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

	//--------------------------------------------------------------------------------
	void MaterialUtil::correctAlpha(const MaterialPtr& _material)
	{
		if(isPortal(_material) || isGhostOccluder(_material))
		{
			// create fully transparent material
			Material::TechniqueIterator it = _material->getTechniqueIterator();
			while(it.hasMoreElements())
			{
				Technique* technique = it.getNext();
				Technique::PassIterator it2 = technique->getPassIterator();
				while(it2.hasMoreElements())
				{
					Pass* pass = it2.getNext();
					pass->setAlphaRejectFunction(Ogre::CMPF_ALWAYS_FAIL);
				}
			}
		}
		else
		{
			Material::TechniqueIterator it = _material->getTechniqueIterator();
			while(it.hasMoreElements())
			{
				Technique* technique = it.getNext();
				Technique::PassIterator it2 = technique->getPassIterator();
				while(it2.hasMoreElements())
				{
					Pass* pass = it2.getNext();
					pass->setAlphaRejectFunction(Ogre::CMPF_GREATER);
					pass->setAlphaRejectValue(220);
				}
			}
			_material->setReceiveShadows(true);
		}
	}

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 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 MaterialInstance::setColor(float red, float green, float blue, float alpha)
{
    if (mCopyMat.isNull ()) {
      createCopyMaterial ();
    }
	unsigned short i = 0, j;
	ColourValue sc, dc; // Source colur, destination colour
	Material::TechniqueIterator techniqueIt = mCopyMat->getTechniqueIterator ();
	while (techniqueIt.hasMoreElements ()) 
	{
		Technique *t = techniqueIt.getNext ();
		Technique::PassIterator passIt = t->getPassIterator ();
		j = 0;
		while (passIt.hasMoreElements ()) 
		{
			sc = mOriginalMat->getTechnique (i)->getPass (j)->getDiffuse ();

			dc = sc;

			dc.a = alpha;
			dc.r = red;
			dc.g = green;
			dc.b = blue;
            passIt.peekNext ()->setAmbient (mOriginalMat->getTechnique (i)->getPass (j)->getAmbient ());
			passIt.peekNext ()->setDiffuse (dc);
			passIt.moveNext ();

			++j;
		}

		++i;
	}
}

void MaterialInstance::ChangeOriginalMaterial()
{
    if (mCopyMat.isNull ()) {
      createCopyMaterial ();
    }
	unsigned short i = 0, j;
	ColourValue sc, dc; // Source colur, destination colour
	Material::TechniqueIterator techniqueIt = mCopyMat->getTechniqueIterator ();
	while (techniqueIt.hasMoreElements ()) 
	{
		Technique *t = techniqueIt.getNext ();
		Technique::PassIterator passIt = t->getPassIterator ();
		j = 0;
		while (passIt.hasMoreElements ()) 
		{
			sc = mOriginalMat->getTechnique (i)->getPass (j)->getDiffuse ();

            passIt.peekNext ()->setAmbient (mOriginalMat->getTechnique (i)->getPass (j)->getAmbient ());
			passIt.peekNext ()->setDiffuse (sc);
			passIt.moveNext ();

			++j;
		}

		++i;
	}
}

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);
      }
    }
  }
}

void MaterialInstance::setTransparency (Real transparency) {
  mCurrentTransparency = transparency;
  if (mCurrentTransparency > 0.0f) {
    if (mCurrentTransparency > 1.0f)
      mCurrentTransparency = 1.0f;
    
    if (mCopyMat.isNull ()) {
      createCopyMaterial ();
    }
      
    unsigned short i = 0, j;
    ColourValue sc, dc; // Source colur, destination colour
    Material::TechniqueIterator techniqueIt = mCopyMat->getTechniqueIterator ();
    while (techniqueIt.hasMoreElements ()) {
      Technique *t = techniqueIt.getNext ();
      Technique::PassIterator passIt = t->getPassIterator ();
      j = 0;
      while (passIt.hasMoreElements ()) {
        sc = mOriginalMat->getTechnique (i)->getPass (j)->getDiffuse ();

        switch (mSBT) {
          case SBT_ADD:
            dc = sc;
            dc.r -= sc.r * mCurrentTransparency;
            dc.g -= sc.g * mCurrentTransparency;
            dc.b -= sc.b * mCurrentTransparency;
            passIt.peekNext ()->setAmbient (ColourValue::Black);
            break;
          case SBT_TRANSPARENT_ALPHA:
          default:
            dc = sc;
            dc.a = sc.a * (1.0f - mCurrentTransparency);
            passIt.peekNext ()->setAmbient (mOriginalMat->getTechnique (i)->getPass (j)->getAmbient ());
            break;
        }
        passIt.peekNext ()->setDiffuse (dc);
        passIt.moveNext ();
            
        ++j;
      }
          
      ++i;
    }
  }
  else {
    mCurrentTransparency = 0.0f;
  }
}

void MaterialInstance::createCopyMaterial () {
	String name;
	// Avoid name collision
	do {
		name = mOriginalMat->getName () + StringConverter::toString (Math::UnitRandom ());
	} while (MaterialManager::getSingleton ().resourceExists (name));

	mCopyMat = mOriginalMat->clone (name);

	Material::TechniqueIterator techniqueIt = mCopyMat->getTechniqueIterator ();
	while (techniqueIt.hasMoreElements ()) {
		Technique *t = techniqueIt.getNext ();
		Technique::PassIterator passIt = t->getPassIterator ();
		while (passIt.hasMoreElements ()) {
			passIt.peekNext ()->setDepthWriteEnabled (false);
			passIt.peekNext ()->setSceneBlending (mSBT);
			passIt.moveNext ();
		}
	}
}

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

//===========================================================================
// MaterialPassAction
//===========================================================================
void IMaterialPassAction::subEntityAction( SubEntityMaterial* subEntity ) const
{
  if( !subEntity->getMaterial().isNull() )
  {
    unsigned short i = 0 ;
    for( Material::TechniqueIterator techniqueIt = subEntity->getMaterial()->getTechniqueIterator() ;
         techniqueIt.hasMoreElements() ;
         techniqueIt.moveNext(), ++i )
    {
      Technique* techniqueScr = subEntity->getMaterial()->getTechnique( i ) ;
      unsigned short j = 0;
      for( Technique::PassIterator passIt = techniqueIt.peekNext()->getPassIterator ();
           passIt.hasMoreElements() ;
           passIt.moveNext(), ++j )
      {
        passAction( subEntity, passIt.peekNext(), techniqueScr->getPass( j ) ) ;
      }
    }
  }
}

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 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 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);
				}
			}
		}
	}
}

//.........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");
}