C++ ogre::MaterialPtr类代码示例

    void UpdateLegacyMaterials(const std::string& texture_name)
    {
        Ogre::TextureManager &tm = Ogre::TextureManager::getSingleton();
        Ogre::MaterialManager &mm = Ogre::MaterialManager::getSingleton();
        
        Ogre::TexturePtr tex = tm.getByName(texture_name);
        bool has_alpha = false;
        if (!tex.isNull())
            if (Ogre::PixelUtil::hasAlpha(tex->getFormat()))
                has_alpha = true;

        for (uint i = 0; i < MAX_MATERIAL_VARIATIONS; ++i)
        {
            std::string material_name = texture_name + MaterialSuffix[i];
            Ogre::MaterialPtr material = mm.getByName(material_name);
            
            if (!material.get())
                continue;
            
            Ogre::MaterialPtr base_material;
            if (!has_alpha)
                base_material = mm.getByName(BaseMaterials[i]);
            else
                base_material = mm.getByName(AlphaBaseMaterials[i]);
            if (!base_material.get())
            {
                OgreRenderingModule::LogError("Could not find " + MaterialSuffix[i] + " base material for " + texture_name);
                continue;
            }
            
            base_material->copyDetailsTo(material);
            SetTextureUnitOnMaterial(material, texture_name, 0);
        }
    }

//---------------------------------------------------------------------------
void GaussianListener::notifyMaterialSetup(Ogre::uint32 pass_id, Ogre::MaterialPtr &mat)
{
    // Prepare the fragment params offsets
    switch(pass_id)
    {
    case 701: // blur horz
    {
        // horizontal bloom
        mat->load();
        Ogre::GpuProgramParametersSharedPtr fparams =
            mat->getBestTechnique()->getPass(0)->getFragmentProgramParameters();
        fparams->setNamedConstant("sampleOffsets", mBloomTexOffsetsHorz[0], 15);
        fparams->setNamedConstant("sampleWeights", mBloomTexWeights[0], 15);

        break;
    }
    case 700: // blur vert
    {
        // vertical bloom
        mat->load();
        Ogre::GpuProgramParametersSharedPtr fparams =
            mat->getTechnique(0)->getPass(0)->getFragmentProgramParameters();
        fparams->setNamedConstant("sampleOffsets", mBloomTexOffsetsVert[0], 15);
        fparams->setNamedConstant("sampleWeights", mBloomTexWeights[0], 15);

        break;
    }
    }
}

void RenderComponentBillboardSet::setChangeWorldFactor(double factor)
{
	Ogre::Technique * technique;
	Ogre::GpuProgramParametersSharedPtr params;
	Ogre::Pass * pass;

	Ogre::MaterialPtr material = Ogre::MaterialManager::getSingleton().getByName(mChangeWorldMaterial);

	if(material.get())
	{
		technique= material->getTechnique(0);
		if(technique)
		{
			if(technique->getNumPasses()>0)
			{
				pass=technique->getPass(0);
				if(pass->hasFragmentProgram())
				{
					params=pass->getFragmentProgramParameters();

					if(params.get())
					{
						params->setNamedConstant("mix_factor",Ogre::Real(factor));
					}
				}
			}
		}
	}
}

bool Simple::compileMaterial(Ogre::MaterialPtr material, std::set<std::string>& managedTextures) const
{
	material->removeAllTechniques();
	Ogre::Technique* technique = material->createTechnique();
	if (!mTerrainPageSurfaces.empty()) {
		//First add a base pass
		auto surfaceLayer = mTerrainPageSurfaces.begin()->second;
		Ogre::Pass* pass = technique->createPass();
		pass->setLightingEnabled(false);
		Ogre::TextureUnitState * textureUnitState = pass->createTextureUnitState();
		textureUnitState->setTextureScale(1.0f / surfaceLayer->getScale(), 1.0f / surfaceLayer->getScale());
		textureUnitState->setTextureName(surfaceLayer->getDiffuseTextureName());
		textureUnitState->setTextureCoordSet(0);

		for (auto& layer : mLayers) {
			addPassToTechnique(*mGeometry, technique, layer, managedTextures);
		}
	}
	if (mTerrainPageShadow) {
		addShadow(technique, mTerrainPageShadow, material, managedTextures);
	}

//	addLightingPass(technique, managedTextures);

	material->load();
	if (material->getNumSupportedTechniques() == 0) {
		S_LOG_WARNING("The material '" << material->getName() << "' has no supported techniques. The reason for this is: \n" << material->getUnsupportedTechniquesExplanation());
		return false;
	}
	return true;
}

void BoxChunk::addToGraph(Ogre::SceneManager* sceneMgr)
{
  // set up Ogre properties
  entity = sceneMgr->createEntity(name, "cube.mesh");

  // Create BoxChunk materials
  Ogre::MaterialPtr mat = Ogre::MaterialManager::getSingleton().create(name+"Mat",
    Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
  entity->setMaterial(mat);
  entity->setMaterial(mat);
  entity->setCastShadows(false);

  node = sceneMgr->getRootSceneNode()->createChildSceneNode(name);
  node->attachObject(entity);

  Ogre::Real cur_height = entity->getBoundingBox().getSize().y;
  node->scale(height/cur_height, height/cur_height, height/cur_height);
  node->rotate(Ogre::Quaternion(((float)(rand() % 10))/10.f, ((float)(rand() % 10))/10.f,
                                ((float)(rand() % 10))/10.f, ((float)(rand() % 10))/10.f));

  Ogre::ColourValue c(1, 0, 0, 1);
  mat->setAmbient(c);
  mat->setDiffuse(c);
  mat->setSpecular(c);
}

    void DatuPointEditAction::_createIndicatorInstance(void)
    {
        Ogre::SceneManager* sceneManager = mSceneManipulator->getSceneManager();

        mSoundMovingEntity = sceneManager->createEntity("DatuPointMovingEntity", "axes.mesh");
        mSoundNode = mSceneManipulator->getIndicatorRootSceneNode()->createChildSceneNode();

        mSoundNode->setVisible(false);

        mSoundNode->createChildSceneNode()->attachObject(mSoundMovingEntity);

        mSoundMovingEntity->getParentSceneNode()->setScale(10,10,10);

        Real radius = 1;
        int rings = 16;
        int segments = 64;

        Ogre::MeshPtr sphereMesh = WX::createCommonSphere("DatuPointRadiusEntity", radius, rings, segments);
        Ogre::MaterialPtr material = WX::createPureColourMaterial(
            Ogre::ColourValue(1, 0, 0, 0.75)   );

        material->getTechnique(0)->getPass(0)->setPolygonMode(Ogre::PM_WIREFRAME);

        mDatuPointRadiusEntity = sceneManager->createEntity("DatuPointRadiusEntity", sphereMesh->getName());
        mSoundNode->createChildSceneNode()->attachObject(mDatuPointRadiusEntity);
        mDatuPointRadiusEntity->setMaterialName(material->getName());
        mDatuPointRadiusEntity->getParentSceneNode()->setVisible(false);

        mFirstInit = true;
    }

void EC_Sky::CreateSky()
{
    if (!ViewEnabled())
        return;

    if (world_.expired())
        return;

    QString currentMaterial = materialRef.Get().ref;

    Ogre::MaterialPtr materialPtr = Ogre::MaterialManager::getSingleton().getByName(currentMaterial.toStdString().c_str());
    //Ogre::MaterialPtr materialPtr = Ogre::MaterialManager::getSingleton().getByName(framework->Asset()->LookupAssetRefToStorage(materialRef.Get().ref).toStdString().c_str());
    if (materialPtr.isNull())
    {
        LogError("Could not get SkyBox material : " + currentMaterial.toStdString());
        return;
    }

    materialPtr->setReceiveShadows(false);

    try
    {
        world_.lock()->GetSceneManager()->setSkyBox(true, currentMaterial.toStdString().c_str(), distance.Get(),
            drawFirst.Get(), orientation.Get());
    }
    catch(Ogre::Exception& e)
    {
        LogError("Could not set SkyBox: " + std::string(e.what()));
    }
}

void CubeUpdater::apply_color(Ogre::Entity* entity, float r, float g, float b)
{
    Ogre::MaterialPtr manObj = entity->getSubEntity(0)->getMaterial();
    float newR(r/255.0f), newG(g/255.0f), newB(b/255.0f);
    ColourValue oldColor(manObj->getTechnique(0)->getPass(0)->getDiffuse());

    if (oldColor.r == newR && oldColor.g == newG && oldColor.b == newB)
    {
        return;
    }

    if (!is_first_update)
    {
        cout << "New color " << newR << ", " << newG << ", " << newB << " | ";
        cout << "Old color " << oldColor.r << ", " << oldColor.g << ", " << oldColor.b << " | ";
        cout << "Diff = " << newR-oldColor.r<< endl;

        newR = scale_value(oldColor.r, newR, _config->get<double>("application.grid.adaptive_factor"), 0.01);
        newG = scale_value(oldColor.g, newG, _config->get<double>("application.grid.adaptive_factor"), 0.01);
        newB = scale_value(oldColor.b, newB, _config->get<double>("application.grid.adaptive_factor"), 0.01);

        cout << "Actual New color " << newR << ", " << newG << ", " << newB << endl;

    }

//
    manObj->getTechnique(0)->getPass(0)->setDiffuse(Ogre::ColourValue(newR, newG, newB));
    manObj->getTechnique(0)->getPass(0)->setAmbient(Ogre::ColourValue(newR/2.0f, newG/2.0f, newB/2.0f));
    //manObj->getTechnique(0)->getPass(0)->setSelfIllumination(Ogre::ColourValue(r, g, b));
}

void HDRListener::notifyMaterialRender(Ogre::uint32 pass_id, Ogre::MaterialPtr &mat)
{
	
	if(pass_id == 600 || pass_id == 800)
	{
		Ogre::Pass *pass = mat->getBestTechnique()->getPass(0);
		Ogre::GpuProgramParametersSharedPtr params = pass->getFragmentProgramParameters();
    
		if (params->_findNamedConstantDefinition("toneMapSettings"))
		{
			Ogre::Vector4 toneMapSettings(1-mApp->pSet->hdrParam1, mApp->pSet->hdrParam2, mApp->pSet->hdrParam3, 1.0);
			params->setNamedConstant("toneMapSettings", toneMapSettings);
		}
		if (params->_findNamedConstantDefinition("bloomSettings"))
		{
			Ogre::Vector4 bloomSettings(mApp->pSet->hdrbloomorig*2, mApp->pSet->hdrbloomint, 1.0, 1.0);
			params->setNamedConstant("bloomSettings", bloomSettings);
		}
		if (params->_findNamedConstantDefinition("vignettingSettings"))
		{
			Ogre::Vector4 vignettingSettings(mApp->pSet->vignettingRadius, mApp->pSet->vignettingDarkness, 1.0, 1.0);
			params->setNamedConstant("vignettingSettings", vignettingSettings);
		}
	
	}
	else if(pass_id == 989)
	{
		Ogre::Pass *pass = mat->getBestTechnique()->getPass(0);
		Ogre::GpuProgramParametersSharedPtr params = pass->getFragmentProgramParameters();
		if (params->_findNamedConstantDefinition("AdaptationScale"))
		{
			params->setNamedConstant("AdaptationScale", mApp->pSet->hdrAdaptationScale);
		}
	}
}

void EC_OgreMovableTextOverlay::SetMaterial(const std::string& new_base_material)
{
    ///\todo Make this work for other materials!
    // Clone own copy of the material for this overlay.
    Ogre::MaterialManager &mm = Ogre::MaterialManager::getSingleton();
    Ogre::MaterialPtr material = mm.getByName(new_base_material);
    if (material.get())
    {
        baseMaterialName_ = new_base_material;
        Ogre::MaterialPtr baseMaterial = mm.getByName(baseMaterialName_);
        materialName_ = renderer_.lock()->GetUniqueObjectName();
        material = baseMaterial->clone(materialName_);

        //todo Check that the the material alpha channel?
        const Ogre::LayerBlendModeEx &blend = baseMaterial->getTechnique(0)->getPass(0)->getTextureUnitState(0)->getAlphaBlendMode();
        if (blend.alphaArg1 > 0)
            materialHasAlpha_ = true;
        else
            materialHasAlpha_ = false;

        // Set the max alpha for the material.
        materialMaxAlpha_ = blend.alphaArg1;

        container_->setMaterialName(materialName_);
    }
    else
        OgreRenderingModule::LogError("Invalid material name!");
}

/* Loads the app */
void ImgShowerApp::load(void)
{
	Ogre::OverlayManager& overlayManager = Ogre::OverlayManager::getSingleton();

	if(!mContainer){
		// Create a panel
		mContainer = static_cast<Ogre::OverlayContainer*>(
			overlayManager.createOverlayElement("Panel", "ImgShowerAppPanel"));
		mContainer->setMetricsMode(Ogre::GMM_RELATIVE);
		mContainer->setPosition(0, 0);
		mContainer->setDimensions(1, 1);
		mContainer->setMaterialName(mOverlayName); // Optional background material
		// Ensures that the material exists
#ifdef DEBUG
		Ogre::MaterialPtr mat = Ogre::MaterialManager::getSingleton().getByName(
				mOverlayName,Ogre::ResourceGroupManager::AUTODETECT_RESOURCE_GROUP_NAME);
		ASSERT(!mat.isNull());
#endif

	}

	if(!mOverlay){
		// Create an overlay, and add the panel
		mOverlay = overlayManager.create("ImgShowerAppOverlay");
		mOverlay->add2D(mContainer);
		mOverlay->show();
	}

	// extracted from http://www.ogre3d.org/tikiwiki/Creating+Overlays+via+Code

}

 void ReplaceTextureOnMaterial(Ogre::MaterialPtr material, const std::string& original_name, const std::string& texture_name)
 {
     if (material.isNull())
         return;
     
     Ogre::TextureManager &tm = Ogre::TextureManager::getSingleton();
     Ogre::TexturePtr tex = tm.getByName(texture_name);
     
     Ogre::Material::TechniqueIterator iter = material->getTechniqueIterator();
     while(iter.hasMoreElements())
     {
         Ogre::Technique *tech = iter.getNext();
         assert(tech);
         Ogre::Technique::PassIterator passIter = tech->getPassIterator();
         while(passIter.hasMoreElements())
         {
             Ogre::Pass *pass = passIter.getNext();
             
             Ogre::Pass::TextureUnitStateIterator texIter = pass->getTextureUnitStateIterator();
             
             while(texIter.hasMoreElements())
             {
                 Ogre::TextureUnitState *texUnit = texIter.getNext();
                 if (texUnit->getTextureName() == original_name)
                 {
                     if (tex.get())
                         texUnit->setTextureName(texture_name);
                     else
                         texUnit->setTextureName("TextureMissing.png");
                 }
             }
         }
     }
 }

StringVector EC_OgreSky::GetMaterialTextureNames()
{
    StringVector texture_names;
    Ogre::MaterialPtr skyMaterial;
    switch(type_)
    {
    case OgreRenderer::SKYTYPE_BOX:
        skyMaterial = Ogre::MaterialManager::getSingleton().getByName(skyBoxParameters.material);
        break;
    case OgreRenderer::SKYTYPE_DOME:
        skyMaterial = Ogre::MaterialManager::getSingleton().getByName(skyDomeParameters.material);
        break;
    case OgreRenderer::SKYTYPE_PLANE:
        skyMaterial = Ogre::MaterialManager::getSingleton().getByName(skyPlaneParameters.material);
        break;
    }

    if (!skyMaterial.isNull())
    {
        Ogre::TextureUnitState *texture_state = skyMaterial->getTechnique(0)->getPass(0)->getTextureUnitState(0);
        if (texture_state)
            for(uint i = 0; i < texture_state->getNumFrames(); i++)
                texture_names.push_back(texture_state->getFrameTextureName(i));
        //Ogre::String textures = texture_state->getTextureName();
        //texture_names = Ogre::StringConverter::parseStringVector(textures);
    }
    return texture_names;
}

//-------------------------------------------------------------------------------------
bool BaseApplication::setup(void)
{
    mRoot = new Ogre::Root(mPluginsCfg);

    setupResources();

    bool carryOn = configure();
    if (!carryOn) return false;

    chooseSceneManager();
    createCamera();
    createViewports();

    // Set default mipmap level (NB some APIs ignore this)
    Ogre::TextureManager::getSingleton().setDefaultNumMipmaps(5);


    
    // Create background material
    Ogre::MaterialPtr material = Ogre::MaterialManager::getSingleton().create("Background", "General");
    material->getTechnique(0)->getPass(0)->createTextureUnitState("space.jpg");
    material->getTechnique(0)->getPass(0)->setDepthCheckEnabled(false);
    material->getTechnique(0)->getPass(0)->setDepthWriteEnabled(false);
    material->getTechnique(0)->getPass(0)->setLightingEnabled(false);

    // Create background rectangle covering the whole screen
    rect = new Ogre::Rectangle2D(true);
    rect->setCorners(-1.0, 1.0, 1.0, -1.0);
    rect->setMaterial("Background");
     
    // Render the background before everything else
    rect->setRenderQueueGroup(Ogre::RENDER_QUEUE_BACKGROUND);
     
    // Use infinite AAB to always stay visible
    Ogre::AxisAlignedBox aabInf;
    aabInf.setInfinite();
    rect->setBoundingBox(aabInf);
     
    // Attach background to the scene
    Ogre::SceneNode* node = mSceneMgr->getRootSceneNode()->createChildSceneNode("Background");
    node->attachObject(rect);
     
    // Example of background scrolling
    material->getTechnique(0)->getPass(0)->getTextureUnitState(0)->setScrollAnimation(-0.10, 0.0);
     
    // Don't forget to delete the Rectangle2D in the destructor of your application:

    // Create any resource listeners (for loading screens)
    createResourceListener();
    // Load resources
    loadResources();

    // Create the scene
    createScene();
    

    createFrameListener();

    return true;
};

void PlayState::CreateInitialWorld() {
  // Creacion de la entidad y del SceneNode ------------------------
  Plane plane1(Vector3(0,1,0), 0);    // Normal y distancia

  Ogre::MaterialPtr mat = Ogre::MaterialManager::getSingleton().create( "GroundJ", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);

  Ogre::TextureUnitState* tuisTexture = mat->getTechnique(0)->getPass(0)->createTextureUnitState("ground2.jpg");

  MeshManager::getSingleton().createPlane("p1",
  ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, plane1,
  200, 200, 1, 1, true, 1, 35, 35, Vector3::UNIT_Z);
  SceneNode* node = _sceneMgr->createSceneNode("groundJ");
  Entity* groundEnt = _sceneMgr->createEntity("planeEnt", "p1");
  groundEnt->setMaterialName("GroundJ");
  node->attachObject(groundEnt);
  _sceneMgr->getRootSceneNode()->addChild(node);

  // Creamos forma de colision para el plano ----------------------- 
  OgreBulletCollisions::CollisionShape *Shape;
  Shape = new OgreBulletCollisions::StaticPlaneCollisionShape
    (Ogre::Vector3(0,1,0), 0);   // Vector normal y distancia
  OgreBulletDynamics::RigidBody *rigidBodyPlane = new 
    OgreBulletDynamics::RigidBody("rigidBodyPlane", _world);
  
  // Creamos la forma estatica (forma, Restitucion, Friccion) ------
  rigidBodyPlane->setStaticShape(Shape, 0.1, 0.8); 
  std::cout << "Hola" << std::endl;
  
  ColocarWolfAndRedilAndPig();
  CrearBosqueAndColina();
  CreationWolf();
  std::cout << "BOSQUE AND COLINA COLOCADAS" <<std::endl;
}