1 | /* ==========================================================================
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2 | * (C) 2006 Universitat Jaume I
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3 | * ==========================================================================
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4 | * PROYECT: GAME TOOLS
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5 | * ==========================================================================*/
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6 | /** CONTENT:
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7 | *
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8 | *
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9 | * @file main.cpp
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10 | /** COMMENTS:
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11 | * Model must be in "media/models" folder.
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12 | * Lod file must be in "media/GT" folder.
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13 | /*===========================================================================*/
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14 | #include "ExampleApplication.h"
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15 | //#include "OgreLodStripsLibrary.h"
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16 | #include "GeoLodStripsLibrary.h"
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17 | #include "GeoMeshLoader.h"
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18 |
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19 |
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20 | // Distance values
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21 | #define dist_min 300
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22 | #define dist_max 700
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23 |
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24 | // Model name
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25 | #define model_name "dwarf2"
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26 |
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27 |
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28 | //Global variables
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29 | Entity* entity;
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30 | Geometry::LodStripsLibrary* myStrips;
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31 | Ogre::Mesh *ogreMesh=NULL;
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32 | Geometry::GeoMeshLoader *meshloader=NULL;
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33 | SceneNode* node;
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34 |
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35 | MaterialPtr *mat;
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36 |
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37 | ColourValue color=ColourValue::Red;
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38 |
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39 | Camera* theCam;
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40 | Entity* pPlaneEnt;
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41 | std::vector<Entity*> belowWaterEnts;
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42 | std::vector<Entity*> aboveWaterEnts;
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43 |
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44 | Plane reflectionPlane;
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45 |
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46 | OverlayElement* mInfo;
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47 | OverlayElement* mInfo2;
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48 |
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49 | class RefractionTextureListener : public RenderTargetListener
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50 | {
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51 | public:
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52 | void preRenderTargetUpdate(const RenderTargetEvent& evt)
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53 | {
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54 | // Hide plane and objects above the water
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55 | pPlaneEnt->setVisible(false);
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56 | std::vector<Entity*>::iterator i, iend;
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57 | iend = aboveWaterEnts.end();
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58 | for (i = aboveWaterEnts.begin(); i != iend; ++i)
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59 | {
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60 | (*i)->setVisible(false);
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61 | }
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62 |
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63 | }
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64 | void postRenderTargetUpdate(const RenderTargetEvent& evt)
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65 | {
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66 | // Show plane and objects above the water
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67 | pPlaneEnt->setVisible(true);
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68 | std::vector<Entity*>::iterator i, iend;
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69 | iend = aboveWaterEnts.end();
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70 | for (i = aboveWaterEnts.begin(); i != iend; ++i)
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71 | {
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72 | (*i)->setVisible(true);
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73 | }
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74 | }
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75 |
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76 | };
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77 | class ReflectionTextureListener : public RenderTargetListener
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78 | {
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79 | public:
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80 | void preRenderTargetUpdate(const RenderTargetEvent& evt)
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81 | {
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82 | // Hide plane and objects below the water
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83 | pPlaneEnt->setVisible(false);
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84 | std::vector<Entity*>::iterator i, iend;
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85 | iend = belowWaterEnts.end();
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86 | for (i = belowWaterEnts.begin(); i != iend; ++i)
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87 | {
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88 | (*i)->setVisible(false);
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89 | }
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90 | theCam->enableReflection(reflectionPlane);
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91 |
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92 | }
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93 | void postRenderTargetUpdate(const RenderTargetEvent& evt)
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94 | {
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95 | // Show plane and objects below the water
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96 | pPlaneEnt->setVisible(true);
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97 | std::vector<Entity*>::iterator i, iend;
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98 | iend = belowWaterEnts.end();
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99 | for (i = belowWaterEnts.begin(); i != iend; ++i)
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100 | {
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101 | (*i)->setVisible(true);
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102 | }
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103 | theCam->disableReflection();
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104 | }
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105 |
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106 | };
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107 |
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108 | void DumpDataToOgreBuffers(Ogre::Mesh *original_mesh, Geometry::LodStripsLibrary *lodStripsLib)
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109 | {
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110 | // Copy to Ogre buffers including the degenerated triangles
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111 |
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112 | Ogre::HardwareIndexBufferSharedPtr ibuf;
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113 | Ogre::IndexData *indexes;
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114 | Ogre::RenderOperation mRenderOp;
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115 |
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116 | for (int submesh=0; submesh < original_mesh->getNumSubMeshes(); submesh++)
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117 | {
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118 | int indices_to_render = lodStripsLib->GetValidIndexCount(submesh);
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119 | int offset = lodStripsLib->GetValidOffset(submesh);
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120 |
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121 | original_mesh->getSubMesh(submesh)->_getRenderOperation(mRenderOp,0);
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122 |
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123 | ibuf = Ogre::HardwareBufferManager::getSingleton().createIndexBuffer(
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124 | Ogre::HardwareIndexBuffer::IT_32BIT, // type of index
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125 | indices_to_render, // number of indexes
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126 | Ogre::HardwareBuffer::HBU_DISCARDABLE , // usage
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127 | false); // no shadow buffer
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128 |
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129 | mRenderOp.indexData->indexBuffer = ibuf;
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130 | mRenderOp.indexData->indexStart = 0;//offset;
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131 | mRenderOp.indexData->indexCount = indices_to_render;
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132 |
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133 | unsigned long* pIdx = static_cast<unsigned long*>(ibuf->lock(Ogre::HardwareBuffer::HBL_NORMAL));
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134 |
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135 | for (int k=0; k<indices_to_render; k++)
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136 | pIdx[k] = lodStripsLib->dataRetrievalInterface->GetIndex(k+offset);
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137 |
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138 | ibuf->unlock();
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139 |
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140 | }
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141 | }
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142 |
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143 | class FresnelFrameListener : public ExampleFrameListener
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144 | {
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145 | int manage;
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146 |
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147 | public:
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148 |
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149 | FresnelFrameListener(RenderWindow* win, Camera* cam)
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150 | : ExampleFrameListener(win, cam, false, false)
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151 | {
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152 | manage=1;
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153 | }
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154 |
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155 | bool frameStarted(const FrameEvent& evt)
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156 | {
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157 | Vector3 dist;
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158 | int distance=0,inc2=0,d;
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159 | unsigned int nlod,diflods;
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160 |
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161 | // Move upto 80 units/second
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162 | Real MoveFactor = 180.0 * evt.timeSinceLastFrame;
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163 |
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164 | // Copy the current state of the input devices
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165 | mInputDevice->capture();
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166 |
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167 | // If this is the first frame, pick a speed
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168 | if (evt.timeSinceLastFrame == 0)
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169 | {
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170 | mMoveScale = 1;
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171 | mRotScale = 0.1;
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172 | }
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173 | // Otherwise scale movement units by time passed since last frame
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174 | else
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175 | {
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176 | // Move about 100 units per second,
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177 | mMoveScale = mMoveSpeed * evt.timeSinceLastFrame;
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178 | // Take about 10 seconds for full rotation
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179 | mRotScale = mRotateSpeed * evt.timeSinceLastFrame;
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180 | }
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181 |
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182 | mRotX = 0;
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183 | mRotY = 0;
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184 | mTranslateVector = Vector3::ZERO;
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185 |
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186 | //LOD selection
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187 | int difdist = dist_max - dist_min;
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188 |
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189 | int i=0;
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190 |
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191 | dist = node->getPosition() - mCamera->getPosition();
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192 | distance =dist.length();
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193 |
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194 | DumpDataToOgreBuffers(ogreMesh,myStrips);
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195 |
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196 | float lodfactor = (float)(distance - dist_min) / (float)(dist_max - dist_min);
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197 | lodfactor = 1.0f - lodfactor;
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198 |
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199 | if (lodfactor >= 0.0f && lodfactor <= 1.0f)
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200 | {
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201 | myStrips->GoToLod(lodfactor);
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202 |
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203 | /* diflods = 10.0f;//myStrips->MaxLod()-myStrips->MinLod();
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204 | inc2=diflods/difdist;
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205 | inc2++;
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206 |
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207 | d = distance - dist_min;
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208 |
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209 | nlod = d*inc2;*/
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210 |
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211 | // if ((nlod!=myStrips->mCurrentLod)&&(nlod>=myStrips->MinLod())&&(nlod<=myStrips->MaxLod()))
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212 | // {
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213 | if (lodfactor < 0.333f)
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214 | {
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215 | color.r=0.0;
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216 | color.g=(lodfactor)*3.0f;//nlod*1.0/(diflods/3);
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217 | color.b=(1.0-lodfactor)*3.0f;//(nlod*1.0/(diflods/3));
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218 | }
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219 | else
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220 | {
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221 | if (lodfactor<0.666f)
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222 | {
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223 | color.r=(lodfactor-0.333f)*3.0f;//(nlod-diflods/3)*1.0/(diflods/3);
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224 | color.g=1.0;
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225 | color.b=0.0;
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226 | }
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227 | else
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228 | {
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229 | color.r=1.0;
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230 | color.g=(1.0-lodfactor)*3.0f;//(nlod-(2*diflods/3))*1.0/(diflods/3);
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231 | color.b=0.0;
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232 | }
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233 | }
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234 | mat[0]->setDiffuse(color);
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235 | // }
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236 | }
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237 | else
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238 | {
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239 | if ((distance > dist_max))
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240 | {
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241 | // myStrips->GoToLod(1.0f);
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242 |
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243 | color.r=0.0;
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244 | color.g=0.0;
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245 | color.b=1.0;
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246 | mat[0]->setDiffuse(color);
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247 |
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248 | }
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249 | else
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250 | {
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251 | if ((distance < dist_min))
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252 | {
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253 | // myStrips->GoToLod(0.0f);
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254 |
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255 | color.r=1.0;
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256 | color.g=0.0;
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257 | color.b=0.0;
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258 | mat[0]->setDiffuse(color);
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259 | }
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260 | }
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261 | }
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262 |
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263 | // Move the node
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264 | if(mInputDevice->isKeyDown(Ogre::KC_UP))
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265 | mTranslateVector.z = -mMoveScale;
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266 |
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267 |
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268 | if(mInputDevice->isKeyDown(Ogre::KC_DOWN))
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269 | mTranslateVector.z = mMoveScale;
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270 |
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271 | // Instead of moving the ship left and right, rotate it using yaw()
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272 | if(mInputDevice->isKeyDown(Ogre::KC_LEFT))
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273 | mCamera->yaw(mRotScale);
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274 |
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275 | if(mInputDevice->isKeyDown(Ogre::KC_RIGHT))
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276 | mCamera->yaw(-mRotScale);
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277 |
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278 | // Move the node
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279 | if(mInputDevice->isKeyDown(Ogre::KC_W))
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280 | node->translate(0,mMoveScale,0);
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281 |
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282 | if(mInputDevice->isKeyDown(Ogre::KC_S))
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283 | node->translate(0,-mMoveScale,0);
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284 |
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285 | if(mInputDevice->isKeyDown(Ogre::KC_Z))
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286 | node->scale(1.01,1.01,1.01);
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287 |
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288 | if(mInputDevice->isKeyDown(Ogre::KC_X))
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289 | node->scale(0.99,0.99,0.99);
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290 |
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291 | // Rotate
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292 | if(mInputDevice->isKeyDown(Ogre::KC_A))
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293 | node->yaw(mRotScale);
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294 |
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295 | if(mInputDevice->isKeyDown(Ogre::KC_D))
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296 | node->yaw(-mRotScale);
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297 |
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298 | if(mInputDevice->isKeyDown(Ogre::KC_ESCAPE))
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299 | {
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300 | delete myStrips;
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301 |
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302 | delete [] mat;
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303 |
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304 | return false;
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305 | }
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306 |
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307 | if( mInputDevice->getMouseButton( 1 ) )
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308 | {
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309 | mTranslateVector.x += mInputDevice->getMouseRelativeX() * 0.13;
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310 | mTranslateVector.y -= mInputDevice->getMouseRelativeY() * 0.13;
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311 | }
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312 | else
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313 | {
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314 | mRotX = Degree(-mInputDevice->getMouseRelativeX() * 0.13);
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315 | mRotY = Degree(-mInputDevice->getMouseRelativeY() * 0.13);
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316 | }
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317 |
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318 |
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319 | char cadena[256];
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320 |
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321 |
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322 | sprintf(cadena,"Distance: %d",distance);
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323 |
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324 | mInfo->setCaption(cadena);
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325 |
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326 | if (lodfactor<0.0f)
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327 | lodfactor=0.0f;
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328 | if (lodfactor>1.0f)
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329 | lodfactor=1.0f;
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330 | sprintf(cadena,"LOD factor: %f",lodfactor);
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331 |
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332 | mInfo2->setCaption(cadena);
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333 |
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334 | mCamera->yaw(mRotX);
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335 | mCamera->pitch(mRotY);
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336 | mCamera->moveRelative(mTranslateVector);
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337 |
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338 | return true;
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339 | }
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340 | };
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341 |
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342 | class FresnelApplication : public ExampleApplication
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343 | {
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344 | protected:
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345 | RefractionTextureListener mRefractionListener;
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346 | ReflectionTextureListener mReflectionListener;
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347 | public:
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348 | FresnelApplication() {
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349 |
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350 |
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351 | }
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352 |
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353 | ~FresnelApplication()
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354 | {
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355 | }
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356 | protected:
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357 |
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358 |
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359 |
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360 | // Just override the mandatory create scene method
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361 | void createScene(void)
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362 | {
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363 | Entity* pEnt;
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364 |
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365 | mat = new MaterialPtr[1];
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366 |
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367 | // Check prerequisites first
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368 | const RenderSystemCapabilities* caps = Root::getSingleton().getRenderSystem()->getCapabilities();
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369 | if (!caps->hasCapability(RSC_VERTEX_PROGRAM) || !(caps->hasCapability(RSC_FRAGMENT_PROGRAM)))
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370 | {
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371 | OGRE_EXCEPT(1, "Your card does not support vertex and fragment programs, so cannot "
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372 | "run this demo. Sorry!",
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373 | "Fresnel::createScene");
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374 | }
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375 | else
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376 | {
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377 | if (!GpuProgramManager::getSingleton().isSyntaxSupported("arbfp1") &&
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378 | !GpuProgramManager::getSingleton().isSyntaxSupported("ps_2_0") &&
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379 | !GpuProgramManager::getSingleton().isSyntaxSupported("ps_1_4")
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380 | )
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381 | {
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382 | OGRE_EXCEPT(1, "Your card does not support advanced fragment programs, "
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383 | "so cannot run this demo. Sorry!",
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384 | "Fresnel::createScene");
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385 | }
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386 | }
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387 |
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388 | theCam = mCamera;
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389 | theCam->setPosition(0,20,dist_max+50);
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390 | // Set ambient light
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391 | mSceneMgr->setAmbientLight(ColourValue(0.3, 0.3, 0.3));
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392 |
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393 | // Create a point light
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394 | Light* l = mSceneMgr->createLight("MainLight");
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395 | l->setType(Light::LT_DIRECTIONAL);
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396 | l->setDirection(0.0,0.0,-1.0);
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397 |
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398 |
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399 | RenderTexture* rttTex = mRoot->getRenderSystem()->createRenderTexture( "Refraction", 512, 512 );
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400 |
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401 | {
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402 | Viewport *v = rttTex->addViewport( mCamera );
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403 | MaterialPtr mat = MaterialManager::getSingleton().getByName("Examples/FresnelReflectionRefraction");
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404 | mat->getTechnique(0)->getPass(0)->getTextureUnitState(2)->setTextureName("Refraction");
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405 | v->setOverlaysEnabled(false);
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406 | rttTex->addListener(&mRefractionListener);
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407 | }
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408 |
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409 |
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410 | rttTex = mRoot->getRenderSystem()->createRenderTexture( "Reflection", 512, 512 );
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411 | {
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412 | Viewport *v = rttTex->addViewport( mCamera );
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413 | MaterialPtr mat = MaterialManager::getSingleton().getByName("Examples/FresnelReflectionRefraction");
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414 | mat->getTechnique(0)->getPass(0)->getTextureUnitState(1)->setTextureName("Reflection");
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415 | v->setOverlaysEnabled(false);
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416 | rttTex->addListener(&mReflectionListener);
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417 | }
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418 |
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419 |
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420 | // Define a floor plane mesh
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421 | reflectionPlane.normal = Vector3::UNIT_Y;
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422 | reflectionPlane.d = 0;
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423 | MeshManager::getSingleton().createPlane("ReflectPlane",
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424 | ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
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425 | reflectionPlane,
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426 | 9000,9000,10,10,true,1,5,5,Vector3::UNIT_Z);
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427 | pPlaneEnt = mSceneMgr->createEntity( "plane", "ReflectPlane" );
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428 | pPlaneEnt->setMaterialName("Examples/FresnelReflectionRefraction");
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429 | mSceneMgr->getRootSceneNode()->createChildSceneNode()->attachObject(pPlaneEnt);
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430 |
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431 |
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432 | mSceneMgr->setSkyBox(true, "Examples/CloudyNoonSkyBox");
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433 |
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434 | // My node to which all objects will be attached
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435 | SceneNode* myRootNode = mSceneMgr->getRootSceneNode()->createChildSceneNode();
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436 |
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437 |
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438 | // Now the below water ents
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439 | pEnt = mSceneMgr->createEntity( "PoolFloor", "PoolFloor.mesh" );
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440 | myRootNode->attachObject(pEnt);
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441 | belowWaterEnts.push_back(pEnt);
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442 | myRootNode->scale(6.0,6.0,6.0);
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443 |
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444 | std::string model_file=model_name;
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445 | model_file.append(".mesh");
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446 |
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447 | //Models
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448 | entity = mSceneMgr->createEntity(model_name, "../../../OgreStuff/media/GT/dwarflod.mesh");
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449 |
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450 | ogreMesh = entity->getMesh().getPointer();
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451 |
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452 | // load LOD info from the object
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453 | meshloader=new Geometry::GeoMeshLoader;
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454 | Geometry::Mesh *themesh = meshloader->load("../../../OgreStuff/media/GT/dwarflod.mesh");
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455 |
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456 | node = mSceneMgr->getRootSceneNode()->createChildSceneNode();
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457 | node->attachObject( entity );
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458 |
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459 | std::string lod_file="../../media/GT/";
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460 | lod_file.append(model_name);
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461 | lod_file.append(".lod");
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462 |
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463 | // myStrips = new LodStripsLibrary(lod_file,entity->getMesh().getPointer());
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464 |
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465 | if (!meshloader->GetLodStripsData())
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466 | exit(1);
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467 |
|
---|
468 | myStrips = new Geometry::LodStripsLibrary(meshloader->GetLodStripsData(),themesh);
|
---|
469 |
|
---|
470 | entity->setNormaliseNormals(true);
|
---|
471 |
|
---|
472 | aboveWaterEnts.push_back(entity);
|
---|
473 |
|
---|
474 | // Colour-coded material
|
---|
475 | mat[0] = MaterialManager::getSingleton().create("test_mat",
|
---|
476 | ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
|
---|
477 | mat[0]->setCullingMode(CULL_ANTICLOCKWISE);
|
---|
478 | mat[0]->setAmbient(ColourValue::Black);
|
---|
479 | mat[0]->setDiffuse(color);
|
---|
480 | mat[0]->setLightingEnabled(true);
|
---|
481 | entity->setMaterialName("test_mat");
|
---|
482 |
|
---|
483 | // show overlay
|
---|
484 | Overlay* pOver = OverlayManager::getSingleton().getByName("Demo_LodStrips/Overlay");
|
---|
485 | mInfo = OverlayManager::getSingleton().getOverlayElement("Demo_LodStrips/Info_1");
|
---|
486 | mInfo2 = OverlayManager::getSingleton().getOverlayElement("Demo_LodStrips/Info_2");
|
---|
487 | pOver->show();
|
---|
488 |
|
---|
489 | }
|
---|
490 |
|
---|
491 | void createFrameListener(void)
|
---|
492 | {
|
---|
493 | mFrameListener= new FresnelFrameListener(mWindow, mCamera);
|
---|
494 | mFrameListener->showDebugOverlay(true);
|
---|
495 | mRoot->addFrameListener(mFrameListener);
|
---|
496 | }
|
---|
497 |
|
---|
498 | };
|
---|
499 |
|
---|
500 |
|
---|
501 |
|
---|
502 | #if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
|
---|
503 | #define WIN32_LEAN_AND_MEAN
|
---|
504 | #include "windows.h"
|
---|
505 | #endif
|
---|
506 |
|
---|
507 | #ifdef __cplusplus
|
---|
508 | extern "C" {
|
---|
509 | #endif
|
---|
510 |
|
---|
511 | #if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
|
---|
512 | INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE, LPSTR strCmdLine, INT )
|
---|
513 | #else
|
---|
514 | int main(int argc, char **argv)
|
---|
515 | #endif
|
---|
516 | {
|
---|
517 | // Create application object
|
---|
518 | FresnelApplication app;
|
---|
519 |
|
---|
520 | try {
|
---|
521 | app.go();
|
---|
522 | } catch( Exception& e ) {
|
---|
523 | #if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
|
---|
524 | MessageBox( NULL, e.getFullDescription().c_str(), "An exception has occured!", MB_OK | MB_ICONERROR | MB_TASKMODAL);
|
---|
525 | #else
|
---|
526 | std::cerr << "An exception has occured: " << e.getFullDescription();
|
---|
527 | #endif
|
---|
528 | }
|
---|
529 |
|
---|
530 |
|
---|
531 | return 0;
|
---|
532 | }
|
---|
533 |
|
---|
534 | #ifdef __cplusplus
|
---|
535 | }
|
---|
536 | #endif
|
---|