assimp/code/X3DImporter_Postprocess.cpp

816 lines
40 KiB
C++

/*
Open Asset Import Library (assimp)
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*/
/// \file X3DImporter_Postprocess.cpp
/// \brief Convert built scenegraph and objects to Assimp scenegraph.
/// \date 2015-2016
/// \author smal.root@gmail.com
#ifndef ASSIMP_BUILD_NO_X3D_IMPORTER
#include "X3DImporter.hpp"
// Header files, Assimp.
#include "StandardShapes.h"
#include "StringUtils.h"
// Header files, stdlib.
#include <algorithm>
#include <iterator>
#include <string>
namespace Assimp
{
aiMatrix4x4 X3DImporter::PostprocessHelper_Matrix_GlobalToCurrent() const
{
CX3DImporter_NodeElement* cur_node;
std::list<aiMatrix4x4> matr;
aiMatrix4x4 out_matr;
// starting walk from current element to root
cur_node = NodeElement_Cur;
if(cur_node != nullptr)
{
do
{
// if cur_node is group then store group transformation matrix in list.
if(cur_node->Type == CX3DImporter_NodeElement::ENET_Group) matr.push_back(((CX3DImporter_NodeElement_Group*)cur_node)->Transformation);
cur_node = cur_node->Parent;
} while(cur_node != nullptr);
}
// multiplicate all matrices in reverse order
for(std::list<aiMatrix4x4>::reverse_iterator rit = matr.rbegin(); rit != matr.rend(); rit++) out_matr = out_matr * (*rit);
return out_matr;
}
void X3DImporter::PostprocessHelper_CollectMetadata(const CX3DImporter_NodeElement& pNodeElement, std::list<CX3DImporter_NodeElement*>& pList) const
{
// walk thru childs and find for metadata.
for(std::list<CX3DImporter_NodeElement*>::const_iterator el_it = pNodeElement.Child.begin(); el_it != pNodeElement.Child.end(); el_it++)
{
if(((*el_it)->Type == CX3DImporter_NodeElement::ENET_MetaBoolean) || ((*el_it)->Type == CX3DImporter_NodeElement::ENET_MetaDouble) ||
((*el_it)->Type == CX3DImporter_NodeElement::ENET_MetaFloat) || ((*el_it)->Type == CX3DImporter_NodeElement::ENET_MetaInteger) ||
((*el_it)->Type == CX3DImporter_NodeElement::ENET_MetaString))
{
pList.push_back(*el_it);
}
else if((*el_it)->Type == CX3DImporter_NodeElement::ENET_MetaSet)
{
PostprocessHelper_CollectMetadata(**el_it, pList);
}
}// for(std::list<CX3DImporter_NodeElement*>::const_iterator el_it = pNodeElement.Child.begin(); el_it != pNodeElement.Child.end(); el_it++)
}
bool X3DImporter::PostprocessHelper_ElementIsMetadata(const CX3DImporter_NodeElement::EType pType) const
{
if((pType == CX3DImporter_NodeElement::ENET_MetaBoolean) || (pType == CX3DImporter_NodeElement::ENET_MetaDouble) ||
(pType == CX3DImporter_NodeElement::ENET_MetaFloat) || (pType == CX3DImporter_NodeElement::ENET_MetaInteger) ||
(pType == CX3DImporter_NodeElement::ENET_MetaString) || (pType == CX3DImporter_NodeElement::ENET_MetaSet))
{
return true;
}
else
{
return false;
}
}
bool X3DImporter::PostprocessHelper_ElementIsMesh(const CX3DImporter_NodeElement::EType pType) const
{
if((pType == CX3DImporter_NodeElement::ENET_Arc2D) || (pType == CX3DImporter_NodeElement::ENET_ArcClose2D) ||
(pType == CX3DImporter_NodeElement::ENET_Box) || (pType == CX3DImporter_NodeElement::ENET_Circle2D) ||
(pType == CX3DImporter_NodeElement::ENET_Cone) || (pType == CX3DImporter_NodeElement::ENET_Cylinder) ||
(pType == CX3DImporter_NodeElement::ENET_Disk2D) || (pType == CX3DImporter_NodeElement::ENET_ElevationGrid) ||
(pType == CX3DImporter_NodeElement::ENET_Extrusion) || (pType == CX3DImporter_NodeElement::ENET_IndexedFaceSet) ||
(pType == CX3DImporter_NodeElement::ENET_IndexedLineSet) || (pType == CX3DImporter_NodeElement::ENET_IndexedTriangleFanSet) ||
(pType == CX3DImporter_NodeElement::ENET_IndexedTriangleSet) || (pType == CX3DImporter_NodeElement::ENET_IndexedTriangleStripSet) ||
(pType == CX3DImporter_NodeElement::ENET_PointSet) || (pType == CX3DImporter_NodeElement::ENET_LineSet) ||
(pType == CX3DImporter_NodeElement::ENET_Polyline2D) || (pType == CX3DImporter_NodeElement::ENET_Polypoint2D) ||
(pType == CX3DImporter_NodeElement::ENET_Rectangle2D) || (pType == CX3DImporter_NodeElement::ENET_Sphere) ||
(pType == CX3DImporter_NodeElement::ENET_TriangleFanSet) || (pType == CX3DImporter_NodeElement::ENET_TriangleSet) ||
(pType == CX3DImporter_NodeElement::ENET_TriangleSet2D) || (pType == CX3DImporter_NodeElement::ENET_TriangleStripSet))
{
return true;
}
else
{
return false;
}
}
void X3DImporter::Postprocess_BuildLight(const CX3DImporter_NodeElement& pNodeElement, std::list<aiLight*>& pSceneLightList) const
{
const CX3DImporter_NodeElement_Light& ne = *( ( CX3DImporter_NodeElement_Light* ) &pNodeElement );
aiMatrix4x4 transform_matr = PostprocessHelper_Matrix_GlobalToCurrent();
aiLight* new_light = new aiLight;
new_light->mName = ne.ID;
new_light->mColorAmbient = ne.Color * ne.AmbientIntensity;
new_light->mColorDiffuse = ne.Color * ne.Intensity;
new_light->mColorSpecular = ne.Color * ne.Intensity;
switch(pNodeElement.Type)
{
case CX3DImporter_NodeElement::ENET_DirectionalLight:
new_light->mType = aiLightSource_DIRECTIONAL;
new_light->mDirection = ne.Direction, new_light->mDirection *= transform_matr;
break;
case CX3DImporter_NodeElement::ENET_PointLight:
new_light->mType = aiLightSource_POINT;
new_light->mPosition = ne.Location, new_light->mPosition *= transform_matr;
new_light->mAttenuationConstant = ne.Attenuation.x;
new_light->mAttenuationLinear = ne.Attenuation.y;
new_light->mAttenuationQuadratic = ne.Attenuation.z;
break;
case CX3DImporter_NodeElement::ENET_SpotLight:
new_light->mType = aiLightSource_SPOT;
new_light->mPosition = ne.Location, new_light->mPosition *= transform_matr;
new_light->mDirection = ne.Direction, new_light->mDirection *= transform_matr;
new_light->mAttenuationConstant = ne.Attenuation.x;
new_light->mAttenuationLinear = ne.Attenuation.y;
new_light->mAttenuationQuadratic = ne.Attenuation.z;
new_light->mAngleInnerCone = ne.BeamWidth;
new_light->mAngleOuterCone = ne.CutOffAngle;
break;
default:
throw DeadlyImportError("Postprocess_BuildLight. Unknown type of light: " + to_string(pNodeElement.Type) + ".");
}
pSceneLightList.push_back(new_light);
}
void X3DImporter::Postprocess_BuildMaterial(const CX3DImporter_NodeElement& pNodeElement, aiMaterial** pMaterial) const
{
// check argument
if(pMaterial == nullptr) throw DeadlyImportError("Postprocess_BuildMaterial. pMaterial is nullptr.");
if(*pMaterial != nullptr) throw DeadlyImportError("Postprocess_BuildMaterial. *pMaterial must be nullptr.");
*pMaterial = new aiMaterial;
aiMaterial& taimat = **pMaterial;// creating alias for convenience.
// at this point pNodeElement point to <Appearance> node. Walk thru childs and add all stored data.
for(std::list<CX3DImporter_NodeElement*>::const_iterator el_it = pNodeElement.Child.begin(); el_it != pNodeElement.Child.end(); el_it++)
{
if((*el_it)->Type == CX3DImporter_NodeElement::ENET_Material)
{
aiColor3D tcol3;
float tvalf;
CX3DImporter_NodeElement_Material& tnemat = *((CX3DImporter_NodeElement_Material*)*el_it);
tcol3.r = tnemat.AmbientIntensity, tcol3.g = tnemat.AmbientIntensity, tcol3.b = tnemat.AmbientIntensity;
taimat.AddProperty(&tcol3, 1, AI_MATKEY_COLOR_AMBIENT);
taimat.AddProperty(&tnemat.DiffuseColor, 1, AI_MATKEY_COLOR_DIFFUSE);
taimat.AddProperty(&tnemat.EmissiveColor, 1, AI_MATKEY_COLOR_EMISSIVE);
taimat.AddProperty(&tnemat.SpecularColor, 1, AI_MATKEY_COLOR_SPECULAR);
tvalf = 1;
taimat.AddProperty(&tvalf, 1, AI_MATKEY_SHININESS_STRENGTH);
taimat.AddProperty(&tnemat.Shininess, 1, AI_MATKEY_SHININESS);
tvalf = 1.0f - tnemat.Transparency;
taimat.AddProperty(&tvalf, 1, AI_MATKEY_OPACITY);
}// if((*el_it)->Type == CX3DImporter_NodeElement::ENET_Material)
else if((*el_it)->Type == CX3DImporter_NodeElement::ENET_ImageTexture)
{
CX3DImporter_NodeElement_ImageTexture& tnetex = *((CX3DImporter_NodeElement_ImageTexture*)*el_it);
aiString url_str(tnetex.URL.c_str());
int mode = aiTextureOp_Multiply;
taimat.AddProperty(&url_str, AI_MATKEY_TEXTURE_DIFFUSE(0));
taimat.AddProperty(&tnetex.RepeatS, 1, AI_MATKEY_MAPPINGMODE_U_DIFFUSE(0));
taimat.AddProperty(&tnetex.RepeatT, 1, AI_MATKEY_MAPPINGMODE_V_DIFFUSE(0));
taimat.AddProperty(&mode, 1, AI_MATKEY_TEXOP_DIFFUSE(0));
}// else if((*el_it)->Type == CX3DImporter_NodeElement::ENET_ImageTexture)
else if((*el_it)->Type == CX3DImporter_NodeElement::ENET_TextureTransform)
{
aiUVTransform trans;
CX3DImporter_NodeElement_TextureTransform& tnetextr = *((CX3DImporter_NodeElement_TextureTransform*)*el_it);
trans.mTranslation = tnetextr.Translation - tnetextr.Center;
trans.mScaling = tnetextr.Scale;
trans.mRotation = tnetextr.Rotation;
taimat.AddProperty(&trans, 1, AI_MATKEY_UVTRANSFORM_DIFFUSE(0));
}// else if((*el_it)->Type == CX3DImporter_NodeElement::ENET_TextureTransform)
}// for(std::list<CX3DImporter_NodeElement*>::const_iterator el_it = pNodeElement.Child.begin(); el_it != pNodeElement.Child.end(); el_it++)
}
void X3DImporter::Postprocess_BuildMesh(const CX3DImporter_NodeElement& pNodeElement, aiMesh** pMesh) const
{
// check argument
if(pMesh == nullptr) throw DeadlyImportError("Postprocess_BuildMesh. pMesh is nullptr.");
if(*pMesh != nullptr) throw DeadlyImportError("Postprocess_BuildMesh. *pMesh must be nullptr.");
/************************************************************************************************************************************/
/************************************************************ Geometry2D ************************************************************/
/************************************************************************************************************************************/
if((pNodeElement.Type == CX3DImporter_NodeElement::ENET_Arc2D) || (pNodeElement.Type == CX3DImporter_NodeElement::ENET_ArcClose2D) ||
(pNodeElement.Type == CX3DImporter_NodeElement::ENET_Circle2D) || (pNodeElement.Type == CX3DImporter_NodeElement::ENET_Disk2D) ||
(pNodeElement.Type == CX3DImporter_NodeElement::ENET_Polyline2D) || (pNodeElement.Type == CX3DImporter_NodeElement::ENET_Polypoint2D) ||
(pNodeElement.Type == CX3DImporter_NodeElement::ENET_Rectangle2D) || (pNodeElement.Type == CX3DImporter_NodeElement::ENET_TriangleSet2D))
{
CX3DImporter_NodeElement_Geometry2D& tnemesh = *((CX3DImporter_NodeElement_Geometry2D*)&pNodeElement);// create alias for convenience
std::vector<aiVector3D> tarr;
tarr.reserve(tnemesh.Vertices.size());
for(std::list<aiVector3D>::iterator it = tnemesh.Vertices.begin(); it != tnemesh.Vertices.end(); it++) tarr.push_back(*it);
*pMesh = StandardShapes::MakeMesh(tarr, tnemesh.NumIndices);// create mesh from vertices using Assimp help.
return;// mesh is build, nothing to do anymore.
}
/************************************************************************************************************************************/
/************************************************************ Geometry3D ************************************************************/
/************************************************************************************************************************************/
//
// Predefined figures
//
if((pNodeElement.Type == CX3DImporter_NodeElement::ENET_Box) || (pNodeElement.Type == CX3DImporter_NodeElement::ENET_Cone) ||
(pNodeElement.Type == CX3DImporter_NodeElement::ENET_Cylinder) || (pNodeElement.Type == CX3DImporter_NodeElement::ENET_Sphere))
{
CX3DImporter_NodeElement_Geometry3D& tnemesh = *((CX3DImporter_NodeElement_Geometry3D*)&pNodeElement);// create alias for convenience
std::vector<aiVector3D> tarr;
tarr.reserve(tnemesh.Vertices.size());
for(std::list<aiVector3D>::iterator it = tnemesh.Vertices.begin(); it != tnemesh.Vertices.end(); it++) tarr.push_back(*it);
*pMesh = StandardShapes::MakeMesh(tarr, tnemesh.NumIndices);// create mesh from vertices using Assimp help.
return;// mesh is build, nothing to do anymore.
}
//
// Parametric figures
//
if(pNodeElement.Type == CX3DImporter_NodeElement::ENET_ElevationGrid)
{
CX3DImporter_NodeElement_ElevationGrid& tnemesh = *((CX3DImporter_NodeElement_ElevationGrid*)&pNodeElement);// create alias for convenience
// at first create mesh from existing vertices.
*pMesh = GeometryHelper_MakeMesh(tnemesh.CoordIdx, tnemesh.Vertices);
// copy additional information from children
for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
{
if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Color)
MeshGeometry_AddColor(**pMesh, ((CX3DImporter_NodeElement_Color*)*ch_it)->Value, tnemesh.ColorPerVertex);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_ColorRGBA)
MeshGeometry_AddColor(**pMesh, ((CX3DImporter_NodeElement_ColorRGBA*)*ch_it)->Value, tnemesh.ColorPerVertex);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Normal)
MeshGeometry_AddNormal(**pMesh, ((CX3DImporter_NodeElement_Normal*)*ch_it)->Value, tnemesh.NormalPerVertex);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_TextureCoordinate)
MeshGeometry_AddTexCoord(**pMesh, ((CX3DImporter_NodeElement_TextureCoordinate*)*ch_it)->Value);
else
throw DeadlyImportError("Postprocess_BuildMesh. Unknown child of ElevationGrid: " + to_string((*ch_it)->Type) + ".");
}// for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
return;// mesh is build, nothing to do anymore.
}// if(pNodeElement.Type == CX3DImporter_NodeElement::ENET_ElevationGrid)
//
// Indexed primitives sets
//
if(pNodeElement.Type == CX3DImporter_NodeElement::ENET_IndexedFaceSet)
{
CX3DImporter_NodeElement_IndexedSet& tnemesh = *((CX3DImporter_NodeElement_IndexedSet*)&pNodeElement);// create alias for convenience
// at first search for <Coordinate> node and create mesh.
for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
{
if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Coordinate)
{
*pMesh = GeometryHelper_MakeMesh(tnemesh.CoordIndex, ((CX3DImporter_NodeElement_Coordinate*)*ch_it)->Value);
}
}
// copy additional information from children
for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
{
if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Color)
MeshGeometry_AddColor(**pMesh, tnemesh.CoordIndex, tnemesh.ColorIndex, ((CX3DImporter_NodeElement_Color*)*ch_it)->Value, tnemesh.ColorPerVertex);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_ColorRGBA)
MeshGeometry_AddColor(**pMesh, tnemesh.CoordIndex, tnemesh.ColorIndex, ((CX3DImporter_NodeElement_ColorRGBA*)*ch_it)->Value,
tnemesh.ColorPerVertex);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Coordinate)
{} // skip because already read when mesh created.
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Normal)
MeshGeometry_AddNormal(**pMesh, tnemesh.CoordIndex, tnemesh.NormalIndex, ((CX3DImporter_NodeElement_Normal*)*ch_it)->Value,
tnemesh.NormalPerVertex);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_TextureCoordinate)
MeshGeometry_AddTexCoord(**pMesh, tnemesh.CoordIndex, tnemesh.TexCoordIndex, ((CX3DImporter_NodeElement_TextureCoordinate*)*ch_it)->Value);
else
throw DeadlyImportError("Postprocess_BuildMesh. Unknown child of IndexedFaceSet: " + to_string((*ch_it)->Type) + ".");
}// for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
return;// mesh is build, nothing to do anymore.
}// if(pNodeElement.Type == CX3DImporter_NodeElement::ENET_IndexedFaceSet)
if(pNodeElement.Type == CX3DImporter_NodeElement::ENET_IndexedLineSet)
{
CX3DImporter_NodeElement_IndexedSet& tnemesh = *((CX3DImporter_NodeElement_IndexedSet*)&pNodeElement);// create alias for convenience
// at first search for <Coordinate> node and create mesh.
for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
{
if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Coordinate)
{
*pMesh = GeometryHelper_MakeMesh(tnemesh.CoordIndex, ((CX3DImporter_NodeElement_Coordinate*)*ch_it)->Value);
}
}
// copy additional information from children
for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
{
if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Color)
MeshGeometry_AddColor(**pMesh, tnemesh.CoordIndex, tnemesh.ColorIndex, ((CX3DImporter_NodeElement_Color*)*ch_it)->Value, tnemesh.ColorPerVertex);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_ColorRGBA)
MeshGeometry_AddColor(**pMesh, tnemesh.CoordIndex, tnemesh.ColorIndex, ((CX3DImporter_NodeElement_ColorRGBA*)*ch_it)->Value,
tnemesh.ColorPerVertex);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Coordinate)
{} // skip because already read when mesh created.
else
throw DeadlyImportError("Postprocess_BuildMesh. Unknown child of IndexedLineSet: " + to_string((*ch_it)->Type) + ".");
}// for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
return;// mesh is build, nothing to do anymore.
}// if(pNodeElement.Type == CX3DImporter_NodeElement::ENET_IndexedLineSet)
if((pNodeElement.Type == CX3DImporter_NodeElement::ENET_IndexedTriangleSet) ||
(pNodeElement.Type == CX3DImporter_NodeElement::ENET_IndexedTriangleFanSet) ||
(pNodeElement.Type == CX3DImporter_NodeElement::ENET_IndexedTriangleStripSet))
{
CX3DImporter_NodeElement_IndexedSet& tnemesh = *((CX3DImporter_NodeElement_IndexedSet*)&pNodeElement);// create alias for convenience
// at first search for <Coordinate> node and create mesh.
for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
{
if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Coordinate)
{
*pMesh = GeometryHelper_MakeMesh(tnemesh.CoordIndex, ((CX3DImporter_NodeElement_Coordinate*)*ch_it)->Value);
}
}
// copy additional information from children
for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
{
if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Color)
MeshGeometry_AddColor(**pMesh, tnemesh.CoordIndex, tnemesh.ColorIndex, ((CX3DImporter_NodeElement_Color*)*ch_it)->Value, tnemesh.ColorPerVertex);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_ColorRGBA)
MeshGeometry_AddColor(**pMesh, tnemesh.CoordIndex, tnemesh.ColorIndex, ((CX3DImporter_NodeElement_ColorRGBA*)*ch_it)->Value,
tnemesh.ColorPerVertex);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Coordinate)
{} // skip because already read when mesh created.
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Normal)
MeshGeometry_AddNormal(**pMesh, tnemesh.CoordIndex, tnemesh.NormalIndex, ((CX3DImporter_NodeElement_Normal*)*ch_it)->Value,
tnemesh.NormalPerVertex);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_TextureCoordinate)
MeshGeometry_AddTexCoord(**pMesh, tnemesh.CoordIndex, tnemesh.TexCoordIndex, ((CX3DImporter_NodeElement_TextureCoordinate*)*ch_it)->Value);
else
throw DeadlyImportError("Postprocess_BuildMesh. Unknown child of IndexedTriangleSet or IndexedTriangleFanSet, or \
IndexedTriangleStripSet: " + to_string((*ch_it)->Type) + ".");
}// for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
return;// mesh is build, nothing to do anymore.
}// if((pNodeElement.Type == CX3DImporter_NodeElement::ENET_IndexedTriangleFanSet) || (pNodeElement.Type == CX3DImporter_NodeElement::ENET_IndexedTriangleStripSet))
if(pNodeElement.Type == CX3DImporter_NodeElement::ENET_Extrusion)
{
CX3DImporter_NodeElement_IndexedSet& tnemesh = *((CX3DImporter_NodeElement_IndexedSet*)&pNodeElement);// create alias for convenience
*pMesh = GeometryHelper_MakeMesh(tnemesh.CoordIndex, tnemesh.Vertices);
return;// mesh is build, nothing to do anymore.
}// if(pNodeElement.Type == CX3DImporter_NodeElement::ENET_Extrusion)
//
// Primitives sets
//
if(pNodeElement.Type == CX3DImporter_NodeElement::ENET_PointSet)
{
CX3DImporter_NodeElement_Set& tnemesh = *((CX3DImporter_NodeElement_Set*)&pNodeElement);// create alias for convenience
// at first search for <Coordinate> node and create mesh.
for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
{
if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Coordinate)
{
std::vector<aiVector3D> vec_copy;
vec_copy.reserve(((CX3DImporter_NodeElement_Coordinate*)*ch_it)->Value.size());
for(std::list<aiVector3D>::const_iterator it = ((CX3DImporter_NodeElement_Coordinate*)*ch_it)->Value.begin();
it != ((CX3DImporter_NodeElement_Coordinate*)*ch_it)->Value.end(); it++)
{
vec_copy.push_back(*it);
}
*pMesh = StandardShapes::MakeMesh(vec_copy, 1);
}
}
// copy additional information from children
for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
{
if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Color)
MeshGeometry_AddColor(**pMesh, ((CX3DImporter_NodeElement_Color*)*ch_it)->Value, true);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_ColorRGBA)
MeshGeometry_AddColor(**pMesh, ((CX3DImporter_NodeElement_ColorRGBA*)*ch_it)->Value, true);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Coordinate)
{} // skip because already read when mesh created.
else
throw DeadlyImportError("Postprocess_BuildMesh. Unknown child of PointSet: " + to_string((*ch_it)->Type) + ".");
}// for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
return;// mesh is build, nothing to do anymore.
}// if(pNodeElement.Type == CX3DImporter_NodeElement::ENET_PointSet)
if(pNodeElement.Type == CX3DImporter_NodeElement::ENET_LineSet)
{
CX3DImporter_NodeElement_Set& tnemesh = *((CX3DImporter_NodeElement_Set*)&pNodeElement);// create alias for convenience
// at first search for <Coordinate> node and create mesh.
for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
{
if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Coordinate)
{
*pMesh = GeometryHelper_MakeMesh(tnemesh.CoordIndex, ((CX3DImporter_NodeElement_Coordinate*)*ch_it)->Value);
}
}
// copy additional information from children
for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
{
if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Color)
MeshGeometry_AddColor(**pMesh, ((CX3DImporter_NodeElement_Color*)*ch_it)->Value, true);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_ColorRGBA)
MeshGeometry_AddColor(**pMesh, ((CX3DImporter_NodeElement_ColorRGBA*)*ch_it)->Value, true);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Coordinate)
{} // skip because already read when mesh created.
else
throw DeadlyImportError("Postprocess_BuildMesh. Unknown child of LineSet: " + to_string((*ch_it)->Type) + ".");
}// for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
return;// mesh is build, nothing to do anymore.
}// if(pNodeElement.Type == CX3DImporter_NodeElement::ENET_LineSet)
if(pNodeElement.Type == CX3DImporter_NodeElement::ENET_TriangleFanSet)
{
CX3DImporter_NodeElement_Set& tnemesh = *((CX3DImporter_NodeElement_Set*)&pNodeElement);// create alias for convenience
// at first search for <Coordinate> node and create mesh.
for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
{
if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Coordinate)
{
*pMesh = GeometryHelper_MakeMesh(tnemesh.CoordIndex, ((CX3DImporter_NodeElement_Coordinate*)*ch_it)->Value);
}
}
// copy additional information from children
for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
{
if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Color)
MeshGeometry_AddColor(**pMesh, ((CX3DImporter_NodeElement_Color*)*ch_it)->Value,tnemesh.ColorPerVertex);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_ColorRGBA)
MeshGeometry_AddColor(**pMesh, ((CX3DImporter_NodeElement_ColorRGBA*)*ch_it)->Value, tnemesh.ColorPerVertex);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Coordinate)
{} // skip because already read when mesh created.
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Normal)
MeshGeometry_AddNormal(**pMesh, tnemesh.CoordIndex, tnemesh.NormalIndex, ((CX3DImporter_NodeElement_Normal*)*ch_it)->Value,
tnemesh.NormalPerVertex);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_TextureCoordinate)
MeshGeometry_AddTexCoord(**pMesh, tnemesh.CoordIndex, tnemesh.TexCoordIndex, ((CX3DImporter_NodeElement_TextureCoordinate*)*ch_it)->Value);
else
throw DeadlyImportError("Postprocess_BuildMesh. Unknown child of TrianlgeFanSet: " + to_string((*ch_it)->Type) + ".");
}// for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
return;// mesh is build, nothing to do anymore.
}// if(pNodeElement.Type == CX3DImporter_NodeElement::ENET_TriangleFanSet)
if(pNodeElement.Type == CX3DImporter_NodeElement::ENET_TriangleSet)
{
CX3DImporter_NodeElement_Set& tnemesh = *((CX3DImporter_NodeElement_Set*)&pNodeElement);// create alias for convenience
// at first search for <Coordinate> node and create mesh.
for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
{
if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Coordinate)
{
std::vector<aiVector3D> vec_copy;
vec_copy.reserve(((CX3DImporter_NodeElement_Coordinate*)*ch_it)->Value.size());
for(std::list<aiVector3D>::const_iterator it = ((CX3DImporter_NodeElement_Coordinate*)*ch_it)->Value.begin();
it != ((CX3DImporter_NodeElement_Coordinate*)*ch_it)->Value.end(); it++)
{
vec_copy.push_back(*it);
}
*pMesh = StandardShapes::MakeMesh(vec_copy, 3);
}
}
// copy additional information from children
for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
{
if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Color)
MeshGeometry_AddColor(**pMesh, ((CX3DImporter_NodeElement_Color*)*ch_it)->Value, tnemesh.ColorPerVertex);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_ColorRGBA)
MeshGeometry_AddColor(**pMesh, ((CX3DImporter_NodeElement_ColorRGBA*)*ch_it)->Value, tnemesh.ColorPerVertex);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Coordinate)
{} // skip because already read when mesh created.
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Normal)
MeshGeometry_AddNormal(**pMesh, tnemesh.CoordIndex, tnemesh.NormalIndex, ((CX3DImporter_NodeElement_Normal*)*ch_it)->Value,
tnemesh.NormalPerVertex);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_TextureCoordinate)
MeshGeometry_AddTexCoord(**pMesh, tnemesh.CoordIndex, tnemesh.TexCoordIndex, ((CX3DImporter_NodeElement_TextureCoordinate*)*ch_it)->Value);
else
throw DeadlyImportError("Postprocess_BuildMesh. Unknown child of TrianlgeSet: " + to_string((*ch_it)->Type) + ".");
}// for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
return;// mesh is build, nothing to do anymore.
}// if(pNodeElement.Type == CX3DImporter_NodeElement::ENET_TriangleSet)
if(pNodeElement.Type == CX3DImporter_NodeElement::ENET_TriangleStripSet)
{
CX3DImporter_NodeElement_Set& tnemesh = *((CX3DImporter_NodeElement_Set*)&pNodeElement);// create alias for convenience
// at first search for <Coordinate> node and create mesh.
for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
{
if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Coordinate)
{
*pMesh = GeometryHelper_MakeMesh(tnemesh.CoordIndex, ((CX3DImporter_NodeElement_Coordinate*)*ch_it)->Value);
}
}
// copy additional information from children
for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
{
if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Color)
MeshGeometry_AddColor(**pMesh, ((CX3DImporter_NodeElement_Color*)*ch_it)->Value, tnemesh.ColorPerVertex);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_ColorRGBA)
MeshGeometry_AddColor(**pMesh, ((CX3DImporter_NodeElement_ColorRGBA*)*ch_it)->Value, tnemesh.ColorPerVertex);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Coordinate)
{} // skip because already read when mesh created.
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_Normal)
MeshGeometry_AddNormal(**pMesh, tnemesh.CoordIndex, tnemesh.NormalIndex, ((CX3DImporter_NodeElement_Normal*)*ch_it)->Value,
tnemesh.NormalPerVertex);
else if((*ch_it)->Type == CX3DImporter_NodeElement::ENET_TextureCoordinate)
MeshGeometry_AddTexCoord(**pMesh, tnemesh.CoordIndex, tnemesh.TexCoordIndex, ((CX3DImporter_NodeElement_TextureCoordinate*)*ch_it)->Value);
else
throw DeadlyImportError("Postprocess_BuildMesh. Unknown child of TriangleStripSet: " + to_string((*ch_it)->Type) + ".");
}// for(std::list<CX3DImporter_NodeElement*>::iterator ch_it = tnemesh.Child.begin(); ch_it != tnemesh.Child.end(); ch_it++)
return;// mesh is build, nothing to do anymore.
}// if(pNodeElement.Type == CX3DImporter_NodeElement::ENET_TriangleStripSet)
throw DeadlyImportError("Postprocess_BuildMesh. Unknown mesh type: " + to_string(pNodeElement.Type) + ".");
}
void X3DImporter::Postprocess_BuildNode(const CX3DImporter_NodeElement& pNodeElement, aiNode& pSceneNode, std::list<aiMesh*>& pSceneMeshList,
std::list<aiMaterial*>& pSceneMaterialList, std::list<aiLight*>& pSceneLightList) const
{
std::list<CX3DImporter_NodeElement*>::const_iterator chit_begin = pNodeElement.Child.begin();
std::list<CX3DImporter_NodeElement*>::const_iterator chit_end = pNodeElement.Child.end();
std::list<aiNode*> SceneNode_Child;
std::list<unsigned int> SceneNode_Mesh;
// At first read all metadata
Postprocess_CollectMetadata(pNodeElement, pSceneNode);
// check if we have deal with grouping node. Which can contain transformation or switch
if(pNodeElement.Type == CX3DImporter_NodeElement::ENET_Group)
{
const CX3DImporter_NodeElement_Group& tne_group = *((CX3DImporter_NodeElement_Group*)&pNodeElement);// create alias for convenience
pSceneNode.mTransformation = tne_group.Transformation;
if(tne_group.UseChoice)
{
// If Choice is less than zero or greater than the number of nodes in the children field, nothing is chosen.
if((tne_group.Choice < 0) || ((size_t)tne_group.Choice >= pNodeElement.Child.size()))
{
chit_begin = pNodeElement.Child.end();
chit_end = pNodeElement.Child.end();
}
else
{
for(size_t i = 0; i < (size_t)tne_group.Choice; i++) chit_begin++;// forward iterator to choosed node.
chit_end = chit_begin;
chit_end++;// point end iterator to next element after choosed.
}
}// if(tne_group.UseChoice)
}// if(pNodeElement.Type == CX3DImporter_NodeElement::ENET_Group)
// Reserve memory for fast access and check children.
for(std::list<CX3DImporter_NodeElement*>::const_iterator it = chit_begin; it != chit_end; it++)
{// in this loop we do not read metadata because it's already read at begin.
if((*it)->Type == CX3DImporter_NodeElement::ENET_Group)
{
// if child is group then create new node and do recursive call.
aiNode* new_node = new aiNode;
new_node->mName = (*it)->ID;
new_node->mParent = &pSceneNode;
SceneNode_Child.push_back(new_node);
Postprocess_BuildNode(**it, *new_node, pSceneMeshList, pSceneMaterialList, pSceneLightList);
}
else if((*it)->Type == CX3DImporter_NodeElement::ENET_Shape)
{
// shape can contain only one geometry and one appearance nodes.
Postprocess_BuildShape(*((CX3DImporter_NodeElement_Shape*)*it), SceneNode_Mesh, pSceneMeshList, pSceneMaterialList);
}
else if(((*it)->Type == CX3DImporter_NodeElement::ENET_DirectionalLight) || ((*it)->Type == CX3DImporter_NodeElement::ENET_PointLight) ||
((*it)->Type == CX3DImporter_NodeElement::ENET_SpotLight))
{
Postprocess_BuildLight(*((CX3DImporter_NodeElement_Light*)*it), pSceneLightList);
}
else if(!PostprocessHelper_ElementIsMetadata((*it)->Type))// skip metadata
{
throw DeadlyImportError("Postprocess_BuildNode. Unknown type: " + to_string((*it)->Type) + ".");
}
}// for(std::list<CX3DImporter_NodeElement*>::const_iterator it = chit_begin; it != chit_end; it++)
// copy data about children and meshes to aiNode.
if(SceneNode_Child.size() > 0)
{
std::list<aiNode*>::const_iterator it = SceneNode_Child.begin();
pSceneNode.mNumChildren = SceneNode_Child.size();
pSceneNode.mChildren = new aiNode*[pSceneNode.mNumChildren];
for(size_t i = 0; i < pSceneNode.mNumChildren; i++) pSceneNode.mChildren[i] = *it++;
}
if(SceneNode_Mesh.size() > 0)
{
std::list<unsigned int>::const_iterator it = SceneNode_Mesh.begin();
pSceneNode.mNumMeshes = SceneNode_Mesh.size();
pSceneNode.mMeshes = new unsigned int[pSceneNode.mNumMeshes];
for(size_t i = 0; i < pSceneNode.mNumMeshes; i++) pSceneNode.mMeshes[i] = *it++;
}
// that's all. return to previous deals
}
void X3DImporter::Postprocess_BuildShape(const CX3DImporter_NodeElement_Shape& pShapeNodeElement, std::list<unsigned int>& pNodeMeshInd,
std::list<aiMesh*>& pSceneMeshList, std::list<aiMaterial*>& pSceneMaterialList) const
{
aiMaterial* tmat = nullptr;
aiMesh* tmesh = nullptr;
CX3DImporter_NodeElement::EType mesh_type = CX3DImporter_NodeElement::ENET_Invalid;
unsigned int mat_ind = 0;
for(std::list<CX3DImporter_NodeElement*>::const_iterator it = pShapeNodeElement.Child.begin(); it != pShapeNodeElement.Child.end(); it++)
{
if(PostprocessHelper_ElementIsMesh((*it)->Type))
{
Postprocess_BuildMesh(**it, &tmesh);
if(tmesh != nullptr)
{
// if mesh successfully built then add data about it to arrays
pNodeMeshInd.push_back(pSceneMeshList.size());
pSceneMeshList.push_back(tmesh);
// keep mesh type. Need above for texture coordinate generation.
mesh_type = (*it)->Type;
}
}
else if((*it)->Type == CX3DImporter_NodeElement::ENET_Appearance)
{
Postprocess_BuildMaterial(**it, &tmat);
if(tmat != nullptr)
{
// if material successfully built then add data about it to array
mat_ind = pSceneMaterialList.size();
pSceneMaterialList.push_back(tmat);
}
}
}// for(std::list<CX3DImporter_NodeElement*>::const_iterator it = pShapeNodeElement.Child.begin(); it != pShapeNodeElement.Child.end(); it++)
// associate read material with read mesh.
if((tmesh != nullptr) && (tmat != nullptr))
{
tmesh->mMaterialIndex = mat_ind;
// Check texture mapping. If material has texture but mesh has no texture coordinate then try to ask Assimp to generate texture coordinates.
if((tmat->GetTextureCount(aiTextureType_DIFFUSE) != 0) && !tmesh->HasTextureCoords(0))
{
int32_t tm;
aiVector3D tvec3;
switch(mesh_type)
{
case CX3DImporter_NodeElement::ENET_Box:
tm = aiTextureMapping_BOX;
break;
case CX3DImporter_NodeElement::ENET_Cone:
case CX3DImporter_NodeElement::ENET_Cylinder:
tm = aiTextureMapping_CYLINDER;
break;
case CX3DImporter_NodeElement::ENET_Sphere:
tm = aiTextureMapping_SPHERE;
break;
default:
tm = aiTextureMapping_PLANE;
break;
}// switch(mesh_type)
tmat->AddProperty(&tm, 1, AI_MATKEY_MAPPING_DIFFUSE(0));
}// if((tmat->GetTextureCount(aiTextureType_DIFFUSE) != 0) && !tmesh->HasTextureCoords(0))
}// if((tmesh != nullptr) && (tmat != nullptr))
}
void X3DImporter::Postprocess_CollectMetadata(const CX3DImporter_NodeElement& pNodeElement, aiNode& pSceneNode) const
{
std::list<CX3DImporter_NodeElement*> meta_list;
size_t meta_idx;
PostprocessHelper_CollectMetadata(pNodeElement, meta_list);// find metadata in current node element.
if ( !meta_list.empty() )
{
if ( pSceneNode.mMetaData != nullptr ) {
throw DeadlyImportError( "Postprocess. MetaData member in node are not nullptr. Something went wrong." );
}
// copy collected metadata to output node.
pSceneNode.mMetaData = aiMetadata::Alloc( meta_list.size() );
meta_idx = 0;
for(std::list<CX3DImporter_NodeElement*>::const_iterator it = meta_list.begin(); it != meta_list.end(); it++, meta_idx++)
{
CX3DImporter_NodeElement_Meta* cur_meta = (CX3DImporter_NodeElement_Meta*)*it;
// due to limitations we can add only first element of value list.
// Add an element according to its type.
if((*it)->Type == CX3DImporter_NodeElement::ENET_MetaBoolean)
{
if(((CX3DImporter_NodeElement_MetaBoolean*)cur_meta)->Value.size() > 0)
pSceneNode.mMetaData->Set(meta_idx, cur_meta->Name, *(((CX3DImporter_NodeElement_MetaBoolean*)cur_meta)->Value.begin()));
}
else if((*it)->Type == CX3DImporter_NodeElement::ENET_MetaDouble)
{
if(((CX3DImporter_NodeElement_MetaDouble*)cur_meta)->Value.size() > 0)
pSceneNode.mMetaData->Set(meta_idx, cur_meta->Name, (float)*(((CX3DImporter_NodeElement_MetaDouble*)cur_meta)->Value.begin()));
}
else if((*it)->Type == CX3DImporter_NodeElement::ENET_MetaFloat)
{
if(((CX3DImporter_NodeElement_MetaFloat*)cur_meta)->Value.size() > 0)
pSceneNode.mMetaData->Set(meta_idx, cur_meta->Name, *(((CX3DImporter_NodeElement_MetaFloat*)cur_meta)->Value.begin()));
}
else if((*it)->Type == CX3DImporter_NodeElement::ENET_MetaInteger)
{
if(((CX3DImporter_NodeElement_MetaInteger*)cur_meta)->Value.size() > 0)
pSceneNode.mMetaData->Set(meta_idx, cur_meta->Name, *(((CX3DImporter_NodeElement_MetaInteger*)cur_meta)->Value.begin()));
}
else if((*it)->Type == CX3DImporter_NodeElement::ENET_MetaString)
{
if(((CX3DImporter_NodeElement_MetaString*)cur_meta)->Value.size() > 0)
{
aiString tstr(((CX3DImporter_NodeElement_MetaString*)cur_meta)->Value.begin()->data());
pSceneNode.mMetaData->Set(meta_idx, cur_meta->Name, tstr);
}
}
else
{
throw DeadlyImportError("Postprocess. Unknown metadata type.");
}// if((*it)->Type == CX3DImporter_NodeElement::ENET_Meta*) else
}// for(std::list<CX3DImporter_NodeElement*>::const_iterator it = meta_list.begin(); it != meta_list.end(); it++)
}// if( !meta_list.empty() )
}
}// namespace Assimp
#endif // !ASSIMP_BUILD_NO_X3D_IMPORTER