Ogre 2011-11-27
创建平面，点光源
class MyApplication :public ExampleApplication
{
public:
void createScene()
{
// 定义一个平面
// 参数1 平面的单位法线
// 参数2 平面距离原点的距离
Ogre::Plane plane(Ogre::Vector3::UNIT_Y, -200);
// 利用定义的平面创建一个平面网格
// 参数1 平面的名字；网格资源的名字
// 参数2 资源组，如同c++中的命名空间
// 参数3 平面的定义
// 参数4,5 平面的大小
// 参数6,7 平面的x，y轴上由多少个三角形组成
// param8 normals If true, normals are created perpendicular to the plane
// param9 numTexCoordSets The number of 2D texture coordinate sets created -
// by default the corners are created to be the corner of the texture.
Ogre::MeshManager::getSingleton().createPlane("plane",
ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
plane, 1500, 1500, 20, 20,
true, 1, 5, 5, Vector3::UNIT_Z
);
// 参数1 实体的名字
// 参数2 创建实体用的网格的名字
Ogre::Entity* ent = mSceneMgr->createEntity("lightpalneentity", "plane");
mSceneMgr->getRootSceneNode()->createChildSceneNode()->attachObject(ent);
ent->setMaterialName("Examples/BeachStones");
Ogre::SceneNode* node = mSceneMgr->createSceneNode("node1");
mSceneMgr->getRootSceneNode()->addChild(node);
// 创建点光源
Ogre::Light* light1 = mSceneMgr->createLight("light1");
light1->setType(Ogre::Light::LT_POINT);
light1->setPosition(0, 20, 0);
light1->setDiffuseColour(1.0f, 1.0f, 1.0f);
// 将创建的实体设置在点光源的位置
Ogre::Entity* lightEnt = mSceneMgr->createEntity("myentity", "sphere.mesh");
Ogre::SceneNode* node3 = node->createChildSceneNode("node3");
node3->setScale(0.1f, 0.1f, 0.1f);
node3->setPosition(0, 20, 0);
node3->attachObject(lightEnt);
// 创建点光源2
Ogre::Light* light2 = mSceneMgr->createLight("light2");
light2->setType(Ogre::Light::LT_POINT);
light2->setPosition(20, 20,20);
light2->setDiffuseColour(1.0f, 0.0f, 0.0f);
// 将创建的实体设置在点光源2的位置
Ogre::Entity* lightEnt2 = mSceneMgr->createEntity("myentity2", "sphere.mesh");
Ogre::SceneNode* node4 = node->createChildSceneNode("node4");
node4->setScale(0.1f, 0.1f, 0.1f);
node4->setPosition(20, 20, 20);
node4->attachObject(lightEnt2);
}
private:
};
spotlight
class MyApplication :public ExampleApplication
{
public:
void createScene()
{
Ogre::Plane plane(Ogre::Vector3::UNIT_Y, -200);
Ogre::MeshManager::getSingleton().createPlane("plane",
ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
plane, 1500, 1500, 200, 200,
true, 1, 5, 5, Vector3::UNIT_Z
);
Ogre::Entity* ent = mSceneMgr->createEntity("lightpalneentity", "plane");
mSceneMgr->getRootSceneNode()->createChildSceneNode()->attachObject(ent);
ent->setMaterialName("Examples/BeachStones");
Ogre::SceneNode* node = mSceneMgr->createSceneNode("node1");
mSceneMgr->getRootSceneNode()->addChild(node);
Ogre::SceneNode* node2 = node->createChildSceneNode("node2");
node2->setPosition(0, 100, 0);
Ogre::Light* light2 = mSceneMgr->createLight("light2");
light2->setType(Ogre::Light::LT_SPOTLIGHT);
light2->setDirection(Ogre::Vector3(1, -1, 0));
light2->setSpotlightInnerAngle(Ogre::Degree(5.0f));
light2->setSpotlightOuterAngle(Ogre::Degree(45.0f));
light2->setSpotlightFalloff(0.0f);
light2->setDiffuseColour(Ogre::ColourValue(0.0f, 1.0f, 0.0f));
node2->attachObject(light2);
Ogre::SceneNode* node3 = node2->createChildSceneNode("node3");
node3->setPosition(0, 100, 0);
Ogre::Entity* sphere = mSceneMgr->createEntity("sphereentity", "sphere.mesh");
node3->attachObject(sphere);
}
private:
};
directionallight + shadow
class MyApplication :public ExampleApplication
{
public:
void createScene()
{
// 先用定义的平面创建一个网格，再用创建的网格构造一个实体
Ogre::Plane plane(Ogre::Vector3::UNIT_Y, -200);
Ogre::MeshManager::getSingleton().createPlane("plane",
ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
plane, 1500, 1500, 200, 200,
true, 1, 5, 5, Vector3::UNIT_Z
);
Ogre::Entity* ent = mSceneMgr->createEntity("lightpalneentity", "plane");
Ogre::SceneNode* node = mSceneMgr->createSceneNode("node");
mSceneMgr->getRootSceneNode()->addChild(node);
node->attachObject(ent);
ent->setMaterialName("Examples/BeachStones");
// 方向光不用设置位置
Ogre::Light* light = mSceneMgr->createLight("light");
light->setType(Ogre::Light::LT_DIRECTIONAL);
light->setDiffuseColour(Ogre::ColourValue(1.0f, 1.0f, 1.0f));
light->setDirection(Ogre::Vector3(1, -1, 0));
Ogre::Entity* ent2 = mSceneMgr->createEntity("sinbad2", "Sinbad.mesh");
Ogre::SceneNode* node2 = mSceneMgr->createSceneNode("scenenode2");
node->addChild(node2);
node2->setScale(3.0f, 3.0f, 3.0f);
node2->setPosition(Ogre::Vector3(0.0f, 1.0f, 0.0f));
node2->attachObject(ent2);
// 设置阴影
mSceneMgr->setShadowTechnique(Ogre::SHADOWTYPE_STENCIL_ADDITIVE);
}
private:
};
创建摄像机，视口
class MyApplication :public ExampleApplication
{
public:
void createCamera()
{
mCamera = mSceneMgr->createCamera("mycamera");
mCamera->setPosition(0, 100, 200);
mCamera->lookAt(0, 0, 0);
mCamera->setNearClipDistance(50);
//mCamera->setFarClipDistance(2000);
// the same effect as press R
mCamera->setPolygonMode(Ogre::PM_WIREFRAME);
}
void createViewports()
{
// create a viewport
Ogre::Viewport* vp = mWindow->addViewport(mCamera);
// set viewport's background color
vp->setBackgroundColour(Ogre::ColourValue(0.0f, 0.0f, 1.0f));
// set aspect ratio
mCamera->setAspectRatio(Real(vp->getActualWidth() / vp->getActualHeight()));
}
void createScene()
{
// 先用定义的平面创建一个网格，再用创建的网格构造一个实体
Ogre::Plane plane(Ogre::Vector3::UNIT_Y, -200);
Ogre::MeshManager::getSingleton().createPlane("plane",
ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
plane, 1500, 1500, 200, 200,
true, 1, 5, 5, Vector3::UNIT_Z
);
Ogre::Entity* ent = mSceneMgr->createEntity("lightpalneentity", "plane");
Ogre::SceneNode* node = mSceneMgr->createSceneNode("node");
mSceneMgr->getRootSceneNode()->addChild(node);
node->attachObject(ent);
ent->setMaterialName("Examples/BeachStones");
// 方向光不用设置位置
Ogre::Light* light = mSceneMgr->createLight("light");
light->setType(Ogre::Light::LT_DIRECTIONAL);
light->setDiffuseColour(Ogre::ColourValue(1.0f, 1.0f, 1.0f));
light->setDirection(Ogre::Vector3(1, -1, 0));
Ogre::Entity* ent2 = mSceneMgr->createEntity("sinbad2", "Sinbad.mesh");
Ogre::SceneNode* node2 = mSceneMgr->createSceneNode("scenenode2");
node->addChild(node2);
node2->setScale(3.0f, 3.0f, 3.0f);
node2->setPosition(Ogre::Vector3(0.0f, 4.0f, 0.0f));
node2->attachObject(ent2);
// 设置阴影
mSceneMgr->setShadowTechnique(Ogre::SHADOWTYPE_STENCIL_ADDITIVE);
}
private:
};