void SnowTerrain::initBlendMaps(Terrain* terrain)
{
TextureLayerFileList blendImages = mSnowConfig->terrainSettings.textureBlendFileList;
// load those blendmaps into the layers
for(int j = 0;j < terrain->getLayerCount();j++)
{
// skip first layer
if(j==0)
continue;
// no blend map for this layer
if(blendImages.size() >= j && blendImages[j].length() == 0)
continue;
Ogre::TerrainLayerBlendMap *blendmap = terrain->getLayerBlendMap(j);
Ogre::Image img;
img.load(blendImages[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();
}
}
void DotSceneLoader::processBlendmaps(rapidxml::xml_node<>* XMLNode)
{
int pageX = Ogre::StringConverter::parseInt(XMLNode->first_attribute("pageX")->value());
int pageY = Ogre::StringConverter::parseInt(XMLNode->first_attribute("pageY")->value());
Ogre::String filename = mTerrainGroup->generateFilename(pageX, pageY);
// skip this is terrain page has been saved already
if (!Ogre::ResourceGroupManager::getSingleton().resourceExists(mTerrainGroup->getResourceGroup(), filename))
{
rapidxml::xml_node<>* pElement;
// Process blendmaps (*)
std::vector<Ogre::String> blendMaps;
rapidxml::xml_node<>* pBlendmap;
pElement = XMLNode->first_node("blendMaps");
pBlendmap = pElement->first_node("blendMap");
while(pBlendmap)
{
blendMaps.push_back(getAttrib(pBlendmap, "texture",""));
pBlendmap = pBlendmap->next_sibling("blendMap");
}
for(int j = 1;j < mTerrainGroup->getTerrain(pageX, pageY)->getLayerCount();j++)
{
Ogre::TerrainLayerBlendMap *blendmap = mTerrainGroup->getTerrain(pageX, pageY)->getLayerBlendMap(j);
Ogre::Image img;
img.load(blendMaps[j-1],"General");
int blendmapsize = mTerrainGroup->getTerrain(pageX, pageY)->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();
}
}
}
//-----------------------------------------------------------------------------------------
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();
}
}
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 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();
}
}
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;
}