//lightTest.hclass lightTest : public Layer{public: CREATE_FUNC(lightTest); lighttest(); virtual ~lighttest(); virtual voID update(float delta); voID Switchlight(Ref* sender,lightType lightType);//转换光源 private: voID addSprite();//添加精灵 voID addlights();//添加光源 private: AmbIEntlight *_ambIEntlight; //环境光，想四周发射光线，模拟一个屋子的环境，光线来源方向不定。 Directionlight *_directionallight; //方向光，表示一个非常远的光源，投射光线是平行的，用来模拟太阳光 Pointlight *_pointlight; //点光，从空间某点向四周均匀发射有限长的光线，用来模拟向四周发射状的光 Spotlight *_spotlight; //聚光，从某点发射一个圆锥形状，用来模拟台灯 Label *_ambIEntlightLabel; Label *_directionallightLabel; Label *_pointlightLabel; Label *_spotlightLabel;}; 2、Cpp文件 #include "lightTest.h"//构造函数，初始化除环境光AmbIEntlight之外的三种光为nullptrlightTest::lighttest(): _directionallight(nullptr),_pointlight(nullptr),_spotlight(nullptr){ addSprite();//添加精灵 addlights();//添加光源 scheduleUpdate();//帧更新 //设置摄像机位置 auto s = Director::getInstance()->getWinSize(); //参数1:透视相机的视野，通常在40-60度范围 //参数2:相机的长宽比，通常视窗的宽度除以视窗的高度 //参数3:近点平面距离 //参数4:原点平面距离 auto camera = Camera::createPerspective(60,(GLfloat)s.wIDth/s.height,1.0f,1000.0f); camera->setCameraFlag(CameraFlag::USER1);//设置相机Flag camera->setposition3D(Vec3(0.0,100,100));//设置相机3D坐标 //参数1:目标的中心位置，参数2:向上的向量 camera->lookAt(Vec3(0.0,0.0,0.0),Vec3(0.0,1.0,0.0)); addChild(camera); //添加相机转换的开光，Label控件 TTFConfig ttfConfig("Fonts/arial.ttf",30); _ambIEntlightLabel = Label::createWithTTF(ttfConfig,"AmbIEnt light ON"); _ambIEntlightLabel->retain(); auto menuItem0 = MenuItemLabel::create(_ambIEntlightLabel,CC_CALLBACK_1(lightTest::Switchlight,this,lightType::AMBIENT)); _directionallightLabel = Label::createWithTTF(ttfConfig,"Directional light OFF"); _directionallightLabel->retain(); auto menuItem1 = MenuItemLabel::create(_directionallightLabel,lightType::DIRECTIONAL)); _pointlightLabel = Label::createWithTTF(ttfConfig,"Point light OFF"); _pointlightLabel->retain(); auto menuItem2 = MenuItemLabel::create(_pointlightLabel,lightType::POINT)); _spotlightLabel = Label::createWithTTF(ttfConfig,"Spot light OFF"); _spotlightLabel->retain(); auto menuItem3 = MenuItemLabel::create(_spotlightLabel,lightType::SPOT)); auto menu = Menu::create(menuItem0,menuItem1,menuItem2,menuItem3,nullptr); menu->setposition(Vec2::ZERO); menuItem0->setAnchorPoint(Vec2::ANCHOR_top_left); menuItem0->setposition( Vec2(VisibleRect::left().x,VisibleRect::top().y-50) ); menuItem1->setAnchorPoint(Vec2::ANCHOR_top_left); menuItem1->setposition( Vec2(VisibleRect::left().x,VisibleRect::top().y-100) ); menuItem2->setAnchorPoint(Vec2::ANCHOR_top_left); menuItem2->setposition( Vec2(VisibleRect::left().x,VisibleRect::top().y -150)); menuItem3->setAnchorPoint(Vec2::ANCHOR_top_left); menuItem3->setposition( Vec2(VisibleRect::left().x,VisibleRect::top().y -200)); addChild(menu);}//析构资源lightTest::~lighttest(){ if (_spotlightLabel) _spotlightLabel->release(); if (_pointlightLabel) _pointlightLabel->release(); if (_directionallightLabel) _directionallightLabel->release(); if (_spotlight) _spotlight->release(); if (_pointlight) _pointlight->release(); if (_directionallight) _directionallight->release(); if (_ambIEntlight) _ambIEntlight->release();}//添加精灵voID lightTest::addSprite(){ auto s = Director::getInstance()->getWinSize(); { //创建3D对象，c3b是二进制文件，通过FBX模型文件进行二次转换得到。 //obj:FBX是一种通用导出格式，可通过maya和max导出，maya和max默认导出obj格式文件。 //c3t:通过FBX模型文件转换后生成的Json文件，体积大载入慢，不提倡使用 //c3b:二进制文件，数据内容与c3t一样，体积小，速度快，提倡使用 //注意:.c3b文件的使用需和它对应的贴图拷贝到Resource目录下，否则，运行时找不到资源。 std::string filename = "orc.c3b"; //创建3D精灵对象 auto sprite = Sprite3D::create(filename); sprite->setRotation3D(Vec3(0.0,180.0,0.0)); sprite->setposition(Vec2(0.0,0.0)); sprite->setScale(2.0); //创建3D精灵对象 auto sp = Sprite3D::create("axe.c3b"); //通过骨骼名称获得连接点 sprite->getAttachNode("Bip001 R Hand")->addChild(sp); //创建3D动画 auto animation = Animation3D::create(filename); if (animation) { auto animate = Animate3D::create(animation); sprite->runAction(RepeatForever::create(animate));//3D精灵执行3D动画 } addChild(sprite); //设置精灵的Mask，该值与相机的flag进行&运算为真，则对相机可见 sprite->setCameraMask(2); } { //同上 std::string filename = "sphere.c3b"; auto sprite = Sprite3D::create(filename); sprite->setposition(Vec2(30.0,0.0)); addChild(sprite); sprite->setCameraMask(2); } { //同上 std::string filename = "sphere.c3b"; auto sprite = Sprite3D::create(filename); sprite->setScale(0.5f); sprite->setposition(Vec2(-50.0,0.0)); addChild(sprite); sprite->setCameraMask(2); } { //同上 std::string filename = "sphere.c3b"; auto sprite = Sprite3D::create(filename); sprite->setScale(0.5f); sprite->setposition(Vec2(-30.0,10.0)); addChild(sprite); sprite->setCameraMask(2); }}//添加光源voID lightTest::addlights(){ auto s = Director::getInstance()->getWinSize(); //环境光 _ambIEntlight = AmbIEntlight::create(color3B(200,200,200)); _ambIEntlight->retain(); _ambIEntlight->setEnabled(true);//开启光源 addChild(_ambIEntlight); _ambIEntlight->setCameraMask(2);//确保相机可见 //方向光，参数1:光源方向.参数2:光源颜色 _directionallight = Directionlight::create(Vec3(-1.0f,-1.0f,0.0f),color3B(200,200)); _directionallight->retain(); _directionallight->setEnabled(false);//光源关闭 addChild(_directionallight); _directionallight->setCameraMask(2);//确保相机可见 //点光，参数1:光源的位置，参数2:光源的颜色。参数3:光源范围 _pointlight = Pointlight::create(Vec3(0.0f,0.0f,200),10000.0f); _pointlight->retain(); _pointlight->setEnabled(false);//光源关闭 addChild(_pointlight); _pointlight->setCameraMask(2);//确保相机可见 //聚光，参数1:方向。参数2:位置。参数3:颜色，参数4:内圆弧度。参数5:外圆弧度。参数6:光源范围 _spotlight = Spotlight::create(Vec3(-1.0f,Vec3(0.0f,0.5,10000.0f); _spotlight->retain(); _spotlight->setEnabled(false);//光源关闭 addChild(_spotlight); _spotlight->setCameraMask(2);//确保相机可见 { auto tintto1 = TintTo::create(4,255); auto tintto2 = TintTo::create(4,255,0); auto tintto3 = TintTo::create(4,0); auto tintto4 = TintTo::create(4,255); auto seq = Sequence::create(tintto1,tintto2,tintto3,tintto4,nullptr); _ambIEntlight->runAction(RepeatForever::create(seq));//光源执行渐隐动作 } { auto tintto1 = TintTo::create(4,0); auto tintto2 = TintTo::create(4,255); auto tintto4 = TintTo::create(4,nullptr); _directionallight->runAction(RepeatForever::create(seq));//光源执行渐隐动作 } { auto tintto1 = TintTo::create(4,255); auto seq = Sequence::create(tintto2,tintto1,nullptr); _pointlight->runAction(RepeatForever::create(seq));//光源执行渐隐动作 } { auto tintto1 = TintTo::create(4,255); auto seq = Sequence::create(tintto3,nullptr); _spotlight->runAction(RepeatForever::create(seq));//光源执行渐隐动作 }}//帧更新voID lightTest::update( float delta ){ static float angleDelta = 0.0; if (_directionallight) { _directionallight->setRotation3D(Vec3(-45.0,-CC_radians_TO_degrees(angleDelta),0.0f));//设置旋转角度，宏是弧度转化为角度 } //cosf与sinf：float版的cos和sin if (_pointlight) { _pointlight->setpositionX(100.0f * cosf(angleDelta + 2.0 * delta)); _pointlight->setpositionY(100.0f); _pointlight->setpositionZ(100.0f * sinf(angleDelta + 2.0 * delta)); } if (_spotlight) { _spotlight->setpositionX(100.0f * cosf(angleDelta + 4.0 * delta)); _spotlight->setpositionY(100.0f); _spotlight->setpositionZ(100.0f * sinf(angleDelta + 4.0 * delta)); _spotlight->setDirection(-Vec3(cosf(angleDelta + 4.0 * delta),sinf(angleDelta + 4.0 * delta))); } angleDelta += delta; // update(delta);}//光源开关voID lightTest::Switchlight( Ref* sender,lightType lightType ){ switch (lightType) { case lightType::AMBIENT: { char str[32]; bool isON = !_ambIEntlight->isEnabled(); sprintf(str,"AmbIEnt light %s",isON == true? "ON":"OFF"); _ambIEntlight->setEnabled(isON); _ambIEntlightLabel->setString(str); } break; case lightType::DIRECTIONAL: { char str[32]; bool isON = !_directionallight->isEnabled(); sprintf(str,"Directional light %s",isON == true? "ON":"OFF"); _directionallight->setEnabled(isON); _directionallightLabel->setString(str); } break; case lightType::POINT: { char str[32]; bool isON = !_pointlight->isEnabled(); sprintf(str,"Point light %s",isON == true? "ON":"OFF"); _pointlight->setEnabled(isON); _pointlightLabel->setString(str); } break; case lightType::SPOT: { char str[32]; bool isON = !_spotlight->isEnabled(); sprintf(str,"Spot light %s",isON == true? "ON":"OFF"); _spotlight->setEnabled(isON); _spotlightLabel->setString(str); } break; default: break; }} 3、使用 在HelloWorldScene.cpp中的 createScene()中，创建lightTest的对象，加入Scene 总结 以上是内存溢出为你收集整理的Cocos2d-x3.3RC0之LightTest分析全部内容，希望文章能够帮你解决Cocos2d-x3.3RC0之LightTest分析所遇到的程序开发问题。
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