C++ PassIterator::getNext方法代码示例

String OgreSample13App::buildInstancedMaterial(const String &originalMaterialName)
{
	if (StringUtil::endsWith(originalMaterialName,"/instanced"))
	{
		return originalMaterialName;
	}

	MaterialPtr originalMaterial = MaterialManager::getSingleton().getByName(originalMaterialName);
	const String instancedMaterialName(originalMaterial.isNull() ? "Instancing" : originalMaterialName + "/Instanced");
	MaterialPtr instancedMaterial = MaterialManager::getSingleton().getByName(instancedMaterialName);
	if (instancedMaterial.isNull())
	{
		instancedMaterial = originalMaterial->clone(instancedMaterialName);
		instancedMaterial->load();
		Technique::PassIterator pIt = instancedMaterial->getBestTechnique()->getPassIterator();
		while(pIt.hasMoreElements())
		{
			Pass * const p = pIt.getNext();
			p->setVertexProgram("Instancing",false);
			p->setShadowCasterVertexProgram("InstancingShadowCaster");
		}
	}
	instancedMaterial->load();
	return instancedMaterialName;
}

	virtual void execute(SceneManager *sm, RenderSystem *rs)
	{
		// Fire listener
		instance->_fireNotifyMaterialRender(pass_id, mat);

        Rectangle2D * mRectangle=static_cast<Rectangle2D *>(CompositorManager::getSingleton()._getTexturedRectangle2D());
        if (mQuadCornerModified)
        {
            // insure positions are using peculiar render system offsets 
            RenderSystem* rs = Root::getSingleton().getRenderSystem();
            Viewport* vp = rs->_getViewport();
            Real hOffset = rs->getHorizontalTexelOffset() / (0.5 * vp->getActualWidth());
            Real vOffset = rs->getVerticalTexelOffset() / (0.5 * vp->getActualHeight());
            mRectangle->setCorners(mQuadLeft + hOffset, mQuadTop - vOffset, mQuadRight + hOffset, mQuadBottom - vOffset);
        }
        
		// Queue passes from mat
		Technique::PassIterator i = technique->getPassIterator();
		while(i.hasMoreElements())
		{
			sm->_injectRenderWithPass(
				i.getNext(), 
				mRectangle,
				false // don't allow replacement of shadow passes
				);
		}
	}

void CarModel::ChangeClr()
{
	int i = iColor;
	float c_h = pSet->gui.car_hue[i], c_s = pSet->gui.car_sat[i],
	      c_v = pSet->gui.car_val[i], gloss = pSet->gui.car_gloss[i], refl = pSet->gui.car_refl[i];
	color.setHSB(1-c_h, c_s, c_v);  //set, mini pos clr

	MaterialPtr mtr = MaterialManager::getSingleton().getByName(sMtr[Mtr_CarBody]);
	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();
				if (pass->hasFragmentProgram())
				{
					GpuProgramParametersSharedPtr params = pass->getFragmentProgramParameters();
					params->setNamedConstant("carColour", color);
					params->setNamedConstant("glossiness", 1 - gloss);
					params->setNamedConstant("reflectiveness", refl);
	}	}	}	}

	if (pNickTxt)
		pNickTxt->setTextColour(MyGUI::Colour(color.r,color.g,color.b));
	
	// opp list text and mini pos colors - auto in hud update
}

void MaterialFactory::setShadowsEnabled(bool bEnable)
{
	for (std::vector<MaterialDefinition*>::iterator it=mDefinitions.begin();
		it!=mDefinitions.end(); ++it)
	{
		MaterialPtr mat = MaterialManager::getSingleton().getByName( (*it)->getName() );
			
		if (mat.isNull()) continue;
		
		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())
				{
					if ( pass->getFragmentProgramParameters()->_findNamedConstantDefinition("enableShadows", false))
						pass->getFragmentProgramParameters()->setNamedConstant("enableShadows", Real(bEnable));
				}
			}
		}
		
	}
}

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

        while (pi.hasMoreElements())
        {
            // Insert into transparent list
            mTransparents.addRenderable(pi.getNext(), rend);
        }
    }

void MaterialInstance::setSceneBlending (SceneBlendType sbt) {
  mSBT = sbt;

  if (!mCopyMat.isNull ()) {
    Material::TechniqueIterator techniqueIt = mCopyMat->getTechniqueIterator ();
    while (techniqueIt.hasMoreElements ()) {
      Technique *t = techniqueIt.getNext ();
      Technique::PassIterator passIt = t->getPassIterator ();
      while (passIt.hasMoreElements ()) {
        passIt.getNext ()->setSceneBlending (mSBT);
      }
    }
  }
}

	virtual void execute(SceneManager *sm, RenderSystem *rs)
	{
		// Fire listener
		instance->_fireNotifyMaterialRender(pass_id, mat);
		// Queue passes from mat
		Technique::PassIterator i = technique->getPassIterator();
		while(i.hasMoreElements())
		{
			sm->_injectRenderWithPass(
				i.getNext(), 
				CompositorManager::getSingleton()._getTexturedRectangle2D(),
				false // don't allow replacement of shadow passes
				);
		}
	}

//-------------------------------------------------------------------------------------------------------
//  utility
//-------------------------------------------------------------------------------------------------------
void CarModel::UpdateLightMap()
{
	MaterialPtr mtr;
	for (int i=0; i < NumMaterials; ++i)
	{
		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();
					if (pass->hasFragmentProgram())
					{
						GpuProgramParametersSharedPtr params = pass->getFragmentProgramParameters();
						params->setIgnoreMissingParams(true);  // don't throw exception if material doesnt use lightmap
						params->setNamedConstant("enableTerrainLightMap", bLightMapEnabled ? 1.f : 0.f);
	}	}	}	}	}
}

void CarModel::UpdateBraking()
{
	if (brakes)
		brakes->setVisible(bBraking && mbVisible);

	std::string texName = sDirname + (bBraking ? "_body00_brake.png" : "_body00_add.png");

	MaterialPtr mtr = MaterialManager::getSingleton().getByName(sMtr[Mtr_CarBody]);
	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() == "diffuseMap")
					{	tus->setTextureName( texName );  return;  }
	}	}	}	}
}

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

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 );
				}
			}	
		}	
	}
}

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.........
			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
}