nuclear@0: /*
nuclear@0: Open Asset Import Library (assimp)
nuclear@0: ----------------------------------------------------------------------
nuclear@0: 
nuclear@0: Copyright (c) 2006-2012, assimp team
nuclear@0: All rights reserved.
nuclear@0: 
nuclear@0: Redistribution and use of this software in source and binary forms, 
nuclear@0: with or without modification, are permitted provided that the 
nuclear@0: following conditions are met:
nuclear@0: 
nuclear@0: * Redistributions of source code must retain the above
nuclear@0:   copyright notice, this list of conditions and the
nuclear@0:   following disclaimer.
nuclear@0: 
nuclear@0: * Redistributions in binary form must reproduce the above
nuclear@0:   copyright notice, this list of conditions and the
nuclear@0:   following disclaimer in the documentation and/or other
nuclear@0:   materials provided with the distribution.
nuclear@0: 
nuclear@0: * Neither the name of the assimp team, nor the names of its
nuclear@0:   contributors may be used to endorse or promote products
nuclear@0:   derived from this software without specific prior
nuclear@0:   written permission of the assimp team.
nuclear@0: 
nuclear@0: THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
nuclear@0: "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
nuclear@0: LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
nuclear@0: A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
nuclear@0: OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
nuclear@0: SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
nuclear@0: LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
nuclear@0: DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
nuclear@0: THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
nuclear@0: (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
nuclear@0: OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
nuclear@0: 
nuclear@0: ----------------------------------------------------------------------
nuclear@0: */
nuclear@0: 
nuclear@0: /**
nuclear@0: This file contains material related code. This is
nuclear@0: spilitted up from the main file OgreImporter.cpp
nuclear@0: to make it shorter easier to maintain.
nuclear@0: */
nuclear@0: #include "AssimpPCH.h"
nuclear@0: 
nuclear@0: #ifndef ASSIMP_BUILD_NO_OGRE_IMPORTER
nuclear@0: 
nuclear@0: #include <vector>
nuclear@0: #include <sstream>
nuclear@0: using namespace std;
nuclear@0: 
nuclear@0: #include "OgreImporter.hpp"
nuclear@0: #include "irrXMLWrapper.h"
nuclear@0: #include "TinyFormatter.h"
nuclear@0: 
nuclear@0: namespace Assimp
nuclear@0: {
nuclear@0: namespace Ogre
nuclear@0: {
nuclear@0: 
nuclear@0: 
nuclear@0: 
nuclear@0: aiMaterial* OgreImporter::LoadMaterial(const std::string MaterialName) const
nuclear@0: {
nuclear@0: 	/*For better understanding of the material parser, here is a material example file:
nuclear@0: 
nuclear@0: 	material Sarg
nuclear@0: 	{
nuclear@0: 		receive_shadows on
nuclear@0: 		technique
nuclear@0: 		{
nuclear@0: 			pass
nuclear@0: 			{
nuclear@0: 				ambient 0.500000 0.500000 0.500000 1.000000
nuclear@0: 				diffuse 0.640000 0.640000 0.640000 1.000000
nuclear@0: 				specular 0.500000 0.500000 0.500000 1.000000 12.500000
nuclear@0: 				emissive 0.000000 0.000000 0.000000 1.000000
nuclear@0: 				texture_unit
nuclear@0: 				{
nuclear@0: 					texture SargTextur.tga
nuclear@0: 					tex_address_mode wrap
nuclear@0: 					filtering linear linear none
nuclear@0: 				}
nuclear@0: 			}
nuclear@0: 		}
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	*/
nuclear@0: 
nuclear@0: 	/*and here is another one:
nuclear@0: 
nuclear@0: 	import * from abstract_base_passes_depth.material
nuclear@0: 	import * from abstract_base.material
nuclear@0: 	import * from mat_shadow_caster.material
nuclear@0: 	import * from mat_character_singlepass.material
nuclear@0: 
nuclear@0: 	material hero/hair/caster : mat_shadow_caster_skin_areject
nuclear@0: 	{
nuclear@0: 	  set $diffuse_map "hero_hair_alpha_c.dds"
nuclear@0: 	}
nuclear@0: 	
nuclear@0: 	material hero/hair_alpha : mat_char_cns_singlepass_areject_4weights
nuclear@0: 	{
nuclear@0: 	  set $diffuse_map  "hero_hair_alpha_c.dds"
nuclear@0: 	  set $specular_map "hero_hair_alpha_s.dds"
nuclear@0: 	  set $normal_map   "hero_hair_alpha_n.dds"
nuclear@0: 	  set $light_map    "black_lightmap.dds"
nuclear@0:   
nuclear@0: 	  set $shadow_caster_material "hero/hair/caster"
nuclear@0: 	}
nuclear@0: 	*/
nuclear@0: 
nuclear@0: 	//Read the file into memory and put it in a stringstream
nuclear@0: 	stringstream ss;
nuclear@0: 	{// after this block, the temporarly loaded data will be released
nuclear@0: 
nuclear@0: 		/*
nuclear@0: 		We have 3 guesses for the Material filename:
nuclear@0: 		- the Material Name
nuclear@0: 		- the Name of the mesh file
nuclear@0: 		- the DefaultMaterialLib (which you can set before importing)
nuclear@0: 		*/
nuclear@0: 		
nuclear@0: 		IOStream* MatFilePtr=m_CurrentIOHandler->Open(MaterialName+".material");
nuclear@0: 		if(NULL==MatFilePtr)
nuclear@0: 		{
nuclear@0: 			//the filename typically ends with .mesh or .mesh.xml
nuclear@0: 			const string MaterialFileName=m_CurrentFilename.substr(0, m_CurrentFilename.rfind(".mesh"))+".material";
nuclear@0: 
nuclear@0: 			MatFilePtr=m_CurrentIOHandler->Open(MaterialFileName);
nuclear@0: 			if(NULL==MatFilePtr)
nuclear@0: 			{
nuclear@0: 				//try the default mat Library
nuclear@0: 				if(NULL==MatFilePtr)
nuclear@0: 				{
nuclear@0: 				
nuclear@0: 					MatFilePtr=m_CurrentIOHandler->Open(m_MaterialLibFilename);
nuclear@0: 					if(NULL==MatFilePtr)
nuclear@0: 					{
nuclear@0: 						DefaultLogger::get()->error(m_MaterialLibFilename+" and "+MaterialFileName + " could not be opened, Material will not be loaded!");
nuclear@0: 						return new aiMaterial();
nuclear@0: 					}
nuclear@0: 				}
nuclear@0: 			}
nuclear@0: 		}
nuclear@0: 		//Fill the stream
nuclear@0: 		boost::scoped_ptr<IOStream> MaterialFile(MatFilePtr);
nuclear@0: 		if(MaterialFile->FileSize()>0)
nuclear@0: 		{
nuclear@0: 			vector<char> FileData(MaterialFile->FileSize());
nuclear@0: 			MaterialFile->Read(&FileData[0], MaterialFile->FileSize(), 1);
nuclear@0: 			BaseImporter::ConvertToUTF8(FileData);
nuclear@0: 
nuclear@0: 			FileData.push_back('\0');//terminate the string with zero, so that the ss can parse it correctly
nuclear@0: 			ss << &FileData[0];
nuclear@0: 		}
nuclear@0: 		else
nuclear@0: 		{
nuclear@0: 			DefaultLogger::get()->warn("Material " + MaterialName + " seams to be empty");
nuclear@0: 			return NULL;
nuclear@0: 		}
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	//create the material
nuclear@0: 	aiMaterial *NewMaterial=new aiMaterial();
nuclear@0: 
nuclear@0: 	aiString ts(MaterialName.c_str());
nuclear@0: 	NewMaterial->AddProperty(&ts, AI_MATKEY_NAME);
nuclear@0: 
nuclear@0: 	string Line;
nuclear@0: 	ss >> Line;
nuclear@0: //	unsigned int Level=0;//Hierarchielevels in the material file, like { } blocks into another
nuclear@0: 	while(!ss.eof())
nuclear@0: 	{
nuclear@0: 		if(Line=="material")
nuclear@0: 		{
nuclear@0: 			ss >> Line;
nuclear@0: 			if(Line==MaterialName)//Load the next material
nuclear@0: 			{
nuclear@0: 				string RestOfLine;
nuclear@0: 				getline(ss, RestOfLine);//ignore the rest of the line
nuclear@0: 				ss >> Line;
nuclear@0: 
nuclear@0: 				if(Line!="{")
nuclear@0: 				{
nuclear@0: 					DefaultLogger::get()->warn("empyt material!");
nuclear@0: 					return NULL;
nuclear@0: 				}
nuclear@0: 
nuclear@0: 				while(Line!="}")//read until the end of the material
nuclear@0: 				{
nuclear@0: 					//Proceed to the first technique
nuclear@0: 					ss >> Line;
nuclear@0: 					if(Line=="technique")
nuclear@0: 					{
nuclear@0: 						ReadTechnique(ss, NewMaterial);
nuclear@0: 					}
nuclear@0: 
nuclear@0: 					DefaultLogger::get()->info(Line);
nuclear@0: 					//read informations from a custom material:
nuclear@0: 					if(Line=="set")
nuclear@0: 					{
nuclear@0: 						ss >> Line;
nuclear@0: 						if(Line=="$specular")//todo load this values:
nuclear@0: 						{
nuclear@0: 						}
nuclear@0: 						if(Line=="$diffuse")
nuclear@0: 						{
nuclear@0: 						}
nuclear@0: 						if(Line=="$ambient")
nuclear@0: 						{
nuclear@0: 						}
nuclear@0: 						if(Line=="$colormap")
nuclear@0: 						{
nuclear@0: 							ss >> Line;
nuclear@0: 							aiString ts(Line.c_str());
nuclear@0: 							NewMaterial->AddProperty(&ts, AI_MATKEY_TEXTURE(aiTextureType_DIFFUSE, 0));
nuclear@0: 						}
nuclear@0: 						if(Line=="$normalmap")
nuclear@0: 						{
nuclear@0: 							ss >> Line;
nuclear@0: 							aiString ts(Line.c_str());
nuclear@0: 							NewMaterial->AddProperty(&ts, AI_MATKEY_TEXTURE(aiTextureType_NORMALS, 0));
nuclear@0: 						}
nuclear@0: 						
nuclear@0: 						if(Line=="$shininess_strength")
nuclear@0: 						{
nuclear@0: 							ss >> Line;
nuclear@0: 							float Shininess=fast_atof(Line.c_str());
nuclear@0: 							NewMaterial->AddProperty(&Shininess, 1, AI_MATKEY_SHININESS_STRENGTH);
nuclear@0: 						}
nuclear@0: 
nuclear@0: 						if(Line=="$shininess_exponent")
nuclear@0: 						{
nuclear@0: 							ss >> Line;
nuclear@0: 							float Shininess=fast_atof(Line.c_str());
nuclear@0: 							NewMaterial->AddProperty(&Shininess, 1, AI_MATKEY_SHININESS);
nuclear@0: 						}
nuclear@0: 
nuclear@0: 						//Properties from Venetica:
nuclear@0: 						if(Line=="$diffuse_map")
nuclear@0: 						{
nuclear@0: 							ss >> Line;
nuclear@0: 							if(Line[0]=='"')// "file" -> file
nuclear@0: 								Line=Line.substr(1, Line.size()-2);
nuclear@0: 							aiString ts(Line.c_str());
nuclear@0: 							NewMaterial->AddProperty(&ts, AI_MATKEY_TEXTURE(aiTextureType_DIFFUSE, 0));
nuclear@0: 						}
nuclear@0: 						if(Line=="$specular_map")
nuclear@0: 						{
nuclear@0: 							ss >> Line;
nuclear@0: 							if(Line[0]=='"')// "file" -> file
nuclear@0: 								Line=Line.substr(1, Line.size()-2);
nuclear@0: 							aiString ts(Line.c_str());
nuclear@0: 							NewMaterial->AddProperty(&ts, AI_MATKEY_TEXTURE(aiTextureType_SHININESS, 0));
nuclear@0: 						}
nuclear@0: 						if(Line=="$normal_map")
nuclear@0: 						{
nuclear@0: 							ss >> Line;
nuclear@0: 							if(Line[0]=='"')// "file" -> file
nuclear@0: 								Line=Line.substr(1, Line.size()-2);
nuclear@0: 							aiString ts(Line.c_str());
nuclear@0: 							NewMaterial->AddProperty(&ts, AI_MATKEY_TEXTURE(aiTextureType_NORMALS, 0));
nuclear@0: 						}
nuclear@0: 						if(Line=="$light_map")
nuclear@0: 						{
nuclear@0: 							ss >> Line;
nuclear@0: 							if(Line[0]=='"')// "file" -> file
nuclear@0: 								Line=Line.substr(1, Line.size()-2);
nuclear@0: 							aiString ts(Line.c_str());
nuclear@0: 							NewMaterial->AddProperty(&ts, AI_MATKEY_TEXTURE(aiTextureType_LIGHTMAP, 0));
nuclear@0: 						}
nuclear@0: 					}					
nuclear@0: 				}//end of material
nuclear@0: 			}
nuclear@0: 			else {} //this is the wrong material, proceed the file until we reach the next material
nuclear@0: 		}
nuclear@0: 		ss >> Line;
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	return NewMaterial;
nuclear@0: }
nuclear@0: 
nuclear@0: void OgreImporter::ReadTechnique(stringstream &ss, aiMaterial* NewMaterial) const
nuclear@0: {
nuclear@0: 	unsigned int CurrentDiffuseTextureId=0;
nuclear@0: 	unsigned int CurrentSpecularTextureId=0;
nuclear@0: 	unsigned int CurrentNormalTextureId=0;
nuclear@0: 	unsigned int CurrentLightTextureId=0;
nuclear@0: 
nuclear@0: 
nuclear@0: 	string RestOfLine;
nuclear@0: 	getline(ss, RestOfLine);//ignore the rest of the line
nuclear@0: 
nuclear@0: 	string Line;
nuclear@0: 	ss >> Line;
nuclear@0: 	if(Line!="{")
nuclear@0: 	{
nuclear@0: 		DefaultLogger::get()->warn("empty technique!");
nuclear@0: 		return;
nuclear@0: 	}
nuclear@0: 	while(Line!="}")//read until the end of the technique
nuclear@0: 	{
nuclear@0: 		ss >> Line;
nuclear@0: 		if(Line=="pass")
nuclear@0: 		{
nuclear@0: 			getline(ss, RestOfLine);//ignore the rest of the line
nuclear@0: 
nuclear@0: 			ss >> Line;
nuclear@0: 			if(Line!="{")
nuclear@0: 			{
nuclear@0: 				DefaultLogger::get()->warn("empty pass!");
nuclear@0: 				return;
nuclear@0: 			}
nuclear@0: 			while(Line!="}")//read until the end of the pass
nuclear@0: 			{
nuclear@0: 				ss >> Line;
nuclear@0: 				if(Line=="ambient")
nuclear@0: 				{
nuclear@0: 					float r,g,b;
nuclear@0: 					ss >> r >> g >> b;
nuclear@0: 					const aiColor3D Color(r,g,b);
nuclear@0: 					NewMaterial->AddProperty(&Color, 1, AI_MATKEY_COLOR_AMBIENT);
nuclear@0: 				}
nuclear@0: 				else if(Line=="diffuse")
nuclear@0: 				{
nuclear@0: 					float r,g,b;
nuclear@0: 					ss >> r >> g >> b;
nuclear@0: 					const aiColor3D Color(r,g,b);
nuclear@0: 					NewMaterial->AddProperty(&Color, 1, AI_MATKEY_COLOR_DIFFUSE);
nuclear@0: 				}
nuclear@0: 				else if(Line=="specular")
nuclear@0: 				{
nuclear@0: 					float r,g,b;
nuclear@0: 					ss >> r >> g >> b;
nuclear@0: 					const aiColor3D Color(r,g,b);
nuclear@0: 					NewMaterial->AddProperty(&Color, 1, AI_MATKEY_COLOR_SPECULAR);
nuclear@0: 				}
nuclear@0: 				else if(Line=="emmisive")
nuclear@0: 				{
nuclear@0: 					float r,g,b;
nuclear@0: 					ss >> r >> g >> b;
nuclear@0: 					const aiColor3D Color(r,g,b);
nuclear@0: 					NewMaterial->AddProperty(&Color, 1, AI_MATKEY_COLOR_EMISSIVE);
nuclear@0: 				}
nuclear@0: 				else if(Line=="texture_unit")
nuclear@0: 				{
nuclear@0: 					getline(ss, RestOfLine);//ignore the rest of the line
nuclear@0: 
nuclear@0: 					std::string TextureName;
nuclear@0: 					int TextureType=-1;
nuclear@0: 					int UvSet=0;
nuclear@0: 
nuclear@0: 					ss >> Line;
nuclear@0: 					if(Line!="{")
nuclear@0: 						throw DeadlyImportError("empty texture unit!");
nuclear@0: 					while(Line!="}")//read until the end of the texture_unit
nuclear@0: 					{
nuclear@0: 						ss >> Line;
nuclear@0: 						if(Line=="texture")
nuclear@0: 						{
nuclear@0: 							ss >> Line;
nuclear@0: 							TextureName=Line;
nuclear@0: 
nuclear@0: 							if(m_TextureTypeFromFilename)
nuclear@0: 							{
nuclear@0: 								if(Line.find("_n.")!=string::npos)// Normalmap
nuclear@0: 								{
nuclear@0: 									TextureType=aiTextureType_NORMALS;
nuclear@0: 								}
nuclear@0: 								else if(Line.find("_s.")!=string::npos)// Specularmap
nuclear@0: 								{
nuclear@0: 									TextureType=aiTextureType_SPECULAR;
nuclear@0: 								}
nuclear@0: 								else if(Line.find("_l.")!=string::npos)// Lightmap
nuclear@0: 								{
nuclear@0: 									TextureType=aiTextureType_LIGHTMAP;
nuclear@0: 								}
nuclear@0: 								else// colormap
nuclear@0: 								{
nuclear@0: 									TextureType=aiTextureType_DIFFUSE;
nuclear@0: 								}
nuclear@0: 							}
nuclear@0: 							else
nuclear@0: 							{
nuclear@0: 								TextureType=aiTextureType_DIFFUSE;
nuclear@0: 							}
nuclear@0: 						}
nuclear@0: 						else if(Line=="tex_coord_set")
nuclear@0: 						{
nuclear@0: 							ss >> UvSet;
nuclear@0: 						}
nuclear@0: 						else if(Line=="colour_op")//TODO implement this
nuclear@0: 						{
nuclear@0: 							/*
nuclear@0: 							ss >> Line;
nuclear@0: 							if("replace"==Line)//I don't think, assimp has something for this...
nuclear@0: 							{
nuclear@0: 							}
nuclear@0: 							else if("modulate"==Line)
nuclear@0: 							{
nuclear@0: 								//TODO: set value
nuclear@0: 								//NewMaterial->AddProperty(aiTextureOp_Multiply)
nuclear@0: 							}
nuclear@0: 							*/
nuclear@0: 						}
nuclear@0: 						
nuclear@0: 					}//end of texture unit
nuclear@0: 					Line="";//clear the } that would end the outer loop
nuclear@0: 
nuclear@0: 					//give the texture to assimp:
nuclear@0: 					
nuclear@0: 					aiString ts(TextureName.c_str());
nuclear@0: 					switch(TextureType)
nuclear@0: 					{
nuclear@0: 					case aiTextureType_DIFFUSE:
nuclear@0: 						NewMaterial->AddProperty(&ts, AI_MATKEY_TEXTURE(aiTextureType_DIFFUSE, CurrentDiffuseTextureId));
nuclear@0: 						NewMaterial->AddProperty(&UvSet, 1, AI_MATKEY_UVWSRC(0, CurrentDiffuseTextureId));
nuclear@0: 						CurrentDiffuseTextureId++;
nuclear@0: 						break;
nuclear@0: 					case aiTextureType_NORMALS:
nuclear@0: 						NewMaterial->AddProperty(&ts, AI_MATKEY_TEXTURE(aiTextureType_NORMALS, CurrentNormalTextureId));
nuclear@0: 						NewMaterial->AddProperty(&UvSet, 1, AI_MATKEY_UVWSRC(0, CurrentNormalTextureId));
nuclear@0: 						CurrentNormalTextureId++;
nuclear@0: 						break;
nuclear@0: 					case aiTextureType_SPECULAR:
nuclear@0: 						NewMaterial->AddProperty(&ts, AI_MATKEY_TEXTURE(aiTextureType_SPECULAR, CurrentSpecularTextureId));
nuclear@0: 						NewMaterial->AddProperty(&UvSet, 1, AI_MATKEY_UVWSRC(0, CurrentSpecularTextureId));
nuclear@0: 						CurrentSpecularTextureId++;
nuclear@0: 						break;
nuclear@0: 					case aiTextureType_LIGHTMAP:
nuclear@0: 						NewMaterial->AddProperty(&ts, AI_MATKEY_TEXTURE(aiTextureType_LIGHTMAP, CurrentLightTextureId));
nuclear@0: 						NewMaterial->AddProperty(&UvSet, 1, AI_MATKEY_UVWSRC(0, CurrentLightTextureId));
nuclear@0: 						CurrentLightTextureId++;
nuclear@0: 						break;
nuclear@0: 					default:
nuclear@0: 						DefaultLogger::get()->warn("Invalid Texture Type!");
nuclear@0: 						break;
nuclear@0: 					}
nuclear@0: 				}
nuclear@0: 			}
nuclear@0: 			Line="";//clear the } that would end the outer loop
nuclear@0: 		}
nuclear@0: 	}//end of technique
nuclear@0: }
nuclear@0: 
nuclear@0: 
nuclear@0: }//namespace Ogre
nuclear@0: }//namespace Assimp
nuclear@0: 
nuclear@0: #endif  // !! ASSIMP_BUILD_NO_OGRE_IMPORTER