C++ TextureUnitState::setTextureName方法代码示例

 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");
                 }
             }
         }
     }
 }

//------------------------------------------------------------------------------
Background2D::Background2D():
    m_AlphaMaxVertexCount( 0 ),
    m_AddMaxVertexCount( 0 ),

    m_ScrollEntity( NULL ),
    m_ScrollPositionStart( Ogre::Vector2::ZERO ),
    m_ScrollPositionEnd( Ogre::Vector2::ZERO ),
    m_ScrollType( Background2D::NONE ),
    m_ScrollSeconds( 0 ),
    m_ScrollCurrentSeconds( 0 ),
    m_Position( Ogre::Vector2::ZERO ),
    m_PositionReal( Ogre::Vector2::ZERO )

   ,m_range( Ogre::AxisAlignedBox::BOX_INFINITE )
    // for ffvii
   ,m_virtual_screen_size( 320, 240 )
{
    m_SceneManager = Ogre::Root::getSingleton().getSceneManager( "Scene" );
    m_RenderSystem = Ogre::Root::getSingletonPtr()->getRenderSystem();

    CreateVertexBuffers();

    m_AlphaMaterial = Ogre::MaterialManager::getSingleton().create( "Background2DAlpha", "General" );
    Ogre::Pass* pass = m_AlphaMaterial->getTechnique( 0 )->getPass( 0 );
    pass->setVertexColourTracking( Ogre::TVC_AMBIENT );
    pass->setCullingMode( Ogre::CULL_NONE );
    pass->setDepthCheckEnabled( true );
    pass->setDepthWriteEnabled( true );
    pass->setLightingEnabled( false );
    pass->setSceneBlending( Ogre::SBT_TRANSPARENT_ALPHA );
    pass->setAlphaRejectFunction( Ogre::CMPF_GREATER );
    pass->setAlphaRejectValue( 0 );
    Ogre::TextureUnitState* tex = pass->createTextureUnitState();
    tex->setTextureName( "system/blank.png" );
    tex->setNumMipmaps( -1 );
    tex->setTextureFiltering( Ogre::TFO_NONE );

    m_AddMaterial = Ogre::MaterialManager::getSingleton().create( "Background2DAdd", "General" );
    pass = m_AddMaterial->getTechnique( 0 )->getPass( 0 );
    pass->setVertexColourTracking( Ogre::TVC_AMBIENT );
    pass->setCullingMode( Ogre::CULL_NONE );
    pass->setDepthCheckEnabled( true );
    pass->setDepthWriteEnabled( true );
    pass->setLightingEnabled( false );
    pass->setSceneBlending( Ogre::SBT_ADD );
    pass->setAlphaRejectFunction( Ogre::CMPF_GREATER );
    pass->setAlphaRejectValue( 0 );
    tex = pass->createTextureUnitState();
    tex->setTextureName( "system/blank.png" );
    tex->setNumMipmaps( -1 );
    tex->setTextureFiltering( Ogre::TFO_NONE );

    m_SceneManager->addRenderQueueListener( this );
}

//------------------------------------------------------------------------------
void
Background2D::SetImage( const Ogre::String& image )
{
    Ogre::LogManager::getSingleton().stream()
        << "Background2D::SetImage " << image;
    Ogre::Pass* pass = m_AlphaMaterial->getTechnique( 0 )->getPass( 0 );
    Ogre::TextureUnitState* tex = pass->getTextureUnitState( 0 );
    tex->setTextureName( image );
    pass = m_AddMaterial->getTechnique( 0 )->getPass( 0 );
    tex = pass->getTextureUnitState( 0 );
    tex->setTextureName( image );
}

    void SkyDome::setSkyGradientsImage (const Ogre::String& gradients)
    {
        Ogre::TextureUnitState* gradientsTus =
                mMaterial->getTechnique (0)->getPass (0)->getTextureUnitState(0);

        gradientsTus->setTextureAddressingMode (Ogre::TextureUnitState::TAM_CLAMP);

        // Per 1.4 compatibility. Not tested with recent svn.
        #if OGRE_VERSION < ((1 << 16) | (3 << 8))
            gradientsTus->setTextureName (gradients, Ogre::TEX_TYPE_2D, -1, true);
        #else
            gradientsTus->setTextureName (gradients, Ogre::TEX_TYPE_2D);
            gradientsTus->setIsAlpha (true);
        #endif
    }

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;
}

Ogre::MaterialPtr TextureManager::makeOgreMaterial(int16_t MaterialTypeID, int16_t TextureID)
{
    Ogre::MaterialPtr NewMaterial = Ogre::MaterialManager::getSingleton().create("GrassMaterial", "General", true);

    Ogre::Image* NewImage = new Ogre::Image(); // Delete?
    uint16_t ImageID = IMAGE->GenerateMaterialImage(MaterialTypeID, TextureID);
    uint8_t* iData = IMAGE->getImageData(ImageID);
    uint16_t Width = IMAGE->getImageWidth(ImageID);
    uint16_t Height = IMAGE->getImageHeight(ImageID);


    NewImage->loadDynamicImage(iData, Width, Height, Ogre::PF_A8R8G8B8);
    Ogre::TexturePtr NewTex = Ogre::TextureManager::getSingleton().loadImage("TextureX", "General", *NewImage, Ogre::TEX_TYPE_2D, 1);

    Ogre::Technique* FirstTechnique = NewMaterial->getTechnique(0);
    Ogre::Pass* FirstPass = FirstTechnique->getPass(0);
    FirstPass->setLightingEnabled(false);

    Ogre::TextureUnitState* TextureUnit = FirstPass->createTextureUnitState();
    TextureUnit->setTextureName("TextureX", Ogre::TEX_TYPE_2D);

    delete NewImage;

    return NewMaterial;
}

bool Simple::compileMaterial(Ogre::MaterialPtr material)
{
	material->removeAllTechniques();
	Ogre::Technique* technique = material->createTechnique();
	for (SurfaceLayerStore::const_iterator I = mTerrainPageSurfaces.begin(); I != mTerrainPageSurfaces.end(); ++I) {
		const TerrainPageSurfaceLayer* surfaceLayer = I->second;
		if (I == mTerrainPageSurfaces.begin()) {
			Ogre::Pass* pass = technique->createPass();
			pass->setLightingEnabled(false);
			//add the first layer of the terrain, no alpha or anything
			Ogre::TextureUnitState * textureUnitState = pass->createTextureUnitState();
			textureUnitState->setTextureScale(1.0f / surfaceLayer->getScale(), 1.0f / surfaceLayer->getScale());
			textureUnitState->setTextureName(surfaceLayer->getDiffuseTextureName());
			textureUnitState->setTextureCoordSet(0);
		} else {
			if (surfaceLayer->intersects(*mGeometry)) {
				addPassToTechnique(*mGeometry, technique, surfaceLayer);
			}
		}
	}
	if (mTerrainPageShadow) {
		addShadow(technique, mTerrainPageShadow, material);
	}
	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 ImageDisplay::onInitialize()
{
  ImageDisplayBase::onInitialize();
  {
    static uint32_t count = 0;
    std::stringstream ss;
    ss << "ImageDisplay" << count++;
    img_scene_manager_ = Ogre::Root::getSingleton().createSceneManager(Ogre::ST_GENERIC, ss.str());
  }

  img_scene_node_ = img_scene_manager_->getRootSceneNode()->createChildSceneNode();

  {
    static int count = 0;
    std::stringstream ss;
    ss << "ImageDisplayObject" << count++;

    screen_rect_ = new Ogre::Rectangle2D(true);
    screen_rect_->setRenderQueueGroup(Ogre::RENDER_QUEUE_OVERLAY - 1);
    screen_rect_->setCorners(-1.0f, 1.0f, 1.0f, -1.0f);

    ss << "Material";
    material_ = Ogre::MaterialManager::getSingleton().create( ss.str(), Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME );
    material_->setSceneBlending( Ogre::SBT_REPLACE );
    material_->setDepthWriteEnabled(false);
    material_->setReceiveShadows(false);
    material_->setDepthCheckEnabled(false);

    material_->getTechnique(0)->setLightingEnabled(false);
    Ogre::TextureUnitState* tu = material_->getTechnique(0)->getPass(0)->createTextureUnitState();
    tu->setTextureName(texture_.getTexture()->getName());
    tu->setTextureFiltering( Ogre::TFO_NONE );

    material_->setCullingMode(Ogre::CULL_NONE);
    Ogre::AxisAlignedBox aabInf;
    aabInf.setInfinite();
    screen_rect_->setBoundingBox(aabInf);
    screen_rect_->setMaterial(material_->getName());
    img_scene_node_->attachObject(screen_rect_);
  }

  render_panel_ = new RenderPanel();
  render_panel_->getRenderWindow()->setAutoUpdated(false);
  render_panel_->getRenderWindow()->setActive( false );

  render_panel_->resize( 640, 480 );
  render_panel_->initialize(img_scene_manager_, context_);

  setAssociatedWidget( render_panel_ );

  render_panel_->setAutoRender(false);
  render_panel_->setOverlaysEnabled(false);
  render_panel_->getCamera()->setNearClipDistance( 0.01f );

  updateNormalizeOptions();
}

	//--------------------------------------------------------------------------------
	static void setTextureAndTexAniFPS(const MaterialPtr& _material, const String& _texture, Real _texAniFPS)
	{
		Technique* technique = _material->getTechnique(0);
		Pass* pass = technique->getPass(0);
		if(_texture.empty())
		{
			pass->removeAllTextureUnitStates();
		}
		else
		{
			TextureManager& tmgr = TextureManager::getSingleton();
			Ogre::TextureUnitState* tus = pass->getNumTextureUnitStates() ? pass->getTextureUnitState(0) : pass->createTextureUnitState();
			if(_texAniFPS == 0)
			{
				TexturePtr ogreTexture = tmgr.createOrRetrieve(_texture).first;
				const String& ogreTexName = ogreTexture->getName();
				tus->setTextureName(ogreTexName);
			}
			else
			{
				vector<String>::type ogreTexNames;
				TexturePtr ogreTexture = tmgr.createOrRetrieve(_texture).first;
				ogreTexNames.push_back(ogreTexture->getName());

				size_t dotpos = _texture.rfind('.');
				if(dotpos != String::npos && dotpos >= 1 
					&& '0' <= _texture[dotpos-1]  && _texture[dotpos-1] < '9')
				{
					String tmpname = _texture;
					char& dig0 = tmpname[dotpos - 1];
					++dig0;
					while(!tmgr.getByName(tmpname).isNull() || tmgr.canLoadResource(tmpname, TextureManager::GROUP_NAME))
					{
						TexturePtr ogreTexture = tmgr.createOrRetrieve(tmpname).first;
						ogreTexNames.push_back(ogreTexture->getName());
						++dig0;
						if(dig0 > '9')
						{
							if(dotpos >= 2 && '0' <= _texture[dotpos-2]  && _texture[dotpos-2] < '9')
							{
								char& dig1 = tmpname[dotpos-2];
								++dig1;
								dig0 = '0';
							}
							else
								break;
						}
					}
				}
				Real duration = ogreTexNames.size() / _texAniFPS;
				tus->setAnimatedTextureName(&ogreTexNames[0], ogreTexNames.size(), duration);
			}
		}
	}

    void SkyDome::setAtmosphereDepthImage (const Ogre::String& atmosphereDepth)
    {
        if (!mShadersEnabled) {
            return;
        }

        Ogre::TextureUnitState* atmosphereTus =
                mMaterial->getTechnique (0)->getPass (0)->getTextureUnitState(1);

        atmosphereTus->setTextureName (atmosphereDepth, Ogre::TEX_TYPE_1D);
        atmosphereTus->setTextureAddressingMode (Ogre::TextureUnitState::TAM_CLAMP, Ogre::TextureUnitState::TAM_WRAP, Ogre::TextureUnitState::TAM_WRAP);
    }

void EffectManager::addEffect(const std::string &model, std::string textureOverride, const Ogre::Vector3 &worldPosition, float scale)
{
    Ogre::SceneNode* sceneNode = mSceneMgr->getRootSceneNode()->createChildSceneNode(worldPosition);
    sceneNode->setScale(scale,scale,scale);

    // fix texture extension to .dds
    if (textureOverride.size() > 4)
    {
        textureOverride[textureOverride.size()-3] = 'd';
        textureOverride[textureOverride.size()-2] = 'd';
        textureOverride[textureOverride.size()-1] = 's';
    }


    NifOgre::ObjectScenePtr scene = NifOgre::Loader::createObjects(sceneNode, model);

    // TODO: turn off shadow casting
    MWRender::Animation::setRenderProperties(scene, RV_Misc,
                        RQG_Main, RQG_Alpha, 0.f, false, NULL);

    for(size_t i = 0;i < scene->mControllers.size();i++)
    {
        if(scene->mControllers[i].getSource().isNull())
            scene->mControllers[i].setSource(Ogre::SharedPtr<EffectAnimationTime> (new EffectAnimationTime()));
    }

    if (!textureOverride.empty())
    {
        for(size_t i = 0;i < scene->mParticles.size(); ++i)
        {
            Ogre::ParticleSystem* partSys = scene->mParticles[i];

            Ogre::MaterialPtr mat = scene->mMaterialControllerMgr.getWritableMaterial(partSys);

            for (int t=0; t<mat->getNumTechniques(); ++t)
            {
                Ogre::Technique* tech = mat->getTechnique(t);
                for (int p=0; p<tech->getNumPasses(); ++p)
                {
                    Ogre::Pass* pass = tech->getPass(p);
                    for (int tex=0; tex<pass->getNumTextureUnitStates(); ++tex)
                    {
                        Ogre::TextureUnitState* tus = pass->getTextureUnitState(tex);
                        tus->setTextureName("textures\\" + textureOverride);
                    }
                }
            }
        }
    }

    mEffects.push_back(std::make_pair(sceneNode, scene));
}

//----------------------------------------------------------------------------------------
QImage ImageConverter::_imageFromRenderTarget(const Ogre::Image& img)
{
    Ogre::TextureManager::getSingletonPtr()->loadImage("QTTextureName", "QTImageConverter", img);

    // create our material
    Ogre::MaterialPtr material = Ogre::MaterialManager::getSingletonPtr()->create("terrainMaterial", "QTImageConverter");
    Ogre::Technique * technique = material->getTechnique(0);
    Ogre::Pass* pass = technique->getPass(0);
    Ogre::TextureUnitState* textureUnit = pass->createTextureUnitState();
    textureUnit->setTextureName("QTTextureName");

    return _getRenderTarget(material->getName());
}

//-------------------------------------------------------------------------------------
void BasicTutorial2::createScene(void)
{
    mSceneMgr->setAmbientLight(Ogre::ColourValue(0, 0, 0));
    //mSceneMgr->setShadowTechnique(Ogre::SHADOWTYPE_STENCIL_ADDITIVE);
 
	//Create cube
	    //Create a basic green color texture 
 
	Ogre::MaterialPtr mat = Ogre::MaterialManager::getSingleton().create("BoxColor", "General", true );
	Ogre::Technique* tech = mat->getTechnique(0);
	Ogre::Pass* pass = tech->getPass(0);
	Ogre::TextureUnitState* tex = pass->createTextureUnitState();
 
	tex->setTextureName("grassTexture.png");
	//tex->setNumMipmaps(4);
	tex->setTextureAnisotropy(1);
	tex->setTextureFiltering(Ogre::FO_POINT, Ogre::FO_POINT, Ogre::FO_POINT);

	    //Create the one box and the supporting class objects
	Ogre::ManualObject* testBox  = createCubeMesh("TestBox1", "BoxColor");	
    Ogre::SceneNode* headNode = mSceneMgr->getRootSceneNode()->createChildSceneNode();
	Ogre::MeshPtr Mesh = testBox->convertToMesh("TestBox2");
	Ogre::StaticGeometry* pGeom = new Ogre::StaticGeometry (mSceneMgr, "Boxes");
	Ogre::Entity* pEnt = mSceneMgr->createEntity("TestBox2");
	
	//testBox->triangle
	pGeom->setRegionDimensions(Ogre::Vector3(300, 300, 300));
 
	World::Instance();
	 
	pGeom->build ();
 
        mSceneMgr->setAmbientLight(Ogre::ColourValue(0.5, 0.5, 0.5));
	Ogre::Light* l = mSceneMgr->createLight("MainLight");
        l->setPosition(20,80,50);
	//Create Cube

 /*   Ogre::Entity* entNinja = mSceneMgr->createEntity("Ninja", "ninja.mesh");
    entNinja->setCastShadows(true);
    mSceneMgr->getRootSceneNode()->createChildSceneNode()->attachObject(entNinja);*/
 
 
    Ogre::Light* directionalLight = mSceneMgr->createLight("directionalLight");
    directionalLight->setType(Ogre::Light::LT_DIRECTIONAL);
    directionalLight->setDiffuseColour(Ogre::ColourValue(.25, .25, 0));
    directionalLight->setSpecularColour(Ogre::ColourValue(.25, .25, 0));
 
    directionalLight->setDirection(Ogre::Vector3( 0, -1, 1 )); 
 
 
}

void IntroState::createScene()
{
	MaterialPtr material = MaterialManager::getSingleton().create("Background", "General");
	material->getTechnique(0)->getPass(0)->createTextureUnitState("rockwall.tga");
	material->getTechnique(0)->getPass(0)->setDepthCheckEnabled(false);
	material->getTechnique(0)->getPass(0)->setDepthWriteEnabled(false);
	material->getTechnique(0)->getPass(0)->setLightingEnabled(false);

 
//Ustvarimo 2D kvadrat, ki prekrije celonti ekrat
	Rectangle2D* rect = new Rectangle2D(true);
	rect->setCorners(-1.0, 1.0, 1.0, -1.0);
	rect->setMaterial("Background");
 
	//najprej renderiramo ozadje potem pa vse ostalo
	rect->setRenderQueueGroup(RENDER_QUEUE_BACKGROUND);
 
	rect->setBoundingBox(AxisAlignedBox(-100000.0*Ogre::Vector3::UNIT_SCALE, 100000.0*Ogre::Vector3::UNIT_SCALE));
 
	// pripnemo teksturo na ozadje
	SceneNode* node = m_pSceneMgr->getRootSceneNode()->createChildSceneNode("Background");
	node->attachObject(rect);

	Ogre::MaterialPtr mat;
	Ogre::TextureUnitState* tex;
 
	Ogre::String materialName="Background";
	if (!Ogre::MaterialManager::getSingleton().resourceExists(materialName))
	{
		throw("Error, material doesn't exist!");
	}

	//tukaj prilepimo film na prej ustvarjeno teksturo
	mat=Ogre::MaterialManager::getSingleton().getByName(materialName);
	tex=mat->getTechnique(0)->getPass(0)->getTextureUnitState(0);
	tex->setTextureName(dshowMovieTextureSystem->getMovieTexture()->getName());

	mTitleLabel->setCaption("Intro");
	mTitleLabel->show();

	mTitleLabel2->setCaption("Press ESC to Exit Game!");
	mTitleLabel2->show();

	mTitleLabel3->setCaption("Press Space to skip!");
	mTitleLabel3->show();


}

void Simple::addShadow(Ogre::Technique* technique, const TerrainPageShadow* terrainPageShadow, Ogre::MaterialPtr material, std::set<std::string>& managedTextures) const
{
	Ogre::Pass* shadowPass = technique->createPass();

	shadowPass->setSceneBlending(Ogre::SBT_MODULATE);
	shadowPass->setLightingEnabled(false);
//	shadowPass->setFog(true, Ogre::FOG_NONE);

	Ogre::TextureUnitState * textureUnitStateSplat = shadowPass->createTextureUnitState();
	Ogre::TexturePtr texture = updateShadowTexture(material, terrainPageShadow, managedTextures);
	textureUnitStateSplat->setTextureName(texture->getName());

	textureUnitStateSplat->setTextureCoordSet(0);
	textureUnitStateSplat->setTextureAddressingMode(Ogre::TextureUnitState::TAM_CLAMP);
	textureUnitStateSplat->setTextureFiltering(Ogre::TFO_ANISOTROPIC);
}