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Irrlicht学习笔记(11)--TerrainRender_irrlicht cskydomescenenode

作者：weixin_40725706 | 2024-02-23 02:48:03

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irrlicht cskydomescenenode

说明:

本例程关于:

显示模式:网格,点云

材质模式:solid,detail mapped

天空盒与天空穹

源码:

#include <iostream>

#include <irrlicht.h>

#include "driverChoice.h"

using namespace irr;

#ifdef _IRR_WINDOWS_

#pragma comment(lib, "irrlicht.lib")

//#pragma comment(linker, "/subsystem:windows /ENTRY:mainCRTStartup")

#endif

/**

*1.事件处理

*"W"网格模式

*"P"点云模式

*"D"solid和detail mapped材质切换

*"S"切换天空

class MyEventReceiver:public IEventReceiver

{

private:

*四个成员变量,

*地形节点

*天空盒节点

*圆顶天空节点

*showBox状态标记

scene::ISceneNode* Terrain;

scene::ISceneNode* Skybox;

scene::ISceneNode* Skydome;

bool showBox;

public:

//构造函数,初始使用skybox

MyEventReceiver(scene::ISceneNode* terrain, scene::ISceneNode* skybox, scene::ISceneNode* skydome

):Terrain(terrain), Skybox(skybox), Skydome(skydome), showBox(true)

{

Skybox->setVisible(true);

Skydome->setVisible(false);

}

//事件处理函数

bool OnEvent(const SEvent& event)

{

if (event.EventType == irr::EET_KEY_INPUT_EVENT&&!event.KeyInput.PressedDown)

{

switch (event.KeyInput.Key)

{

case irr::KEY_KEY_W://frame模式

Terrain->setMaterialFlag(video::EMF_WIREFRAME, !Terrain->getMaterial(0).Wireframe);

Terrain->setMaterialFlag(video::EMF_POINTCLOUD, false);

return true;

case irr::KEY_KEY_P://点云模式

Terrain->setMaterialFlag(video::EMF_POINTCLOUD, !Terrain->getMaterial(0).PointCloud);

Terrain->setMaterialFlag(video::EMF_WIREFRAME, false);

return true;

case irr::KEY_KEY_D://toggle detail map

Terrain->setMaterialType(Terrain->getMaterial(0).MaterialType == video::EMT_SOLID ?

video::EMT_DETAIL_MAP : video::EMT_SOLID);

return true;

case irr::KEY_KEY_S:

showBox = !showBox;

Skybox->setVisible(showBox);

Skydome->setVisible(!showBox);

return true;

default:

break;

}

return false;

}

};

int main(int argc, char** argv)

{

video::E_DRIVER_TYPE driverType = driverChoiceConsole();

IrrlichtDevice *Device =

createDevice(driverType, core::dimension2d<u32>(720, 455), 32,

false, true, false, 0);

if (!Device)

return 1;

Device->setWindowCaption(L"12TerrainRender");

video::IVideoDriver *driver = Device->getVideoDriver();

scene::ISceneManager *smgr = Device->getSceneManager();

gui::IGUIEnvironment *guiev = Device->getGUIEnvironment();

//2.准备

//logo,添加帮助,添加照相机

guiev->addImage(driver->getTexture("../media/irrlichtlogo2.png"), core::position2d<s32>(10, 10));

guiev->getSkin()->setFont(guiev->getFont("../media/fontlucida.png"));

guiev->addStaticText(

L"W:wire frame mode\nP:Point cloud\nD:toggle detailed map\nS:witch sky mode",

core::rect<s32>(10, 385, 250, 475), true, true, 0, -1, true);

scene::ICameraSceneNode* camera = smgr->addCameraSceneNodeFPS(0, 100.0f, 1.2f);

// camera->setPosition(core::vector3df(2700 * 2, 255 * 2, 2600 * 2));//?

camera->setPosition(core::vector3df(200,4100, 2000));

camera->setTarget(core::vector3df(2497 * 2, 243 * 2, 2700 * 2));//目标

camera->setFarValue(42000.0f);

Device->getCursorControl()->setVisible(false);

*2.添加地形节点

*ISceneManager::addTerrainSceneNode()

*缩放(40,4.4,40)

*terrain-texture.jpg第一层,1次

*detailmap3.jpg纹理,20次

scene::ITerrainSceneNode* terrain = smgr->addTerrainSceneNode(

"../media/terrain-heightmap.bmp", 0, -1,

core::vector3df(0, 0, 0),/*position*/

core::vector3df(0, 0, 0),/*rotation*/

core::vector3df(400, 44, 400),/*scale*/

video::SColor(255, 255, 255, 255),/*vertexColor*/

5,/*maxLOD*/

scene::ETPS_17,/*patchSize*/

4/*smoothFactor*/

);

terrain->setMaterialFlag(video::EMF_LIGHTING, false);

terrain->setMaterialTexture(0, driver->getTexture("../media/terrain-texture.jpg"));

terrain->setMaterialTexture(1, driver->getTexture("../media/detailmap3.jpg"));

terrain->scaleTexture(1.0f, 20.0f);

*3.添加碰撞检测

*三步:

*为地形创建三角形选择器

*为三角形选择器创建碰撞动画

*绑定到照相机

scene::ITriangleSelector* selector =

smgr->createTerrainTriangleSelector(terrain, 0);

terrain->setTriangleSelector(selector);

scene::ISceneNodeAnimator* anim = smgr->createCollisionResponseAnimator(

selector, camera, core::vector3df(60, 100, 60),

core::vector3df(0, -9.8, 0),

core::vector3df(0, 50, 0));

selector->drop();

camera->addAnimator(anim);

anim->drop();

*4.额外的

*获取地形数据,这里没有使用它

scene::CDynamicMeshBuffer* buffer = new scene::CDynamicMeshBuffer(video::EVT_2TCOORDS,

video::EIT_16BIT);

terrain->getMeshBufferForLOD(*buffer, 0);

video::S3DVertex2TCoords* data = (video::S3DVertex2TCoords*)buffer->getVertexBuffer().getData();

//work

buffer->drop();

*5.天空

*天空盒和天空穹

driver->setTextureCreationFlag(video::ETCF_CREATE_MIP_MAPS, false);

scene::ISceneNode* skybox = smgr->addSkyBoxSceneNode(

driver->getTexture("../media/irrlicht2_up.jpg"),

driver->getTexture("../media/irrlicht2_dn.jpg"),

driver->getTexture("../media/irrlicht2_lf.jpg"),

driver->getTexture("../media/irrlicht2_rt.jpg"),

driver->getTexture("../media/irrlicht2_ft.jpg"),

driver->getTexture("../media/irrlicht2_bk.jpg"));

scene::ISceneNode* skydome = smgr->addSkyDomeSceneNode(

driver->getTexture("../media/skydome.jpg"),

16,/*horiRes*/

8,/*vertRes*/

0.95f,/*texturePercentange*/

2.0f/*spherePercentage*/);

driver->setTextureCreationFlag(video::ETCF_CREATE_MIP_MAPS, true);

MyEventReceiver receiver(terrain, skybox, skydome);

Device->setEventReceiver(&receiver);

int lastFPS = -1;

while (Device->run())

{

driver->beginScene(true, true, video::SColor(255, 100, 101, 140));

smgr->drawAll();

guiev->drawAll();

driver->endScene();

int fps = driver->getFPS();

if (lastFPS != fps)

{

core::stringw str = L"Campfire FX example [";

str += driver->getName();

str += "]FPS.",

str += fps;

Device->setWindowCaption(str.c_str());

lastFPS = fps;

}

Device->drop();

return 0;

}

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