From 3a7d892164b17d4da46244015bbbe73762a70ea0 Mon Sep 17 00:00:00 2001
From: kervala <kervala@localhost>
Date: Wed, 19 Sep 2012 19:38:37 +0200
Subject: [PATCH] Added: shape2obj project to convert NeL .shape to standard
 .obj file format

---
 code/nel/tools/3d/shape2obj/main.cpp | 668 +++++++++++++++++++++++++++
 1 file changed, 668 insertions(+)
 create mode 100644 code/nel/tools/3d/shape2obj/main.cpp

diff --git a/code/nel/tools/3d/shape2obj/main.cpp b/code/nel/tools/3d/shape2obj/main.cpp
new file mode 100644
index 000000000..91945bdb6
--- /dev/null
+++ b/code/nel/tools/3d/shape2obj/main.cpp
@@ -0,0 +1,668 @@
+// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
+// Copyright (C) 2010  Winch Gate Property Limited
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#include <nel/misc/file.h>
+#include <nel/3d/mesh.h>
+#include <nel/3d/mesh_mrm.h> 
+#include <nel/3d/mesh_mrm_skinned.h> 
+#include <nel/3d/scene.h> 
+#include <nel/3d/register_3d.h>
+#include <nel/misc/app_context.h>
+#include <nel/misc/o_xml.h>
+#include <nel/misc/i_xml.h>
+
+#include <fstream>
+#include <iostream>
+
+using namespace NLMISC;
+using namespace NL3D;
+using namespace std;
+
+struct CVertex
+{
+	CVector vertex;
+	CVector normal;
+	CUV uv;
+};
+
+bool operator == (const CVertex &v1, const CVertex &v2)
+{
+	return (v1.vertex == v2.vertex) && (v1.normal == v2.normal) && (v1.uv == v2.uv);
+}
+
+bool operator < (const CVertex &v1, const CVertex &v2)
+{
+	return (v1.vertex < v2.vertex);
+}
+
+const CIndexBuffer *getRdrPassPrimitiveBlock(const CMeshMRMGeom *mesh, uint lodId, uint renderPass)
+{
+	return &(mesh->getRdrPassPrimitiveBlock(lodId, renderPass));
+}
+
+// ***************************************************************************
+
+const CIndexBuffer *getRdrPassPrimitiveBlock(const CMeshMRMSkinnedGeom *mesh, uint lodId, uint renderPass)
+{
+	static CIndexBuffer block;
+	mesh->getRdrPassPrimitiveBlock(lodId, renderPass, block);
+	return &block;
+}
+
+// ***************************************************************************
+
+bool ProcessMeshMRMSkinned(const std::string &filename, IShape *shapeMesh);
+bool ProcessMeshMRM(const std::string &filename, IShape *shapeMesh);
+bool ProcessMesh(const std::string &filename, IShape *shapeMesh);
+
+int main(int argc, char* argv[])
+{
+	if (argc < 2)
+	{
+		cout << "Syntax : shape2obj <NeL .shape file>" << endl;
+
+		return 1;
+	}
+
+	if (!NLMISC::INelContext::isContextInitialised()) new NLMISC::CApplicationContext();
+
+	registerSerial3d();
+	CScene::registerBasics();
+
+	IShape *shapeMesh = NULL;
+
+	CIFile ifile;
+
+	// Sream a shape
+	CShapeStream streamShape;
+
+	string filename = argv[1];
+
+	if (!ifile.open(filename)) return 1;
+
+	try
+	{
+		// Stream it
+		streamShape.serial(ifile);
+
+		// Add the shape
+		shapeMesh = streamShape.getShapePointer();
+	}
+	catch (Exception& e)
+	{
+		cout << "Error : " << e.what() << endl;
+
+		return 1;
+	}
+
+	if (ProcessMeshMRMSkinned(filename, shapeMesh)) return 0;
+	if (ProcessMeshMRM(filename, shapeMesh)) return 0;
+	if (ProcessMesh(filename, shapeMesh)) return 0;
+
+	return 0;
+}
+
+bool ProcessMeshMRMSkinned(const std::string &filename, IShape *shapeMesh)
+{
+	CMeshMRMSkinned *mesh = dynamic_cast<CMeshMRMSkinned*>(shapeMesh);
+
+	if (!mesh) return false;
+
+	COFile ofile;
+
+	CMeshMRMSkinnedGeom* meshIn = (CMeshMRMSkinnedGeom*)&mesh->getMeshGeom();
+
+	std::vector<CMesh::CSkinWeight>	skinWeights;
+	meshIn->getSkinWeights(skinWeights);
+	CVertexBuffer vertexBuffer;
+	meshIn->getVertexBuffer(vertexBuffer);
+
+	CVertexBufferRead vba;
+	vertexBuffer.lock (vba);
+	uint	i, j;
+
+	// **** Select the Lod.
+	uint	numLods= meshIn->getNbLod();
+
+	// get the max tris displayed
+	float	numMeshFacesMin= (float)meshIn->getLevelDetail().MinFaceUsed;
+	float	numMeshFacesMax= (float)meshIn->getLevelDetail().MaxFaceUsed;
+	// find the lod
+	sint lodId = numLods-1;
+
+	// **** First, for the best lod indicate what vertex is used or not. Also index geomorphs to know what real vertex is used
+	vector<sint>		vertexUsed;
+	// -1 means "not used"
+	vertexUsed.resize(skinWeights.size(), -1);
+	// Parse all triangles.
+	for(i=0;i<meshIn->getNbRdrPass(lodId); ++i)
+	{
+		const CIndexBuffer *pb = getRdrPassPrimitiveBlock(meshIn, lodId, i);
+		CIndexBufferRead iba;
+		pb->lock (iba);
+		if (iba.getFormat() == CIndexBuffer::Indices32)
+		{
+			const uint32	*triPtr= (const uint32 *) iba.getPtr();
+			for(j=0;j<pb->getNumIndexes(); ++j)
+			{
+				uint	idx= *triPtr;
+				// Flag the vertex with its own index => used.
+				vertexUsed[idx]= idx;
+				triPtr++;
+			}
+		}
+		else
+		{
+			const uint16	*triPtr= (const uint16 *) iba.getPtr();
+			for(j=0;j<pb->getNumIndexes(); ++j)
+			{
+				uint	idx= *triPtr;
+				// Flag the vertex with its own index => used.
+				vertexUsed[idx]= idx;
+				triPtr++;
+			}
+		}
+	}
+	// Special for Geomorphs: must take The End target vertex.
+	const std::vector<CMRMWedgeGeom>	&geomorphs= meshIn->getGeomorphs(lodId);
+	for(i=0;i<geomorphs.size(); ++i)
+	{
+		uint	trueIdx= geomorphs[i].End;
+		// map to the Geomorph Target.
+		vertexUsed[i]= trueIdx;
+		// mark also the real vertex used as used.
+		vertexUsed[trueIdx]= trueIdx;
+	}
+
+
+	// **** For all vertices used (not geomorphs), compute vertex Skins.
+	vector<CVertex>		shadowVertices;
+	vector<sint>		vertexToVSkin;
+	vertexToVSkin.resize(vertexUsed.size());
+	shadowVertices.reserve(vertexUsed.size());
+	// use a map to remove duplicates (because of UV/normal discontinuities before!!)
+	map<CVertex, uint>	shadowVertexMap;
+	uint						numMerged= 0;
+	// Skip Geomorphs.
+	for(i=geomorphs.size();i<vertexUsed.size(); ++i)
+	{
+		// If this vertex is used.
+		if(vertexUsed[i]!=-1)
+		{
+			// Build the vertex
+			CVertex shadowVert;
+			CUV uv;
+			shadowVert.vertex = *(CVector*)vba.getVertexCoordPointer(i);
+			shadowVert.normal = *(CVector*)vba.getNormalCoordPointer(i);
+			shadowVert.uv = *(CUV*)vba.getTexCoordPointer(i);
+/*
+			// Select the best Matrix.
+			CMesh::CSkinWeight		sw= skinWeights[i];
+			float	maxW= 0;
+			uint	matId= 0;
+			for(j=0;j<NL3D_MESH_SKINNING_MAX_MATRIX;j++)
+			{
+				// if no more matrix influenced, stop
+				if(sw.Weights[j]==0)
+					break;
+				if(sw.Weights[j]>maxW)
+				{
+					matId= sw.MatrixId[j];
+					maxW= sw.Weights[j];
+				}
+			}
+//			shadowVert.MatrixId= matId;
+*/
+			// If dont find the shadowVertex in the map.
+			map<CVertex, uint>::iterator		it= shadowVertexMap.find(shadowVert);
+			if(it==shadowVertexMap.end())
+			{
+				// Append
+				uint	index= shadowVertices.size();
+				vertexToVSkin[i]= index;
+				shadowVertices.push_back(shadowVert);
+				shadowVertexMap.insert(make_pair(shadowVert, index));
+			}
+			else
+			{
+				// Ok, map.
+				vertexToVSkin[i]= it->second;
+				numMerged++;
+			}
+
+		}
+	}
+
+	ofstream ofs(string(filename + ".obj").c_str());
+
+	for(size_t y = 0; y < shadowVertices.size(); ++y)
+	{
+		CVector v = shadowVertices[y].vertex;
+		CVector vn = shadowVertices[y].normal;
+		CUV vt = shadowVertices[y].uv;
+
+		ofs << "v " << v.x << " " << v.y << " " << v.z << endl;
+		ofs << "vn " << vn.x << " " << vn.y << " " << vn.z << endl;
+		ofs << "vt " << vt.U << " " << vt.V << endl;
+	}
+
+	// **** Get All Faces 
+	// Final List Of Triangles that match the bone.
+	vector<uint32>			shadowTriangles;
+	shadowTriangles.reserve(1000);
+	// Parse all input tri of the mesh.
+	for(i=0; i<meshIn->getNbRdrPass(lodId); ++i)
+	{
+		ofs << "g pass" << i << endl;
+
+		const CIndexBuffer *pb = getRdrPassPrimitiveBlock(meshIn, lodId, i);
+		CIndexBufferRead iba;
+		pb->lock (iba);
+		if (iba.getFormat() == CIndexBuffer::Indices32)
+		{
+			const uint32	*triPtr= (const uint32 *) iba.getPtr();
+
+			for(j=0; j<pb->getNumIndexes(); ++j)
+			{
+				uint	idx= *triPtr;
+				// Get the real Vertex (ie not the geomporhed one).
+				idx= vertexUsed[idx];
+				// Get the ShadowVertex associated
+				idx= vertexToVSkin[idx];
+
+				shadowTriangles.push_back(idx);
+				triPtr++;
+			}
+		}
+		else
+		{
+			const uint16	*triPtr= (const uint16 *) iba.getPtr();
+			for(j=0; j<pb->getNumIndexes(); ++j)
+			{
+				uint	idx= *triPtr;
+				// Get the real Vertex (ie not the geomporhed one).
+				idx= vertexUsed[idx];
+				// Get the ShadowVertex associated
+				idx= vertexToVSkin[idx];
+
+				shadowTriangles.push_back(idx);
+				triPtr++;
+			}
+		}
+
+		for(size_t pass = 0; pass<shadowTriangles.size(); pass += 3)
+		{
+			ofs << "f " << shadowTriangles[pass]+1 << "/" << shadowTriangles[pass]+1 << "/" << shadowTriangles[pass]+1 << " ";
+			ofs << shadowTriangles[pass+1]+1 << "/" << shadowTriangles[pass+1]+1 << "/" << shadowTriangles[pass+1]+1 << " ";
+			ofs << shadowTriangles[pass+2]+1 << "/" << shadowTriangles[pass+2]+1 << "/" << shadowTriangles[pass+2]+1 << endl;
+		}
+
+		shadowTriangles.clear();
+	}
+
+	ofs.close();
+
+	return true;
+}
+
+bool ProcessMeshMRM(const std::string &filename, IShape *shapeMesh)
+{
+	CMeshMRM *mesh = dynamic_cast<CMeshMRM*>(shapeMesh);
+
+	if (!mesh) return false;
+
+	COFile ofile;
+
+	CMeshMRMGeom* meshIn = (CMeshMRMGeom*)&mesh->getMeshGeom();
+
+	std::vector<CMesh::CSkinWeight>	skinWeights = meshIn->getSkinWeights();
+	CVertexBuffer vertexBuffer = meshIn->getVertexBuffer();
+
+	CVertexBufferRead vba;
+	vertexBuffer.lock (vba);
+	uint	i, j;
+
+	// **** Select the Lod.
+	uint	numLods= meshIn->getNbLod();
+
+	// get the max tris displayed
+	float	numMeshFacesMin= (float)meshIn->getLevelDetail().MinFaceUsed;
+	float	numMeshFacesMax= (float)meshIn->getLevelDetail().MaxFaceUsed;
+	// find the lod
+	sint lodId = numLods-1;
+
+	// **** First, for the best lod indicate what vertex is used or not. Also index geomorphs to know what real vertex is used
+	vector<sint>		vertexUsed;
+	// -1 means "not used"
+	vertexUsed.resize(skinWeights.size(), -1);
+	// Parse all triangles.
+	for(i=0;i<meshIn->getNbRdrPass(lodId); ++i)
+	{
+		const CIndexBuffer *pb = getRdrPassPrimitiveBlock(meshIn, lodId, i);
+		CIndexBufferRead iba;
+		pb->lock (iba);
+		if (iba.getFormat() == CIndexBuffer::Indices32)
+		{
+			const uint32	*triPtr= (const uint32 *) iba.getPtr();
+			for(j=0;j<pb->getNumIndexes(); ++j)
+			{
+				uint	idx= *triPtr;
+				// Flag the vertex with its own index => used.
+				vertexUsed[idx]= idx;
+				triPtr++;
+			}
+		}
+		else
+		{
+			const uint16	*triPtr= (const uint16 *) iba.getPtr();
+			for(j=0;j<pb->getNumIndexes(); ++j)
+			{
+				uint	idx= *triPtr;
+				// Flag the vertex with its own index => used.
+				vertexUsed[idx]= idx;
+				triPtr++;
+			}
+		}
+	}
+	// Special for Geomorphs: must take The End target vertex.
+	const std::vector<CMRMWedgeGeom>	&geomorphs= meshIn->getGeomorphs(lodId);
+	for(i=0;i<geomorphs.size(); ++i)
+	{
+		uint	trueIdx= geomorphs[i].End;
+		// map to the Geomorph Target.
+		vertexUsed[i]= trueIdx;
+		// mark also the real vertex used as used.
+		vertexUsed[trueIdx]= trueIdx;
+	}
+
+
+	// **** For all vertices used (not geomorphs), compute vertex Skins.
+	vector<CVertex>		shadowVertices;
+	vector<sint>		vertexToVSkin;
+	vertexToVSkin.resize(vertexUsed.size());
+	shadowVertices.reserve(vertexUsed.size());
+	// use a map to remove duplicates (because of UV/normal discontinuities before!!)
+	map<CVertex, uint>	shadowVertexMap;
+	uint						numMerged= 0;
+	// Skip Geomorphs.
+	for(i=geomorphs.size();i<vertexUsed.size(); ++i)
+	{
+		// If this vertex is used.
+		if(vertexUsed[i]!=-1)
+		{
+			// Build the vertex
+			CVertex shadowVert;
+			CUV uv;
+			shadowVert.vertex = *(CVector*)vba.getVertexCoordPointer(i);
+			shadowVert.normal = *(CVector*)vba.getNormalCoordPointer(i);
+			shadowVert.uv = *(CUV*)vba.getTexCoordPointer(i);
+/*
+			// Select the best Matrix.
+			CMesh::CSkinWeight		sw= skinWeights[i];
+			float	maxW= 0;
+			uint	matId= 0;
+			for(j=0;j<NL3D_MESH_SKINNING_MAX_MATRIX;j++)
+			{
+				// if no more matrix influenced, stop
+				if(sw.Weights[j]==0)
+					break;
+				if(sw.Weights[j]>maxW)
+				{
+					matId= sw.MatrixId[j];
+					maxW= sw.Weights[j];
+				}
+			}
+//			shadowVert.MatrixId= matId;
+*/
+			// If dont find the shadowVertex in the map.
+			map<CVertex, uint>::iterator		it= shadowVertexMap.find(shadowVert);
+			if(it==shadowVertexMap.end())
+			{
+				// Append
+				uint	index= shadowVertices.size();
+				vertexToVSkin[i]= index;
+				shadowVertices.push_back(shadowVert);
+				shadowVertexMap.insert(make_pair(shadowVert, index));
+			}
+			else
+			{
+				// Ok, map.
+				vertexToVSkin[i]= it->second;
+				numMerged++;
+			}
+
+		}
+	}
+
+	ofstream ofs(string(filename + ".obj").c_str());
+
+	for(size_t y = 0; y < shadowVertices.size(); ++y)
+	{
+		CVector v = shadowVertices[y].vertex;
+		CVector vn = shadowVertices[y].normal;
+		CUV vt = shadowVertices[y].uv;
+
+		ofs << "v " << v.x << " " << v.y << " " << v.z << endl;
+		ofs << "vn " << vn.x << " " << vn.y << " " << vn.z << endl;
+		ofs << "vt " << vt.U << " " << vt.V << endl;
+	}
+
+	// **** Get All Faces 
+	// Final List Of Triangles that match the bone.
+	vector<uint32>			shadowTriangles;
+	shadowTriangles.reserve(1000);
+	// Parse all input tri of the mesh.
+	for(i=0; i<meshIn->getNbRdrPass(lodId); ++i)
+	{
+		ofs << "g pass" << i << endl;
+
+		const CIndexBuffer *pb = getRdrPassPrimitiveBlock(meshIn, lodId, i);
+		CIndexBufferRead iba;
+		pb->lock (iba);
+		if (iba.getFormat() == CIndexBuffer::Indices32)
+		{
+			const uint32	*triPtr= (const uint32 *) iba.getPtr();
+
+			for(j=0; j<pb->getNumIndexes(); ++j)
+			{
+				uint	idx= *triPtr;
+				// Get the real Vertex (ie not the geomporhed one).
+				idx= vertexUsed[idx];
+				// Get the ShadowVertex associated
+				idx= vertexToVSkin[idx];
+
+				shadowTriangles.push_back(idx);
+				triPtr++;
+			}
+		}
+		else
+		{
+			const uint16	*triPtr= (const uint16 *) iba.getPtr();
+			for(j=0; j<pb->getNumIndexes(); ++j)
+			{
+				uint	idx= *triPtr;
+				// Get the real Vertex (ie not the geomporhed one).
+				idx= vertexUsed[idx];
+				// Get the ShadowVertex associated
+				idx= vertexToVSkin[idx];
+
+				shadowTriangles.push_back(idx);
+				triPtr++;
+			}
+		}
+
+		for(size_t pass = 0; pass<shadowTriangles.size(); pass += 3)
+		{
+			ofs << "f " << shadowTriangles[pass]+1 << "/" << shadowTriangles[pass]+1 << "/" << shadowTriangles[pass]+1 << " ";
+			ofs << shadowTriangles[pass+1]+1 << "/" << shadowTriangles[pass+1]+1 << "/" << shadowTriangles[pass+1]+1 << " ";
+			ofs << shadowTriangles[pass+2]+1 << "/" << shadowTriangles[pass+2]+1 << "/" << shadowTriangles[pass+2]+1 << endl;
+		}
+
+		shadowTriangles.clear();
+	}
+
+	ofs.close();
+
+	return true;
+}
+
+bool ProcessMesh(const std::string &filename, IShape *shapeMesh)
+{
+	CMesh *mesh = dynamic_cast<CMesh*>(shapeMesh);
+
+	if (!mesh) return false;
+
+	COFile ofile;
+
+	CMeshGeom* meshIn = (CMeshGeom*)&mesh->getMeshGeom();
+
+	CVertexBuffer vertexBuffer = meshIn->getVertexBuffer();
+
+//	CVertexBufferRead vba;
+//	vertexBuffer.lock (vba);
+
+	uint i = vertexBuffer.getNumVertices();
+
+	std::vector<NLMISC::CVector> vertices;
+	meshIn->retrieveVertices(vertices);
+
+	std::vector<uint32> indices;
+	meshIn->retrieveTriangles(indices);
+
+
+	// **** For all vertices used (not geomorphs), compute vertex Skins.
+	vector<CVertex>		shadowVertices;
+	vector<sint>		vertexToVSkin;
+	vertexToVSkin.resize(indices.size());
+	shadowVertices.reserve(indices.size());
+	// use a map to remove duplicates (because of UV/normal discontinuities before!!)
+	map<CVertex, uint>	shadowVertexMap;
+	uint						numMerged= 0;
+	// Skip Geomorphs.
+	for(i=0;i<indices.size(); ++i)
+	{
+		// Build the vertex
+		CVertex shadowVert;
+		CUV uv;
+		shadowVert.vertex = *(CVector*)vba.getVertexCoordPointer(i);
+		shadowVert.normal = *(CVector*)vba.getNormalCoordPointer(i);
+		shadowVert.uv = *(CUV*)vba.getTexCoordPointer(i);
+
+		// Select the best Matrix.
+		CMesh::CSkinWeight		sw= skinWeights[i];
+		float	maxW= 0;
+		uint	matId= 0;
+		for(j=0;j<NL3D_MESH_SKINNING_MAX_MATRIX;j++)
+		{
+			// if no more matrix influenced, stop
+			if(sw.Weights[j]==0)
+				break;
+			if(sw.Weights[j]>maxW)
+			{
+				matId= sw.MatrixId[j];
+				maxW= sw.Weights[j];
+			}
+		}
+
+		// If dont find the shadowVertex in the map.
+		map<CVertex, uint>::iterator		it= shadowVertexMap.find(shadowVert);
+		if(it==shadowVertexMap.end())
+		{
+			// Append
+			uint	index= shadowVertices.size();
+			vertexToVSkin[i]= index;
+			shadowVertices.push_back(shadowVert);
+			shadowVertexMap.insert(make_pair(shadowVert, index));
+		}
+		else
+		{
+			// Ok, map.
+			vertexToVSkin[i]= it->second;
+			numMerged++;
+		}
+	}
+
+	ofstream ofs(string(filename + ".obj").c_str());
+
+	for(size_t y = 0; y < shadowVertices.size(); ++y)
+	{
+		CVector v = shadowVertices[y].vertex;
+		CVector vn = shadowVertices[y].normal;
+		CUV vt = shadowVertices[y].uv;
+
+		ofs << "v " << v.x << " " << v.y << " " << v.z << endl;
+		ofs << "vn " << vn.x << " " << vn.y << " " << vn.z << endl;
+		ofs << "vt " << vt.U << " " << vt.V << endl;
+	}
+
+	// **** Get All Faces 
+	// Final List Of Triangles that match the bone.
+	vector<uint32>			shadowTriangles;
+	shadowTriangles.reserve(1000);
+	// Parse all input tri of the mesh.
+	for(i=0; i<meshIn->getNbRdrPass(lodId); ++i)
+	{
+		ofs << "g pass" << i << endl;
+
+		const CIndexBuffer *pb = getRdrPassPrimitiveBlock(meshIn, lodId, i);
+		CIndexBufferRead iba;
+		pb->lock (iba);
+		if (iba.getFormat() == CIndexBuffer::Indices32)
+		{
+			const uint32	*triPtr= (const uint32 *) iba.getPtr();
+
+			for(j=0; j<pb->getNumIndexes(); ++j)
+			{
+				uint	idx= *triPtr;
+				// Get the real Vertex (ie not the geomporhed one).
+				idx= vertexUsed[idx];
+				// Get the ShadowVertex associated
+				idx= vertexToVSkin[idx];
+
+				shadowTriangles.push_back(idx);
+				triPtr++;
+			}
+		}
+		else
+		{
+			const uint16	*triPtr= (const uint16 *) iba.getPtr();
+			for(j=0; j<pb->getNumIndexes(); ++j)
+			{
+				uint	idx= *triPtr;
+				// Get the real Vertex (ie not the geomporhed one).
+				idx= vertexUsed[idx];
+				// Get the ShadowVertex associated
+				idx= vertexToVSkin[idx];
+
+				shadowTriangles.push_back(idx);
+				triPtr++;
+			}
+		}
+
+		for(size_t pass = 0; pass<shadowTriangles.size(); pass += 3)
+		{
+			ofs << "f " << shadowTriangles[pass]+1 << "/" << shadowTriangles[pass]+1 << "/" << shadowTriangles[pass]+1 << " ";
+			ofs << shadowTriangles[pass+1]+1 << "/" << shadowTriangles[pass+1]+1 << "/" << shadowTriangles[pass+1]+1 << " ";
+			ofs << shadowTriangles[pass+2]+1 << "/" << shadowTriangles[pass+2]+1 << "/" << shadowTriangles[pass+2]+1 << endl;
+		}
+
+		shadowTriangles.clear();
+	}
+
+	ofs.close();
+
+	return true;
+}