C++ PassIterator::hasMoreElements方法代码示例

void MaterialFactory::update()
{
	for (std::vector<std::string>::const_iterator it = timeMtrs.begin();
		it != timeMtrs.end(); ++it)
	{
		MaterialPtr mtr = MaterialManager::getSingleton().getByName( (*it) );

		if (!mtr.isNull())
		{	Material::TechniqueIterator techIt = mtr->getTechniqueIterator();
			while (techIt.hasMoreElements())
			{	Technique* tech = techIt.getNext();
				Technique::PassIterator passIt = tech->getPassIterator();
				while (passIt.hasMoreElements())
				{	Pass* pass = passIt.getNext();

					// time
					if (pass->hasFragmentProgram() && pass->getFragmentProgramParameters()->_findNamedConstantDefinition("time", false))
						pass->getFragmentProgramParameters()->setNamedConstantFromTime( "time", 1 );
				}
			}	
		}	
	}
}

    //-----------------------------------------------------------------------
    void RenderPriorityGroup::addSolidRenderable(Technique* pTech, 
        Renderable* rend, bool addToNoShadow)
    {
        Technique::PassIterator pi = pTech->getPassIterator();

        QueuedRenderableCollection* collection;
        if (addToNoShadow)
        {
            collection = &mSolidsNoShadowReceive;
        }
        else
        {
            collection = &mSolidsBasic;
        }


        while (pi.hasMoreElements())
        {
            // Insert into solid list
            Pass* p = pi.getNext();
            collection->addRenderable(p, rend);
        }
    }

bool OcclusionQuery::isPotentialOccluder(Ogre::SceneNode* node)
{
    bool result = false;
    for (unsigned int i=0; i < node->numAttachedObjects(); ++i)
    {
        MovableObject* ob = node->getAttachedObject(i);
        std::string type = ob->getMovableType();
        if (type == "Entity")
        {
            Entity* ent = static_cast<Entity*>(ob);
            for (unsigned int j=0; j < ent->getNumSubEntities(); ++j)
            {
                // if any sub entity has a material with depth write off,
                // consider the object as not an occluder
                MaterialPtr mat = ent->getSubEntity(j)->getMaterial();

                Material::TechniqueIterator techIt = mat->getTechniqueIterator();
                while (techIt.hasMoreElements())
                {
                    Technique* tech = techIt.getNext();
                    Technique::PassIterator passIt = tech->getPassIterator();
                    while (passIt.hasMoreElements())
                    {
                        Pass* pass = passIt.getNext();

                        if (pass->getDepthWriteEnabled() == false)
                            return false;
                        else
                            result = true;
                    }
                }
            }
        }
    }
    return result;
}

    //-----------------------------------------------------------------------
    void BspSceneManager::renderStaticGeometry(void)
    {
		// Check we should be rendering
		if (!isRenderQueueToBeProcessed(mWorldGeometryRenderQueue))
			return;

        // Cache vertex/face data first
		vector<StaticFaceGroup*>::type::const_iterator faceGrpi;
        static RenderOperation patchOp;
        
        // no world transform required
        mDestRenderSystem->_setWorldMatrix(Matrix4::IDENTITY);
        // Set view / proj
        setViewMatrix(mCachedViewMatrix);
        mDestRenderSystem->_setProjectionMatrix(mCameraInProgress->getProjectionMatrixRS());

        // For each material in turn, cache rendering data & render
        MaterialFaceGroupMap::const_iterator mati;

        for (mati = mMatFaceGroupMap.begin(); mati != mMatFaceGroupMap.end(); ++mati)
        {
            // Get Material
            Material* thisMaterial = mati->first;

            // Empty existing cache
            mRenderOp.indexData->indexCount = 0;
            // lock index buffer ready to receive data
            unsigned int* pIdx = static_cast<unsigned int*>(
                mRenderOp.indexData->indexBuffer->lock(HardwareBuffer::HBL_DISCARD));

            for (faceGrpi = mati->second.begin(); faceGrpi != mati->second.end(); ++faceGrpi)
            {
                // Cache each
                unsigned int numelems = cacheGeometry(pIdx, *faceGrpi);
                mRenderOp.indexData->indexCount += numelems;
                pIdx += numelems;
            }
            // Unlock the buffer
            mRenderOp.indexData->indexBuffer->unlock();

            // Skip if no faces to process (we're not doing flare types yet)
            if (mRenderOp.indexData->indexCount == 0)
                continue;

            Technique::PassIterator pit = thisMaterial->getTechnique(0)->getPassIterator();

            while (pit.hasMoreElements())
            {
                _setPass(pit.getNext());

                mDestRenderSystem->_render(mRenderOp);


            } 


        } // for each material

        /*
        if (mShowNodeAABs)
        {
            mDestRenderSystem->_render(mAABGeometry);
        }
        */
    }

void CompositorInstance::collectPasses(TargetOperation &finalState, CompositionTargetPass *target)
{
	/// Here, passes are converted into render target operations
    Pass *targetpass;
    Technique *srctech;
	MaterialPtr mat, srcmat;
	
    CompositionTargetPass::PassIterator it = target->getPassIterator();
    while(it.hasMoreElements())
    {
        CompositionPass *pass = it.getNext();
        switch(pass->getType())
        {
        case CompositionPass::PT_CLEAR:
			queueRenderSystemOp(finalState, new RSClearOperation(
				pass->getClearBuffers(),
				pass->getClearColour(),
				pass->getClearDepth(),
				pass->getClearStencil()
				));
            break;
		case CompositionPass::PT_STENCIL:
			queueRenderSystemOp(finalState, new RSStencilOperation(
				pass->getStencilCheck(),pass->getStencilFunc(), pass->getStencilRefValue(),
				pass->getStencilMask(), pass->getStencilFailOp(), pass->getStencilDepthFailOp(),
				pass->getStencilPassOp(), pass->getStencilTwoSidedOperation()
				));
            break;
        case CompositionPass::PT_RENDERSCENE:
			if(pass->getFirstRenderQueue() < finalState.currentQueueGroupID)
			{
				/// Mismatch -- warn user
				/// XXX We could support repeating the last queue, with some effort
				LogManager::getSingleton().logMessage("Warning in compilation of Compositor "
					+mCompositor->getName()+": Attempt to render queue "+
					StringConverter::toString(pass->getFirstRenderQueue())+" before "+
					StringConverter::toString(finalState.currentQueueGroupID));
			}
			/// Add render queues
			for(int x=pass->getFirstRenderQueue(); x<=pass->getLastRenderQueue(); ++x)
			{
				assert(x>=0);
				finalState.renderQueues.set(x);
			}
			finalState.currentQueueGroupID = pass->getLastRenderQueue()+1;
			finalState.findVisibleObjects = true;
			finalState.materialScheme = target->getMaterialScheme();

            break;
        case CompositionPass::PT_RENDERQUAD:
            srcmat = pass->getMaterial();
			if(srcmat.isNull())
            {
                /// No material -- warn user
				LogManager::getSingleton().logMessage("Warning in compilation of Compositor "
					+mCompositor->getName()+": No material defined for composition pass");
                break;
            }
			srcmat->compile();
			if(srcmat->getNumSupportedTechniques()==0)  
			{
				/// No supported techniques -- warn user
				LogManager::getSingleton().logMessage("Warning in compilation of Compositor "
					+mCompositor->getName()+": material "+srcmat->getName()+" has no supported techniques");
                break;
			}
			srctech = srcmat->getBestTechnique(0);
			/// Create local material
			MaterialPtr mat = createLocalMaterial();
			/// Copy and adapt passes from source material
			Technique::PassIterator i = srctech->getPassIterator();
			while(i.hasMoreElements())
			{
				Pass *srcpass = i.getNext();
				/// Create new target pass
				targetpass = mat->getTechnique(0)->createPass();
				(*targetpass) = (*srcpass);
				/// Set up inputs
				for(size_t x=0; x<pass->getNumInputs(); ++x)
				{
					String inp = pass->getInput(x);
					if(!inp.empty())
					{
						if(x < targetpass->getNumTextureUnitStates())
						{
							targetpass->getTextureUnitState((ushort)x)->setTextureName(getSourceForTex(inp));
						} 
						else
						{
							/// Texture unit not there
							LogManager::getSingleton().logMessage("Warning in compilation of Compositor "
								+mCompositor->getName()+": material "+srcmat->getName()+" texture unit "
								+StringConverter::toString(x)+" out of bounds");
						}
					}
				}
			}
			queueRenderSystemOp(finalState, new RSQuadOperation(this,pass->getIdentifier(),mat));
            break;
        }
//.........这里部分代码省略.........

//.........这里部分代码省略.........

			OverlayContainer* debugPanel;
			
			// destroy container if exists
			try
			{
				if (debugPanel = 
					static_cast<OverlayContainer*>(
						mgr.getOverlayElement("Ogre/DebugTexPanel" + toStr(i)
					)))
					mgr.destroyOverlayElement(debugPanel);
			}
			catch (Ogre::Exception&) {}
			
			debugPanel = (OverlayContainer*)
				(OverlayManager::getSingleton().createOverlayElement("Panel", "Ogre/DebugTexPanel" + StringConverter::toString(i)));
			debugPanel->_setPosition(0.8, i*0.25);
			debugPanel->_setDimensions(0.2, 0.24);
			debugPanel->setMaterialName(debugMat->getName());
			debugPanel->show();
			overlay->add2D(debugPanel);
			overlay->show();
		}
		#endif
	}
	
	materialFactory->setNumShadowTex(num);
	materialFactory->setShadows(pSet->shadow_type != 0);
	materialFactory->setShadowsDepth(bDepth);
	materialFactory->generate();
	
	// set terrain lightmap texture and terrainWorldSize for all materials that need it
	if (terrain) // naive check if a game has been started already
	{
		for (std::vector<std::string>::const_iterator it = materialFactory->terrainLightMapMtrs.begin();
			it != materialFactory->terrainLightMapMtrs.end(); ++it)
		{
			MaterialPtr mtr = MaterialManager::getSingleton().getByName( (*it) );
			
			if (!mtr.isNull())
			{	Material::TechniqueIterator techIt = mtr->getTechniqueIterator();
				while (techIt.hasMoreElements())
				{	Technique* tech = techIt.getNext();
					Technique::PassIterator passIt = tech->getPassIterator();
					while (passIt.hasMoreElements())
					{	Pass* pass = passIt.getNext();
						Pass::TextureUnitStateIterator tusIt = pass->getTextureUnitStateIterator();
						while (tusIt.hasMoreElements())
						{
							TextureUnitState* tus = tusIt.getNext();
							if (tus->getName() == "terrainLightMap")
							{
								tus->setTextureName( terrain->getLightmap()->getName() );
								pass->getFragmentProgramParameters()->setNamedConstant( "terrainWorldSize", Real( sc.td.fTerWorldSize ) );
							}
						}
			}	}	}
		}
	}
	
	// -------------------   update the paged-geom materials
	
	// grass is not cloned, just need to set new shader parameters
	if (grass)
	{
		GrassLoader *grassLoader = static_cast<GrassLoader*>(grass->getPageLoader());
		for (std::list<GrassLayer*>::iterator it= grassLoader->getLayerList().begin();
			it != grassLoader->getLayerList().end(); ++it)
		{
			GrassLayer* layer = (*it);
			layer->applyShader();
		}
	}
	
	// trees are more complicated since they are cloned
	if(trees)
	{
		trees->reloadGeometry();
		std::vector<ResourcePtr> reosurceToDelete;
		ResourceManager::ResourceMapIterator it = MaterialManager::getSingleton().getResourceIterator();
		while (it.hasMoreElements())
		{
			ResourcePtr material = it.getNext();
			String materialName = material->getName();
			std::string::size_type pos =materialName.find("BatchMat|");
			if( pos != std::string::npos ) {
				reosurceToDelete.push_back(material);
			}
		}
		for(int i=0;i<reosurceToDelete.size();i++)
		{
			MaterialManager::getSingleton().remove(reosurceToDelete[i]);
		}
	}
	UpdPSSMMaterials();

	ti.update();	/// time
	float dt = ti.dt * 1000.f;
	LogO(String("::: Time Shadows: ") + toStr(dt) + " ms");
}

void CarReflection::Create()
{
	bFirstFrame = true;
	if (pSet->refl_mode == "single")  cubetexName = "ReflectionCube"; // single: use 1st cubemap
	else if (pSet->refl_mode == "full")
	{
		cubetexName = "ReflectionCube" + toStr(iIndex);
		// first cubemap: no index
		if (cubetexName == "ReflectionCube0")
			cubetexName = "ReflectionCube";
	}
	else /* static */
		cubetexName = "ReflectionCube";
	
	TextureManager* tm = TextureManager::getSingletonPtr();
	int size = ciShadowSizesA[pSet->refl_size];  // /2 ?

	//  create cube render texture
	if (! (pSet->refl_mode == "single" && iIndex != 0) )
	{
		cubetex = tm->createManual(cubetexName, 
			ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, TEX_TYPE_CUBE_MAP, 
			size,size, 0/*mips*/, PF_R8G8B8, TU_RENDERTARGET);
			//LogO("created rt cube");

		for (int face = 0; face < 6; face++)
		{
			Camera* mCam = pSceneMgr->createCamera("Reflect_" + toStr(iIndex) + "_" + toStr(face));
			mCam->setAspectRatio(1.0f);  mCam->setFOVy(Degree(90));
			mCam->setNearClipDistance(0.1);
			//mCam->setFarClipDistance(pSet->refl_dist);  //sky-

			RenderTarget* mRT = cubetex->getBuffer(face)->getRenderTarget();
			//LogO( "rt face Name: " + mRT->getName() );
			mRT->removeAllViewports();
			Viewport* vp = mRT->addViewport(mCam);
			vp->setOverlaysEnabled(false);
			vp->setVisibilityMask(RV_MaskReflect);
			mRT->setAutoUpdated(false);
			//mRT->addListener(this);  //-
			mCam->setPosition(Vector3::ZERO);

			Vector3 lookAt(0,0,0), up(0,0,0), right(0,0,0);  switch(face)
			{
				case 0:  lookAt.x =-1;  up.y = 1;  right.z = 1;  break;  // +X
				case 1:  lookAt.x = 1;  up.y = 1;  right.z =-1;  break;	 // -X
				case 2:  lookAt.y =-1;  up.z = 1;  right.x = 1;  break;	 // +Y
				case 3:  lookAt.y = 1;  up.z =-1;  right.x = 1;  break;	 // -Y
				case 4:  lookAt.z = 1;  up.y = 1;  right.x =-1;  break;	 // +Z
				case 5:  lookAt.z =-1;  up.y = 1;  right.x =-1;  break;	 // -Z
			}
			Quaternion orient( right, up, lookAt );  mCam->setOrientation( orient );
			pCams[face] = mCam;
			pRTs[face] = mRT;
		}
	}
	
	// Iterate through our materials and add an index to ReflectionCube texture reference
	for (int i=0; i < NumMaterials; i++)
	{
		MaterialPtr mtr = MaterialManager::getSingleton().getByName(sMtr[i]);
		if (!mtr.isNull())
		{	Material::TechniqueIterator techIt = mtr->getTechniqueIterator();
			while (techIt.hasMoreElements())
			{	Technique* tech = techIt.getNext();
				Technique::PassIterator passIt = tech->getPassIterator();
				while (passIt.hasMoreElements())
				{	Pass* pass = passIt.getNext();
					Pass::TextureUnitStateIterator tusIt = pass->getTextureUnitStateIterator();
					while (tusIt.hasMoreElements())
					{	
						TextureUnitState* tus = tusIt.getNext();
						if (tus->getTextureName() == "ReflectionCube")
							tus->setTextureName(cubetexName);
	}	}	}	}	}
}

//.........这里部分代码省略.........
			bool exists = false;
			shaderMap::iterator sit;
			for (sit = mShaderCache.begin();
				sit != mShaderCache.end(); ++sit)
			{
				if ( sit->second->isEqual( shaderProps ) )
				{
					exists = true;
					break;
				}
			}
			
			if (!exists)
				generator->mShaderCached = false;
			else
			{
				generator->mShaderCached = true;
				generator->mVertexProgram = sit->first.first;
				generator->mFragmentProgram = sit->first.second;
			}
						
			generator->mDef = (*it);
			generator->mShader = shaderProps;
			generator->generate();
			
			// insert into cache
			#ifdef USE_CACHE
			if (!exists)
			{
				if (!generator->mVertexProgram.isNull() && !generator->mFragmentProgram.isNull()) 
					mShaderCache[ std::make_pair(generator->mVertexProgram, generator->mFragmentProgram) ] = shaderProps;
				else
					delete shaderProps;
			}
			else
				delete shaderProps;
			#else
			delete shaderProps;
			#endif
		}
		
		bSettingsChanged = false;
		
		ti.update(); /// time
		float dt = ti.dt * 1000.f;
		LogO(String("::: Time MaterialFactory: ") + toStr(dt) + " ms");

		// recreate cloned car materials
		#ifndef ROAD_EDITOR
		pApp->recreateCarMtr();
		#endif
	}
	else
	{
		LogO("[MaterialFactory] settings not changed, using old materials");
	}
	
	
	// update params	
	for (std::vector<MaterialDefinition*>::iterator it=mDefinitions.begin();
		it!=mDefinitions.end(); ++it)
	{
		MaterialPtr mat = MaterialManager::getSingleton().getByName( (*it)->getName() );
		setShaderParams(mat);
	}
	
	#ifdef USE_CUSTOM_TERRAIN_MATERIAL
	// update terrain params
	if (!mTerrain) return;
	MaterialPtr terrainMat = mTerrain->_getMaterial();
	if (!terrainMat.isNull())
	{
		Material::TechniqueIterator techIt = terrainMat->getTechniqueIterator();
		while (techIt.hasMoreElements())
		{
			Technique* tech = techIt.getNext();
			Technique::PassIterator passIt = tech->getPassIterator();
			while (passIt.hasMoreElements())
			{
				Pass* pass = passIt.getNext();
				
				if (!pass->hasFragmentProgram()
				 || !pass->getFragmentProgramParameters()->_findNamedConstantDefinition("fadeStart_farDist", false)) continue;
				
				float fadeDist;
				if (mSceneMgr->getShadowFarDistance() != 0)
					fadeDist = getShadowsFadeDistance()/mSceneMgr->getShadowFarDistance();
				else
					fadeDist = 0.f;
																
				pass->getFragmentProgramParameters()->setNamedConstant("fadeStart_farDist", Vector3(
					fadeDist,
					mSceneMgr->getShadowFarDistance(),
					float(getShadowsFade())
				));
			}
		}
	}
	#endif
}

void MaterialFactory::setShaderParams(MaterialPtr mat)
{
	if (mat.isNull()) return;
		
	Material::TechniqueIterator techIt = mat->getTechniqueIterator();
	while (techIt.hasMoreElements())
	{
		Technique* tech = techIt.getNext();
		Technique::PassIterator passIt = tech->getPassIterator();
		while (passIt.hasMoreElements())
		{
			Pass* pass = passIt.getNext();
								
			if (pass->hasFragmentProgram())
			{
				// shadow fading parameters
				if ( getShadowsFade()
					&& pass->getFragmentProgramParameters()->_findNamedConstantDefinition("fadeStart_farDist", false)
					&& mSceneMgr
				)
				{
					float fadeDist;
					if (mSceneMgr->getShadowFarDistance() != 0)
						fadeDist = getShadowsFadeDistance()/mSceneMgr->getShadowFarDistance();
					else
						fadeDist = 0.f;
														
					pass->getFragmentProgramParameters()->setNamedConstant("fadeStart_farDist", Vector3(
						fadeDist,
						mSceneMgr->getShadowFarDistance(),
						float(getShadowsFade())
					));
				}
				// terrain lightmap name & size
				if ( mTerrain && !mTerrain->getLightmap().isNull() )
				{
					if (pass->getFragmentProgramParameters()->_findNamedConstantDefinition("terrainWorldSize", false))
						pass->getFragmentProgramParameters()->setNamedConstant( "terrainWorldSize", Real( mTerrain->getWorldSize() ) );
					
					Pass::TextureUnitStateIterator tusIt = pass->getTextureUnitStateIterator();
					while (tusIt.hasMoreElements())
					{
						TextureUnitState* tus = tusIt.getNext();
						if (tus->getName() == "terrainLightMap")
						{
							tus->setTextureName( mTerrain->getLightmap()->getName() );
						}
					}
				}
				
				if (pass->getFragmentProgramParameters()->_findNamedConstantDefinition("invTerSize", false))
					pass->getFragmentProgramParameters()->setNamedConstant("invTerSize", 1.f / Real(pApp->sc.td.fTerWorldSize));

				// pssm split points
				if ( pass->getFragmentProgramParameters()->_findNamedConstantDefinition("pssmSplitPoints", false) && mPSSM)
				{
					const PSSMShadowCameraSetup::SplitPointList& splitPointList = mPSSM->getSplitPoints();
					Vector4 splitPoints;
					for (size_t i = 0; i < splitPointList.size(); ++i)
						splitPoints[i] = splitPointList[i];
						
					pass->getFragmentProgramParameters()->setNamedConstant("pssmSplitPoints", splitPoints);
				}
			}
		}
	}
}