int MyTerrain::GetSelectAreaID( Ogre::Ray ray )
{
Ogre::TerrainGroup::RayResult result=m_pTerrainGroup->rayIntersects(ray);
if(!result.hit)
return -1;
//m_pSceneMgr->getSceneNode("test")->setPosition(result.position);
bool nosign=false;
Ogre::Terrain* terrain = m_pTerrainGroup->getTerrain(0,0);
int size= terrain->getLayerBlendMapSize();
int x=result.position.x*m_EdgeImage.width()/(float)terrain->getWorldSize();
int y=result.position.z*m_EdgeImage.height()/(float)terrain->getWorldSize();
QRgb resultrgb=m_AreaImage.pixel(x,y);
int gray=qGray(m_EdgeImage.pixel(x,y));
if(gray!=255)
{
return -1;
}
else
{
int id=qGreen(resultrgb)*256+qBlue(resultrgb);
if(id<65535)
return id;
else
return -1;
}
}
//-----------------------------------------------------------------------------------------
void CTerrainGroupEditor::_calculatesmoothingfactor(CTerrainPageEditor *handle, Ogre::Vector3 &editpos, float& avg, int& sample_count)
{
Ogre::Rect brushrect, maprect;
editpos.x *= (float)(mMapSize->get() - 1);
editpos.y *= (float)(mMapSize->get() - 1);
avg = 0.0f;
sample_count = 0;
if(!_getEditRect(editpos, brushrect, maprect, mMapSize->get()))
return;
Ogre::Terrain *terrain = static_cast<Ogre::Terrain*>(handle->getHandle());
float *mHeightData = terrain->getHeightData();
int mapPos;
for(int j = maprect.top;j < maprect.bottom;j++)
{
mapPos = (j * mMapSize->get()) + maprect.left;
for(int i = maprect.left;i < maprect.right;i++)
{
avg += mHeightData[mapPos];
++mapPos;
}
}
sample_count = (maprect.right - maprect.left) * (maprect.bottom - maprect.top);
}
void MyTerrain::InitHydrax()
{
if(Global::UseHydrax)
{
m_pHydrax=new Hydrax::Hydrax(m_pSceneMgr,MyGameApp::GetSingleton().GetMainCamera(),MyGameApp::GetSingleton().GetRenderWindow()->getViewport(0));
Hydrax::Module::ProjectedGrid *mModule
= new Hydrax::Module::ProjectedGrid(
m_pHydrax,
new Hydrax::Noise::Perlin(/*Generic one*/),
Ogre::Plane(Ogre::Vector3(0,1,0), Ogre::Vector3(0,0,0)),
Hydrax::MaterialManager::NM_VERTEX,
Hydrax::Module::ProjectedGrid::Options(/*264 /*Generic one*/));
m_pHydrax->setModule(static_cast<Hydrax::Module::Module*>(mModule));
m_pHydrax->loadCfg("Hydrax.hdx");
auto ti=m_pTerrainGroup->getTerrainIterator();
while(ti.hasMoreElements())
{
Ogre::Terrain* t = ti.getNext()->instance;
Ogre::MaterialPtr pMat = t->getMaterial();
m_pHydrax->getMaterialManager()->addDepthTechnique(pMat->createTechnique());
}
m_pHydrax->create();
}
}
void EmberTerrainGroup::handleResponse(const WorkQueue::Response* res, const WorkQueue* srcQ)
{
--sLoadingTaskNum;
LoadRequest lreq = any_cast<LoadRequest>(res->getRequest()->getData());
if (res->succeeded()) {
TerrainSlot* slot = lreq.slot;
Ogre::Terrain* terrain = slot->instance;
if (terrain) {
terrain->setPosition(getTerrainSlotPosition(slot->x, slot->y));
if (mAutoUpdateLod) {
terrain->load(-1, false);
} else {
terrain->load(0, true);
}
for (int i = -1; i <= 1; ++i) {
for (int j = -1; j <= 1; ++j) {
if (i != 0 || j != 0) {
connectNeighbour(slot, i, j);
}
}
}
}
} else {
S_LOG_FAILURE("Failed to prepare terrain at " << lreq.slot->x << ", " << lreq.slot->y << ". Error: " << res->getMessages());
lreq.slot->freeInstance();
}
}
Ogre::Vector2 MyTerrain::GetWorldPointFromImagePoint( Ogre::Vector2 point )
{
Ogre::Vector2 v;
Ogre::Terrain* terrain = m_pTerrainGroup->getTerrain(0,0);
v.x=point.x*m_EdgeImage.width()/(float)terrain->getWorldSize();
v.y=point.y*m_EdgeImage.height()/(float)terrain->getWorldSize();
return v;
}
void ManipulatorTerrain::SetLayerTexture( int nLayer, int diffuseMapID )
{
Ogre::Terrain* pTerrain = ManipulatorSystem.GetScene()->GetTerrain();
assert(nLayer >=0 && nLayer<(int)pTerrain->getLayerCount());
Ogre::String filename, path;
Ogre::StringUtil::splitFilename(m_vecLayerTex[diffuseMapID], filename, path);
SetLayerTexture(nLayer, filename);
}
void TerrainProjectionMarker::FindProjectedTerrainMaterials(Array<string>& matNames)
{
auto& pos = GetPositionAbsolute();
Vector3 orientedSize = Ogre::Quaternion(Ogre::Degree(-90),Ogre::Vector3::UNIT_X) * GetOrientationAbsolute() * Vector3(_halfSize.x, 0.f, _halfSize.y);
// Check which terrain cells are occupied by marker's corners
// ( assume its smaller than terrain cell )
auto map = GameWorld::GlobalWorld->GetMap();
auto terrainGrid = GameWorld::GlobalWorld->GetMap()->GetTerrain()->GetTerrainGrid();
Ogre::Terrain* terrain;
uint32 xMin = (uint32)std::max(0.f, std::min(pos.x - orientedSize.x, pos.x + orientedSize.x));
uint32 xMax = (uint32)std::min(map->GetTerrainSize().x, std::max(pos.x - orientedSize.x, pos.x + orientedSize.x));
uint32 zMin = (uint32)std::max(0.f, std::max(pos.z - orientedSize.y, pos.z + orientedSize.y));
uint32 zMax = (uint32)std::min(map->GetTerrainSize().y, std::max(pos.z - orientedSize.z, pos.z + orientedSize.z));
// Check minimal corner terrain
terrain = terrainGrid->GetTerrainFromPosition(xMin, zMin);
if( _lastProjectedTerrains[0] != terrain )
{
// Terrain cell changed ( or its 1st call )
_lastProjectedTerrains[0] = terrain;
matNames.push_back(terrain->getMaterialName());
}
// Check maximal corner terrain
terrain = terrainGrid->GetTerrainFromPosition(xMax, zMax);
if( _lastProjectedTerrains[0] != terrain )
{
// Marker on multiple cells
if( _lastProjectedTerrains[3] != terrain )
{
_lastProjectedTerrains[3] = terrain;
matNames.push_back(terrain->getMaterialName());
}
terrain = terrainGrid->GetTerrainFromPosition(xMax, zMin);
if( _lastProjectedTerrains[1] != terrain )
{
_lastProjectedTerrains[1] = terrain;
matNames.push_back(terrain->getMaterialName());
}
terrain = terrainGrid->GetTerrainFromPosition(xMin, zMax);
if( _lastProjectedTerrains[2] != terrain )
{
_lastProjectedTerrains[2] = terrain;
matNames.push_back(terrain->getMaterialName());
}
}
else
{
// Max and min corner falls into same cell, so we'll have only one terrain
_lastProjectedTerrains[1] = terrain;
_lastProjectedTerrains[2] = terrain;
_lastProjectedTerrains[3] = terrain;
}
}
void ManipulatorTerrain::SetLayerTexture( int nLayer, const std::string& diffuseMapName )
{
Ogre::Terrain* pTerrain = ManipulatorSystem.GetScene()->GetTerrain();
assert(nLayer >=0 && nLayer<(int)pTerrain->getLayerCount());
Ogre::String name = diffuseMapName.substr(0, diffuseMapName.find("diffuse"));
//diffuse map
pTerrain->setLayerTextureName(nLayer, 0, name + "diffusespecular.dds");
//normal map
pTerrain->setLayerTextureName(nLayer, 1, name + "normalheight.dds");
}
TerrainGenerator::TerrainGenerator(Ogre::SceneManager *scene)
: terrains_imported_(false),
scene_manager_(scene)
{
/*mCamera->setPosition(Ogre::Vector3(1683, 50, 2116));
mCamera->lookAt(Ogre::Vector3(1963, 50, 1660));
mCamera->setNearClipDistance(0.1);
mCamera->setFarClipDistance(50000);*/
Ogre::MaterialManager::getSingleton().setDefaultTextureFiltering(Ogre::TFO_ANISOTROPIC);
Ogre::MaterialManager::getSingleton().setDefaultAnisotropy(7);
Ogre::Light* light = scene_manager_->createLight("tstLight");
light->setDiffuseColour(Ogre::ColourValue::White);
light->setSpecularColour(Ogre::ColourValue(1, 1, 1));
scene_manager_->setAmbientLight(Ogre::ColourValue(0.9, 0.9, 0.9));
light->setAttenuation(100000, 1, 1, 1);
terrain_globals_ = OGRE_NEW Ogre::TerrainGlobalOptions();
terrain_group_ = OGRE_NEW Ogre::TerrainGroup(scene_manager_, Ogre::Terrain::ALIGN_X_Z, 513, 12000.0f);
terrain_group_->setFilenameConvention(Ogre::String("BasicTutorial3Terrain"), Ogre::String("dat"));
terrain_group_->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
terrain_group_->loadAllTerrains(true);
if (terrains_imported_)
{
Ogre::TerrainGroup::TerrainIterator ti = terrain_group_->getTerrainIterator();
while(ti.hasMoreElements())
{
Ogre::Terrain* t = ti.getNext()->instance;
t->setPosition(Ogre::Vector3(0, -315, 0));
initBlendMaps(t);
}
}
terrain_group_->freeTemporaryResources();
scene_manager_->setSkyDome(true, "Examples/CloudySky", 5, 8);
//Optional skybox
//Graphics::instance()->getSceneManager()->setSkyDome(true, "Examples/CloudySky", 5, 8);
}
//-----------------------------------------------------------------------------------------
void CTerrainGroupEditor::_deform(CTerrainPageEditor *handle, Ogre::Vector3 &editpos, float timePassed)
{
Ogre::Rect brushrect, maprect;
editpos.x *= (float)(mMapSize->get() - 1);
editpos.y *= (float)(mMapSize->get() - 1);
if(!_getEditRect(editpos, brushrect, maprect, mMapSize->get()))
return;
handle->_notifyModification(-1, maprect);
Ogre::Terrain *terrain = static_cast<Ogre::Terrain*>(handle->getHandle());
float *mHeightData = terrain->getHeightData();
if(mEditDirection)
timePassed *= -1.0f;
float mRatio = (float)BRUSH_DATA_SIZE / (float)mBrushSize;
float brushPos;
int mapPos;
for(int j = maprect.top;j < maprect.bottom;j++)
{
brushPos = (brushrect.top + (int)((j - maprect.top) * mRatio)) * BRUSH_DATA_SIZE;
brushPos += brushrect.left;
mapPos = (j * mMapSize->get()) + maprect.left;
for(int i = maprect.left;i < maprect.right;i++)
{
assert(mapPos < (mMapSize->get() * mMapSize->get()) && mapPos >= 0);
assert((int)brushPos < (BRUSH_DATA_SIZE * BRUSH_DATA_SIZE) && (int)brushPos >= 0);
float val = mHeightData[mapPos] + (mBrushData[(int)brushPos] * mBrushIntensity * timePassed);
assert(val < 10000.0f);
assert(val > -10000.0f);
mHeightData[mapPos] = val;
++mapPos;
brushPos += mRatio;
}
}
terrain->dirtyRect(maprect);
}
void MyTerrain::UpdateTexture()
{
Ogre::Terrain* terrain = m_pTerrainGroup->getTerrain(0,0);
int size= terrain->getLayerBlendMapSize();
Ogre::TerrainLayerBlendMap* blendMap3 = terrain->getLayerBlendMap(4);
float* pBlend3 = blendMap3->getBlendPointer();
for (Ogre::uint16 y = 0; y < terrain->getLayerBlendMapSize(); ++y)
{
for (Ogre::uint16 x = 0; x < terrain->getLayerBlendMapSize(); ++x)
{
float tx, ty;
blendMap3->convertImageToTerrainSpace(x, y, &tx, &ty);
QRgb rgb=m_AreaImage.pixel(x*m_AreaImage.width()/size,y*m_AreaImage.height()/size);
int gray=qGray(m_EdgeImage.pixel(x*m_AreaImage.width()/size,y*m_AreaImage.height()/size));
int r=qRed(rgb);
int g=qGreen(rgb);
int b=qBlue(rgb);
int id=g*256+b;
if(gray==255&&rgb!=qRgb(255,255,255))
{
if(m_AreaVector[id]->m_bHighLight)
{
*pBlend3=0.2;
}
else
{
*pBlend3=0;
}
}
else
{
*pBlend3=0;
}
pBlend3++;
}
}
blendMap3->dirty();
blendMap3->update();
}
void Scene::setup(Sim* sim) {
mSim = sim;
mSim->scene = this;
// Lighting and sky
mSceneMgr->setAmbientLight(Ogre::ColourValue(0.4, 0.4, 0.4));
Ogre::Vector3 lightDir(0.55, -0.3f, 0.75);
lightDir.normalise();
sun = mSceneMgr->createLight("SunLight");
sun->setType(Ogre::Light::LT_DIRECTIONAL);
sun->setDirection(lightDir);
sun->setDiffuseColour(Ogre::ColourValue::White);
sun->setSpecularColour(Ogre::ColourValue(0.4, 0.4, 0.4));
mSceneMgr->setSkyDome(true, "CloudySky");
// Terrain
mTerrainGlobals = OGRE_NEW Ogre::TerrainGlobalOptions();
mTerrainGroup = OGRE_NEW Ogre::TerrainGroup(mSceneMgr, Ogre::Terrain::ALIGN_X_Z,
terrSize, worldSize);
configureTerrainDefaults();
defineTerrain();
mTerrainGroup->loadAllTerrains(true);
Ogre::TerrainGroup::TerrainIterator ti = mTerrainGroup->getTerrainIterator();
while (ti.hasMoreElements()) {
Ogre::Terrain* t = ti.getNext()->instance;
t->setVisibilityFlags(RV_Terrain);
}
mTerrainGroup->freeTemporaryResources();
createBulletTerrain();
// Road
// setupRoad();
// Objects
setupObjects();
}
void TerrainManager::CreatePhysicsShape(void)
{
Ogre::TerrainGroup::TerrainIterator ti = mTerrainGroup->getTerrainIterator();
while (ti.hasMoreElements())
{
Ogre::Terrain *t = ti.getNext()->instance;
LoadTerrainGeometry(t->getMaterialName(), t->getHeightData(),
t->getSize(), t->getWorldSize(), t->getMinHeight(), t->getMaxHeight(), t->getPosition());
}
}
void Scene::createBulletTerrain() {
Ogre::Terrain* baseTerrain = mTerrainGroup->getTerrain(0, 0);
btHeightfieldTerrainShape* hfShape = new btHeightfieldTerrainShape(
baseTerrain->getSize(), baseTerrain->getSize(), baseTerrain->getHeightData(), 1, 0, 0,
2, PHY_FLOAT, false);
// Min and max height were set to 0 to force the terrain to be completely flat
hfShape->setUseDiamondSubdivision(true);
// This scale is based on the tutorial, but it may not be true...
float metersBetweenVerts = baseTerrain->getWorldSize() / (baseTerrain->getSize() - 1);
btVector3 scale(metersBetweenVerts, metersBetweenVerts, 1);
hfShape->setLocalScaling(scale);
hfShape->setUserPointer((void*) SU_Terrain);
btCollisionObject* colObj = new btCollisionObject();
colObj->setCollisionShape(hfShape);
colObj->setFriction(0.9); colObj->setRestitution(0.0);
colObj->setCollisionFlags(colObj->getCollisionFlags() |
btCollisionObject::CF_STATIC_OBJECT |
btCollisionObject::CF_DISABLE_VISUALIZE_OBJECT);
mSim->getCollisionWorld()->getDynamicsWorld()->addCollisionObject(colObj);
mSim->getCollisionWorld()->addShape(hfShape);
// Border planes
const float px[4] = {-1, 1, 0, 0};
const float py[4] = { 0, 0,-1, 1};
for (int i = 0; i < 4; ++i) {
btVector3 vpl(px[i], py[i], 0);
btCollisionShape* shp = new btStaticPlaneShape(vpl, 0);
shp->setUserPointer((void*) SU_Border);
btTransform tr; tr.setIdentity();
tr.setOrigin(vpl * -0.5 * worldSize);
btCollisionObject* col = new btCollisionObject();
col->setCollisionShape(shp);
col->setWorldTransform(tr);
col->setFriction(0.3); //+
col->setRestitution(0.0);
col->setCollisionFlags(col->getCollisionFlags() |
btCollisionObject::CF_STATIC_OBJECT |
btCollisionObject::CF_DISABLE_VISUALIZE_OBJECT);
mSim->getCollisionWorld()->getDynamicsWorld()->addCollisionObject(col);
mSim->getCollisionWorld()->addShape(shp);
}
}
//-----------------------------------------------------------------------------------------
void CTerrainGroupEditor::_splat(CTerrainPageEditor *handle, Ogre::Vector3 &editpos, float timePassed)
{
Ogre::Rect brushrect, maprect;
Ogre::Terrain *terrain = static_cast<Ogre::Terrain*>(handle->getHandle());
int mBlendMapSize = terrain->getLayerBlendMapSize();
editpos.x *= (float)mBlendMapSize;
editpos.y = (1.0f - editpos.y) * (float)mBlendMapSize;
if(!_getEditRect(editpos, brushrect, maprect, mBlendMapSize))
return;
int mLayer = 0;
mLayer = handle->_getLayerID(mTextureDiffuse, mTextureNormal, mEditDirection);
if(mLayer < 1)
return;
handle->_notifyModification(mLayer, maprect);
int mLayerMax = terrain->getLayerCount();
Ogre::TerrainLayerBlendMap *mBlendMaps[128];
float *mBlendDatas[128];
Ogre::TerrainLayerBlendMap *mCurrentBlendMap = terrain->getLayerBlendMap(mLayer);
float *mCurrentBlendData = mCurrentBlendMap->getBlendPointer();
for(int l = mLayer;l < mLayerMax;l++)
{
mBlendMaps[l] = terrain->getLayerBlendMap(l);
mBlendDatas[l] = mBlendMaps[l]->getBlendPointer();
}
float mRatio = (float)BRUSH_DATA_SIZE / (float)mBrushSize;
float brushPos;
int mapPos;
int right = brushrect.right;
brushrect.right = BRUSH_DATA_SIZE - brushrect.left;
brushrect.left = BRUSH_DATA_SIZE - right;
float factor = mBrushIntensity * timePassed * 0.2f;
if(!mEditDirection)
{
int u;
float sum;
for(int j = maprect.top;j < maprect.bottom;j++)
{
brushPos = (brushrect.top + (int)((j - maprect.top) * mRatio)) * BRUSH_DATA_SIZE;
brushPos += brushrect.right;
mapPos = (j * mBlendMapSize) + maprect.left;
for(int i = maprect.left;i < maprect.right;i++)
{
brushPos -= mRatio;
assert(mapPos < (mBlendMapSize * mBlendMapSize) && mapPos >= 0);
assert((int)brushPos < (BRUSH_DATA_SIZE * BRUSH_DATA_SIZE) && (int)brushPos >= 0);
sum = 0.0f;
for(u = mLayer + 1;u < mLayerMax;u++)
sum += mBlendDatas[u][mapPos];
float val = mCurrentBlendData[mapPos] + (mBrushData[(int)brushPos] * factor);
sum += val;
if(sum > 1.0f)
{
float normfactor = 1.0f / (float)sum;
mCurrentBlendData[mapPos] = val * normfactor;
for(u = mLayer + 1;u < mLayerMax;u++)
mBlendDatas[u][mapPos] *= normfactor;
}
else
mCurrentBlendData[mapPos] = val;
++mapPos;
}
}
for(u = mLayer;u < mLayerMax;u++)
{
mBlendMaps[u]->dirtyRect(maprect);
mBlendMaps[u]->update();
}
}
else
{
for(int j = maprect.top;j < maprect.bottom;j++)
{
brushPos = (brushrect.top + (int)((j - maprect.top) * mRatio)) * BRUSH_DATA_SIZE;
brushPos += brushrect.right;
mapPos = (j * mBlendMapSize) + maprect.left;
for(int i = maprect.left;i < maprect.right;i++)
{
brushPos -= mRatio;
assert(mapPos < (mBlendMapSize * mBlendMapSize) && mapPos >= 0);
assert((int)brushPos < (BRUSH_DATA_SIZE * BRUSH_DATA_SIZE) && (int)brushPos >= 0);
float val = mCurrentBlendData[mapPos] - (mBrushData[(int)brushPos] * factor);
if(val < 0.0f)
val = 0.0f;
mCurrentBlendData[mapPos] = val;
++mapPos;
}
}
mCurrentBlendMap->dirtyRect(maprect);
mCurrentBlendMap->update();
}
}
CoiHandle terrain_get_layer_blend_map(CoiHandle terrain_handle, int layer_index)
{
Ogre::Terrain* terrain = reinterpret_cast<Ogre::Terrain*>(terrain_handle);
return terrain->getLayerBlendMap(layer_index);
}
//-----------------------------------------------------------------------------------------
bool CTerrainGroupEditor::update(float timePassed)
{
if(mEditActive && mDecalFrustum->getVisible())
{
mEditDirection = CViewportEditor::mViewKeyboard[CViewportEditor::mSpecial.SPK_REVERSE_UPDATE];
Ogre::Vector3 cursorpos = mDecalNode->getPosition();
Ogre::Terrain *terrain;
Ogre::Vector3 editpos;
Ogre::TerrainGroup::TerrainList terrainList;
Ogre::Real halfBrushSizeWorldSpace = (Ogre::Real)(mWorldSize->get() * mBrushSize) / (Ogre::Real)(mMapSize->get()) / 2.0f;
Ogre::Sphere sphere(cursorpos, halfBrushSizeWorldSpace);
mHandle->sphereIntersects(sphere, &terrainList);
mModificationRect.merge(Ogre::Rect(cursorpos.x - halfBrushSizeWorldSpace, cursorpos.z - halfBrushSizeWorldSpace, cursorpos.x + halfBrushSizeWorldSpace, cursorpos.z + halfBrushSizeWorldSpace));
bool groupUpdateNeeded = false;
float avg_total = 0.0f;
float sample_count_total = 0;
if(mEditMode == EM_SMOOTH)
{
for (Ogre::TerrainGroup::TerrainList::iterator ti = terrainList.begin(); ti != terrainList.end(); ++ti)
{
terrain = *ti;
terrain->getTerrainPosition(cursorpos, &editpos);
CTerrainPageEditor *terED = 0;
for(NameObjectPairList::iterator it = mChildren.begin(); it != mChildren.end();it++)
{
if(it->second->getHandle() == (void*)terrain)
{
terED = static_cast<CTerrainPageEditor*>(it->second);
break;
}
}
float avg = 0.0f;
int sample_count = 0;
_calculatesmoothingfactor(terED, editpos, avg, sample_count);
avg_total += avg;
sample_count_total += sample_count;
}
}
for (Ogre::TerrainGroup::TerrainList::iterator ti = terrainList.begin(); ti != terrainList.end(); ++ti)
{
terrain = *ti;
terrain->getTerrainPosition(cursorpos, &editpos);
CTerrainPageEditor *terED = 0;
for(NameObjectPairList::iterator it = mChildren.begin(); it != mChildren.end();it++)
{
if(it->second->getHandle() == (void*)terrain)
{
terED = static_cast<CTerrainPageEditor*>(it->second);
break;
}
}
if(mEditMode == EM_DEFORM)
{
_deform(terED, editpos, timePassed);
groupUpdateNeeded |= true;
}
else if(mEditMode == EM_SMOOTH)
{
if(sample_count_total)
{
_smooth(terED, editpos, avg_total / (float)sample_count_total, timePassed);
groupUpdateNeeded |= true;
}
}
else if(mEditMode == EM_SPLAT)
_splat(terED, editpos, timePassed);
else if(mEditMode == EM_PAINT)
_paint(terED, editpos, timePassed);
else if(mEditMode == EM_SPLATGRASS)
_splatGrass(terED, editpos, timePassed);
}
if(groupUpdateNeeded)
mHandle->update();
mOgitorsRoot->SetSceneModified(true);
}
if(mPGHandle)
mPGHandle->update();
return false;
}
//-----------------------------------------------------------------------------------------
void CTerrainGroupEditor::_paint(CTerrainPageEditor *handle, Ogre::Vector3 &editpos, float timePassed)
{
Ogre::Rect brushrect, maprect;
int ColourMapSize = mColourMapTextureSize->get();
editpos.x *= (float)ColourMapSize;
editpos.y = (1.0f - editpos.y) * (float)ColourMapSize;
if(!_getEditRect(editpos, brushrect, maprect, ColourMapSize))
return;
handle->_notifyModification(0, maprect);
Ogre::Terrain *terrain = static_cast<Ogre::Terrain*>(handle->getHandle());
float mRatio = (float)BRUSH_DATA_SIZE / (float)mBrushSize;
float brushPos;
int mapPos;
int buffersize = terrain->getGlobalColourMap()->getBuffer()->getSizeInBytes();
int spacing = buffersize / (ColourMapSize * ColourMapSize);
unsigned char *data = (unsigned char *)terrain->getGlobalColourMap()->getBuffer()->lock(0, buffersize, Ogre::HardwareBuffer::HBL_NORMAL);
Ogre::PixelFormat pf = terrain->getGlobalColourMap()->getBuffer()->getFormat();
Ogre::ColourValue colVal;
int right = brushrect.right;
brushrect.right = BRUSH_DATA_SIZE - brushrect.left;
brushrect.left = BRUSH_DATA_SIZE - right;
float factor = std::min(mBrushIntensity * timePassed * 0.2f, 1.0f);
float bfactor;
if(!mEditDirection)
{
for(int j = maprect.top;j < maprect.bottom;j++)
{
brushPos = (brushrect.top + (int)((j - maprect.top) * mRatio)) * BRUSH_DATA_SIZE;
brushPos += brushrect.right;
mapPos = (j * ColourMapSize) + maprect.left;
for(int i = maprect.left;i < maprect.right;i++)
{
brushPos -= mRatio;
assert(mapPos < (ColourMapSize * ColourMapSize) && mapPos >= 0);
assert((int)brushPos < (BRUSH_DATA_SIZE * BRUSH_DATA_SIZE) && (int)brushPos >= 0);
bfactor = mBrushData[(int)brushPos] * factor;
Ogre::PixelUtil::unpackColour(&colVal, pf, (void*)&data[mapPos * spacing]);
colVal.r = colVal.r + ((mColour.r - colVal.r) * bfactor);
colVal.g = colVal.g + ((mColour.g - colVal.g) * bfactor);
colVal.b = colVal.b + ((mColour.b - colVal.b) * bfactor);
Ogre::PixelUtil::packColour(colVal, pf, (void*)&data[mapPos * spacing]);
++mapPos;
}
}
}
else
{
for(int j = maprect.top;j < maprect.bottom;j++)
{
brushPos = (brushrect.top + (int)((j - maprect.top) * mRatio)) * BRUSH_DATA_SIZE;
brushPos += brushrect.right;
mapPos = (j * ColourMapSize) + maprect.left;
for(int i = maprect.left;i < maprect.right;i++)
{
brushPos -= mRatio;
assert(mapPos < (ColourMapSize * ColourMapSize) && mapPos >= 0);
assert((int)brushPos < (BRUSH_DATA_SIZE * BRUSH_DATA_SIZE) && (int)brushPos >= 0);
bfactor = mBrushData[(int)brushPos] * factor;
Ogre::PixelUtil::unpackColour(&colVal, pf, (void*)&data[mapPos * spacing]);
colVal.r = colVal.r + ((1.0f - colVal.r) * bfactor);
colVal.g = colVal.g + ((1.0f - colVal.g) * bfactor);
colVal.b = colVal.b + ((1.0f - colVal.b) * bfactor);
Ogre::PixelUtil::packColour(colVal, pf, (void*)&data[mapPos * spacing]);
++mapPos;
}
}
}
terrain->getGlobalColourMap()->getBuffer()->unlock();
}
//-----------------------------------------------------------------------------------------
void CTerrainGroupEditor::_splat(CTerrainPageEditor *handle, Ogre::Vector3 &editpos, float timePassed)
{
Ogre::Rect brushrect, maprect;
Ogre::Terrain *terrain = static_cast<Ogre::Terrain*>(handle->getHandle());
int mBlendMapSize = terrain->getLayerBlendMapSize();
editpos.x *= (float)mBlendMapSize;
editpos.y = (1.0f - editpos.y) * (float)mBlendMapSize;
if(!_getEditRect(editpos, brushrect, maprect, mBlendMapSize))
return;
int mLayer = 0;
mLayer = handle->_getLayerID(mTextureDiffuse, mTextureNormal, mEditDirection);
if(mLayer == -1)
{
Ogre::String msg = handle->getName() + " already has the maximum number of supported texture layers.";
mSystem->DisplayMessageDialog(OTR(msg), DLGTYPE_OK);
return;
}
else if(mLayer == 0)
{
Ogre::TerrainLayerBlendMap *mBlendMaps[128];
float *mBlendDatas[128];
int mLayerMax = terrain->getLayerCount();
for(int l = 1;l < mLayerMax;l++)
{
mBlendMaps[l] = terrain->getLayerBlendMap(l);
mBlendDatas[l] = mBlendMaps[l]->getBlendPointer();
}
float maxVal;
int u;
int num;
for(u = mLayerMax-1;u > 0;u--)
{
mLayer = u;
maxVal = 0.0f;
for(int j = maprect.top;j < maprect.bottom;j++)
{
int mapPos = (j * mBlendMapSize) + maprect.left;
for(int i = maprect.left;i < maprect.right;i++)
{
maxVal += mBlendDatas[u][mapPos];
}
}
num = (maprect.top*mBlendMapSize);
num = (num+maprect.right)-(num+maprect.left);
if (maxVal > num)
break;
}
if (mLayer == 0)
return;
mEditDirection = true;
}
handle->_notifyModification(mLayer, maprect);
int mLayerMax = terrain->getLayerCount();
Ogre::TerrainLayerBlendMap *mBlendMaps[128];
float *mBlendDatas[128];
Ogre::TerrainLayerBlendMap *mCurrentBlendMap = terrain->getLayerBlendMap(mLayer);
float *mCurrentBlendData = mCurrentBlendMap->getBlendPointer();
for(int l = mLayer;l < mLayerMax;l++)
{
mBlendMaps[l] = terrain->getLayerBlendMap(l);
mBlendDatas[l] = mBlendMaps[l]->getBlendPointer();
}
float mRatio = (float)BRUSH_DATA_SIZE / (float)mBrushSize;
float brushPos;
int mapPos;
int right = brushrect.right;
brushrect.right = BRUSH_DATA_SIZE - brushrect.left;
brushrect.left = BRUSH_DATA_SIZE - right;
float factor = mBrushIntensity * timePassed * 0.2f;
if(!mEditDirection)
{
int u;
float sum;
for(int j = maprect.top;j < maprect.bottom;j++)
{
brushPos = (brushrect.top + (int)((j - maprect.top) * mRatio)) * BRUSH_DATA_SIZE;
brushPos += brushrect.right;
mapPos = (j * mBlendMapSize) + maprect.left;
for(int i = maprect.left;i < maprect.right;i++)
{
brushPos -= mRatio;
assert(mapPos < (mBlendMapSize * mBlendMapSize) && mapPos >= 0);
assert((int)brushPos < (BRUSH_DATA_SIZE * BRUSH_DATA_SIZE) && (int)brushPos >= 0);
sum = 0.0f;
for(u = mLayer + 1;u < mLayerMax;u++)
sum += mBlendDatas[u][mapPos];
float val = mCurrentBlendData[mapPos] + (mBrushData[(int)brushPos] * factor);
sum += val;
if(sum > 1.0f)
{
float normfactor = 1.0f / (float)sum;
mCurrentBlendData[mapPos] = val * normfactor;
for(u = mLayer + 1;u < mLayerMax;u++)
mBlendDatas[u][mapPos] *= normfactor;
}
else
mCurrentBlendData[mapPos] = val;
++mapPos;
}
}
for(u = mLayer;u < mLayerMax;u++)
{
mBlendMaps[u]->dirtyRect(maprect);
mBlendMaps[u]->update();
}
}
else
{
for(int j = maprect.top;j < maprect.bottom;j++)
{
brushPos = (brushrect.top + (int)((j - maprect.top) * mRatio)) * BRUSH_DATA_SIZE;
brushPos += brushrect.right;
mapPos = (j * mBlendMapSize) + maprect.left;
for(int i = maprect.left;i < maprect.right;i++)
{
brushPos -= mRatio;
assert(mapPos < (mBlendMapSize * mBlendMapSize) && mapPos >= 0);
assert((int)brushPos < (BRUSH_DATA_SIZE * BRUSH_DATA_SIZE) && (int)brushPos >= 0);
float val = mCurrentBlendData[mapPos] - (mBrushData[(int)brushPos] * factor);
if(val < 0.0f)
val = 0.0f;
mCurrentBlendData[mapPos] = val;
++mapPos;
}
}
mCurrentBlendMap->dirtyRect(maprect);
mCurrentBlendMap->update();
}
}
float terrain_get_height_at_terrain_position(CoiHandle terrain_handle, float x, float y)
{
Ogre::Terrain* terrain = reinterpret_cast<Ogre::Terrain*>(terrain_handle);
return terrain->getHeightAtTerrainPosition(x, y);
}
int _tmain(int argc, _TCHAR* argv[])
{
// ------------------------- Check for command line argument -------------------------------------------
if (! argv[1])
{
printf("\n");
printf("Missing argument.\nExample: \"Converter.exe job1.cfg\"");
return 0;
}
// ------------------------- Basic Ogre Engine initialization -------------------------------------------
Ogre::Root* root = new Ogre::Root;
Ogre::RenderSystem* rendersys = root->getRenderSystemByName("Direct3D9 Rendering Subsystem");
rendersys->setConfigOption("Full Screen", "No");
rendersys->setConfigOption("Video Mode", "800 x 600 @ 32-bit colour");
root->setRenderSystem(rendersys);
Ogre::ResourceGroupManager::getSingleton().addResourceLocation("resource", "FileSystem", "General");
Ogre::ResourceGroupManager::getSingleton().initialiseAllResourceGroups();
root->initialise(false);
Ogre::RenderWindow* window = root->createRenderWindow("RAW2OGT", 800, 600, false);
Ogre::SceneManager* scenemgr = root->createSceneManager(Ogre::SceneType::ST_GENERIC);
Ogre::Camera* camera = scenemgr->createCamera("camera");
Ogre::Viewport* viewport = window->addViewport(camera);
/*Ogre::Vector3 lightdir(0, -0.3, 0.75);
lightdir.normalise();
Ogre::Light* l = scenemgr->createLight("tstLight");
l->setType(Ogre::Light::LT_DIRECTIONAL);
l->setDirection(lightdir);
l->setDiffuseColour(Ogre::ColourValue(1.0, 1.0, 1.0));
l->setSpecularColour(Ogre::ColourValue(0.4, 0.4, 0.4));*/
scenemgr->setAmbientLight(Ogre::ColourValue(0.7, 0.7, 0.7));
// --------------------------------- Start convert ----------------------------------------------------
// Load job config
Ogre::ConfigFile* terrainconfig = OGRE_NEW Ogre::ConfigFile();
terrainconfig->loadDirect(argv[1]);
// Load info from [general] block
Ogre::String heightmapfile = terrainconfig->getSetting("heightmap", "general");
Ogre::Real heightmapscale = Ogre::StringConverter::parseReal(terrainconfig->getSetting("heightmapscale", "general"));
Ogre::Real heightmapoffset = Ogre::StringConverter::parseReal(terrainconfig->getSetting("heightmapoffset", "general"));
Ogre::uint16 terrainsize = Ogre::StringConverter::parseUnsignedInt(terrainconfig->getSetting("terrainsize", "general"));
Ogre::Real worldsize = Ogre::StringConverter::parseReal(terrainconfig->getSetting("worldsize", "general"));
Ogre::uint16 layercount = Ogre::StringConverter::parseUnsignedInt(terrainconfig->getSetting("layercount", "general"));
// initialise stream to heightmapfile
Ogre::DataStreamPtr stream = Ogre::ResourceGroupManager::getSingleton().openResource(heightmapfile, "General");
size_t size = stream.get()->size();
// verify size
if(size != terrainsize * terrainsize * 4)
OGRE_EXCEPT( Ogre::Exception::ERR_INTERNAL_ERROR, "Size of stream does not match terrainsize!", "TerrainPage" );
// load to buffer
float* buffer = OGRE_ALLOC_T(float, size, Ogre::MEMCATEGORY_GENERAL);
stream->read(buffer, size);
// apply scale and offset
for(int i=0;i<terrainsize*terrainsize;i++)
{
buffer[i] = (buffer[i] + heightmapoffset) * heightmapscale;
}
// Terrain initialization
Ogre::TerrainGlobalOptions* terrainglobals = OGRE_NEW Ogre::TerrainGlobalOptions();
terrainglobals->setMaxPixelError(1);
//terrainglobals->setCompositeMapDistance(30000);
//terrainglobals->setLightMapDirection(lightdir);
//terrainglobals->setCompositeMapAmbient(scenemgr->getAmbientLight());
//terrainglobals->setCompositeMapDiffuse(l->getDiffuseColour());
Ogre::TerrainMaterialGeneratorA::SM2Profile* pMatProfile =
static_cast<Ogre::TerrainMaterialGeneratorA::SM2Profile*>(terrainglobals->getDefaultMaterialGenerator()->getActiveProfile());
pMatProfile->setLightmapEnabled(false);
pMatProfile->setCompositeMapEnabled(false);
Ogre::TerrainGroup* terraingroup = OGRE_NEW Ogre::TerrainGroup(scenemgr, Ogre::Terrain::ALIGN_X_Z, terrainsize, worldsize);
terraingroup->setFilenameConvention(Ogre::String("terrain"), Ogre::String("ogt"));
terraingroup->setOrigin(Ogre::Vector3::ZERO);
Ogre::Terrain* terrain = OGRE_NEW Ogre::Terrain(scenemgr);
// terrainsettings
Ogre::Terrain::ImportData& imp = terraingroup->getDefaultImportSettings();
imp.terrainSize = terrainsize;
imp.worldSize = worldsize;
imp.minBatchSize = 33;
imp.maxBatchSize = 65;
// use float RAW heightmap as input
imp.inputFloat = buffer;
// process texture layers
imp.layerList.resize(layercount);
Ogre::StringVector blendmaps(layercount);
for(int i=0;i<layercount;i++)
{
// load layer info
Ogre::String sectionStr = Ogre::StringConverter::toString(i);
Ogre::Real layerworldsize = Ogre::StringConverter::parseReal(terrainconfig->getSetting("worldsize", sectionStr));
if (i==0)
{
// no blendmap at layer 0 (baselayer)
Ogre::String specular = terrainconfig->getSetting("specular", sectionStr);
Ogre::String normal = terrainconfig->getSetting("normal", sectionStr);
// add layer
imp.layerList[i].textureNames.push_back(specular);
imp.layerList[i].textureNames.push_back(normal);
imp.layerList[i].worldSize = layerworldsize;
}
else
{
Ogre::String specular = terrainconfig->getSetting("specular", sectionStr);
Ogre::String normal = terrainconfig->getSetting("normal", sectionStr);
Ogre::String blend = terrainconfig->getSetting("blend", sectionStr);
// add layer
imp.layerList[i].textureNames.push_back(specular);
imp.layerList[i].textureNames.push_back(normal);
imp.layerList[i].worldSize = layerworldsize;
blendmaps[i] = blend;
}
}
// load the terrain
terrain->prepare(imp);
terrain->load();
// load those blendmaps into the layers
for(int j = 1;j < terrain->getLayerCount();j++)
{
Ogre::TerrainLayerBlendMap *blendmap = terrain->getLayerBlendMap(j);
Ogre::Image img;
img.load(blendmaps[j],"General");
int blendmapsize = terrain->getLayerBlendMapSize();
if(img.getWidth() != blendmapsize)
img.resize(blendmapsize, blendmapsize);
float *ptr = blendmap->getBlendPointer();
Ogre::uint8 *data = static_cast<Ogre::uint8*>(img.getPixelBox().data);
for(int bp = 0;bp < blendmapsize * blendmapsize;bp++)
ptr[bp] = static_cast<float>(data[bp]) / 255.0f;
blendmap->dirty();
blendmap->update();
}
// create filename for writing
int pos = heightmapfile.find_last_of('.');
if (pos < 0)
heightmapfile = heightmapfile + ".ogt";
else
heightmapfile = heightmapfile.substr(0, pos) + ".ogt";
// save as Ogre .OGT
terrain->save(heightmapfile);
Ogre::LogManager::getSingletonPtr()->logMessage(Ogre::LogMessageLevel::LML_NORMAL, heightmapfile + " successfully written.");
// debug viewing (exit with CTRL+C)
camera->setPosition(-terrainsize, 7000, -terrainsize);
camera->lookAt(terrainsize/2,0,terrainsize/2);
root->startRendering();
return 0;
}
const std::string ManipulatorTerrain::GetLayerNormalMap( int nLayer ) const
{
Ogre::Terrain* pTerrain = ManipulatorSystem.GetScene()->GetTerrain();
assert(nLayer >=0 && nLayer<(int)pTerrain->getLayerCount());
return pTerrain->getLayerTextureName(nLayer, 1);
}
float ManipulatorTerrain::GetLayerTexWorldSize( int nLayer )
{
Ogre::Terrain* pTerrain = ManipulatorSystem.GetScene()->GetTerrain();
assert(nLayer >=0 && nLayer<(int)pTerrain->getLayerCount());
return pTerrain->getLayerWorldSize(nLayer);
}
float MyTerrain::GetImageXFromWorldX( float x )
{
Ogre::Terrain* terrain = m_pTerrainGroup->getTerrain(0,0);
return x*m_EdgeImage.width()/(float)terrain->getWorldSize();
}
void ManipulatorTerrain::SetLayerTexWorldSize(int nLayer, float fSize)
{
Ogre::Terrain* pTerrain = ManipulatorSystem.GetScene()->GetTerrain();
assert(nLayer >=0 && nLayer<(int)pTerrain->getLayerCount());
pTerrain->setLayerWorldSize(nLayer, fSize);
}
void ManipulatorTerrain::OnEdit( float dt )
{
assert(m_curEditMode != eTerrainEditMode_None);
//第0层不能编辑BlendMap,应该从第1层开始
if(m_curEditMode == eTerrainEditMode_Splat && m_curEditLayer == 0)
return;
Ogre::Terrain* pTerrain = ManipulatorSystem.GetScene()->GetTerrain();
const Vector3 brushPos = m_brush[m_curBrushIndex]->GetPosition();
Vector3 tsPos;
pTerrain->getTerrainPosition(brushPos, &tsPos);
float brushSizeW, brushSizeH;
m_brush[m_curBrushIndex]->GetDimension(brushSizeW, brushSizeH);
float worldSize = GetWorldSize();
brushSizeW /= worldSize;
brushSizeH /= worldSize;
int multiplier;
Ogre::TerrainLayerBlendMap* layer = nullptr;
if(m_curEditMode == eTerrainEditMode_Deform)
{
multiplier = pTerrain->getSize() - 1;
}
else
{
multiplier = pTerrain->getLayerBlendMapSize();
layer = pTerrain->getLayerBlendMap(m_curEditLayer);
}
long startx = (long)((tsPos.x - brushSizeW / 2) * multiplier);
long starty = (long)((tsPos.y - brushSizeH / 2) * multiplier);
long endx = (long)((tsPos.x + brushSizeW / 2) * multiplier);
long endy= (long)((tsPos.y + brushSizeH / 2) * multiplier);
startx = max(startx, 0L);
starty = max(starty, 0L);
endx = min(endx, (long)multiplier);
endy = min(endy, (long)multiplier);
for (long y = starty; y <= endy; ++y)
{
for (long x = startx; x <= endx; ++x)
{
float tsXdist = (x / multiplier) - tsPos.x;
float tsYdist = (y / multiplier) - tsPos.y;
if(m_curEditMode == eTerrainEditMode_Deform)
{
float* pData = pTerrain->getHeightData();
pData[y*GetMapSize()+x] += 100.0f * dt;
}
else
{
float* pData = layer->getBlendPointer();
size_t imgY = multiplier - y;
float newValue = pData[imgY*multiplier+x] + dt;
newValue = Ogre::Math::Clamp(newValue, 0.0f, 1.0f);
pData[imgY*multiplier+x] = newValue;
}
}
}
if(m_curEditMode == eTerrainEditMode_Deform)
{
Ogre::Rect rect(startx, starty, endx, endy);
pTerrain->dirtyRect(rect);
pTerrain->update();
}
else
{
size_t imgStartY = multiplier - starty;
size_t imgEndY = multiplier - endy;
Ogre::Rect rect(startx, min(imgStartY,imgEndY), endx, max(imgStartY,imgEndY));
layer->dirtyRect(rect);
layer->update();
}
}
void TerrainManager::terrainInit(Ogre::String file, OgreManager* o)
{
_OgreManager = o;
initialiseResources();
createLight();
setGlobalOptions();
_TerrainGroup = OGRE_NEW Ogre::TerrainGroup(_OgreManager->getSceneManager(), Ogre::Terrain::ALIGN_X_Z, 513, 12000.0f);
_TerrainGroup->setFilenameConvention(Ogre::String("GameTerrain"), Ogre::String("dat"));
_TerrainGroup->setOrigin(Ogre::Vector3::ZERO);
setDefaultImportSettings();
bool lTerrainsImported = false;
for (long x = 0; x <= 0; ++x)
{
for (long y = 0; y <= 0; ++y)
{
//Define terrain function
Ogre::String filename = _TerrainGroup->generateFilename(x, y);
if (Ogre::ResourceGroupManager::getSingleton().resourceExists(_TerrainGroup->getResourceGroup(), filename))
{
_TerrainGroup->defineTerrain(x, y);
}
else
{
Ogre::Image img;
//Get terrain image
Ogre::String tempFile = Ogre::StringConverter::toString(x * 10 + y);
tempFile.append(".bmp");
img.load("terrain.bmp", Ogre::String("TerrainResources"));
if (x % 2 != 0)
img.flipAroundY();
if (y % 2 != 0)
img.flipAroundX();
//Get terrain image end
_TerrainGroup->defineTerrain(x, y, &img);
lTerrainsImported = true;
}
//Define terrain function end
}
}
_TerrainGroup->loadAllTerrains(true);
if (lTerrainsImported)
{
Ogre::TerrainGroup::TerrainIterator ti = _TerrainGroup->getTerrainIterator();
while(ti.hasMoreElements())
{
Ogre::Terrain* t = ti.getNext()->instance;
//Init blend maps function start
Ogre::TerrainLayerBlendMap* blendMap0 = t->getLayerBlendMap(1);
Ogre::TerrainLayerBlendMap* blendMap1 = t->getLayerBlendMap(2);
Ogre::Real minHeight0 = -10;
Ogre::Real fadeDist0 = 0;//40;
Ogre::Real minHeight1 = -10;
Ogre::Real fadeDist1 = 0;//15;
float* pBlend0 = blendMap0->getBlendPointer();
float* pBlend1 = blendMap1->getBlendPointer();
for (Ogre::uint16 y = 0; y < t->getLayerBlendMapSize(); ++y)
{
for (Ogre::uint16 x = 0; x < t->getLayerBlendMapSize(); ++x)
{
Ogre::Real tx, ty;
blendMap0->convertImageToTerrainSpace(x, y, &tx, &ty);
Ogre::Real height = t->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();
//Init blend maps end
}
}
_TerrainGroup->freeTemporaryResources();
_OgreManager->getSceneManager()->setSkyBox(true, "Examples/EarlyMorningSkyBox", 5000, true, Ogre::Quaternion::IDENTITY, "GameResources");
}
int terrain_get_layer_blend_map_size(CoiHandle terrain_handle)
{
Ogre::Terrain* terrain = reinterpret_cast<Ogre::Terrain*>(terrain_handle);
return terrain->getLayerBlendMapSize();
}
float MyTerrain::GetImageYFromWorldY( float y )
{
Ogre::Terrain* terrain = m_pTerrainGroup->getTerrain(0,0);
return y*m_EdgeImage.height()/(float)terrain->getWorldSize();
}