString);
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}
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void X3DExporter::AttrHelper_Col4DArrToString(const aiColor4D* pArray, const size_t pArray_Size, string& pTargetString)
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{
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pTargetString.clear();
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pTargetString.reserve(pArray_Size * 8);// (Number + space) * 4.
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for(size_t idx = 0; idx < pArray_Size; idx++)
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pTargetString.append(to_string(pArray[idx].r) + " " + to_string(pArray[idx].g) + " " + to_string(pArray[idx].b) + " " +
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to_string(pArray[idx].a) + " ");
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// remove last space symbol.
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pTargetString.resize(pTargetString.length() - 1);
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AttrHelper_CommaToPoint(pTargetString);
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}
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void X3DExporter::AttrHelper_Col3DArrToString(const aiColor3D* pArray, const size_t pArray_Size, std::string& pTargetString)
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{
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pTargetString.clear();
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pTargetString.reserve(pArray_Size * 6);// (Number + space) * 3.
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for(size_t idx = 0; idx < pArray_Size; idx++)
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pTargetString.append(to_string(pArray[idx].r) + " " + to_string(pArray[idx].g) + " " + to_string(pArray[idx].b) + " ");
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// remove last space symbol.
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pTargetString.resize(pTargetString.length() - 1);
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AttrHelper_CommaToPoint(pTargetString);
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}
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void X3DExporter::AttrHelper_Color3ToAttrList(std::list<SAttribute> pList, const std::string& pName, const aiColor3D& pValue, const aiColor3D& pDefaultValue)
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{
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string tstr;
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if(pValue == pDefaultValue) return;
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AttrHelper_Col3DArrToString(&pValue, 1, tstr);
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pList.push_back({pName, tstr});
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}
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void X3DExporter::AttrHelper_FloatToAttrList(std::list<SAttribute> pList, const string& pName, const float pValue, const float pDefaultValue)
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{
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string tstr;
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if(pValue == pDefaultValue) return;
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AttrHelper_FloatToString(pValue, tstr);
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pList.push_back({pName, tstr});
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};
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void X3DExporter::NodeHelper_OpenNode(const string& pNodeName, const size_t pTabLevel, const bool pEmptyElement, const list<SAttribute>& pAttrList)
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{
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// Write indentation.
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IndentationStringSet(pTabLevel);
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XML_Write(mIndentationString);
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// Begin of the element
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XML_Write("<" + pNodeName);
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// Write attributes
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for(const SAttribute& attr: pAttrList) { XML_Write(" " + attr.Name + "='" + attr.Value + "'"); }
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// End of the element
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if(pEmptyElement)
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{
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XML_Write("/>\n");
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}
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else
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{
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XML_Write(">\n");
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}
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}
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void X3DExporter::NodeHelper_OpenNode(const string& pNodeName, const size_t pTabLevel, const bool pEmptyElement)
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{
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const list<SAttribute> attr_list;
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NodeHelper_OpenNode(pNodeName, pTabLevel, pEmptyElement, attr_list);
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}
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void X3DExporter::NodeHelper_CloseNode(const string& pNodeName, const size_t pTabLevel)
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{
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// Write indentation.
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IndentationStringSet(pTabLevel);
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XML_Write(mIndentationString);
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// Write element
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XML_Write("</" + pNodeName + ">\n");
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}
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void X3DExporter::Export_Node(const aiNode *pNode, const size_t pTabLevel)
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{
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bool transform = false;
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list<SAttribute> attr_list;
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// In Assimp lights is stored in next way: light source store in mScene->mLights and in node tree must present aiNode with name same as
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// light source has. Considering it we must compare every aiNode name with light sources names. Why not to look where ligths is present
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// and save them to fili? Because corresponding aiNode can be already written to file and we can only add information to file not to edit.
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if(CheckAndExport_Light(*pNode, pTabLevel)) return;
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// Check if need DEF.
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if(pNode->mName.length) attr_list.push_back({"DEF", pNode->mName.C_Str()});
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// Check if need <Transformation> node against <Group>.
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if(!pNode->mTransformation.IsIdentity())
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{
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auto Vector2String = [this](const aiVector3D pVector) -> string
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{
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string tstr = to_string(pVector.x) + " " + to_string(pVector.y) + " " + to_string(pVector.z);
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AttrHelper_CommaToPoint(tstr);
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return tstr;
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};
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auto Rotation2String = [this](const aiVector3D pAxis, const ai_real pAngle) -> string
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{
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string tstr = to_string(pAxis.x) + " " + to_string(pAxis.y) + " " + to_string(pAxis.z) + " " + to_string(pAngle);
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AttrHelper_CommaToPoint(tstr);
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return tstr;
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};
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aiVector3D scale, translate, rotate_axis;
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ai_real rotate_angle;
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transform = true;
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pNode->mTransformation.Decompose(scale, rotate_axis, rotate_angle, translate);
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// Check if values different from default
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if((rotate_angle != 0) && (rotate_axis.Length() > 0))
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attr_list.push_back({"rotation", Rotation2String(rotate_axis, rotate_angle)});
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if(!scale.Equal({1, 1, 1})) attr_list.push_back({"scale", Vector2String(scale)});
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if(translate.Length() > 0) attr_list.push_back({"translation", Vector2String(translate)});
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}
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// Begin node if need.
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if(transform)
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NodeHelper_OpenNode("Transform", pTabLevel, false, attr_list);
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else
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NodeHelper_OpenNode("Group", pTabLevel);
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// Export metadata
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if(pNode->mMetaData != nullptr)
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{
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for(size_t idx_prop = 0; idx_prop < pNode->mMetaData->mNumProperties; idx_prop++)
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{
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const aiString* key;
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const aiMetadataEntry* entry;
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if(pNode->mMetaData->Get(idx_prop, key, entry))
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{
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switch(entry->mType)
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{
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case AI_BOOL:
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Export_MetadataBoolean(*key, *static_cast<bool*>(entry->mData), pTabLevel + 1);
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break;
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case AI_DOUBLE:
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Export_MetadataDouble(*key, *static_cast<double*>(entry->mData), pTabLevel + 1);
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break;
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case AI_FLOAT:
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Export_MetadataFloat(*key, *static_cast<float*>(entry->mData), pTabLevel + 1);
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break;
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case AI_INT32:
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Export_MetadataInteger(*key, *static_cast<int32_t*>(entry->mData), pTabLevel + 1);
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break;
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case AI_AISTRING:
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Export_MetadataString(*key, *static_cast<aiString*>(entry->mData), pTabLevel + 1);
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break;
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default:
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LogError("Unsupported metadata type: " + to_string(entry->mType));
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break;
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}// switch(entry->mType)
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}
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}
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}// if(pNode->mMetaData != nullptr)
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// Export meshes.
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for(size_t idx_mesh = 0; idx_mesh < pNode->mNumMeshes; idx_mesh++) Export_Mesh(pNode->mMeshes[idx_mesh], pTabLevel + 1);
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// Export children.
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for(size_t idx_node = 0; idx_node < pNode->mNumChildren; idx_node++) Export_Node(pNode->mChildren[idx_node], pTabLevel + 1);
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// End node if need.
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if(transform)
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NodeHelper_CloseNode("Transform", pTabLevel);
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else
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NodeHelper_CloseNode("Group", pTabLevel);
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}
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void X3DExporter::Export_Mesh(const size_t pIdxMesh, const size_t pTabLevel)
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{
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const char* NodeName_IFS = "IndexedFaceSet";
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const char* NodeName_Shape = "Shape";
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list<SAttribute> attr_list;
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aiMesh& mesh = *mScene->mMeshes[pIdxMesh];// create alias for conveniance.
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// Check if mesh already defined early.
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if(mDEF_Map_Mesh.find(pIdxMesh) != mDEF_Map_Mesh.end())
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{
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// Mesh already defined, just refer to it
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attr_list.push_back({"USE", mDEF_Map_Mesh.at(pIdxMesh)});
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NodeHelper_OpenNode(NodeName_Shape, pTabLevel, true, attr_list);
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return;
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}
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string mesh_name(mesh.mName.C_Str() + string("_IDX_") + to_string(pIdxMesh));// Create mesh name
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// Define mesh name.
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attr_list.push_back({"DEF", mesh_name});
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mDEF_Map_Mesh[pIdxMesh] = mesh_name;
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//
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// "Shape" node.
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//
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NodeHelper_OpenNode(NodeName_Shape, pTabLevel, false, attr_list);
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attr_list.clear();
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//
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// "Appearance" node.
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//
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Export_Material(mesh.mMaterialIndex, pTabLevel + 1);
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//
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// "IndexedFaceSet" node.
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//
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// Fill attributes which differ from default. In Assimp for colors, vertices and normals used one indices set. So, only "coordIndex" must be set.
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string coordIndex;
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// fill coordinates index.
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coordIndex.reserve(mesh.mNumVertices * 4);// Index + space + Face delimiter
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for(size_t idx_face = 0; idx_face < mesh.mNumFaces; idx_face++)
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{
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const aiFace& face_cur = mesh.mFaces[idx_face];
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for(size_t idx_vert = 0; idx_vert < face_cur.mNumIndices; idx_vert++)
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{
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coordIndex.append(to_string(face_cur.mIndices[idx_vert]) + " ");
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}
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coordIndex.append("-1 ");// face delimiter.
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}
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// remove last space symbol.
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coordIndex.resize(coordIndex.length() - 1);
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attr_list.push_back({"coordIndex", coordIndex});
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// create node
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NodeHelper_OpenNode(NodeName_IFS, pTabLevel + 1, false, attr_list);
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attr_list.clear();
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// Child nodes for "IndexedFaceSet" needed when used colors, textures or normals.
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string attr_value;
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// Export <Coordinate>
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AttrHelper_Vec3DArrToString(mesh.mVertices, mesh.mNumVertices, attr_value);
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attr_list.push_back({"point", attr_value});
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NodeHelper_OpenNode("Coordinate", pTabLevel + 2, true, attr_list);
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attr_list.clear();
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// Export <ColorRGBA>
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if(mesh.HasVertexColors(0))
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{
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AttrHelper_Col4DArrToString(mesh.mColors[0], mesh.mNumVertices, attr_value);
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attr_list.push_back({"color", attr_value});
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NodeHelper_OpenNode("ColorRGBA", pTabLevel + 2, true, attr_list);
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attr_list.clear();
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}
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// Export <TextureCoordinate>
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if(mesh.HasTextureCoords(0))
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{
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AttrHelper_Vec3DAsVec2fArrToString(mesh.mTextureCoords[0], mesh.mNumVertices, attr_value);
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attr_list.push_back({"point", attr_value});
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NodeHelper_OpenNode("TextureCoordinate", pTabLevel + 2, true, attr_list);
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attr_list.clear();
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}
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// Export <Normal>
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if(mesh.HasNormals())
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{
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AttrHelper_Vec3DArrToString(mesh.mNormals, mesh.mNumVertices, attr_value);
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attr_list.push_back({"vector", attr_value});
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NodeHelper_OpenNode("Normal", pTabLevel + 2, true, attr_list);
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attr_list.clear();
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}
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//
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// Close opened nodes.
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//
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NodeHelper_CloseNode(NodeName_IFS, pTabLevel + 1);
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NodeHelper_CloseNode(NodeName_Shape, pTabLevel);
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}
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void X3DExporter::Export_Material(const size_t pIdxMaterial, const size_t pTabLevel)
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{
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const char* NodeName_A = "Appearance";
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list<SAttribute> attr_list;
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aiMaterial& material = *mScene->mMaterials[pIdxMaterial];// create alias for conveniance.
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// Check if material already defined early.
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if(mDEF_Map_Material.find(pIdxMaterial) != mDEF_Map_Material.end())
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{
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// Material already defined, just refer to it
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attr_list.push_back({"USE", mDEF_Map_Material.at(pIdxMaterial)});
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NodeHelper_OpenNode(NodeName_A, pTabLevel, true, attr_list);
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return;
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}
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string material_name(string("_IDX_") + to_string(pIdxMaterial));// Create material name
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aiString ai_mat_name;
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if(material.Get(AI_MATKEY_NAME, ai_mat_name) == AI_SUCCESS) material_name.insert(0, ai_mat_name.C_Str());
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// Define material name.
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attr_list.push_back({"DEF", material_name});
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mDEF_Map_Material[pIdxMaterial] = material_name;
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//
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// "Appearance" node.
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//
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NodeHelper_OpenNode(NodeName_A, pTabLevel, false, attr_list);
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attr_list.clear();
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//
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// "Material" node.
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//
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{
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auto Color4ToAttrList = [&](const string& pAttrName, const aiColor4D& pAttrValue, const aiColor3D& pAttrDefaultValue)
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{
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string tstr;
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if(aiColor3D(pAttrValue.r, pAttrValue.g, pAttrValue.b) != pAttrDefaultValue)
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{
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AttrHelper_Col4DArrToString(&pAttrValue, 1, tstr);
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attr_list.push_back({pAttrName, tstr});
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}
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};
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float tvalf;
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aiColor3D color3;
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aiColor4D color4;
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// ambientIntensity="0.2" SFFloat [inputOutput]
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if(material.Get(AI_MATKEY_COLOR_AMBIENT, color3) == AI_SUCCESS)
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AttrHelper_FloatToAttrList(attr_list, "ambientIntensity", (color3.r + color3.g + color3.b) / 3.0f, 0.2f);
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else if(material.Get(AI_MATKEY_COLOR_AMBIENT, color4) == AI_SUCCESS)
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AttrHelper_FloatToAttrList(attr_list, "ambientIntensity", (color4.r + color4.g + color4.b) / 3.0f, 0.2f);
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// diffuseColor="0.8 0.8 0.8" SFColor [inputOutput]
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if(material.Get(AI_MATKEY_COLOR_DIFFUSE, color3) == AI_SUCCESS)
|
|
AttrHelper_Color3ToAttrList(attr_list, "diffuseColor", color3, aiColor3D(0.8f, 0.8f, 0.8f));
|
|
else if(material.Get(AI_MATKEY_COLOR_DIFFUSE, color4) == AI_SUCCESS)
|
|
Color4ToAttrList("diffuseColor", color4, aiColor3D(0.8f, 0.8f, 0.8f));
|
|
|
|
// emissiveColor="0 0 0" SFColor [inputOutput]
|
|
if(material.Get(AI_MATKEY_COLOR_EMISSIVE, color3) == AI_SUCCESS)
|
|
AttrHelper_Color3ToAttrList(attr_list, "emissiveColor", color3, aiColor3D(0, 0, 0));
|
|
else if(material.Get(AI_MATKEY_COLOR_EMISSIVE, color4) == AI_SUCCESS)
|
|
Color4ToAttrList("emissiveColor", color4, aiColor3D(0, 0, 0));
|
|
|
|
// shininess="0.2" SFFloat [inputOutput]
|
|
if(material.Get(AI_MATKEY_SHININESS, tvalf) == AI_SUCCESS) AttrHelper_FloatToAttrList(attr_list, "shininess", tvalf, 0.2f);
|
|
|
|
// specularColor="0 0 0" SFColor [inputOutput]
|
|
if(material.Get(AI_MATKEY_COLOR_SPECULAR, color3) == AI_SUCCESS)
|
|
AttrHelper_Color3ToAttrList(attr_list, "specularColor", color3, aiColor3D(0, 0, 0));
|
|
else if(material.Get(AI_MATKEY_COLOR_SPECULAR, color4) == AI_SUCCESS)
|
|
Color4ToAttrList("specularColor", color4, aiColor3D(0, 0, 0));
|
|
|
|
// transparency="0" SFFloat [inputOutput]
|
|
if(material.Get(AI_MATKEY_OPACITY, tvalf) == AI_SUCCESS)
|
|
{
|
|
if(tvalf > 1) tvalf = 1;
|
|
|
|
tvalf = 1.0f - tvalf;
|
|
AttrHelper_FloatToAttrList(attr_list, "transparency", tvalf, 0);
|
|
}
|
|
|
|
NodeHelper_OpenNode("Material", pTabLevel + 1, true, attr_list);
|
|
attr_list.clear();
|
|
}// "Material" node. END.
|
|
|
|
//
|
|
// "ImageTexture" node.
|
|
//
|
|
{
|
|
auto RepeatToAttrList = [&](const string& pAttrName, const bool pAttrValue)
|
|
{
|
|
if(!pAttrValue) attr_list.push_back({pAttrName, "false"});
|
|
};
|
|
|
|
bool tvalb;
|
|
aiString tstring;
|
|
|
|
// url="" MFString
|
|
if(material.Get(AI_MATKEY_TEXTURE_DIFFUSE(0), tstring) == AI_SUCCESS)
|
|
{
|
|
if(strncmp(tstring.C_Str(), AI_EMBEDDED_TEXNAME_PREFIX, strlen(AI_EMBEDDED_TEXNAME_PREFIX)) == 0)
|
|
LogError("Embedded texture is not supported");
|
|
else
|
|
attr_list.push_back({"url", string("\"") + tstring.C_Str() + "\""});
|
|
}
|
|
|
|
// repeatS="true" SFBool
|
|
if(material.Get(AI_MATKEY_MAPPINGMODE_U_DIFFUSE(0), tvalb) == AI_SUCCESS) RepeatToAttrList("repeatS", tvalb);
|
|
|
|
// repeatT="true" SFBool
|
|
if(material.Get(AI_MATKEY_MAPPINGMODE_V_DIFFUSE(0), tvalb) == AI_SUCCESS) RepeatToAttrList("repeatT", tvalb);
|
|
|
|
NodeHelper_OpenNode("ImageTexture", pTabLevel + 1, true, attr_list);
|
|
attr_list.clear();
|
|
}// "ImageTexture" node. END.
|
|
|
|
//
|
|
// "TextureTransform" node.
|
|
//
|
|
{
|
|
auto Vec2ToAttrList = [&](const string& pAttrName, const aiVector2D& pAttrValue, const aiVector2D& pAttrDefaultValue)
|
|
{
|
|
string tstr;
|
|
|
|
if(pAttrValue != pAttrDefaultValue)
|
|
{
|
|
AttrHelper_Vec2DArrToString(&pAttrValue, 1, tstr);
|
|
attr_list.push_back({pAttrName, tstr});
|
|
}
|
|
};
|
|
|
|
aiUVTransform transform;
|
|
|
|
if(material.Get(AI_MATKEY_UVTRANSFORM_DIFFUSE(0), transform) == AI_SUCCESS)
|
|
{
|
|
Vec2ToAttrList("translation", transform.mTranslation, aiVector2D(0, 0));
|
|
AttrHelper_FloatToAttrList(attr_list, "rotation", transform.mRotation, 0);
|
|
Vec2ToAttrList("scale", transform.mScaling, aiVector2D(1, 1));
|
|
|
|
NodeHelper_OpenNode("TextureTransform", pTabLevel + 1, true, attr_list);
|
|
attr_list.clear();
|
|
}
|
|
}// "TextureTransform" node. END.
|
|
|
|
//
|
|
// Close opened nodes.
|
|
//
|
|
NodeHelper_CloseNode(NodeName_A, pTabLevel);
|
|
|
|
}
|
|
|
|
void X3DExporter::Export_MetadataBoolean(const aiString& pKey, const bool pValue, const size_t pTabLevel)
|
|
{
|
|
list<SAttribute> attr_list;
|
|
|
|
attr_list.push_back({"name", pKey.C_Str()});
|
|
attr_list.push_back({"value", pValue ? "true" : "false"});
|
|
NodeHelper_OpenNode("MetadataBoolean", pTabLevel, true, attr_list);
|
|
}
|
|
|
|
void X3DExporter::Export_MetadataDouble(const aiString& pKey, const double pValue, const size_t pTabLevel)
|
|
{
|
|
list<SAttribute> attr_list;
|
|
|
|
attr_list.push_back({"name", pKey.C_Str()});
|
|
attr_list.push_back({"value", to_string(pValue)});
|
|
NodeHelper_OpenNode("MetadataDouble", pTabLevel, true, attr_list);
|
|
}
|
|
|
|
void X3DExporter::Export_MetadataFloat(const aiString& pKey, const float pValue, const size_t pTabLevel)
|
|
{
|
|
list<SAttribute> attr_list;
|
|
|
|
attr_list.push_back({"name", pKey.C_Str()});
|
|
attr_list.push_back({"value", to_string(pValue)});
|
|
NodeHelper_OpenNode("MetadataFloat", pTabLevel, true, attr_list);
|
|
}
|
|
|
|
void X3DExporter::Export_MetadataInteger(const aiString& pKey, const int32_t pValue, const size_t pTabLevel)
|
|
{
|
|
list<SAttribute> attr_list;
|
|
|
|
attr_list.push_back({"name", pKey.C_Str()});
|
|
attr_list.push_back({"value", to_string(pValue)});
|
|
NodeHelper_OpenNode("MetadataInteger", pTabLevel, true, attr_list);
|
|
}
|
|
|
|
void X3DExporter::Export_MetadataString(const aiString& pKey, const aiString& pValue, const size_t pTabLevel)
|
|
{
|
|
list<SAttribute> attr_list;
|
|
|
|
attr_list.push_back({"name", pKey.C_Str()});
|
|
attr_list.push_back({"value", pValue.C_Str()});
|
|
NodeHelper_OpenNode("MetadataString", pTabLevel, true, attr_list);
|
|
}
|
|
|
|
bool X3DExporter::CheckAndExport_Light(const aiNode& pNode, const size_t pTabLevel)
|
|
{
|
|
list<SAttribute> attr_list;
|
|
|
|
auto Vec3ToAttrList = [&](const string& pAttrName, const aiVector3D& pAttrValue, const aiVector3D& pAttrDefaultValue)
|
|
{
|
|
string tstr;
|
|
|
|
if(pAttrValue != pAttrDefaultValue)
|
|
{
|
|
AttrHelper_Vec3DArrToString(&pAttrValue, 1, tstr);
|
|
attr_list.push_back({pAttrName, tstr});
|
|
}
|
|
};
|
|
|
|
size_t idx_light;
|
|
bool found = false;
|
|
|
|
// Name of the light source can not be empty.
|
|
if(pNode.mName.length == 0) return false;
|
|
|
|
// search for light with name like node has.
|
|
for(idx_light = 0; mScene->mNumLights; idx_light++)
|
|
{
|
|
if(pNode.mName == mScene->mLights[idx_light]->mName)
|
|
{
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(!found) return false;
|
|
|
|
// Light source is found.
|
|
const aiLight& light = *mScene->mLights[idx_light];// Alias for conveniance.
|
|
|
|
aiMatrix4x4 trafo_mat = Matrix_GlobalToCurrent(pNode).Inverse();
|
|
|
|
attr_list.push_back({"DEF", light.mName.C_Str()});
|
|
attr_list.push_back({"global", "true"});// "false" is not supported.
|
|
// ambientIntensity="0" SFFloat [inputOutput]
|
|
AttrHelper_FloatToAttrList(attr_list, "ambientIntensity", aiVector3D(light.mColorAmbient.r, light.mColorAmbient.g, light.mColorAmbient.b).Length(), 0);
|
|
// color="1 1 1" SFColor [inputOutput]
|
|
AttrHelper_Color3ToAttrList(attr_list, "color", light.mColorDiffuse, aiColor3D(1, 1, 1));
|
|
|
|
switch(light.mType)
|
|
{
|
|
case aiLightSource_DIRECTIONAL:
|
|
{
|
|
aiVector3D direction = trafo_mat * light.mDirection;
|
|
|
|
Vec3ToAttrList("direction", direction, aiVector3D(0, 0, -1));
|
|
NodeHelper_OpenNode("DirectionalLight", pTabLevel, true, attr_list);
|
|
}
|
|
|
|
break;
|
|
case aiLightSource_POINT:
|
|
{
|
|
aiVector3D attenuation(light.mAttenuationConstant, light.mAttenuationLinear, light.mAttenuationQuadratic);
|
|
aiVector3D location = trafo_mat * light.mPosition;
|
|
|
|
Vec3ToAttrList("attenuation", attenuation, aiVector3D(1, 0, 0));
|
|
Vec3ToAttrList("location", location, aiVector3D(0, 0, 0));
|
|
NodeHelper_OpenNode("PointLight", pTabLevel, true, attr_list);
|
|
}
|
|
|
|
break;
|
|
case aiLightSource_SPOT:
|
|
{
|
|
aiVector3D attenuation(light.mAttenuationConstant, light.mAttenuationLinear, light.mAttenuationQuadratic);
|
|
aiVector3D location = trafo_mat * light.mPosition;
|
|
aiVector3D direction = trafo_mat * light.mDirection;
|
|
|
|
Vec3ToAttrList("attenuation", attenuation, aiVector3D(1, 0, 0));
|
|
Vec3ToAttrList("location", location, aiVector3D(0, 0, 0));
|
|
Vec3ToAttrList("direction", direction, aiVector3D(0, 0, -1));
|
|
AttrHelper_FloatToAttrList(attr_list, "beamWidth", light.mAngleInnerCone, 0.7854f);
|
|
AttrHelper_FloatToAttrList(attr_list, "cutOffAngle", light.mAngleOuterCone, 1.570796f);
|
|
NodeHelper_OpenNode("SpotLight", pTabLevel, true, attr_list);
|
|
}
|
|
|
|
break;
|
|
default:
|
|
throw DeadlyExportError("Unknown light type: " + to_string(light.mType));
|
|
}// switch(light.mType)
|
|
|
|
return true;
|
|
}
|
|
|
|
X3DExporter::X3DExporter(const char* pFileName, IOSystem* pIOSystem, const aiScene* pScene, const ExportProperties* pProperties)
|
|
: mScene(pScene)
|
|
{
|
|
list<SAttribute> attr_list;
|
|
|
|
mOutFile = pIOSystem->Open(pFileName, "wt");
|
|
if(mOutFile == nullptr) throw DeadlyExportError("Could not open output .x3d file: " + string(pFileName));
|
|
|
|
// Begin document
|
|
XML_Write("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
|
|
XML_Write("<!DOCTYPE X3D PUBLIC \"ISO//Web3D//DTD X3D 3.3//EN\" \"http://www.web3d.org/specifications/x3d-3.3.dtd\">\n");
|
|
// Root node
|
|
attr_list.push_back({"profile", "Interchange"});
|
|
attr_list.push_back({"version", "3.3"});
|
|
attr_list.push_back({"xmlns:xsd", "http://www.w3.org/2001/XMLSchema-instance"});
|
|
attr_list.push_back({"xsd:noNamespaceSchemaLocation", "http://www.web3d.org/specifications/x3d-3.3.xsd"});
|
|
NodeHelper_OpenNode("X3D", 0, false, attr_list);
|
|
attr_list.clear();
|
|
// <head>: meta data.
|
|
NodeHelper_OpenNode("head", 1);
|
|
XML_Write(mIndentationString + "<!-- All \"meta\" from this section tou will found in <Scene> node as MetadataString nodes. -->\n");
|
|
NodeHelper_CloseNode("head", 1);
|
|
// Scene node.
|
|
NodeHelper_OpenNode("Scene", 1);
|
|
Export_Node(mScene->mRootNode, 2);
|
|
NodeHelper_CloseNode("Scene", 1);
|
|
// Close Root node.
|
|
NodeHelper_CloseNode("X3D", 0);
|
|
// Cleanup
|
|
pIOSystem->Close(mOutFile);
|
|
mOutFile = nullptr;
|
|
}
|
|
|
|
}// namespace Assimp
|
|
|
|
#endif // ASSIMP_BUILD_NO_X3D_EXPORTER
|
|
#endif // ASSIMP_BUILD_NO_EXPORT
|