ogre 开发范例大全(3)

1.平面的创建

Ogre::Plane plane;
plane.normal = Ogre::Vector3::UNIT_Y;
plane.d = 100;
Ogre::MeshManager::getSingleton().createPlane("Myplane",
Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, plane,
    1500, 1500, 10, 10, true, 1, 5, 5, Ogre::Vector3::UNIT_Z);
Ogre::Entity* pPlaneEnt = mSceneMgr->createEntity( "plane", "Myplane" );
pPlaneEnt->setMaterialName("Examples/Rockwall");
pPlaneEnt->setCastShadows(false);
mSceneMgr->getRootSceneNode()->createChildSceneNode()->attachObject(pPlaneEnt);

2.开启阴影

mSceneMgr->setShadowTechnique(Ogre::SHADOWTYPE_TEXTURE_MODULATIVE);
		//灯光
		Ogre::Light* l = mSceneMgr->createLight("Light2");
		Ogre::Vector3 dir(-1,-1,0);
		dir.normalise();
		l->setType(Ogre::Light::LT_DIRECTIONAL);
		l->setPosition(Vector3(20,80,50));
		l->setDirection(dir);
		l->setDiffuseColour(1, 1, 0.8);
		l->setSpecularColour(1, 1, 1);
		//平面网格
		Ogre::Plane plane;
		plane.normal = Ogre::Vector3::UNIT_Y;
		plane.d = 100;
		Ogre::MeshManager::getSingleton().createPlane("Myplane",
			Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, plane,
			1500, 1500, 10, 10, true, 1, 5, 5, Ogre::Vector3::UNIT_Z);
		Ogre::Entity* pPlaneEnt = mSceneMgr->createEntity( "plane", "Myplane" );
		pPlaneEnt->setMaterialName("Examples/Rockwall");
		pPlaneEnt->setCastShadows(false);
		mSceneMgr->getRootSceneNode()->createChildSceneNode()->attachObject(pPlaneEnt);

		//天空盒
        mSceneMgr->setSkyBox(true, "Examples/SpaceSkyBox", 50 );
    /*    Light* l = mSceneMgr->createLight("MainLight");
        l->setPosition(20,80,50);*/
		//飞机
        Entity *ent = mSceneMgr->createEntity( "razor", "razor.mesh" );
        mSceneMgr->getRootSceneNode()->attachObject( ent );
		ent->setCastShadows(true);

 3.节点动画

Animation* anim = mSceneMgr->createAnimation("LightTrack", 20);
		anim->setInterpolationMode(Animation::IM_SPLINE);
		NodeAnimationTrack* track = anim->createNodeTrack(0, mLightNode);
		TransformKeyFrame* key = track->createNodeKeyFrame(0); // A startposition
		key->setTranslate(Vector3(300,550,-300));
		key = track->createNodeKeyFrame(2);//B
		key->setTranslate(Vector3(150,600,-250));
		key = track->createNodeKeyFrame(4);//C
		key->setTranslate(Vector3(-150,650,-100));
		key = track->createNodeKeyFrame(6);//D
		key->setTranslate(Vector3(-400,500,-200));
		key = track->createNodeKeyFrame(8);//E
		key->setTranslate(Vector3(-200,500,-400));
		key = track->createNodeKeyFrame(10);//F
		key->setTranslate(Vector3(-100,450,-200));
		key = track->createNodeKeyFrame(12);//G
		key->setTranslate(Vector3(-100,400,180));
		key = track->createNodeKeyFrame(14);//H
		key->setTranslate(Vector3(0,250,600));
		key = track->createNodeKeyFrame(16);//I
		key->setTranslate(Vector3(100,650,100));
		key = track->createNodeKeyFrame(18);//J
		key->setTranslate(Vector3(250,600,0));
		key = track->createNodeKeyFrame(20);//K == A
		key->setTranslate(Vector3(300,550,-300));
		mAnimState = mSceneMgr->createAnimationState("LightTrack");
		mAnimState->setEnabled(true);

		mAnimState->addTime(evt.timeSinceLastFrame);

4.控制广告牌大小

Real mMinFlareSize = 40;
Real mMaxFlareSize = 80;
class LightWibbler : public ControllerValue<Real>
{
protected:
	Billboard* mBillboard;
	Real mMinSize;
	Real mSizeRange;
	Real intensity;
public:
	LightWibbler(Billboard* billboard, Real minSize, Real maxSize)
	{
		mBillboard = billboard;
		mMinSize = minSize;
		mSizeRange = maxSize-minSize;
	}

	virtual Real  getValue (void) const
	{
		return intensity;
	}
	virtual void  setValue (Real value)
	{
		intensity = value;
		ColourValue newColour;
		// set billboard size
		Real newSize = mMinSize + (intensity * mSizeRange);
		mBillboard->setDimensions(newSize, newSize);
	}
};

		ControllerFunctionRealPtr func = ControllerFunctionRealPtr(new WaveformControllerFunction(Ogre::WFT_SINE, 0.0, 0.5));
		ControllerValueRealPtr val = ControllerValueRealPtr(new LightWibbler(bb,mMinFlareSize,mMaxFlareSize));
		ControllerManager& contMgr=ControllerManager::getSingleton();
		contMgr.createController(contMgr.getFrameTimeSource(),val,func);

 

4.设置绸带

		NameValuePairList pairList;
		pairList["numberOfChains"] = "2";
		pairList["maxElements"] = "80";
		RibbonTrail* trail = static_cast<RibbonTrail*>(mSceneMgr->createMovableObject("1", "RibbonTrail", &pairList));
		mSceneMgr->getRootSceneNode()->createChildSceneNode()->attachObject(trail);

		trail->setMaterialName("Examples/LightRibbonTrail");
		trail->setTrailLength(400);
		trail->setInitialColour(0, 1.0, 0.8, 0);
		trail->setColourChange(0, 0.5, 0.5, 0.5, 0.5);
		trail->setInitialWidth(0, 5);
		trail->addNode(mLightNode);