C/C++ GUI プログラミング Windows: Basic Tutorial 3　をやってみる

Basic Tutorial 3　は地形、空、霧

まずは地形から
とりあえず最初のビルド出来る状態までやってみる。

/*
-----------------------------------------------------------------------------
Filename:    TutorialApplication.h
-----------------------------------------------------------------------------

This source file is part of the
   ___                 __    __ _ _    _ 
  /___\__ _ _ __ ___  / / /\ \ (_) | _(_)
 //  // _` | '__/ _ \ \ \/  \/ / | |/ / |
/ \_// (_| | | |  __/  \  /\  /| |   <| |
\___/ \__, |_|  \___|   \/  \/ |_|_|\_\_|
      |___/                              
      Tutorial Framework
      http://www.ogre3d.org/tikiwiki/
-----------------------------------------------------------------------------
*/
#ifndef __TutorialApplication_h_
#define __TutorialApplication_h_

#include 
#include 
#include "BaseApplication.h"

class TutorialApplication : public BaseApplication
{
public:
 TutorialApplication(void);
 virtual ~TutorialApplication(void);

protected:
 virtual void createScene(void);
 virtual void createFrameListener(void);
 virtual void destroyScene(void);
 virtual bool frameRenderingQueued(const Ogre::FrameEvent& evt);

private:
 Ogre::TerrainGlobalOptions* mTerrainGlobals;
 Ogre::TerrainGroup* mTerrainGroup;
 bool mTerrainsImported;

 void defineTerrain(long x, long y);
 void initBlendMaps(Ogre::Terrain* terrain);
 void configureTerrainDefaults(Ogre::Light* light);
};

#endif // #ifndef __TutorialApplication_h_

/*
-----------------------------------------------------------------------------
Filename:    TutorialApplication.cpp
-----------------------------------------------------------------------------

This source file is part of the
   ___                 __    __ _ _    _ 
  /___\__ _ _ __ ___  / / /\ \ (_) | _(_)
 //  // _` | '__/ _ \ \ \/  \/ / | |/ / |
/ \_// (_| | | |  __/  \  /\  /| |   <| |
\___/ \__, |_|  \___|   \/  \/ |_|_|\_\_|
      |___/                              
      Tutorial Framework
      http://www.ogre3d.org/tikiwiki/
-----------------------------------------------------------------------------
*/
#include "TutorialApplication.h"

//-------------------------------------------------------------------------------------
TutorialApplication::TutorialApplication(void)
{
}
//-------------------------------------------------------------------------------------
TutorialApplication::~TutorialApplication(void)
{
}

//-------------------------------------------------------------------------------------
void TutorialApplication::destroyScene(void)
{

}
//-------------------------------------------------------------------------------------
void getTerrainImage(bool flipX, bool flipY, Ogre::Image& img)
{
 img.load("terrain.png", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
 if (flipX)
  img.flipAroundY();
 if (flipY)
  img.flipAroundX();
}
//-------------------------------------------------------------------------------------
void TutorialApplication::defineTerrain(long x, long y)
{
 Ogre::String filename = mTerrainGroup->generateFilename(x, y);
 if (Ogre::ResourceGroupManager::getSingleton().resourceExists(mTerrainGroup->getResourceGroup(), filename))
 {
  mTerrainGroup->defineTerrain(x, y);
 }
 else
 {
  Ogre::Image img;
  getTerrainImage(x % 2 != 0, y % 2 != 0, img);
  mTerrainGroup->defineTerrain(x, y, &img);
  mTerrainsImported = true;
 }
}
//-------------------------------------------------------------------------------------
void TutorialApplication::initBlendMaps(Ogre::Terrain* terrain)
{
 Ogre::TerrainLayerBlendMap* blendMap0 = terrain->getLayerBlendMap(1);
 Ogre::TerrainLayerBlendMap* blendMap1 = terrain->getLayerBlendMap(2);
 Ogre::Real minHeight0 = 70;
 Ogre::Real fadeDist0 = 40;
 Ogre::Real minHeight1 = 70;
 Ogre::Real fadeDist1 = 15;
 float* pBlend0 = blendMap0->getBlendPointer();
 float* pBlend1 = blendMap1->getBlendPointer();
 for (Ogre::uint16 y = 0; y < terrain->getLayerBlendMapSize(); ++y)
 {
  for (Ogre::uint16 x = 0; x < terrain->getLayerBlendMapSize(); ++x)
  {
   Ogre::Real tx, ty;

   blendMap0->convertImageToTerrainSpace(x, y, &tx, &ty);
   Ogre::Real height = terrain->getHeightAtTerrainPosition(tx, ty);
   Ogre::Real val = (height - minHeight0) / fadeDist0;
   val = Ogre::Math::Clamp(val, (Ogre::Real)0, (Ogre::Real)1);
   *pBlend0++ = val;

   val = (height - minHeight1) / fadeDist1;
   val = Ogre::Math::Clamp(val, (Ogre::Real)0, (Ogre::Real)1);
   *pBlend1++ = val;
  }
 }
 blendMap0->dirty();
 blendMap1->dirty();
 blendMap0->update();
 blendMap1->update();
}
//-------------------------------------------------------------------------------------
void TutorialApplication::configureTerrainDefaults(Ogre::Light* light)
{
 // Configure global
 mTerrainGlobals->setMaxPixelError(8);
 // testing composite map
 mTerrainGlobals->setCompositeMapDistance(3000);

 // Important to set these so that the terrain knows what to use for derived (non-realtime) data
 mTerrainGlobals->setLightMapDirection(light->getDerivedDirection());
 mTerrainGlobals->setCompositeMapAmbient(mSceneMgr->getAmbientLight());
 mTerrainGlobals->setCompositeMapDiffuse(light->getDiffuseColour());

 // Configure default import settings for if we use imported image
 Ogre::Terrain::ImportData& defaultimp = mTerrainGroup->getDefaultImportSettings();
 defaultimp.terrainSize = 513;
 defaultimp.worldSize = 12000.0f;
 defaultimp.inputScale = 600;
 defaultimp.minBatchSize = 33;
 defaultimp.maxBatchSize = 65;
 // textures
 defaultimp.layerList.resize(3);
 defaultimp.layerList[0].worldSize = 100;
 defaultimp.layerList[0].textureNames.push_back("dirt_grayrocky_diffusespecular.dds");
 defaultimp.layerList[0].textureNames.push_back("dirt_grayrocky_normalheight.dds");
 defaultimp.layerList[1].worldSize = 30;
 defaultimp.layerList[1].textureNames.push_back("grass_green-01_diffusespecular.dds");
 defaultimp.layerList[1].textureNames.push_back("grass_green-01_normalheight.dds");
 defaultimp.layerList[2].worldSize = 200;
 defaultimp.layerList[2].textureNames.push_back("growth_weirdfungus-03_diffusespecular.dds");
 defaultimp.layerList[2].textureNames.push_back("growth_weirdfungus-03_normalheight.dds");

}

//-------------------------------------------------------------------------------------
void TutorialApplication::createScene(void)
{
 // create your scene here :)
 mCamera->setPosition(Ogre::Vector3(1683, 50, 2116));
 mCamera->lookAt(Ogre::Vector3(1963, 50, 1660));
 mCamera->setNearClipDistance(0.1);
 mCamera->setFarClipDistance(50000);

 if (mRoot->getRenderSystem()->getCapabilities()->hasCapability(Ogre::RSC_INFINITE_FAR_PLANE))
 {
  mCamera->setFarClipDistance(0);   // enable infinite far clip distance if we can
 }

 Ogre::MaterialManager::getSingleton().setDefaultTextureFiltering(Ogre::TFO_ANISOTROPIC);
 Ogre::MaterialManager::getSingleton().setDefaultAnisotropy(7);

 Ogre::Vector3 lightdir(0.55, -0.3, 0.75);
 lightdir.normalise();

 Ogre::Light* light = mSceneMgr->createLight("tstLight");
 light->setType(Ogre::Light::LT_DIRECTIONAL);
 light->setDirection(lightdir);
 light->setDiffuseColour(Ogre::ColourValue::White);
 light->setSpecularColour(Ogre::ColourValue(0.4, 0.4, 0.4));

 mSceneMgr->setAmbientLight(Ogre::ColourValue(0.2, 0.2, 0.2));

 mTerrainGlobals = OGRE_NEW Ogre::TerrainGlobalOptions();

 mTerrainGroup = OGRE_NEW Ogre::TerrainGroup(mSceneMgr, Ogre::Terrain::ALIGN_X_Z, 513, 12000.0f);
 mTerrainGroup->setFilenameConvention(Ogre::String("BasicTutorial3Terrain"), Ogre::String("dat"));
 mTerrainGroup->setOrigin(Ogre::Vector3::ZERO);

 configureTerrainDefaults(light);

 for (long x = 0; x <= 0; ++x)
  for (long y = 0; y <= 0; ++y)
   defineTerrain(x, y);

 // sync load since we want everything in place when we start
 mTerrainGroup->loadAllTerrains(true);

 if (mTerrainsImported)
 {
  Ogre::TerrainGroup::TerrainIterator ti = mTerrainGroup->getTerrainIterator();
  while(ti.hasMoreElements())
  {
   Ogre::Terrain* t = ti.getNext()->instance;
   initBlendMaps(t);
  }
 }

 mTerrainGroup->freeTemporaryResources();
}

//-------------------------------------------------------------------------------------
void TutorialApplication::createFrameListener(void)
{

}
//-------------------------------------------------------------------------------------
bool TutorialApplication::frameRenderingQueued(const Ogre::FrameEvent& evt)
{
 bool ret = BaseApplication::frameRenderingQueued(evt);
 return ret;
}


#if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
#define WIN32_LEAN_AND_MEAN
#include "windows.h"
#endif

#ifdef __cplusplus
extern "C" {
#endif

#if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
 INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE, LPSTR strCmdLine, INT )
#else
 int main(int argc, char *argv[])
#endif
 {
  // Create application object
  TutorialApplication app;

  try {
   app.go();
  } catch( Ogre::Exception& e ) {
#if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
   MessageBox( NULL, e.getFullDescription().c_str(), "An exception has occured!", MB_OK | MB_ICONERROR | MB_TASKMODAL);
#else
   std::cerr << "An exception has occured: " <<
    e.getFullDescription().c_str() << std::endl;
#endif
  }

  return 0;
 }

#ifdef __cplusplus
}
#endif

次に

地形生成インジケータ
地形の保存
クリーンアップ

を行う事で、アプリを向上出来るようです。

/*
-----------------------------------------------------------------------------
Filename:    TutorialApplication.cpp
-----------------------------------------------------------------------------

This source file is part of the
   ___                 __    __ _ _    _ 
  /___\__ _ _ __ ___  / / /\ \ (_) | _(_)
 //  // _` | '__/ _ \ \ \/  \/ / | |/ / |
/ \_// (_| | | |  __/  \  /\  /| |   <| |
\___/ \__, |_|  \___|   \/  \/ |_|_|\_\_|
      |___/                              
      Tutorial Framework
      http://www.ogre3d.org/tikiwiki/
-----------------------------------------------------------------------------
*/
#include "TutorialApplication.h"

//-------------------------------------------------------------------------------------
TutorialApplication::TutorialApplication(void)
{
}
//-------------------------------------------------------------------------------------
TutorialApplication::~TutorialApplication(void)
{
}

//-------------------------------------------------------------------------------------
void TutorialApplication::destroyScene(void)
{
 OGRE_DELETE mTerrainGroup;
 OGRE_DELETE mTerrainGlobals;
}
//-------------------------------------------------------------------------------------
void getTerrainImage(bool flipX, bool flipY, Ogre::Image& img)
{
 img.load("terrain.png", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
 if (flipX)
  img.flipAroundY();
 if (flipY)
  img.flipAroundX();
}
//-------------------------------------------------------------------------------------
void TutorialApplication::defineTerrain(long x, long y)
{
 Ogre::String filename = mTerrainGroup->generateFilename(x, y);
 if (Ogre::ResourceGroupManager::getSingleton().resourceExists(mTerrainGroup->getResourceGroup(), filename))
 {
  mTerrainGroup->defineTerrain(x, y);
 }
 else
 {
  Ogre::Image img;
  getTerrainImage(x % 2 != 0, y % 2 != 0, img);
  mTerrainGroup->defineTerrain(x, y, &img);
  mTerrainsImported = true;
 }
}
//-------------------------------------------------------------------------------------
void TutorialApplication::initBlendMaps(Ogre::Terrain* terrain)
{
 Ogre::TerrainLayerBlendMap* blendMap0 = terrain->getLayerBlendMap(1);
 Ogre::TerrainLayerBlendMap* blendMap1 = terrain->getLayerBlendMap(2);
 Ogre::Real minHeight0 = 70;
 Ogre::Real fadeDist0 = 40;
 Ogre::Real minHeight1 = 70;
 Ogre::Real fadeDist1 = 15;
 float* pBlend0 = blendMap0->getBlendPointer();
 float* pBlend1 = blendMap1->getBlendPointer();
 for (Ogre::uint16 y = 0; y < terrain->getLayerBlendMapSize(); ++y)
 {
  for (Ogre::uint16 x = 0; x < terrain->getLayerBlendMapSize(); ++x)
  {
   Ogre::Real tx, ty;

   blendMap0->convertImageToTerrainSpace(x, y, &tx, &ty);
   Ogre::Real height = terrain->getHeightAtTerrainPosition(tx, ty);
   Ogre::Real val = (height - minHeight0) / fadeDist0;
   val = Ogre::Math::Clamp(val, (Ogre::Real)0, (Ogre::Real)1);
   *pBlend0++ = val;

   val = (height - minHeight1) / fadeDist1;
   val = Ogre::Math::Clamp(val, (Ogre::Real)0, (Ogre::Real)1);
   *pBlend1++ = val;
  }
 }
 blendMap0->dirty();
 blendMap1->dirty();
 blendMap0->update();
 blendMap1->update();
}
//-------------------------------------------------------------------------------------
void TutorialApplication::configureTerrainDefaults(Ogre::Light* light)
{
 // Configure global
 mTerrainGlobals->setMaxPixelError(8);
 // testing composite map
 mTerrainGlobals->setCompositeMapDistance(3000);

 // Important to set these so that the terrain knows what to use for derived (non-realtime) data
 mTerrainGlobals->setLightMapDirection(light->getDerivedDirection());
 mTerrainGlobals->setCompositeMapAmbient(mSceneMgr->getAmbientLight());
 mTerrainGlobals->setCompositeMapDiffuse(light->getDiffuseColour());

 // Configure default import settings for if we use imported image
 Ogre::Terrain::ImportData& defaultimp = mTerrainGroup->getDefaultImportSettings();
 defaultimp.terrainSize = 513;
 defaultimp.worldSize = 12000.0f;
 defaultimp.inputScale = 600;
 defaultimp.minBatchSize = 33;
 defaultimp.maxBatchSize = 65;
 // textures
 defaultimp.layerList.resize(3);
 defaultimp.layerList[0].worldSize = 100;
 defaultimp.layerList[0].textureNames.push_back("dirt_grayrocky_diffusespecular.dds");
 defaultimp.layerList[0].textureNames.push_back("dirt_grayrocky_normalheight.dds");
 defaultimp.layerList[1].worldSize = 30;
 defaultimp.layerList[1].textureNames.push_back("grass_green-01_diffusespecular.dds");
 defaultimp.layerList[1].textureNames.push_back("grass_green-01_normalheight.dds");
 defaultimp.layerList[2].worldSize = 200;
 defaultimp.layerList[2].textureNames.push_back("growth_weirdfungus-03_diffusespecular.dds");
 defaultimp.layerList[2].textureNames.push_back("growth_weirdfungus-03_normalheight.dds");

}

//-------------------------------------------------------------------------------------
void TutorialApplication::createScene(void)
{
 // create your scene here :)
 mCamera->setPosition(Ogre::Vector3(1683, 50, 2116));
 mCamera->lookAt(Ogre::Vector3(1963, 50, 1660));
 mCamera->setNearClipDistance(0.1);
 mCamera->setFarClipDistance(50000);

 if (mRoot->getRenderSystem()->getCapabilities()->hasCapability(Ogre::RSC_INFINITE_FAR_PLANE))
 {
  mCamera->setFarClipDistance(0);   // enable infinite far clip distance if we can
 }

 Ogre::MaterialManager::getSingleton().setDefaultTextureFiltering(Ogre::TFO_ANISOTROPIC);
 Ogre::MaterialManager::getSingleton().setDefaultAnisotropy(7);

 Ogre::Vector3 lightdir(0.55, -0.3, 0.75);
 lightdir.normalise();

 Ogre::Light* light = mSceneMgr->createLight("tstLight");
 light->setType(Ogre::Light::LT_DIRECTIONAL);
 light->setDirection(lightdir);
 light->setDiffuseColour(Ogre::ColourValue::White);
 light->setSpecularColour(Ogre::ColourValue(0.4, 0.4, 0.4));

 mSceneMgr->setAmbientLight(Ogre::ColourValue(0.2, 0.2, 0.2));

 mTerrainGlobals = OGRE_NEW Ogre::TerrainGlobalOptions();

 mTerrainGroup = OGRE_NEW Ogre::TerrainGroup(mSceneMgr, Ogre::Terrain::ALIGN_X_Z, 513, 12000.0f);
 mTerrainGroup->setFilenameConvention(Ogre::String("BasicTutorial3Terrain"), Ogre::String("dat"));
 mTerrainGroup->setOrigin(Ogre::Vector3::ZERO);

 configureTerrainDefaults(light);

 for (long x = 0; x <= 0; ++x)
  for (long y = 0; y <= 0; ++y)
   defineTerrain(x, y);

 // sync load since we want everything in place when we start
 mTerrainGroup->loadAllTerrains(true);

 if (mTerrainsImported)
 {
  Ogre::TerrainGroup::TerrainIterator ti = mTerrainGroup->getTerrainIterator();
  while(ti.hasMoreElements())
  {
   Ogre::Terrain* t = ti.getNext()->instance;
   initBlendMaps(t);
  }
 }

 mTerrainGroup->freeTemporaryResources();
}

//-------------------------------------------------------------------------------------
void TutorialApplication::createFrameListener(void)
{
 BaseApplication::createFrameListener();

 mInfoLabel = mTrayMgr->createLabel(OgreBites::TL_TOP, "TInfo", "", 350);
}
//-------------------------------------------------------------------------------------
bool TutorialApplication::frameRenderingQueued(const Ogre::FrameEvent& evt)
{
 bool ret = BaseApplication::frameRenderingQueued(evt);

 if (mTerrainGroup->isDerivedDataUpdateInProgress())
 {
  mTrayMgr->moveWidgetToTray(mInfoLabel, OgreBites::TL_TOP, 0);
  mInfoLabel->show();
  if (mTerrainsImported)
  {
   mInfoLabel->setCaption("Building terrain, please wait...");
  }
  else
  {
   mInfoLabel->setCaption("Updating textures, patience...");
  }
 }
 else
 {
  mTrayMgr->removeWidgetFromTray(mInfoLabel);
  mInfoLabel->hide();
  if (mTerrainsImported)
  {
   mTerrainGroup->saveAllTerrains(true);
   mTerrainsImported = false;
  }
 }

 return ret;
}


#if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
#define WIN32_LEAN_AND_MEAN
#include "windows.h"
#endif

#ifdef __cplusplus
extern "C" {
#endif

#if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
 INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE, LPSTR strCmdLine, INT )
#else
 int main(int argc, char *argv[])
#endif
 {
  // Create application object
  TutorialApplication app;

  try {
   app.go();
  } catch( Ogre::Exception& e ) {
#if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
   MessageBox( NULL, e.getFullDescription().c_str(), "An exception has occured!", MB_OK | MB_ICONERROR | MB_TASKMODAL);
#else
   std::cerr << "An exception has occured: " <<
    e.getFullDescription().c_str() << std::endl;
#endif
  }

  return 0;
 }

#ifdef __cplusplus
}
#endif

フレームリスナーを追加して、カメラの移動も可能になった。

次は空
void TutorialApplication::createScene(void){..}の末尾に次の行を追加する。

mSceneMgr->setSkyBox(true, "Examples/SpaceSkyBox");

中断...

C/C++ GUI プログラミング Windows

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2013年12月12日木曜日

Basic Tutorial 3　をやってみる

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2013年12月12日木曜日

Basic Tutorial 3 をやってみる

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Basic Tutorial 3　をやってみる