C++ Technique::getPass方法代码示例

	//--------------------------------------------------------------------------------
	void MaterialUtil::updateSelectedVersion(const MaterialPtr& _material)
	{
		String name = _material->getName();
		String selName = getSelectedVersionName(name);
		MaterialPtr material, selectedMaterial;
		if(selName == name)
		{
			name = getUnselectedVersionName(selName);
			selectedMaterial = _material;
			material = MaterialManager::getSingleton().getByName(name);
		}
		else
		{
			material = _material;
			selectedMaterial = MaterialManager::getSingleton().getByName(selName);
		}
		
		if(!material.isNull() && !selectedMaterial.isNull())
		{
			material->copyDetailsTo(selectedMaterial);
			Ogre::Technique* technique = selectedMaterial->getBestTechnique();
			Pass* pass0 = technique->getPass(0);
			Pass* passNew = technique->createPass();
			passNew->setDiffuse(1, 1, 1, 1);
			passNew->setPolygonMode(Ogre::PM_WIREFRAME);

			if(pass0->getNumTextureUnitStates() != 0)
			{
				Ogre::TextureUnitState* tu = pass0->getTextureUnitState(0);
				tu->setColourOperationEx(Ogre::LBX_MODULATE, 
					Ogre::LBS_TEXTURE, Ogre::LBS_MANUAL,
					ColourValue::White, ColourValue(1, 0.6f, 0.6f, 1));
			}
		}
	}

void DeferredLight::updateFromCamera(Ogre::Camera* camera)
{
	const Ogre::MaterialPtr& mat = getMaterial();
	if (!mat->isLoaded()) 
	{
		mat->load();
	}
	Ogre::Technique* tech = mat->getBestTechnique();
	Ogre::Vector3 farCorner = camera->getViewMatrix(true) * camera->getWorldSpaceCorners()[4];

	for (unsigned short i=0; i<tech->getNumPasses(); i++) 
	{
		Ogre::Pass* pass = tech->getPass(i);
		Ogre::GpuProgramParametersSharedPtr params = pass->getVertexProgramParameters();
		if (params->_findNamedConstantDefinition("farCorner"))
			params->setNamedConstant("farCorner", farCorner);
	    
		params = pass->getFragmentProgramParameters();
		if (params->_findNamedConstantDefinition("farCorner"))
			params->setNamedConstant("farCorner", farCorner);

		// If inside light geometry, render back faces with CMPF_GREATER, otherwise normally
		if (mParentLight->getType() == Ogre::Light::LT_DIRECTIONAL)
		{
			pass->setCullingMode(Ogre::CULL_CLOCKWISE);
			pass->setDepthCheckEnabled(false);
		}
		else
		{
			pass->setDepthCheckEnabled(true);
			if (isCameraInsideLight(camera))
			{
				pass->setCullingMode(Ogre::CULL_ANTICLOCKWISE);
				pass->setDepthFunction(Ogre::CMPF_GREATER_EQUAL);
			}
			else
			{
				pass->setCullingMode(Ogre::CULL_CLOCKWISE);
				pass->setDepthFunction(Ogre::CMPF_LESS_EQUAL);
			}
		}

		Ogre::Camera shadowCam("ShadowCameraSetupCam", 0);
		shadowCam._notifyViewport(camera->getViewport());
		Ogre::SceneManager* sm = mParentLight->_getManager();
		sm->getShadowCameraSetup()->getShadowCamera(sm, 
			camera, camera->getViewport(), mParentLight, &shadowCam, 0);
			
		//Get the shadow camera position
		if (params->_findNamedConstantDefinition("shadowCamPos")) 
		{
			params->setNamedConstant("shadowCamPos", shadowCam.getPosition());
		}
		if (params->_findNamedConstantDefinition("shadowFarClip"))
		{
			params->setNamedConstant("shadowFarClip", shadowCam.getFarClipDistance());
		}

	}
}

	//-----------------------------------------------------------------------
	void PrimitiveShapeSet::rotateTexture(Ogre::Real speed)
	{
		// Get the material and rotate it, assume the material is loaded already, otherwise skip.
		Ogre::MaterialPtr material = getMaterial();
		if (material.isNull())
			return;

		Ogre::TextureUnitState::EffectMap::const_iterator it;
		unsigned short numberOfTechniques = material->getNumTechniques();
		for (unsigned short u = 0; u < numberOfTechniques; ++u)
		{
			Ogre::Technique* technique = material->getTechnique(u);
			unsigned short numberOfPasses = technique->getNumPasses();
			for (unsigned short v = 0; v < numberOfPasses; ++v)
			{
				Ogre::Pass* pass = technique->getPass(v);
				unsigned short numberOfTextureUnitStates = pass->getNumTextureUnitStates();
				for (unsigned short w = 0; w < numberOfTextureUnitStates; ++w)
				{
					// Set the rotation if not already available.
					// This can only be done once! Changing the rotationspeed or removing the rotation
					// and resetting it doesn´t seem to work.
					Ogre::TextureUnitState* textureUnitState = pass->getTextureUnitState(w);
					it = textureUnitState->getEffects().find(Ogre::TextureUnitState::ET_ROTATE);
					if (it == textureUnitState->getEffects().end())
					{
						textureUnitState->setRotateAnimation(speed);
					}
				}
			}
		}
	}

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;
}

//-------------------------------------------------------
Ogre::Material* Ground::CreateGroundMaterialTextured(const std::string & name, const Ogre::Image* texture)
{
    Ogre::TexturePtr heightMapTexture = Ogre::TextureManager::getSingleton().loadImage("Texture/Terrain",
        Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, *texture);

    Ogre::MaterialPtr material = Ogre::MaterialManager::getSingleton().create(name, Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
    {
        Ogre::Technique* techniqueGL = material->getTechnique(0);
        Ogre::Pass* pass = techniqueGL->getPass(0);
        {
            auto vprogram = Ogre::HighLevelGpuProgramManager::getSingleton().createProgram("Shader/" + CLASS_NAME + "/GL/Textured/V",
                Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, "glsl", Ogre::GPT_VERTEX_PROGRAM);
            vprogram->setSource(Shader_GL_Simple_V);
            //auto vparams = vprogram->createParameters();
            //vparams->setNamedAutoConstant("modelviewproj", Ogre::GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);

            pass->setVertexProgram(vprogram->getName());
        }
        {
            auto fprogram = Ogre::HighLevelGpuProgramManager::getSingleton().createProgram("Shader/" + CLASS_NAME + "/GL/Textured/F",
                Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, "glsl", Ogre::GPT_FRAGMENT_PROGRAM);
            fprogram->setSource(Shader_GL_Simple_F);

            auto unit0 = pass->createTextureUnitState(heightMapTexture->getName());
            unit0->setTextureAddressingMode(Ogre::TextureUnitState::TAM_CLAMP);
            unit0->setTextureFiltering(Ogre::TFO_NONE);

            pass->setFragmentProgram(fprogram->getName());
        }
    }
#if !NDEBUG
    material->load();
#endif
    return material.get();
}

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));
					}
				}
			}
		}
	}
}

    IntroState::IntroState(Engine* p_engine) :
        GameState(p_engine),
        m_totalMilliseconds(std::time_t(2000)),
        m_elapsedMilliseconds(0)
    {
        std::clog << "Entering intro state..." << std::endl;

        // do one input state capture just to hide the mouse cursor
        InputSystem* inputSystem = m_engine->getInputSystem();
        inputSystem->capture();

        // get the material by name
        std::clog << "Loading fade overlay material..." << std::endl;
        Ogre::ResourcePtr resptr = Ogre::MaterialManager::getSingleton().
            getByName("Materials/FadeOverlay");
        Ogre::Material* material = dynamic_cast<Ogre::Material*>(resptr.getPointer());
        Ogre::Technique* tech = material->getTechnique(0);
        Ogre::Pass* pass = tech->getPass(0);

        m_textureUnitState = pass->getTextureUnitState(0);

        // get the overlay
        std::clog << "Loading fade overlay..." << std::endl;
        m_fadeOverlay = Ogre::OverlayManager::getSingleton().getByName("Overlays/FadeOverlay");

        m_alpha = 1.0;
        m_fadeOverlay->show();
    }

//=============================================================================
// IMaterialAction
//=============================================================================
Ogre::Pass* IMaterialAction::getFirstPassOfFirstTechnique( SubEntityMaterial* subEntity )
{
	//OMASSERTM( 0 < subEntity->getMaterial()->getNumTechniques(), "Don't get Any Tecnnique on Material" << subEntity->getMaterial()->getName() );
  Ogre::Technique * technique = subEntity->getMaterial()->getTechnique( 0 );
	//OMASSERTM( 0 < technique->getNumPasses(), "Don't get Any PASS on Material " << subEntity->getMaterial()->getName() );
  return technique->getPass( 0 ) ;
}

const Ogre::MaterialPtr& MaterialGenerator::GetMaterial(Perm permutation)
{
    // Check if material/shader permutation already was generated
    MaterialMap::iterator i = mMaterials.find(permutation);
    if (i != mMaterials.end())
    {
        return i->second;
    }
    else
    {
        // Create it
        Ogre::MaterialPtr templ = GetTemplateMaterial(permutation & mMatMask);
        Ogre::GpuProgramPtr vs = GetVertexShader(permutation & mVsMask);
        Ogre::GpuProgramPtr fs = GetFragmentShader(permutation & mFsMask);

        // Create material name
        string name = mMaterialBaseName + Ogre::StringConverter::toString(permutation);

        // Create material from template, and set shaders
        Ogre::MaterialPtr mat = templ->clone(name);
        Ogre::Technique* tech = mat->getTechnique(0);
        Ogre::Pass* pass = tech->getPass(0);
        pass->setFragmentProgram(fs->getName());
        pass->setVertexProgram(vs->getName());

        // And store it
        mMaterials[permutation] = mat;
        return mMaterials[permutation];
    }
}

	//-----------------------------------------------------------------------
	void EntityRenderer::_rotateTexture(VisualParticle* particle, Ogre::Entity* entity)
	{
		Ogre::TextureUnitState::EffectMap::const_iterator it;
		// Get the material and rotate it
		unsigned int numberOfSubEntities = entity->getNumSubEntities();
		for (unsigned short u = 0; u < numberOfSubEntities; ++u)
		{
			Ogre::MaterialPtr material = entity->getSubEntity(u)->getMaterial();
			unsigned short numberOfTechniques = material->getNumTechniques();
			for (unsigned short v = 0; v < numberOfTechniques; ++v)
			{
				Ogre::Technique* technique = material->getTechnique(v);
				unsigned short numberOfPasses = technique->getNumPasses();
				for (unsigned short w = 0; w < numberOfPasses; ++w)
				{
					Ogre::Pass* pass = technique->getPass(w);
					unsigned short numberOfTextureUnitStates = pass->getNumTextureUnitStates();
					for (unsigned short x = 0; x < numberOfTextureUnitStates; ++x)
					{
						// Set the rotation if not already available.
						// This can only be done once! Changing the rotationspeed or removing the rotation
						// and resetting it doesn´t seem to work.
						Ogre::TextureUnitState* textureUnitState = pass->getTextureUnitState(x);
						it = textureUnitState->getEffects().find(Ogre::TextureUnitState::ET_ROTATE);
						if (it == textureUnitState->getEffects().end())
						{
							textureUnitState->setRotateAnimation((particle->zRotationSpeed.valueRadians()));
						}
					}
				}
			}
		}
	}

void MeshResourceMarker::reset()
{
  //destroy entity
  if (entity_)
  {
    context_->getSceneManager()->destroyEntity( entity_ );
    entity_ = 0;
  }

  // destroy all the materials we've created
  S_MaterialPtr::iterator it;
  for ( it = materials_.begin(); it!=materials_.end(); it++ )
  {
    Ogre::MaterialPtr material = *it;
    if (!material.isNull())
    {
      for (size_t i = 0; i < material->getNumTechniques(); ++i)
      {
        Ogre::Technique* t = material->getTechnique(i);
        // hack hack hack, really need to do a shader-based way of picking, rather than
        // creating a texture for each object
        if (t->getSchemeName() == "Pick")
        {
          Ogre::TextureManager::getSingleton().remove(t->getPass(0)->getTextureUnitState(0)->getTextureName());
        }
      }

      material->unload();
      Ogre::MaterialManager::getSingleton().remove(material->getName());
    }
  }
  materials_.clear();
}

void Water::createdConfiguration (sh::MaterialInstance* m, const std::string& configuration)
{
    if (configuration == "local_map" || !Settings::Manager::getBool("shader", "Water"))
    {
        // for simple water, set animated texture names
        // these have to be set in code
        std::string textureNames[32];
        for (int i=0; i<32; ++i)
        {
            textureNames[i] = "textures\\water\\water" + StringConverter::toString(i, 2, '0') + ".dds";
        }

        Ogre::Technique* t = static_cast<sh::OgreMaterial*>(m->getMaterial())->getOgreTechniqueForConfiguration(configuration);
        if (t->getPass(0)->getNumTextureUnitStates () == 0)
            return;
        t->getPass(0)->getTextureUnitState(0)->setAnimatedTextureName(textureNames, 32, 2);
        t->getPass(0)->setDepthWriteEnabled (false);
        t->getPass(0)->setSceneBlending (Ogre::SBT_TRANSPARENT_ALPHA);
    }
}

void BillboardObject::setColour(const ColourValue& pColour)
{
    mColour = pColour;
    Ogre::MaterialPtr m = static_cast<sh::OgreMaterial*>(mMaterial->getMaterial ())->getOgreMaterial ();
    for (int i=0; i<m->getNumTechniques(); ++i)
    {
        Ogre::Technique* t = m->getTechnique(i);
        if (t->getNumPasses ())
            t->getPass(0)->setSelfIllumination (pColour);
    }
}

void BillboardObject::setVisibility(const float visibility)
{
    mVisibility = visibility;
    Ogre::MaterialPtr m = static_cast<sh::OgreMaterial*>(mMaterial->getMaterial ())->getOgreMaterial ();
    for (int i=0; i<m->getNumTechniques(); ++i)
    {
        Ogre::Technique* t = m->getTechnique(i);
        if (t->getNumPasses ())
            t->getPass(0)->setDiffuse (0,0,0, visibility);
    }
}

void MainWindow::populateWorkSpaceTree(const QStringList &itemNames)
{
    for(int count = 0; count < itemNames.size(); ++count)
    {
        QTreeWidgetItem *matItem = new QTreeWidgetItem(ui->workspaceTree);
        QString parentName = itemNames.at(count);
        matItem->setText(0, parentName);
        matItem->setText(1, "material");
        Ogre::MaterialPtr parMat = Ogre::MaterialManager::getSingleton().getByName(parentName.toStdString());

        unsigned short numTech = parMat.getPointer()->getNumTechniques();

        for (int countTech = 0; countTech < numTech; ++countTech)
        {
            Ogre::Technique *parTech = parMat.getPointer()->getTechnique(countTech);
            int numPass = parTech->getNumPasses();
            QTreeWidgetItem *techItem = new QTreeWidgetItem(matItem);
            techItem->setText(0, QString("technique(")+QString(Ogre::String(parTech->getName()).c_str())+QString(")"));

            for (int countPass = 0; countPass < numPass; ++countPass)
            {
                QTreeWidgetItem *passItem = new QTreeWidgetItem(techItem);
                Ogre::Pass* pass = parTech->getPass(countPass);
                passItem->setText(0, QString("pass(")+QString(Ogre::String(pass->getName()).c_str())+QString(")"));
                passItem->setText(1, QString("pass"));

                if(pass->hasVertexProgram())
                {
                    QTreeWidgetItem *vpItem = new QTreeWidgetItem(passItem);
                    vpItem->setText(0,Ogre::String(pass->getVertexProgramName()).c_str());
                    vpItem->setText(1,QString("VertexProgram"));
                    vpItem->setText(2,QString(parentName));
                    vpItem->setText(3,QString(countTech));
                    vpItem->setText(4,QString(countPass));
                }
                if(pass->hasFragmentProgram())
                {
                    QTreeWidgetItem *fpItem = new QTreeWidgetItem(passItem);
                    fpItem->setText(0,Ogre::String(pass->getFragmentProgramName()).c_str());
                    fpItem->setText(1,QString("FragmentProgram"));
                    fpItem->setText(2,QString(parentName));
                    fpItem->setText(3,QString(countTech));
                    fpItem->setText(4,QString(countPass));
                }
                if(pass->hasGeometryProgram())
                {
                    QTreeWidgetItem *gpItem = new QTreeWidgetItem(passItem);
                    gpItem->setText(0,Ogre::String(pass->getGeometryProgramName()).c_str());
                }
            }
        }
    }
}