C++ Technique::getNumPasses方法代码示例

	//-----------------------------------------------------------------------
	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);
					}
				}
			}
		}
	}

	//-----------------------------------------------------------------------
	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 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 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));
					}
				}
			}
		}
	}
}

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());
                }
            }
        }
    }
}

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));
}

//-----------------------------------------------------------------------
void MaterialTab::selectMaterial(wxString& materialName)
{
	Ogre::TextureUnitState* textureUnitState = 0;
	mTxtMaterialName->SetValue(materialName);
	if (isSelectedMaterialInUse())
	{
		mTxtMaterialName->Disable();
	}
	else
	{
		mTxtMaterialName->Enable();
	}
	mLastSelectedMaterial = materialName;
	Ogre::String name = wx2ogre(materialName);
	Ogre::MaterialPtr material = Ogre::MaterialManager::getSingleton().getByName(name);
	if (!material.isNull() && material->getNumTechniques() > 0)
	{
		material->load();
		mTxtTextureLoad->SetValue(wxT(""));
		Ogre::Technique* technique = material->getBestTechnique(); // Get the best technique
		if (technique && technique->getNumPasses() > 0)
		{
			Ogre::Pass* pass = technique->getPass(0); // Get the first
			if (pass)
			{
				// Set pass properties
				mCheckLighting->SetValue(pass->getLightingEnabled());
				mCheckDepthCheck->SetValue(pass->getDepthCheckEnabled());
				mCheckDepthWrite->SetValue(pass->getDepthWriteEnabled());
				mSceneBlendList->SetValue(getSceneBlending(pass));
				if (pass->getNumTextureUnitStates() > 0)
				{
					textureUnitState = pass->getTextureUnitState(0); // Get the first
					if (textureUnitState)
					{
						// Set texture properties
						if (textureUnitState->getNumFrames() > 0)
						{
							wxString name = ogre2wx(textureUnitState->getFrameTextureName(0));
							mTxtTextureLoad->SetValue(name);
						}

						mAddressingModeList->SetValue(getTextureAddressingMode(textureUnitState));
					}
				}
			}
		}
	}

	// Display image
	viewTexture(textureUnitState); // Clear the old texture if no TextureUnitState
}

//-----------------------------------------------------------------------
Ogre::Pass* MaterialTab::getFirstPass(void)
{
	wxString materialName = mMaterialListBox->GetStringSelection();
	Ogre::String name = wx2ogre(materialName);
	Ogre::MaterialPtr material = Ogre::MaterialManager::getSingleton().getByName(name);
	if (!material.isNull() && material->getNumTechniques() > 0)
	{
		Ogre::Technique* technique = 0;
		material->load();
		technique = material->getBestTechnique(); // Get the best technique
		if (technique && technique->getNumPasses() > 0)
		{
			return technique->getPass(0); // Get the first
		}
	}
	return 0;
}

void AmbientLight::updateFromCamera(Ogre::Camera* camera)
{
	Ogre::Technique* tech = getMaterial()->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);
		// get the vertex shader parameters
		Ogre::GpuProgramParametersSharedPtr params = pass->getVertexProgramParameters();
		// set the camera's far-top-right corner
		if (params->_findNamedConstantDefinition("farCorner"))
			params->setNamedConstant("farCorner", farCorner);
	    
		params = pass->getFragmentProgramParameters();
		if (params->_findNamedConstantDefinition("farCorner"))
			params->setNamedConstant("farCorner", farCorner);
	}
}

Ogre::Technique* GBufferSchemeHandler::handleSchemeNotFound(unsigned short schemeIndex, 
		const Ogre::String& schemeName, Ogre::Material* originalMaterial, unsigned short lodIndex, 
		const Ogre::Renderable* rend)
{
	Ogre::MaterialManager& matMgr = Ogre::MaterialManager::getSingleton();
	Ogre::String curSchemeName = matMgr.getActiveScheme();
	matMgr.setActiveScheme(Ogre::MaterialManager::DEFAULT_SCHEME_NAME);
	Ogre::Technique* originalTechnique = originalMaterial->getBestTechnique(lodIndex, rend);
	matMgr.setActiveScheme(curSchemeName);

	Ogre::Technique* gBufferTech = originalMaterial->createTechnique();
	gBufferTech->removeAllPasses();
	gBufferTech->setSchemeName(schemeName);

	Ogre::Technique* noGBufferTech = originalMaterial->createTechnique();
	noGBufferTech->removeAllPasses();
	noGBufferTech->setSchemeName("NoGBuffer");

	for (unsigned short i=0; i<originalTechnique->getNumPasses(); i++)
	{
		Ogre::Pass* originalPass = originalTechnique->getPass(i);
		PassProperties props = inspectPass(originalPass, lodIndex, rend);
		
		if (!props.isDeferred)
		{
			//Just copy the technique so it gets rendered regularly
			Ogre::Pass* clonePass = noGBufferTech->createPass();
			*clonePass = *originalPass;
			continue;
		}

		Ogre::Pass* newPass = gBufferTech->createPass();
		MaterialGenerator::Perm perm = getPermutation(props);

		const Ogre::MaterialPtr& templateMat = mMaterialGenerator.getMaterial(perm);
    	
		//We assume that the GBuffer technique contains only one pass. But its true.
		*newPass = *(templateMat->getTechnique(0)->getPass(0));
		fillPass(newPass, originalPass, props);    
	}
    
	return gBufferTech;
}

void RoR::SkinManager::ReplaceMaterialTextures(SkinDef* skin_def, std::string materialName) // Static
{
    const auto not_found = skin_def->replace_textures.end();
    Ogre::MaterialPtr mat = RoR::OgreSubsystem::GetMaterialByName(materialName);
    if (!mat.isNull())
    {
        for (int t = 0; t < mat->getNumTechniques(); t++)
        {
            Ogre::Technique* tech = mat->getTechnique(0);
            if (!tech)
                continue;
            for (int p = 0; p < tech->getNumPasses(); p++)
            {
                Ogre::Pass* pass = tech->getPass(p);
                if (!pass)
                    continue;
                for (int tu = 0; tu < pass->getNumTextureUnitStates(); tu++)
                {
                    Ogre::TextureUnitState* tus = pass->getTextureUnitState(tu);
                    if (!tus)
                        continue;

                    //if (tus->getTextureType() != TEX_TYPE_2D) continue; // only replace 2d images
                    // walk the frames, usually there is only one
                    for (unsigned int fr = 0; fr < tus->getNumFrames(); fr++)
                    {
                        Ogre::String textureName = tus->getFrameTextureName(fr);
                        std::map<Ogre::String, Ogre::String>::iterator it = skin_def->replace_textures.find(textureName);
                        if (it != not_found)
                        {
                            textureName = it->second; //getReplacementForTexture(textureName);
                            tus->setFrameTextureName(textureName, fr);
                        }
                    }
                }
            }
        }
    }
}

    void CompositionHandler::SetMaterialParameters(const Ogre::MaterialPtr &material, const QList< std::pair<std::string, Ogre::Vector4> > &source) const
    {
        assert (material.get());
        material->load();
        for(ushort t=0 ; t<material->getNumTechniques() ; ++t)
        {
            Ogre::Technique *technique = material->getTechnique(t);
            if (technique)
            {
                for(ushort p=0 ; p<technique->getNumPasses() ; ++p)
                {
                    Ogre::Pass *pass = technique->getPass(p);
                    if (pass)
                    {
                        if (pass->hasVertexProgram())
                        {
                            Ogre::GpuProgramParametersSharedPtr destination = pass->getVertexProgramParameters();
                            for(int i=0 ; i<source.size() ; ++i)
                            {
                                if (destination->_findNamedConstantDefinition(source[i].first, false))
                                    destination->setNamedConstant(source[i].first, source[i].second);
                            }

                        }
                        if (pass->hasFragmentProgram())
                        {
                            Ogre::GpuProgramParametersSharedPtr destination = pass->getFragmentProgramParameters();
                            for(int i=0 ; i<source.size() ; ++i)
                            {
                                if (destination->_findNamedConstantDefinition(source[i].first, false))
                                    destination->setNamedConstant(source[i].first, source[i].second);
                            }
                        }
                    }
                }
            }
        }
    }

//.........这里部分代码省略.........
	//		sscanf(szUserCameraValue.c_str(), "%f;%f", &(newNode.fCameraHeight), &(newNode.fCameraDistance));
	//	}
	int Row_Index;
	Row_Index = atoi(szUserCameraValue.c_str());

	const tDataBase* pDBC = g_pDataBase->GetDataBase(DBC_MODEL_PARAMETER);
	KLAssert(pDBC);
	const _DBC_MODEL_PARAMETER* pParameter = NULL;

	pParameter = (const _DBC_MODEL_PARAMETER*)((tDataBase*)pDBC)->Search_Index_EQU(Row_Index);

	if(pParameter)
	{
		newNode.fCameraHeight = pParameter->nHeight;
		newNode.fCameraDistance = pParameter->nDistance;
	}

	//设置摄像机
	_UpdateCamera(newNode);

	newNode.pCamera->setNearClipDistance(10.f);
	newNode.pCamera->setAspectRatio((float)nTexWidth/nTexHeight);
	newNode.pCamera->setFOVy(Ogre::Degree(45.0f));	// 经验值
	newNode.pCamera->setProjectionType(Ogre::PT_PERSPECTIVE);	//透视投影 (平行投影 Ogre::PT_ORTHOGRAPHIC)

	//--------------------------------------------------
	//创建ViewPort
	newNode.pViewPort = pTexture->addViewport(newNode.pCamera, 1);
	newNode.pViewPort->setClearEveryFrame(true);	
	newNode.pViewPort->setBackgroundColour(Ogre::ColourValue(0,0,0,0));
	newNode.pViewPort->setOverlaysEnabled(false);
	newNode.pViewPort->setSkiesEnabled(false);
	newNode.pViewPort->setShadowsEnabled(false);

	//--------------------------------------------------
	//创建rectangle(如果纹理名称不为空并且所需的material template存在)
	Ogre::String backgroundTexName(szBackgroundName);

	Ogre::MaterialPtr originMat = Ogre::MaterialManager::getSingleton().getByName("UIModelBackground");

	if (false == backgroundTexName.empty() && false == originMat.isNull())
	{
		newNode.pRectange = new Ogre::Rectangle2D(true);
		newNode.pRectange->setCorners(-1.0f, 1.0f, 1.0f, -1.0f);

		Ogre::String cloneMatName = Ogre::String(szNodeName) + "_Rectangle";
		Ogre::MaterialPtr cloneMat = Ogre::MaterialManager::getSingleton().getByName(cloneMatName);

		if (cloneMat.isNull())
		{
			cloneMat = originMat->clone(cloneMatName);

			if (cloneMat->getNumTechniques())
			{
				Ogre::Technique* tech = cloneMat->getTechnique(0);

				if (tech->getNumPasses())
				{
					Ogre::Pass* pass = tech->getPass(0);

					if (pass->getNumTextureUnitStates())
					{
						Ogre::TextureUnitState* tex = pass->getTextureUnitState(0);

						tex->setTextureName(szBackgroundName);
					}
				}
			}

		}  

		newNode.pRectange->setMaterial(cloneMat->getName());

		newNode.pRectange->setRenderQueueGroup(Ogre::RENDER_QUEUE_BACKGROUND);
		newNode.pRectange->setVisibilityFlags(Fairy::OVF_GUI_ELEMENTS);

		// 设置boundingbox为无限大，以防被camera剔除掉（默认的包围盒大小为-1，1）
		newNode.pRectange->setBoundingBox( 
			Ogre::AxisAlignedBox( 
			Ogre::Vector3(Ogre::Math::NEG_INFINITY, Ogre::Math::NEG_INFINITY, Ogre::Math::NEG_INFINITY),
			Ogre::Vector3(Ogre::Math::POS_INFINITY, Ogre::Math::POS_INFINITY, Ogre::Math::POS_INFINITY) 
			) );

		Ogre::SceneNode* parentNode = 
			CEngineInterface::GetMe()->GetFairySystem()->getBaseSceneNode()->createChildSceneNode();

		parentNode->attachObject(newNode.pRectange);
	}

	//--------------------------------------------------
	//加入Map
	m_mapObject.insert(std::make_pair(newNode.strName, newNode));

	it = m_mapObject.find(newNode.strName);
	KLAssert(it != m_mapObject.end());

	//加入索引Map
	m_mapIndexOfViewPort.insert(std::make_pair(newNode.pViewPort, &(it->second)));
	return it;
}