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| #include "PremiereApplication.h"
#include "InputListener.h"
void PremierApplication::createScene()
{
Ogre::MaterialManager::getSingleton().setDefaultTextureFiltering(Ogre::TFO_ANISOTROPIC);
Ogre::MaterialManager::getSingleton().setDefaultAnisotropy(8);
Ogre::Vector3 lightdir(0.55f, -0.3f, 0.75f);
mLight = mSceneMgr->createLight("terrainLight");
mLight->setType(Ogre::Light::LT_DIRECTIONAL);
mLight->setDirection(lightdir);
mLight->setDiffuseColour(Ogre::ColourValue::White);
mLight->setSpecularColour(Ogre::ColourValue(0.4f, 0.4f, 0.4f));
createTerrain();
}
void PremierApplication::createCamera()
{
mCamera = mSceneMgr->createCamera("Ma camera");
mCamera->setPosition(0,500,0);
mCamera->setFarClipDistance(1000);
}
void PremierApplication::createViewports()
{
Viewport *vue = mWindow->addViewport(mCamera);
mCamera->setAspectRatio(Real(vue->getActualWidth()) / Real(vue->getActualHeight()));
vue->setBackgroundColour(ColourValue(0.0, 0.0, 1.0));
}
void PremierApplication::createFrameListener()
{
mFrameListener = new InputListener(mWindow,mCamera,mSceneMgr,true,true,false);
mRoot->addFrameListener(mFrameListener);
}
void PremierApplication::createTerrain()
{
mTerrainCreated = false;
mGlobals = OGRE_NEW Ogre::TerrainGlobalOptions();
mGlobals->setMaxPixelError(8);
mGlobals->setLightMapDirection(mLight->getDerivedDirection());
mGlobals->setCompositeMapDistance(3000);
mGlobals->setCompositeMapAmbient(mSceneMgr->getAmbientLight());
mGlobals->setCompositeMapDiffuse(mLight->getDiffuseColour());
Ogre::Terrain::ImportData& imp = mTerrainGroup->getDefaultImportSettings();
imp.terrainSize = img.getWidth();
imp.worldSize = 8000;
imp.inputScale = 600;
imp.minBatchSize = 33;
imp.maxBatchSize = 65;
imp.layerList.resize(3);
imp.layerList[0].worldSize = 100;
imp.layerList[0].textureNames.push_back("grass_green-01_diffusespecular.dds");
imp.layerList[0].textureNames.push_back("grass_green-01_normalheight.dds");
imp.layerList[1].worldSize = 30;
imp.layerList[1].textureNames.push_back("growth_weirdfungus-03_diffusespecular.dds");
imp.layerList[1].textureNames.push_back("growth_weirdfungus-03_normalheight.dds");
imp.layerList[2].worldSize = 200;
imp.layerList[2].textureNames.push_back("dirt_grayrocky_diffusespecular.dds");
imp.layerList[2].textureNames.push_back("dirt_grayrocky_normalheight.dds");
mTerrainGroup = OGRE_NEW Ogre::TerrainGroup(mSceneMgr,Ogre::Terrain::ALIGN_X_Z,img.getWidth(),8000);
mTerrainGroup->setOrigin(Ogre::Vector3::ZERO);
mTerrainGroup->setFilenameConvention(Ogre::String("Terrain"),Ogre::String("dat"));
int largeur = 2, longueur = 2;
for(int x = 0 ; x < largeur; ++x)
{
for(int y = 0 ; y < longueur ;++y)
{
definirTerrain(x,y);
}
}
mTerrainGroup->loadAllTerrains(true);
Ogre::Entity *head = mSceneMgr->createEntity("Tete","ogrehead.mesh");
SceneNode *node = mSceneMgr->getRootSceneNode()->createChildSceneNode("nodeTete",Vector3::ZERO,Quaternion::IDENTITY);
node->setPosition(0,325,0);
node->attachObject(head);
}
void PremierApplication::definirTerrain(int x, int y)
{
if(Ogre::ResourceGroupManager::getSingleton().resourceExists(mTerrainGroup->getResourceGroup(),mTerrainGroup->generateFilename(x,y)))
{
mTerrainGroup->defineTerrain(x,y);
}
else
{
Ogre::Image img;
img.load("terrain.png", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
if(x % 2 != 0)
{
img.flipAroundY();
}
if(y % 2 != 0)
{
img.flipAroundX();
}
mTerrainGroup->defineTerrain(x,y,&img);
mTerrainCreated = true;
if(mTerrainCreated)
mTerrainGroup->loadAllTerrains(true);
}
Ogre::TerrainGroup::TerrainIterator ti = mTerrainGroup->getTerrainIterator();
while(ti.hasMoreElements())
{
Ogre::Terrain* t = ti.getNext()->instance;
initBlendMaps(t);
}
}
void PremierApplication::initBlendMaps(Ogre::Terrain *terrain)
{
Ogre::TerrainLayerBlendMap* blendMap1 = terrain->getLayerBlendMap(1);
Ogre::TerrainLayerBlendMap* blendMap2 = terrain->getLayerBlendMap(2);
float* pBlend1 = blendMap1->getBlendPointer();
float* pBlend2 = blendMap2->getBlendPointer();
Ogre::Real minHeight1 = 70;
Ogre::Real fadeDist1 = 40;
Ogre::Real minHeight2 = 70;
Ogre::Real fadeDist2 = 15;
for (Ogre::uint16 y = 0; y < terrain->getLayerBlendMapSize(); ++y)
{
for (Ogre::uint16 x = 0; x < terrain->getLayerBlendMapSize(); ++x)
{
Ogre::Real terrainX,terrainY,transparence;
blendMap1->convertImageToTerrainSpace(x,y,&terrainX,&terrainY);
Ogre::Real height = terrain->getHeightAtTerrainPosition(terrainX,terrainY);
transparence = (height - minHeight1 ) / fadeDist1;
transparence = Ogre::Math::Clamp(transparence,(Ogre::Real) 0,(Ogre::Real) 1);
*pBlend1 ++ = transparence *255;
transparence = (height - minHeight2) / fadeDist2;
transparence = Ogre::Math::Clamp(transparence,(Ogre::Real)0,(Ogre::Real) 1);
*pBlend2 ++ = transparence *255;
}
}
blendMap1->dirty();
blendMap1->update();
blendMap2->dirty();
blendMap2->update();
mTerrainGroup->freeTemporaryResources();
}
PremierApplication::~PremierApplication()
{
delete mFrameListener;
delete mLight;
OGRE_DELETE mGlobals;
OGRE_DELETE mTerrainGroup;
} |
Génération groupe de terrain
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