[1092] | 1 | /* ==========================================================================
|
---|
| 2 | * (C) 2006 Universitat Jaume I
|
---|
| 3 | * ==========================================================================
|
---|
| 4 | * PROYECT: GAME TOOLS
|
---|
| 5 | * ==========================================================================*/
|
---|
| 6 | /** CONTENT:
|
---|
| 7 | *
|
---|
| 8 | *
|
---|
| 9 | * @file main.cpp
|
---|
| 10 | /** COMMENTS:
|
---|
| 11 | * Model must be in "media/models" folder.
|
---|
| 12 | * Lod file must be in "media/GT" folder.
|
---|
| 13 | /*===========================================================================*/
|
---|
| 14 | #include "ExampleApplication.h"
|
---|
| 15 | #include "GeoLodTreeLibrary.h"
|
---|
| 16 | #include "GeoMeshLoader.h"
|
---|
| 17 |
|
---|
| 18 |
|
---|
| 19 | // Distance values
|
---|
| 20 | #define dist_min 300
|
---|
| 21 | #define dist_max 700
|
---|
| 22 |
|
---|
| 23 | // Model name
|
---|
| 24 | #define model_name "arbol"
|
---|
| 25 |
|
---|
| 26 |
|
---|
| 27 | //Global variables
|
---|
| 28 | Entity* entity;
|
---|
| 29 | Geometry::LodTreeLibrary* myTrees;
|
---|
| 30 | Ogre::Mesh *ogreMesh=NULL;
|
---|
| 31 | Geometry::GeoMeshLoader *meshloader=NULL;
|
---|
[1104] | 32 | bool force_maxLODfactor = false;
|
---|
[1092] | 33 |
|
---|
[1104] | 34 | Ogre::Vector3 forest_center;
|
---|
[1092] | 35 |
|
---|
| 36 | ColourValue color=ColourValue::Red;
|
---|
| 37 |
|
---|
| 38 | Camera* theCam;
|
---|
| 39 | Entity* pPlaneEnt;
|
---|
| 40 |
|
---|
| 41 | OverlayElement* mInfo;
|
---|
| 42 | OverlayElement* mInfo2;
|
---|
| 43 |
|
---|
| 44 |
|
---|
| 45 | void DumpDataToOgreBuffers(Ogre::Mesh *original_mesh, Geometry::LodTreeLibrary *lodTreesLib)
|
---|
| 46 | {
|
---|
| 47 | // Copy to Ogre buffers including the degenerated triangles
|
---|
| 48 |
|
---|
| 49 | Ogre::HardwareIndexBufferSharedPtr ibuf;
|
---|
| 50 | Ogre::IndexData *indexes;
|
---|
| 51 | Ogre::RenderOperation mRenderOp;
|
---|
| 52 |
|
---|
| 53 | for (int submesh=0; submesh < original_mesh->getNumSubMeshes(); submesh++)
|
---|
| 54 | {
|
---|
| 55 | bool istrunk = lodTreesLib->GetLeavesSubMesh()!=submesh;
|
---|
| 56 | original_mesh->getSubMesh(submesh)->_getRenderOperation(mRenderOp,0);
|
---|
| 57 |
|
---|
| 58 | // we will suppose this submesh is the foliage
|
---|
| 59 | int indices_to_render = lodTreesLib->CurrentLOD_Foliage_IndexCount();
|
---|
| 60 | int offset = 0;
|
---|
| 61 |
|
---|
| 62 | if (istrunk)
|
---|
| 63 | {
|
---|
| 64 | // this submesh is the trunk
|
---|
| 65 | offset = lodTreesLib->GetValidTrunkOffset(submesh);
|
---|
| 66 | indices_to_render = lodTreesLib->GetValidTrunkIndexCount(submesh);
|
---|
| 67 | }
|
---|
| 68 |
|
---|
| 69 | ibuf = Ogre::HardwareBufferManager::getSingleton().createIndexBuffer(
|
---|
| 70 | Ogre::HardwareIndexBuffer::IT_32BIT, // type of index
|
---|
| 71 | indices_to_render, // number of indexes
|
---|
| 72 | Ogre::HardwareBuffer::HBU_DISCARDABLE , // usage
|
---|
| 73 | false); // no shadow buffer
|
---|
| 74 |
|
---|
| 75 | mRenderOp.indexData->indexBuffer = ibuf;
|
---|
| 76 | mRenderOp.indexData->indexStart = 0;
|
---|
[1104] | 77 | mRenderOp.indexData->indexCount = indices_to_render;
|
---|
[1092] | 78 |
|
---|
| 79 | unsigned long* pIdx = static_cast<unsigned long*>(ibuf->lock(Ogre::HardwareBuffer::HBL_NORMAL));
|
---|
| 80 |
|
---|
| 81 | for (int k=0; k<indices_to_render; k++)
|
---|
| 82 | if (istrunk)
|
---|
| 83 | pIdx[k] = lodTreesLib->CurrentLOD_Trunk_Indices()->GetIndex(k+offset);
|
---|
| 84 | else
|
---|
| 85 | pIdx[k] = lodTreesLib->CurrentLOD_Foliage_Indices()->GetIndex(k);
|
---|
| 86 |
|
---|
| 87 |
|
---|
| 88 | ibuf->unlock();
|
---|
| 89 | }
|
---|
| 90 | }
|
---|
| 91 |
|
---|
| 92 | class FresnelFrameListener : public ExampleFrameListener
|
---|
| 93 | {
|
---|
| 94 | int manage;
|
---|
| 95 |
|
---|
| 96 | public:
|
---|
| 97 |
|
---|
| 98 | FresnelFrameListener(RenderWindow* win, Camera* cam)
|
---|
| 99 | : ExampleFrameListener(win, cam, false, false)
|
---|
| 100 | {
|
---|
| 101 | manage=1;
|
---|
| 102 | }
|
---|
| 103 |
|
---|
| 104 | bool frameStarted(const FrameEvent& evt)
|
---|
| 105 | {
|
---|
| 106 | Vector3 dist;
|
---|
| 107 | int distance=0,inc2=0,d;
|
---|
| 108 | unsigned int nlod,diflods;
|
---|
| 109 |
|
---|
| 110 | // Move upto 80 units/second
|
---|
| 111 | Real MoveFactor = 180.0 * evt.timeSinceLastFrame;
|
---|
| 112 |
|
---|
| 113 | // Copy the current state of the input devices
|
---|
| 114 | mInputDevice->capture();
|
---|
| 115 |
|
---|
| 116 | // If this is the first frame, pick a speed
|
---|
| 117 | if (evt.timeSinceLastFrame == 0)
|
---|
| 118 | {
|
---|
| 119 | mMoveScale = 1;
|
---|
| 120 | mRotScale = 0.1;
|
---|
| 121 | }
|
---|
| 122 | // Otherwise scale movement units by time passed since last frame
|
---|
| 123 | else
|
---|
| 124 | {
|
---|
| 125 | // Move about 100 units per second,
|
---|
| 126 | mMoveScale = mMoveSpeed * evt.timeSinceLastFrame;
|
---|
| 127 | // Take about 10 seconds for full rotation
|
---|
| 128 | mRotScale = mRotateSpeed * evt.timeSinceLastFrame;
|
---|
| 129 | }
|
---|
| 130 |
|
---|
| 131 | mRotX = 0;
|
---|
| 132 | mRotY = 0;
|
---|
| 133 | mTranslateVector = Vector3::ZERO;
|
---|
| 134 |
|
---|
| 135 | //LOD selection
|
---|
| 136 | int difdist = dist_max - dist_min;
|
---|
| 137 |
|
---|
| 138 | int i=0;
|
---|
| 139 |
|
---|
[1104] | 140 | dist = forest_center - mCamera->getPosition();
|
---|
[1092] | 141 | distance =dist.length();
|
---|
| 142 |
|
---|
| 143 | float lodfactor = (float)(distance - dist_min) / (float)(dist_max - dist_min);
|
---|
| 144 | lodfactor = 1.0f - lodfactor;
|
---|
| 145 |
|
---|
[1104] | 146 | if (lodfactor<0.0f)
|
---|
| 147 | lodfactor=0.0f;
|
---|
| 148 | if (lodfactor>1.0f)
|
---|
| 149 | lodfactor=1.0f;
|
---|
| 150 |
|
---|
| 151 | if (force_maxLODfactor)
|
---|
| 152 | lodfactor=1.0f;
|
---|
| 153 |
|
---|
| 154 | static float lodfactorBefore = -1.0f;
|
---|
| 155 | if (fabsf(lodfactorBefore-lodfactor)>0.05f)
|
---|
[1092] | 156 | {
|
---|
| 157 | myTrees->GoToLod(lodfactor);
|
---|
[1104] | 158 | DumpDataToOgreBuffers(ogreMesh,myTrees);
|
---|
| 159 | lodfactorBefore=lodfactor;
|
---|
[1092] | 160 | }
|
---|
| 161 |
|
---|
| 162 | // Move the node
|
---|
| 163 | if(mInputDevice->isKeyDown(Ogre::KC_UP))
|
---|
| 164 | mTranslateVector.z = -mMoveScale;
|
---|
| 165 |
|
---|
| 166 |
|
---|
| 167 | if(mInputDevice->isKeyDown(Ogre::KC_DOWN))
|
---|
| 168 | mTranslateVector.z = mMoveScale;
|
---|
| 169 |
|
---|
| 170 | // Instead of moving the ship left and right, rotate it using yaw()
|
---|
| 171 | if(mInputDevice->isKeyDown(Ogre::KC_LEFT))
|
---|
| 172 | mCamera->yaw(mRotScale);
|
---|
| 173 |
|
---|
[1104] | 174 | force_maxLODfactor=mInputDevice->isKeyDown(Ogre::KC_F2);
|
---|
| 175 |
|
---|
[1092] | 176 | if(mInputDevice->isKeyDown(Ogre::KC_RIGHT))
|
---|
| 177 | mCamera->yaw(-mRotScale);
|
---|
| 178 |
|
---|
| 179 | if(mInputDevice->isKeyDown(Ogre::KC_ESCAPE))
|
---|
| 180 | {
|
---|
[1104] | 181 | //delete myTrees;
|
---|
[1092] | 182 | return false;
|
---|
| 183 | }
|
---|
| 184 |
|
---|
| 185 | if( mInputDevice->getMouseButton( 1 ) )
|
---|
| 186 | {
|
---|
| 187 | mTranslateVector.x += mInputDevice->getMouseRelativeX() * 0.13;
|
---|
| 188 | mTranslateVector.y -= mInputDevice->getMouseRelativeY() * 0.13;
|
---|
| 189 | }
|
---|
| 190 | else
|
---|
| 191 | {
|
---|
| 192 | mRotX = Degree(-mInputDevice->getMouseRelativeX() * 0.13);
|
---|
| 193 | mRotY = Degree(-mInputDevice->getMouseRelativeY() * 0.13);
|
---|
| 194 | }
|
---|
| 195 |
|
---|
| 196 |
|
---|
| 197 | char cadena[256];
|
---|
| 198 |
|
---|
| 199 |
|
---|
| 200 | sprintf(cadena,"Distance: %d",distance);
|
---|
| 201 |
|
---|
| 202 | mInfo->setCaption(cadena);
|
---|
| 203 |
|
---|
| 204 | sprintf(cadena,"LOD factor: %f",lodfactor);
|
---|
| 205 |
|
---|
| 206 | mInfo2->setCaption(cadena);
|
---|
| 207 |
|
---|
| 208 | mCamera->yaw(mRotX);
|
---|
| 209 | mCamera->pitch(mRotY);
|
---|
| 210 | mCamera->moveRelative(mTranslateVector);
|
---|
| 211 |
|
---|
| 212 | return true;
|
---|
| 213 | }
|
---|
| 214 | };
|
---|
| 215 |
|
---|
| 216 | class FresnelApplication : public ExampleApplication
|
---|
| 217 | {
|
---|
| 218 | protected:
|
---|
| 219 | public:
|
---|
| 220 | FresnelApplication()
|
---|
| 221 | {
|
---|
| 222 | }
|
---|
| 223 |
|
---|
| 224 | ~FresnelApplication()
|
---|
| 225 | {
|
---|
| 226 | }
|
---|
| 227 | protected:
|
---|
| 228 |
|
---|
| 229 |
|
---|
| 230 |
|
---|
| 231 | // Just override the mandatory create scene method
|
---|
| 232 | void createScene(void)
|
---|
| 233 | {
|
---|
[1104] | 234 | // mat = new MaterialPtr[1];
|
---|
[1092] | 235 |
|
---|
| 236 | theCam = mCamera;
|
---|
[1124] | 237 | theCam->setPosition(0,20,dist_min-40);
|
---|
[1092] | 238 | // Set ambient light
|
---|
[1124] | 239 | mSceneMgr->setAmbientLight(ColourValue(0.4, 0.4, 0.4));
|
---|
[1092] | 240 |
|
---|
[1104] | 241 | // Create a directional light
|
---|
[1124] | 242 | Light* l = mSceneMgr->createLight("MainLight");
|
---|
[1104] | 243 | l->setType(Light::LT_DIRECTIONAL);
|
---|
[1124] | 244 | l->setDirection(0.0,-1.0,0.0);
|
---|
[1092] | 245 |
|
---|
| 246 | // Define a floor plane mesh
|
---|
| 247 | Plane plane( Vector3::UNIT_Y, 0 );
|
---|
| 248 |
|
---|
| 249 | MeshManager::getSingleton().createPlane("ground",
|
---|
| 250 | ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, plane,
|
---|
| 251 | 1500,1500,20,20,true,1,5,5,Vector3::UNIT_Z);
|
---|
| 252 |
|
---|
| 253 | Entity* suelo = mSceneMgr->createEntity( "GroundEntity", "ground" );
|
---|
| 254 | mSceneMgr->getRootSceneNode()->createChildSceneNode()->attachObject(suelo);
|
---|
| 255 |
|
---|
| 256 |
|
---|
| 257 | suelo->setMaterialName("Examples/GrassFloor");
|
---|
| 258 | suelo->setCastShadows(false);
|
---|
| 259 |
|
---|
| 260 |
|
---|
| 261 | mSceneMgr->setSkyBox(true, "Examples/CloudyNoonSkyBox");
|
---|
| 262 |
|
---|
| 263 | // My node to which all objects will be attached
|
---|
| 264 | SceneNode* myRootNode = mSceneMgr->getRootSceneNode()->createChildSceneNode();
|
---|
| 265 |
|
---|
| 266 | std::string model_file=model_name;
|
---|
| 267 | model_file.append(".mesh");
|
---|
| 268 |
|
---|
| 269 | //Models
|
---|
[1104] | 270 | entity = mSceneMgr->createEntity(model_name, "../../../OgreStuff/media/GT/ML12m.mesh");
|
---|
[1092] | 271 |
|
---|
| 272 | ogreMesh = entity->getMesh().getPointer();
|
---|
| 273 |
|
---|
| 274 | // load LOD info from the object
|
---|
| 275 | meshloader=new Geometry::GeoMeshLoader;
|
---|
[1104] | 276 | Geometry::Mesh *themesh = meshloader->load("../../../OgreStuff/media/GT/ML12m.mesh");
|
---|
[1092] | 277 |
|
---|
| 278 | myTrees = new Geometry::LodTreeLibrary(meshloader->GetLodStripsData(),meshloader->GetTreeSimpSeq(),themesh);
|
---|
| 279 |
|
---|
| 280 | entity->setNormaliseNormals(true);
|
---|
| 281 |
|
---|
[1104] | 282 | for (int submesh=0; submesh < ogreMesh->getNumSubMeshes(); submesh++)
|
---|
| 283 | {
|
---|
| 284 | bool istrunk = myTrees->GetLeavesSubMesh()!=submesh;
|
---|
| 285 | if (istrunk)
|
---|
| 286 | entity->getSubEntity(submesh)->setMaterialName("Examples/Populifolia/trunk");
|
---|
| 287 | else
|
---|
| 288 | entity->getSubEntity(submesh)->setMaterialName("Examples/Populifolia/leaf");
|
---|
| 289 | }
|
---|
[1092] | 290 |
|
---|
[1104] | 291 | forest_center=Ogre::Vector3(150.0f,0.0f,0.0f);
|
---|
| 292 | for (int i=1; i<8; i++) // 20
|
---|
| 293 | for (int j=1; j<8; j++) // 20
|
---|
| 294 | {
|
---|
| 295 | char newTreeName[16]="";
|
---|
| 296 | sprintf(newTreeName,"arbol_%d_%d",i,j);
|
---|
| 297 | Ogre::SceneNode * auxnode = mSceneMgr->getRootSceneNode()->createChildSceneNode();
|
---|
[1124] | 298 | Ogre::Entity *auxent = entity->clone(newTreeName);
|
---|
| 299 | auxnode->attachObject( auxent );
|
---|
[1104] | 300 | auxnode->scale(4.0f,4.0f,4.0f);
|
---|
[1116] | 301 | auxnode->rotate(Ogre::Vector3(0,0,1),Ogre::Degree(rand()%360));
|
---|
| 302 | auxnode->rotate(Ogre::Vector3(1,0,0),Ogre::Radian(-3.14159f*0.5f),Ogre::Node::TS_WORLD);
|
---|
[1104] | 303 | float randomsepx = (float)((rand()%18)-9);
|
---|
| 304 | float randomsepy = (float)((rand()%12)-6);
|
---|
| 305 | auxnode->translate(i*30.0f+randomsepx,0.0f,-j*30.0f-randomsepx);
|
---|
[1124] | 306 | auxent->setNormaliseNormals(true);
|
---|
[1104] | 307 | }
|
---|
[1092] | 308 |
|
---|
[1104] | 309 | if (!meshloader->GetLodStripsData() || !meshloader->GetTreeSimpSeq())
|
---|
[1113] | 310 | OGRE_EXCEPT(1, "The loaded mesh does not contain any LOD info","LOD Demo");
|
---|
[1092] | 311 |
|
---|
[1113] | 312 |
|
---|
[1092] | 313 | // show overlay
|
---|
| 314 | Overlay* pOver = OverlayManager::getSingleton().getByName("Demo_LodStrips/Overlay");
|
---|
| 315 | mInfo = OverlayManager::getSingleton().getOverlayElement("Demo_LodStrips/Info_1");
|
---|
| 316 | mInfo2 = OverlayManager::getSingleton().getOverlayElement("Demo_LodStrips/Info_2");
|
---|
| 317 | pOver->show();
|
---|
| 318 |
|
---|
| 319 | }
|
---|
| 320 |
|
---|
| 321 | void createFrameListener(void)
|
---|
| 322 | {
|
---|
| 323 | mFrameListener= new FresnelFrameListener(mWindow, mCamera);
|
---|
| 324 | mFrameListener->showDebugOverlay(true);
|
---|
| 325 | mRoot->addFrameListener(mFrameListener);
|
---|
| 326 | }
|
---|
| 327 |
|
---|
| 328 | };
|
---|
| 329 |
|
---|
| 330 |
|
---|
| 331 |
|
---|
| 332 | #if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
|
---|
| 333 | #define WIN32_LEAN_AND_MEAN
|
---|
| 334 | #include "windows.h"
|
---|
| 335 | #endif
|
---|
| 336 |
|
---|
| 337 | #ifdef __cplusplus
|
---|
| 338 | extern "C" {
|
---|
| 339 | #endif
|
---|
| 340 |
|
---|
| 341 | #if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
|
---|
| 342 | INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE, LPSTR strCmdLine, INT )
|
---|
| 343 | #else
|
---|
| 344 | int main(int argc, char **argv)
|
---|
| 345 | #endif
|
---|
| 346 | {
|
---|
| 347 | // Create application object
|
---|
| 348 | FresnelApplication app;
|
---|
| 349 |
|
---|
| 350 | try {
|
---|
| 351 | app.go();
|
---|
| 352 | } catch( Exception& e ) {
|
---|
| 353 | #if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
|
---|
| 354 | MessageBox( NULL, e.getFullDescription().c_str(), "An exception has occured!", MB_OK | MB_ICONERROR | MB_TASKMODAL);
|
---|
| 355 | #else
|
---|
| 356 | std::cerr << "An exception has occured: " << e.getFullDescription();
|
---|
| 357 | #endif
|
---|
| 358 | }
|
---|
| 359 |
|
---|
| 360 |
|
---|
| 361 | return 0;
|
---|
| 362 | }
|
---|
| 363 |
|
---|
| 364 | #ifdef __cplusplus
|
---|
| 365 | }
|
---|
| 366 | #endif
|
---|