1 | /* |
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2 | orxonox - the future of 3D-vertical-scrollers |
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3 | |
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4 | Copyright (C) 2004 orx |
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5 | |
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6 | This program is free software; you can redistribute it and/or modify |
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7 | it under the terms of the GNU General Public License as published by |
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8 | the Free Software Foundation; either version 2, or (at your option) |
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9 | any later version. |
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10 | |
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11 | ### File Specific: |
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12 | main-programmer: Benjamin Grauer |
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13 | co-programmer: ... |
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14 | */ |
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15 | |
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16 | #define DEBUG_SPECIAL_MODULE DEBUG_MODULE_IMPORTER |
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17 | |
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18 | #include "objModel.h" |
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19 | |
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20 | #include <string.h> |
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21 | |
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22 | #define PARSELINELENGTH 8192 |
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23 | |
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24 | #include "debug.h" |
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25 | #include "compiler.h" |
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26 | |
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27 | ObjectListDefinition(OBJModel); |
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28 | /** |
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29 | * @brief Crates a 3D-Model, loads in a File and scales it. |
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30 | * @param fileName file to parse and load (must be a .obj file) |
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31 | * @param scaling The factor that the model will be scaled with. |
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32 | */ |
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33 | OBJModel::OBJModel(const std::string& fileName, float scaling) |
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34 | : StaticModel(fileName) |
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35 | { |
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36 | this->registerObject(this, OBJModel::_objectList); |
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37 | |
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38 | this->objPath = "./"; |
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39 | |
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40 | this->setScaleFactor(scaling); |
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41 | |
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42 | this->importFile (fileName); |
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43 | |
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44 | this->finalize(); |
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45 | } |
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46 | |
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47 | /** |
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48 | * @brief deletes an OBJModel. |
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49 | */ |
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50 | OBJModel::~OBJModel() |
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51 | { } |
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52 | |
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53 | /** |
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54 | * Imports a obj file and handles the the relative location |
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55 | * @param fileName The file to import |
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56 | |
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57 | Splits the FileName from the DirectoryName |
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58 | */ |
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59 | bool OBJModel::importFile (const std::string& fileNameInput) |
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60 | { |
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61 | const char* fileName = fileNameInput.c_str(); |
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62 | PRINTF(4)("preparing to read in file: %s\n", fileName); |
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63 | // splitting the |
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64 | char* split = NULL; |
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65 | |
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66 | if (!(split = strrchr(fileName, '/'))) |
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67 | split = strrchr(fileName, '\\'); // windows Case |
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68 | if (split) |
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69 | { |
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70 | int len = split - fileName+1; |
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71 | this->objPath = fileName; |
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72 | this->objPath.erase(len, this->objPath.size()); |
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73 | this->objPath[len] = '\0'; |
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74 | PRINTF(4)("Resolved file %s to Path %s.\n", fileName, this->objPath.c_str()); |
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75 | } |
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76 | else |
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77 | this->objPath = "./"; |
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78 | Material::addTexturePath(this->objPath); |
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79 | |
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80 | this->readFromObjFile (fileName); |
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81 | return true; |
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82 | } |
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83 | |
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84 | /** |
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85 | * @brief Reads in the .obj File and sets all the Values. |
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86 | * @param fileName the FileName of the Model. |
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87 | * |
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88 | * This function does read the file, parses it for the occurence of things like vertices, faces and so on, and executes the specific tasks |
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89 | */ |
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90 | bool OBJModel::readFromObjFile(const std::string& fileName) |
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91 | { |
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92 | FILE* stream; |
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93 | if( (stream = fopen (fileName.c_str(), "r")) == NULL) |
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94 | { |
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95 | PRINTF(2)("Object File Could not be Opened %s\n", fileName.c_str()); |
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96 | return false; |
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97 | } |
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98 | |
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99 | char buffer[PARSELINELENGTH]; |
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100 | while(fgets(buffer, PARSELINELENGTH, stream)) |
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101 | { |
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102 | // line termiated with \0 not \n |
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103 | if (buffer[strlen(buffer)-1] == '\n') |
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104 | buffer[strlen(buffer)-1] = '\0'; |
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105 | |
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106 | // case vertice |
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107 | if (!strncmp(buffer, "v ", 2)) |
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108 | { |
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109 | this->addVertex(buffer+2); |
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110 | } |
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111 | |
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112 | // case face |
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113 | else if (!strncmp(buffer, "f ", 2)) |
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114 | { |
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115 | this->addFace (buffer+2); |
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116 | } |
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117 | |
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118 | else if (!strncmp(buffer, "mtllib ", 7)) |
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119 | { |
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120 | this->readMtlLib (buffer+7); |
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121 | } |
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122 | |
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123 | else if (!strncmp(buffer, "usemtl ", 7)) |
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124 | { |
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125 | this->setMaterial (buffer+7); |
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126 | } |
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127 | |
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128 | // case VertexNormal |
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129 | else if (!strncmp(buffer, "vn ", 3)) |
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130 | { |
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131 | this->addVertexNormal(buffer+3); |
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132 | } |
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133 | |
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134 | // case VertexTextureCoordinate |
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135 | else if (!strncmp(buffer, "vt ", 3)) |
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136 | { |
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137 | this->addVertexTexture(buffer+3); |
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138 | } |
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139 | // case group |
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140 | else if (!strncmp(buffer, "g ", 2)) |
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141 | { |
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142 | this->addGroup (buffer+2); |
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143 | } |
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144 | else if (!strncmp(buffer, "s ", 2)) //! @todo smoothing groups have to be implemented |
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145 | { |
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146 | PRINTF(3)("smoothing groups not supportet yet. line: %s\n", buffer); |
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147 | } |
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148 | } |
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149 | fclose (stream); |
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150 | return true; |
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151 | } |
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152 | |
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153 | /** |
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154 | * @brief Function to read in a mtl File. |
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155 | * @param mtlFile The .mtl file to read |
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156 | * |
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157 | * This Function parses all Lines of an mtl File. |
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158 | * The reason for it not to be in the materials-class is, |
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159 | * that a material does not have to be able to read itself in from a File. |
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160 | */ |
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161 | bool OBJModel::readMtlLib (const std::string& mtlFile) |
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162 | { |
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163 | std::string fileName = this->objPath + mtlFile; |
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164 | |
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165 | FILE* stream; |
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166 | if( (stream = fopen (fileName.c_str(), "r")) == NULL) |
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167 | { |
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168 | PRINTF(2)("MaterialLibrary could not be opened %s\n", fileName.c_str()); |
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169 | return false; |
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170 | } |
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171 | |
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172 | char buffer[PARSELINELENGTH]; |
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173 | Material* tmpMat = NULL; |
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174 | |
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175 | while(fgets(buffer, PARSELINELENGTH, stream) != NULL) |
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176 | { |
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177 | PRINTF(5)("found line in mtlFile: %s\n", buffer); |
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178 | |
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179 | // line termiated with \0 not \n |
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180 | if (buffer[strlen(buffer)-1] == '\n') |
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181 | buffer[strlen(buffer)-1] = '\0'; |
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182 | |
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183 | // create new Material |
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184 | if (!strncmp(buffer, "newmtl ", 7)) |
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185 | { |
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186 | tmpMat = this->addMaterial(buffer+7);//tmpMat->addMaterial(buffer+7); |
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187 | } |
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188 | // setting a illumMode |
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189 | else if (!strncmp(buffer, "illum ", 6)) |
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190 | { |
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191 | if (likely(tmpMat != NULL)) |
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192 | setIllum(tmpMat, buffer+6); |
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193 | |
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194 | } |
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195 | // setting Diffuse Color |
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196 | else if (!strncmp(buffer, "Kd ", 3)) |
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197 | { |
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198 | if (likely(tmpMat != NULL)) |
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199 | setDiffuse(tmpMat, buffer+3); |
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200 | } |
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201 | // setting Ambient Color |
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202 | else if (!strncmp(buffer, "Ka ", 3)) |
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203 | { |
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204 | if (likely(tmpMat != NULL)) |
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205 | setAmbient(tmpMat, buffer+3); |
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206 | } |
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207 | // setting Specular Color |
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208 | else if (!strncmp(buffer, "Ks ", 3)) |
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209 | { |
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210 | if (likely(tmpMat != NULL)) |
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211 | setSpecular(tmpMat, buffer+3); |
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212 | } |
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213 | // setting The Specular Shininess |
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214 | else if (!strncmp(buffer, "Ns ", 3)) |
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215 | { |
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216 | if (likely(tmpMat != NULL)) |
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217 | setShininess(tmpMat, buffer+3); |
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218 | } |
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219 | // setting up transparency |
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220 | else if (!strncmp(buffer, "d ", 2)) |
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221 | { |
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222 | if (likely(tmpMat != NULL)) |
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223 | setTransparency(tmpMat, buffer+2); |
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224 | } |
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225 | else if (!strncmp(buffer, "Tf ", 3)) |
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226 | { |
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227 | if (likely(tmpMat != NULL)) |
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228 | setTransparency(tmpMat, buffer+3); |
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229 | } |
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230 | |
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231 | else if (!strncmp(buffer, "map_Kd ", 7)) |
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232 | { |
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233 | if (likely(tmpMat != NULL)) |
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234 | tmpMat->setDiffuseMap(buffer+7); |
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235 | } |
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236 | else if (!strncmp(buffer, "map_Ka ", 7)) |
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237 | { |
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238 | if (likely(tmpMat != NULL)) |
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239 | tmpMat->setAmbientMap(buffer+7); |
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240 | } |
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241 | else if (!strncmp(buffer, "map_Ks ", 7)) |
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242 | { |
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243 | if (likely(tmpMat != NULL)) |
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244 | tmpMat->setSpecularMap(buffer+7); |
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245 | } |
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246 | else if (!strncmp(buffer, "bump ", 5)) |
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247 | { |
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248 | if (likely(tmpMat != NULL)) |
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249 | tmpMat->setBump(buffer+7); |
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250 | } |
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251 | |
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252 | |
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253 | } |
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254 | fclose(stream); |
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255 | return true; |
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256 | } |
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257 | |
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258 | |
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259 | /** |
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260 | * @brief Sets the Material Illumination Model. |
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261 | * @param material: the Material to apply the change to. |
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262 | * @param illu: illumination Model in char* form |
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263 | */ |
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264 | void OBJModel::setIllum (Material* material, const char* illum) |
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265 | { |
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266 | material->setIllum (atoi(illum)); |
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267 | } |
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268 | |
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269 | /** |
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270 | * @brief Sets the Material Diffuse Color. |
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271 | * @param material: the Material to apply the change to. |
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272 | * @param rgb The red, green, blue channel in char format (with spaces between them) |
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273 | */ |
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274 | void OBJModel::setDiffuse (Material* material, const char* rgb) |
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275 | { |
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276 | float r,g,b; |
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277 | sscanf (rgb, "%f %f %f", &r, &g, &b); |
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278 | material->setDiffuse (r, g, b); |
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279 | } |
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280 | |
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281 | /** |
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282 | * @brief Sets the Material Ambient Color. |
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283 | * @param material: the Material to apply the change to. |
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284 | * @param rgb The red, green, blue channel in char format (with spaces between them) |
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285 | */ |
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286 | void OBJModel::setAmbient (Material* material, const char* rgb) |
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287 | { |
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288 | float r,g,b; |
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289 | sscanf (rgb, "%f %f %f", &r, &g, &b); |
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290 | material->setAmbient (r, g, b); |
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291 | } |
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292 | |
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293 | /** |
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294 | * @brief Sets the Material Specular Color. |
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295 | * @param material: the Material to apply the change to. |
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296 | * @param rgb The red, green, blue channel in char format (with spaces between them) |
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297 | */ |
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298 | void OBJModel::setSpecular (Material* material, const char* rgb) |
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299 | { |
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300 | float r,g,b; |
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301 | sscanf (rgb, "%f %f %f", &r, &g, &b); |
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302 | material->setSpecular (r, g, b); |
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303 | } |
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304 | |
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305 | /** |
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306 | * @brief Sets the Material Shininess. |
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307 | * @param material: the Material to apply the change to. |
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308 | * @param shini stes the Shininess from char*. |
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309 | */ |
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310 | void OBJModel::setShininess (Material* material, const char* shini) |
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311 | { |
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312 | material->setShininess (atof(shini)); |
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313 | } |
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314 | |
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315 | /** |
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316 | * @brief Sets the Material Transparency. |
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317 | * @param material: the Material to apply the change to. |
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318 | * @param trans stes the Transparency from char*. |
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319 | */ |
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320 | void OBJModel::setTransparency (Material* material, const char* trans) |
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321 | { |
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322 | material->setTransparency (atof(trans)); |
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323 | } |
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