Triangle Num: 32768
FPS <30
Environment: 6G-ddr3, i5-480m
Brute Force not very userful for nowadays game, due to its poor fps. I'm a novice for terrain rendering, maybe the "levels" cocould increase the fps.
How to do: Here is the principle and below is the code (yes, I use Ogre O >_< O ).
void createScene(){// load terrain mapif(myTerrain.LoadHeightMap("height.dat", TERRAIN_SIZE)){myTerrain.SetHeightScale(0.25f);}else{return;}//config the light/*Ogre::Light* light = mSceneMgr->createLight("Light1");light->setType(Ogre::Light::LT_DIRECTIONAL);light->setDirection(Ogre::Vector3(1,-1,0));*/Ogre::MaterialPtr mat = Ogre::MaterialManager::getSingleton().create("myMaterialWithNoCulling",Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);mat->setCullingMode(Ogre::CULL_NONE );mat->setSceneBlending(Ogre::SBT_ADD); Ogre::ManualObject* manual = mSceneMgr->createManualObject("MyTerrain");manual->begin("myMaterialWithNoCulling", RenderOperation::OT_TRIANGLE_LIST);float fColor;for(int iz = 0; iz < TERRAIN_SIZE - 1; ++iz){for(int ix = 0; ix < TERRAIN_SIZE - 1 ; ++ix){fColor = myTerrain.GetTrueHeightAtPoint(ix, iz);manual->position(ix, myTerrain.GetScaledHeightAtPoint(ix,iz), iz);manual->colour(fColor, fColor, fColor);fColor = myTerrain.GetTrueHeightAtPoint(ix + 1, iz);manual->position(ix + 1, myTerrain.GetScaledHeightAtPoint(ix + 1,iz), iz);manual->colour(fColor, fColor, fColor);fColor = myTerrain.GetTrueHeightAtPoint(ix, iz + 1);manual->position(ix, myTerrain.GetScaledHeightAtPoint(ix,iz + 1), iz + 1);manual->colour(fColor, fColor, fColor);fColor = myTerrain.GetTrueHeightAtPoint(ix, iz + 1);manual->position(ix, myTerrain.GetScaledHeightAtPoint(ix,iz + 1), iz + 1);manual->colour(fColor, fColor, fColor);fColor = myTerrain.GetTrueHeightAtPoint(ix + 1, iz);manual->position(ix + 1, myTerrain.GetScaledHeightAtPoint(ix + 1,iz), iz);manual->colour(fColor, fColor, fColor);fColor = myTerrain.GetTrueHeightAtPoint(ix + 1, iz + 1);manual->position(ix + 1, myTerrain.GetScaledHeightAtPoint(ix + 1,iz + 1), iz + 1);manual->colour(fColor, fColor, fColor);}}manual->end();/*manual->convertToMesh("bruteForceTerrain");Ogre::Entity* terrainMesh = mSceneMgr->createEntity("bruteForceTerrain");*/mSceneMgr->getRootSceneNode()->createChildSceneNode()->attachObject(manual);}