Пример #1
0
Ogre::TexturePtr Simple::updateShadowTexture(Ogre::MaterialPtr material, const TerrainPageShadow* terrainPageShadow, std::set<std::string>& managedTextures) const
{
	auto shadowTextureName = getShadowTextureName(material);

	Ogre::TexturePtr texture = static_cast<Ogre::TexturePtr>(Ogre::Root::getSingletonPtr()->getTextureManager()->getByName(shadowTextureName));
	if (texture.isNull()) {
		texture = Ogre::Root::getSingletonPtr()->getTextureManager()->createManual(shadowTextureName, "General", Ogre::TEX_TYPE_2D, mPage.getBlendMapSize(), mPage.getBlendMapSize(), 1, Ogre::PF_L8, Ogre::TU_DYNAMIC_WRITE_ONLY);
		managedTextures.insert(texture->getName());
	}

	Ogre::Image ogreImage;
	terrainPageShadow->loadIntoImage(ogreImage);

	texture->loadImage(ogreImage);

	//blit the whole image to the hardware buffer
	Ogre::PixelBox sourceBox(ogreImage.getPixelBox());
	//blit for each mipmap
	for (unsigned int i = 0; i <= texture->getNumMipmaps(); ++i) {
		Ogre::HardwarePixelBufferSharedPtr hardwareBuffer(texture->getBuffer(0, i));
		hardwareBuffer->blitFromMemory(sourceBox);
	}

	return texture;
}
Пример #2
0
	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();
		}
	}
Пример #3
0
bool ShadowUpdateTask::executeTaskInMainThread()
{
	if (!mPageGeometries.empty()) {
		auto pageGeometry = mPageGeometries.back();
		mPageGeometries.pop_back();
		auto& page = pageGeometry->getPage();
		if (page.getSurface()) {
			auto shadow = page.getSurface()->getShadow();
			if (shadow) {
				auto& shadowTextureName = shadow->getShadowTextureName();
				if (!shadowTextureName.empty()) {
					Ogre::TexturePtr texture = Ogre::Root::getSingletonPtr()->getTextureManager()->getByName(shadowTextureName, Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
					if (texture) {
						Ogre::Image ogreImage;
						shadow->loadIntoImage(ogreImage);

						texture->loadImage(ogreImage);

						//blit the whole image to the hardware buffer
						Ogre::PixelBox sourceBox(ogreImage.getPixelBox());
						//blit for each mipmap
						for (unsigned int i = 0; i <= texture->getNumMipmaps(); ++i) {
							Ogre::HardwarePixelBufferSharedPtr hardwareBuffer(texture->getBuffer(0, i));
							hardwareBuffer->blitFromMemory(sourceBox);
						}
					}
				}
			}
		}
	}
	return mPageGeometries.empty();
}
Пример #4
0
Ogre::TexturePtr Simple::updateShadowTexture(Ogre::MaterialPtr material, const TerrainPageShadow* terrainPageShadow)
{
	//we need an unique name for our alpha texture
	std::stringstream shadowTextureNameSS;
	shadowTextureNameSS << material->getName() << "_shadow";
	const Ogre::String shadowTextureName(shadowTextureNameSS.str());

	Ogre::TexturePtr texture = static_cast<Ogre::TexturePtr> (Ogre::Root::getSingletonPtr()->getTextureManager()->getByName(shadowTextureName));
	if (texture.isNull()) {
		texture = Ogre::Root::getSingletonPtr()->getTextureManager()->createManual(shadowTextureName, "General", Ogre::TEX_TYPE_2D, mPage.getAlphaTextureSize(), mPage.getAlphaTextureSize(), 1, Ogre::PF_L8, Ogre::TU_DYNAMIC_WRITE_ONLY);
	}

	Ogre::Image ogreImage;
	terrainPageShadow->loadIntoImage(ogreImage);

	texture->loadImage(ogreImage);

	//blit the whole image to the hardware buffer
	Ogre::PixelBox sourceBox(ogreImage.getPixelBox());
	//blit for each mipmap
	for (unsigned int i = 0; i <= texture->getNumMipmaps(); ++i) {
		Ogre::HardwarePixelBufferSharedPtr hardwareBuffer(texture->getBuffer(0, i));
		hardwareBuffer->blitFromMemory(sourceBox);
	}

	return texture;
}
//-----------------------------------------------------------------------------------------
void CTerrainGroupEditor::importFullTerrainFromHeightMap()
{
    UTFStringVector extlist;
    extlist.push_back(OTR("PNG Grayscale"));
    extlist.push_back("*.png");
    extlist.push_back(OTR("Raw 32bit Float File"));
    extlist.push_back("*.raw;*.ohm;*.f32;*.r32");

    Ogre::UTFString defaultPath = mSystem->GetSetting("system", "ExportTerrainPath", "");

    Ogre::String filename = mSystem->DisplayOpenDialog(OTR("Import Heightmap"), extlist, defaultPath);
    if(filename == "") 
        return;

    mSystem->SetSetting("system", "ExportTerrainPath", OgitorsUtils::ExtractFilePath(filename));

    Ogre::NameValuePairList params;
    if(!mSystem->DisplayImportHeightMapDialog(params))
        return;
    
    Ogre::Real fScale = Ogre::StringConverter::parseReal(params["scale"]);
    Ogre::Real fBias = Ogre::StringConverter::parseReal(params["bias"]);
    Ogre::String normal = params["normal"];
    Ogre::String diffuse = params["diffuse"];
    bool flipV = Ogre::StringConverter::parseBool(params["inverted"]);

    float *data = 0;
    float *flipBV = 0;

    Ogre::String namePart = OgitorsUtils::ExtractFileName(filename);
    namePart.erase(0, namePart.find("."));

    int imgW = 0;
    int imgH = 0;

    if(namePart == ".png")
    {
        std::fstream fstr(filename.c_str(), std::ios::in|std::ios::binary);
        Ogre::DataStreamPtr stream = Ogre::DataStreamPtr(OGRE_NEW Ogre::FileStreamDataStream(&fstr, false));

        Ogre::Image img;
        img.load(stream);

        data = OGRE_ALLOC_T(float, img.getWidth() * img.getHeight(), Ogre::MEMCATEGORY_GEOMETRY);
        Ogre::PixelBox pb(img.getWidth(), img.getHeight(), 1, Ogre::PF_FLOAT32_R, data);
        Ogre::PixelUtil::bulkPixelConversion(img.getPixelBox(), pb);

        imgW = img.getWidth();
        imgH = img.getHeight();
        
        img.freeMemory();
        stream.setNull();
    }
Пример #6
0
/****************************************************************************
**
** Copyright (C) 2016 - 2017
**
** This file is part of the Magus toolkit
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
****************************************************************************/

#include "constants.h"
#include "texturelayer.h"
#include "OgreHlmsPbs.h"
#include "OgreHlmsManager.h"
#include "OgreLogManager.h"
#include "OgreStringConverter.h"
#include <fstream>
#include <ctime>

//****************************************************************************/
TextureLayer::TextureLayer(void) :
    mTextureOnWhichIsPaintedWidth(0),
    mTextureOnWhichIsPaintedHeight(0),
    mTextureOnWhichIsPaintedHasAlpha(false),
    mNumMipMaps(0),
    mTextureTypeDefined(false),
    mMaxSequence(0)
{
    mTextureType = Ogre::PBSM_DIFFUSE;
    mDatablockId = "";
    mTextureFileName = "";
}

//****************************************************************************/
TextureLayer::~TextureLayer(void)
{
}

//****************************************************************************/
void TextureLayer::setDatablockIdAndTexture (const Ogre::IdString& datablockId,
                                             Ogre::PbsTextureTypes textureType,
                                             const Ogre::String& textureFileName)
{
    mDatablockId = datablockId;
    mTextureType = textureType;
    mTextureFileName = textureFileName;
    mTextureTypeDefined = true;

    // Load the texture as image; assume it can be loaded, because it was already loaded as part of the material
    setFirstTextureGeneration();

    // Create the pixelbox of the original texture; this MUST be a separate image
    mOriginalTexture.load(textureFileName, Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
    mPixelboxOriginalTexture = mOriginalTexture.getPixelBox(0, 0);

    // Debug texture
    //Ogre::LogManager::getSingleton().logMessage("Debug texture: " + textureFileName);
    //Ogre::LogManager::getSingleton().logMessage("Depth: " + Ogre::StringConverter::toString(mOriginalTexture.getDepth()));
    //Ogre::LogManager::getSingleton().logMessage("Pixel format: " + Ogre::StringConverter::toString(mOriginalTexture.getFormat()));
    //Ogre::LogManager::getSingleton().logMessage("Alpha: " + Ogre::StringConverter::toString(mOriginalTexture.getHasAlpha()));
    //Ogre::LogManager::getSingleton().logMessage("Height: " + Ogre::StringConverter::toString(mOriginalTexture.getHeight()));
    //Ogre::LogManager::getSingleton().logMessage("Number of faces: " + Ogre::StringConverter::toString(mOriginalTexture.getNumFaces()));
    //Ogre::LogManager::getSingleton().logMessage("Number of mipmaps: " + Ogre::StringConverter::toString(mOriginalTexture.getNumMipmaps()));
    //Ogre::LogManager::getSingleton().logMessage("Width: " + Ogre::StringConverter::toString(mOriginalTexture.getWidth()));
}

//****************************************************************************/
void TextureLayer::blitTexture (void)
{
    /* Always get the actual pointers, because they may change. That is the reason why the datablock pointer cannot be cached.
     * The same seems to apply to the texture pointer.
     */
    Ogre::HlmsDatablock* datablock;
    Ogre::HlmsPbsDatablock* datablockPbs;
    Ogre::TexturePtr texture;
    Ogre::HlmsManager* hlmsManager = Ogre::Root::getSingletonPtr()->getHlmsManager();
    Ogre::HlmsPbs* hlmsPbs = static_cast<Ogre::HlmsPbs*>(hlmsManager->getHlms(Ogre::HLMS_PBS));
    datablock = hlmsPbs->getDatablock(mDatablockId);
    if (!datablock)
        return;

    datablockPbs = static_cast<Ogre::HlmsPbsDatablock*>(datablock);
    try
    {
        // Get texture on GPU
        if (!datablockPbs->getTexture(mTextureType).isNull())
        {
            texture = datablockPbs->getTexture(mTextureType); // TextureType MUST exist, otherwise the application crashes
            mNumMipMaps = texture->getNumMipmaps();
        }
    }
    catch (Ogre::Exception e){}

    if (texture.isNull())
        return;

    Ogre::uint8 maxMipMaps = mNumMipMaps + 1; // Increase with one, because there is always one image to blit
    maxMipMaps = maxMipMaps > PAINT_MAX_MIP_MAPS ? PAINT_MAX_MIP_MAPS : maxMipMaps; // Just paint a few mipmaps (not all)
    Ogre::Image textureOnWhichIsPaintedScaled = mTextureOnWhichIsPainted; // Temporary image must be used, otherwise painting doesn't work
    size_t w = mTextureOnWhichIsPaintedWidth;
    size_t h = mTextureOnWhichIsPaintedHeight;
    Ogre::v1::HardwarePixelBuffer* buffer;
    for (Ogre::uint8 i = 0; i < maxMipMaps; ++i)
    {
        buffer = texture->getBuffer(0, i).getPointer();
        buffer->blitFromMemory(textureOnWhichIsPaintedScaled.getPixelBox(0, 0), Ogre::Box(0, 0, 0, w, h, 1));
        w*=0.5f; // Mipmaps always are half of the previous one
        h*=0.5f;
        if (w < 1.0f || h < 1.0f)
            break; // Stop when the mipmaps are too small

        textureOnWhichIsPaintedScaled.resize(w, h);

    }
    textureOnWhichIsPaintedScaled.freeMemory();
}
Пример #7
0
///  _Tool_ tex ..........................
//  (remove alpha channel for ter tex prv img)
void App::ToolTexAlpha()
{
	Ogre::Image im;
	im.load("jungle_5d.png", "General");

	PixelBox pb = im.getPixelBox();
	int w = pb.getWidth(), h = pb.getHeight();
	for(int j=0; j < h; ++j)
	for(int i=0; i < w; ++i)
	{
		ColourValue c = pb.getColourAt(i,j,0);
		c.a = 1.f;
		pb.setColourAt(c,i,j,0);
	}
	im.save(PATHMANAGER::Data()+"/prv.png");
}
Пример #8
0
//-----------------------------------------------------------------------------------------
void CTerrainGroupEditor::setBrushName(const std::string& brush)
{
    mBrushName = brush;
    if(!mDecalTexture.isNull())
    {
        Ogre::Image img;
        img.load(brush,"Brushes");
        
        unsigned char *dataptr = OGRE_ALLOC_T(unsigned char, img.getWidth() * img.getHeight() * 3, Ogre::MEMCATEGORY_GEOMETRY);
        Ogre::PixelBox resultbox(img.getWidth(),img.getHeight(),1,Ogre::PF_B8G8R8,dataptr);
        Ogre::PixelUtil::bulkPixelConversion(img.getPixelBox(), resultbox);

        resultbox.setConsecutive();
        int pos = 0;
        Ogre::ColourValue colval;
        for(unsigned int x = 0;x < img.getHeight() * img.getWidth();x++)
        {
                dataptr[pos] = 0;
                dataptr[pos + 1] = 0;
                dataptr[pos + 2] *= 0.8f;
                pos += 3;
        }

        mDecalTexture->setHeight(img.getHeight());
        mDecalTexture->setWidth(img.getWidth());
        Ogre::HardwarePixelBufferSharedPtr ptr = mDecalTexture->getBuffer();
        ptr->blitFromMemory(resultbox);
        OGRE_FREE(dataptr, Ogre::MEMCATEGORY_GEOMETRY);

        img.resize(mBrushSize, mBrushSize);
        img.resize(BRUSH_DATA_SIZE, BRUSH_DATA_SIZE);
        pos = 0;
        Ogre::ColourValue cval;
        for(unsigned int y = 0;y < BRUSH_DATA_SIZE ;y++)
        {
            pos = ((BRUSH_DATA_SIZE - 1) - y) * BRUSH_DATA_SIZE;
            for(unsigned int x = 0;x < BRUSH_DATA_SIZE ;x++)
            {
                cval = img.getColourAt(x,y,0);
                mBrushData[pos] = cval.r;
                pos++;
            }
        }
    }
Пример #9
0
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();
        }
    }
}
Пример #10
0
//----------------------------------------------------------------------------------------
QImage ImageConverter::fromOgreImage(const Ogre::Image& image)
{
    if (!Ogre::PixelUtil::isAccessible(image.getFormat()))
        return _imageFromRenderTarget(image);

    size_t size = Ogre::PixelUtil::getMemorySize(mWidth, mHeight, 1, Ogre::PF_A8R8G8B8);
    unsigned char *dataptr = OGRE_ALLOC_T(unsigned char, size, Ogre::MEMCATEGORY_GENERAL);

    Ogre::PixelBox pixbox(mWidth, mHeight, 1, Ogre::PF_A8R8G8B8, dataptr);
    Ogre::Image::scale(image.getPixelBox(), pixbox);
    pixbox.setConsecutive();

    QImage shallowImg(dataptr, pixbox.getWidth(), pixbox.getHeight(), QImage::Format_ARGB32);

    // perform deep copy otherwise data lost upon freeing dataptr
    QImage deepImg = shallowImg.copy();
    OGRE_FREE(dataptr, Ogre::MEMCATEGORY_GENERAL);

    return deepImg;
}
Пример #11
0
void Simple::addLightingPass(Ogre::Technique* technique, std::set<std::string>& managedTextures) const
{
	Ogre::Pass* lightingPass = technique->createPass();

	lightingPass->setSceneBlending(Ogre::SBT_MODULATE);
	lightingPass->setLightingEnabled(false);

	Ogre::TextureUnitState * textureUnitStateSplat = lightingPass->createTextureUnitState();

	//we need an unique name for our alpha texture
	std::stringstream lightingTextureNameSS;
	lightingTextureNameSS << technique->getParent()->getName() << "_lighting";
	const Ogre::String lightingTextureName(lightingTextureNameSS.str());

	Ogre::TexturePtr texture = static_cast<Ogre::TexturePtr>(Ogre::Root::getSingletonPtr()->getTextureManager()->getByName(lightingTextureName));
	if (texture.isNull()) {
		texture = Ogre::Root::getSingletonPtr()->getTextureManager()->createManual(lightingTextureName, "General", Ogre::TEX_TYPE_2D, mPage.getBlendMapSize(), mPage.getBlendMapSize(), 1, Ogre::PF_L8, Ogre::TU_DYNAMIC_WRITE_ONLY);
		managedTextures.insert(texture->getName());
	}

	Ogre::Image ogreImage;
	ogreImage.loadDynamicImage(const_cast<unsigned char*>(mLightingImage->getData()), mLightingImage->getResolution(), mLightingImage->getResolution(), 1, Ogre::PF_L8);

	texture->loadImage(ogreImage);

	//blit the whole image to the hardware buffer
	Ogre::PixelBox sourceBox(ogreImage.getPixelBox());
	//blit for each mipmap
	for (unsigned int i = 0; i <= texture->getNumMipmaps(); ++i) {
		Ogre::HardwarePixelBufferSharedPtr hardwareBuffer(texture->getBuffer(0, i));
		hardwareBuffer->blitFromMemory(sourceBox);
	}

	textureUnitStateSplat->setTextureName(texture->getName());

	textureUnitStateSplat->setTextureCoordSet(0);
	textureUnitStateSplat->setTextureAddressingMode(Ogre::TextureUnitState::TAM_CLAMP);
	textureUnitStateSplat->setTextureFiltering(Ogre::TFO_ANISOTROPIC);

}
Пример #12
0
	Vector4* SnowTerrain::getTerrainNormalData()
	{
		PixelBox* terrainNormals;

		// load from normals file
		if(mSnowConfig->terrainSettings.normalsDataFile.length() > 0)
		{
			// get terrain normal data using image
			Ogre::Image img;
			img.load(mSnowConfig->terrainSettings.normalsDataFile,  "General");
			//img.flipAroundY();
			//img.flipAroundX();

			size_t size = img.getWidth();
			assert(img.getWidth() == img.getHeight());

			if (img.getWidth() != mTerrainSize || img.getHeight() != mTerrainSize)
				img.resize(mTerrainSize, mTerrainSize);

			terrainNormals = &img.getPixelBox();

			Vector4* floats = convertNormalsToFloats(terrainNormals, true);
			//OGRE_FREE(terrainNormals->data, Ogre::MEMCATEGORY_GENERAL);
			
			// need to swap z and y vector due to different vertical axis in normal map and world space!
			for(size_t i = 0;i<mTerrainSize*mTerrainSize;i++)
			{
				Vector4 v = floats[i];
				floats[i].z = v.y;
				floats[i].y = v.z;

			}
			return floats;
		}
		else
		{
			// need to wait until terrain is loaded
			while (getTerrain()->isDerivedDataUpdateInProgress())
			{
				// we need to wait for this to finish
				OGRE_THREAD_SLEEP(50);
				Root::getSingleton().getWorkQueue()->processResponses();
			}

			// Get terrain normal data using official method
			//terrainNormals = getTerrain()->calculateNormals(Ogre::Rect(0,0,mTerrainSize,mTerrainSize),Rect(0,0,mTerrainSize,mTerrainSize));
			Ogre::Image img;
			getTerrain()->getTerrainNormalMap()->convertToImage(img);
			//img.flipAroundY();
			img.flipAroundX();
			//img.save("test_normals.bmp");
			terrainNormals = &img.getPixelBox();

			Vector4* floats = convertNormalsToFloats(terrainNormals, true);
			//OGRE_FREE(terrainNormals->data, Ogre::MEMCATEGORY_GENERAL);
			return floats;
		}


		
	}
Пример #13
0
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;
}
Пример #14
0
// void TerrainPageSurfaceCompiler::addTextureUnitsToPass(Ogre::Pass* pass, const Ogre::String& splatTextureName) {
//
// 	if (getMaxTextureUnits() - pass->getNumTextureUnitStates() < 2 || pass->getParent()->getNumPasses() > 1)  {
// 		addPassToTechnique(pass->getParent(), splatTextureName);
// // 		S_LOG_WARNING("Trying to add texture units to pass with too few available texture unit states.");
// 		return;
// 	}
//
// 	S_LOG_VERBOSE("Adding new texture unit (detailtexture: " << mTextureName << " alphatexture: " << splatTextureName << ") to pass nr " << pass->getIndex() << " in technique for material " << pass->getParent()->getParent()->getName());
//
// /*	pass->setSelfIllumination(Ogre::ColourValue(1,1,1));
// 	pass->setAmbient(Ogre::ColourValue(1,1,1));
// 	pass->setDiffuse(Ogre::ColourValue(1,1,1));
// 	pass->setLightingEnabled(true);*/
// 	Ogre::TextureUnitState * textureUnitStateSplat = pass->createTextureUnitState();
//     textureUnitStateSplat->setTextureName(splatTextureName);
//
//     textureUnitStateSplat->setTextureCoordSet(0);
// 	textureUnitStateSplat->setTextureFiltering(Ogre::TFO_ANISOTROPIC);
// 	textureUnitStateSplat->setAlphaOperation(Ogre::LBX_SOURCE1, Ogre::LBS_TEXTURE, Ogre::LBS_TEXTURE);
// 	textureUnitStateSplat->setColourOperationEx(Ogre::LBX_SOURCE1, Ogre::LBS_CURRENT, Ogre::LBS_CURRENT);
//     textureUnitStateSplat->setTextureAddressingMode(Ogre::TextureUnitState::TAM_CLAMP);
// // 	textureUnitStateSplat->setColourOperationEx(Ogre::LBX_BLEND_DIFFUSE_ALPHA, Ogre::LBS_CURRENT, Ogre::LBS_TEXTURE);
// //	textureUnitStateSplat->setColourOperationEx(Ogre::LBX_BLEND_TEXTURE_ALPHA, Ogre::LBS_CURRENT, Ogre::LBS_TEXTURE);
//
// 	Ogre::TextureUnitState * textureUnitState = pass->createTextureUnitState();
//     textureUnitState->setTextureName(mTextureName);
//     textureUnitState->setTextureAddressingMode(Ogre::TextureUnitState::TAM_WRAP);
// /*	textureUnitState->setTextureCoordSet(0);*/
// 	textureUnitState->setTextureScale(0.025, 0.025);
// 	textureUnitState->setColourOperationEx(Ogre::LBX_BLEND_CURRENT_ALPHA, Ogre::LBS_TEXTURE, Ogre::LBS_CURRENT);
//
// /*	Ogre::TextureUnitState * alphaTextureState= pass->createTextureUnitState();
//     alphaTextureState->setTextureName(mTextureName);
// //     alphaTextureState->setTextureName(splatTextureName);
//     alphaTextureState->setTextureCoordSet(0);
// 	alphaTextureState->setTextureFiltering(Ogre::TFO_ANISOTROPIC);
//     alphaTextureState->setTextureAddressingMode(Ogre::TextureUnitState::TAM_CLAMP);
//  	alphaTextureState->setColourOperationEx(Ogre::LBX_BLEND_DIFFUSE_ALPHA, Ogre::LBS_CURRENT, Ogre::LBS_TEXTURE);
//
//
//
// // 	detailTextureState->setAlphaOperation(Ogre::LBX_SOURCE1, Ogre::LBS_TEXTURE, Ogre::LBS_TEXTURE);
// // 	detailTextureState->setColourOperationEx(Ogre::LBX_SOURCE1, Ogre::LBS_CURRENT, Ogre::LBS_CURRENT);
//
// 	Ogre::TextureUnitState * detailTextureState  = pass->createTextureUnitState();
//     detailTextureState ->setTextureName(splatTextureName);
// //     detailTextureState ->setTextureName(mTextureName);
//     detailTextureState ->setTextureAddressingMode(Ogre::TextureUnitState::TAM_WRAP);
// 	detailTextureState ->setTextureCoordSet(0);
// 	detailTextureState ->setTextureScale(0.01, 0.01);
// 	//detailTextureState ->setColourOperationEx(Ogre::LBX_BLEND_CURRENT_ALPHA, Ogre::LBS_TEXTURE, Ogre::LBS_CURRENT);*/
//
// }
//
Ogre::Pass* Simple::addPassToTechnique(const TerrainPageGeometry& geometry, Ogre::Technique* technique, const Layer& layer, std::set<std::string>& managedTextures) const
{
	//check if we instead can reuse the existing pass
	// 	if (technique->getNumPasses() != 0) {
	// 		Ogre::Pass* pass = technique->getPass(technique->getNumPasses() - 1);
	// 		if (4 - pass->getNumTextureUnitStates() >= 2) {
	// 			//there's more than two texture units available, use those instead of creating a new pass
	// 			S_LOG_VERBOSE("Reusing existing pass. ("<< pass->getNumTextureUnitStates() << " of "<< mNumberOfTextureUnitsOnCard << " texture unit used)");
	// 			addTextureUnitsToPass(pass, splatTextureName);
	// 			return pass;
	// 		}
	//
	// 	}

	const OgreImage& ogreImage = *layer.blendMap;
	Ogre::Image image;

	image.loadDynamicImage(const_cast<unsigned char*>(ogreImage.getData()), ogreImage.getResolution(), ogreImage.getResolution(), 1, Ogre::PF_A8);

	std::stringstream splatTextureNameSS;
	splatTextureNameSS << "terrain_" << mPage.getWFPosition().x() << "_" << mPage.getWFPosition().y() << "_" << technique->getNumPasses();
	const Ogre::String splatTextureName(splatTextureNameSS.str());
	Ogre::TexturePtr blendMapTexture;
	if (Ogre::Root::getSingletonPtr()->getTextureManager()->resourceExists(splatTextureName)) {
		blendMapTexture = static_cast<Ogre::TexturePtr>(Ogre::Root::getSingletonPtr()->getTextureManager()->getByName(splatTextureName));
		blendMapTexture->loadImage(image);

		Ogre::HardwarePixelBufferSharedPtr hardwareBuffer(blendMapTexture->getBuffer());
		//blit the whole image to the hardware buffer
		Ogre::PixelBox sourceBox(image.getPixelBox());
		hardwareBuffer->blitFromMemory(sourceBox);
	} else {
		blendMapTexture = Ogre::Root::getSingletonPtr()->getTextureManager()->loadImage(splatTextureName, "General", image, Ogre::TEX_TYPE_2D, 0);
		managedTextures.insert(blendMapTexture->getName());
	}

	//we need to create the image, update it and then destroy it again (to keep the memory usage down)
	//	if (layer->getBlendMapTextureName() == "") {
	//		//no texture yet; let's create one
	//		layer->createBlendMapImage();
	//		layer->updateBlendMapImage(geometry);
	//		layer->createTexture();
	//	} else {
	//		//a texture exists, so we just need to update the image
	//		layer->updateBlendMapImage(geometry); //calling this will also update the texture since the method will blit the image onto it
	//	}

	Ogre::Pass* pass = technique->createPass();

	pass->setSceneBlending(Ogre::SBT_TRANSPARENT_ALPHA);
	pass->setAmbient(1, 1, 1);
	pass->setDiffuse(1, 1, 1, 1);
	pass->setLightingEnabled(false);

	Ogre::TextureUnitState * textureUnitState = pass->createTextureUnitState();
	textureUnitState->setTextureName(layer.surfaceLayer.getDiffuseTextureName());
	textureUnitState->setTextureAddressingMode(Ogre::TextureUnitState::TAM_WRAP);
	textureUnitState->setTextureCoordSet(0);
	textureUnitState->setTextureScale(1.0f / layer.surfaceLayer.getScale(), 1.0f / layer.surfaceLayer.getScale());

	Ogre::TextureUnitState * textureUnitStateSplat = pass->createTextureUnitState();
	textureUnitStateSplat->setTextureName(blendMapTexture->getName());

	textureUnitStateSplat->setTextureCoordSet(0);
	textureUnitStateSplat->setTextureAddressingMode(Ogre::TextureUnitState::TAM_CLAMP);
	textureUnitStateSplat->setTextureFiltering(Ogre::TFO_ANISOTROPIC);
	//	textureUnitStateSplat->setAlphaOperation(Ogre::LBX_SOURCE1, Ogre::LBS_TEXTURE, Ogre::LBS_TEXTURE);
	textureUnitStateSplat->setAlphaOperation(Ogre::LBX_BLEND_DIFFUSE_COLOUR, Ogre::LBS_TEXTURE, Ogre::LBS_CURRENT);
	textureUnitStateSplat->setColourOperationEx(Ogre::LBX_SOURCE1, Ogre::LBS_CURRENT, Ogre::LBS_CURRENT);
	return pass;

}
Пример #15
0
	//------------------------------------------------------
	void TextureAtlas::build() {
		if (!mIsDirty)
			return;

		bool fitted;

		size_t area = 0;

		// build the fonts (if this didn't happen already)
		// so we'll be sure the glyphs are there to be atlassed
		FontSet::iterator fit = mMyFonts.begin();

		while (fit != mMyFonts.end()) {
			FontDrawSource* fdsp = *fit++;

			if (!fdsp->isBuilt())
				fdsp->build();
		}

		// First, we sort by size of the DrawSource
		mMyDrawSources.sort(DrawSourceLess());

		// now try to allocate all the draw sources. If we fail, grow and try again
		do {
			fitted = true;
			area = 0;

			// try to fit
			DrawSourceList::iterator it = mMyDrawSources.begin();

			while (it != mMyDrawSources.end()) {
				
				const DrawSourcePtr& ds = *it++;

				const PixelSize& ps = ds->getPixelSize();
				area += ps.getPixelArea();
				
				LOG_VERBOSE("TextureAtlas: (%s) Trying to place %d x %d (%d -> %d)", mAtlasName.c_str(), ps.width, ps.height, ps.getPixelArea(), area);

				// try to allocate
				FreeSpaceInfo* fsi = mAtlasAllocation->allocate(ps.width, ps.height);

				if (fsi) {
					ds->setPlacementPtr(fsi);
				} else {
					fitted = false;
					break;
				}
			}
			// fitted?

			if (!fitted) // nope - Enlarge!
				enlarge(area);
		} while (!fitted);
		
		LOG_INFO("TextureAtlas: (%s) Creating atlas with dimensions %d x %d", mAtlasName.c_str(), mAtlasSize.width, mAtlasSize.height);

		if (mTexture.isNull())
			prepareResources();
		// TODO: Reallocate the texture here if needed!
		
		Ogre::HardwarePixelBufferSharedPtr pixelBuffer = mTexture->getBuffer();
		pixelBuffer->lock(Ogre::HardwareBuffer::HBL_DISCARD);
		
		const Ogre::PixelBox& targetBox = pixelBuffer->getCurrentLock();
		
		size_t pixelsize = Ogre::PixelUtil::getNumElemBytes(targetBox.format);
		size_t rowsize = targetBox.rowPitch * pixelsize;

		Ogre::uint8* dstData = static_cast<Ogre::uint8*>(targetBox.data);

		// We'll iterate over all draw sources, painting the pixels onto the allocated space
		DrawSourceList::iterator it = mMyDrawSources.begin();

		while (it != mMyDrawSources.end()) {
			const DrawSourcePtr& ds = *it++;

			// render all pixels into the right place
			FreeSpaceInfo* fsi = reinterpret_cast<FreeSpaceInfo*>(ds->getPlacementPtr());
			
			assert(fsi);

			// render into the specified place
			unsigned char* conversionBuf = NULL;
			

			const PixelSize& dps = ds->getPixelSize();
			Ogre::Image* img = ds->getImage();
			Ogre::PixelBox srcPixels = img->getPixelBox();
			
			// convert if the source data don't match
			if(img->getFormat() != Ogre::PF_BYTE_BGRA) {
					conversionBuf = new unsigned char[img->getWidth() * img->getHeight() * pixelsize];
					Ogre::PixelBox convPixels(Ogre::Box(0, 0, dps.width, dps.height), Ogre::PF_BYTE_BGRA, conversionBuf);
					Ogre::PixelUtil::bulkPixelConversion(srcPixels, convPixels);
					srcPixels = convPixels;
			}

			size_t srcrowsize = srcPixels.rowPitch * pixelsize;

			Ogre::uint8* srcData = static_cast<Ogre::uint8*>(srcPixels.data);
			
			// TODO: we're always handling 32bit data, so we could as well transfer 4 bytes each iteration instead of one (speedup)
			for(size_t row = 0; row < dps.height; row++) {
					for(size_t col = 0; col < srcrowsize; col++) {
							dstData[((row + fsi->y) * rowsize) + (fsi->x * pixelsize) + col] =
								srcData[(row * srcrowsize) + col];
					}
			}

			delete[] conversionBuf;
			
			// Convert the full draw source pixel coordinates to the atlas contained ones (initializes the texturing coordinates transform)
			ds->atlas(mMaterial, fsi->x, fsi->y, mAtlasSize.width, mAtlasSize.height);
		}

		 // for debug, write the texture to a file
		/*unsigned char *readrefdata = static_cast<unsigned char*>(targetBox.data);		
				     
		Ogre::Image img;
		img = img.loadDynamicImage (readrefdata, mTexture->getWidth(),
		    mTexture->getHeight(), mTexture->getFormat());	
		img.save(mAtlasName + ".png");*/

		// and close the pixel buffer of the atlas at the end
		pixelBuffer->unlock();
		mIsDirty = false;
	}
Пример #16
0
    void GlobalMap::exploreCell(int cellX, int cellY)
    {
        float originX = static_cast<float>((cellX - mMinX) * mCellSize);
        // NB y + 1, because we want the top left corner, not bottom left where the origin of the cell is
        float originY = static_cast<float>(mHeight - (cellY + 1 - mMinY) * mCellSize);

        if (cellX > mMaxX || cellX < mMinX || cellY > mMaxY || cellY < mMinY)
            return;

        Ogre::TexturePtr localMapTexture = Ogre::TextureManager::getSingleton().getByName("Cell_"
            + boost::lexical_cast<std::string>(cellX) + "_" + boost::lexical_cast<std::string>(cellY));

        if (!localMapTexture.isNull())
        {
            int mapWidth = localMapTexture->getWidth();
            int mapHeight = localMapTexture->getHeight();
            mOverlayTexture->load();
            mOverlayTexture->getBuffer()->blit(localMapTexture->getBuffer(), Ogre::Image::Box(0,0,mapWidth,mapHeight),
                         Ogre::Image::Box(static_cast<Ogre::uint32>(originX), static_cast<Ogre::uint32>(originY),
                         static_cast<Ogre::uint32>(originX + mCellSize), static_cast<Ogre::uint32>(originY + mCellSize)));

            Ogre::Image backup;
            std::vector<Ogre::uchar> data;
            data.resize(mCellSize*mCellSize*4, 0);
            backup.loadDynamicImage(&data[0], mCellSize, mCellSize, Ogre::PF_A8B8G8R8);

            localMapTexture->getBuffer()->blitToMemory(Ogre::Image::Box(0,0,mapWidth,mapHeight), backup.getPixelBox());

            for (int x=0; x<mCellSize; ++x)
                for (int y=0; y<mCellSize; ++y)
                {
                    assert (originX+x < mOverlayImage.getWidth());
                    assert (originY+y < mOverlayImage.getHeight());
                    assert (x < int(backup.getWidth()));
                    assert (y < int(backup.getHeight()));
                    mOverlayImage.setColourAt(backup.getColourAt(x, y, 0), static_cast<size_t>(originX + x), static_cast<size_t>(originY + y), 0);
                }
        }
    }
Пример #17
0
void
Terrain::_createAtlasPixmap(size_t pixmapId)
{
    const TerrainData::Pixmap& pixmap = mData->mPixmaps[pixmapId];
    size_t textureId = pixmap.textureId;
    assert(textureId < mData->mTextures.size());
    const Ogre::String& textureName = mData->mTextures[textureId];

    // If the atlas texture already exist, use it.

    AtlasArray::const_iterator it;
    for (it = mAtlases.begin(); it != mAtlases.end(); ++it)
    {
        if (it->texture->getName() == textureName)
            break;
    }
    if (it != mAtlases.end())
    {
        // Fill up atlas pixmap info
        size_t atlasId = it - mAtlases.begin() + 1;
        mAtlasPixmaps[pixmapId].atlasId = atlasId;
        mAtlasPixmaps[pixmapId].left = pixmap.left;
        mAtlasPixmaps[pixmapId].top = pixmap.top;
        mAtlasPixmaps[pixmapId].right = pixmap.right;
        mAtlasPixmaps[pixmapId].bottom = pixmap.bottom;
        return;
    }

    // If texture already loaded and is composited, use it without any modify.
    Ogre::TexturePtr texture = Ogre::TextureManager::getSingleton().getByName(textureName);
    if (!texture.isNull() &&
        (texture->getWidth() > mAtlasPixmapSize || texture->getHeight() > mAtlasPixmapSize))
    {
        mAtlases.push_back(Atlas());
        Atlas& atlas = mAtlases.back();

        atlas.texture = texture;

        // Fill up atlas pixmap info
        size_t atlasId = mAtlases.size();
        mAtlasPixmaps[pixmapId].atlasId = atlasId;
        mAtlasPixmaps[pixmapId].left = pixmap.left;
        mAtlasPixmaps[pixmapId].top = pixmap.top;
        mAtlasPixmaps[pixmapId].right = pixmap.right;
        mAtlasPixmaps[pixmapId].bottom = pixmap.bottom;
        return;
    }

    // Load the image
    Ogre::Image image;
    image.load(textureName, BRUSH_RESOURCE_GROUP_NAME);

    // If the image is composited, use it without any modify.
    if (image.getWidth() > mAtlasPixmapSize || image.getHeight() > mAtlasPixmapSize)
    {
        mAtlases.push_back(Atlas());
        Atlas& atlas = mAtlases.back();

        // re-use the loaded image avoid load it again
        atlas.texture =
            Ogre::TextureManager::getSingleton()
            .loadImage(textureName, BRUSH_RESOURCE_GROUP_NAME, image);

        // Fill up atlas pixmap info
        size_t atlasId = mAtlases.size();
        mAtlasPixmaps[pixmapId].atlasId = atlasId;
        mAtlasPixmaps[pixmapId].left = pixmap.left;
        mAtlasPixmaps[pixmapId].top = pixmap.top;
        mAtlasPixmaps[pixmapId].right = pixmap.right;
        mAtlasPixmaps[pixmapId].bottom = pixmap.bottom;
        return;
    }

    // Composite into the atlas texture.

    bool isTransparent = image.getHasAlpha();
    AtlasAllocInfo& allocInfo = isTransparent ? mTransparentAtlasAllocInfo : mSolidAtlasAllocInfo;
    if (allocInfo.blockId >= mMaxAtlasBlockId)
    {
        // Use special name to avoid confuse with other reference with this texture
       Ogre::String atlasName = "<Terrain/Atlas>:" + Ogre::StringConverter::toString(mAtlases.size());

        mAtlases.push_back(Atlas());
        Atlas& atlas = mAtlases.back();

        Ogre::PixelFormat pixelFormat = isTransparent ? Ogre::PF_A8R8G8B8 : Ogre::PF_X8R8G8B8;
        atlas.image.bind(new Ogre::Image);
        atlas.image->loadDynamicImage(0, mAtlasTextureSize, mAtlasTextureSize, 1, pixelFormat, true, 1, mAtlasNumMipMaps);
        memset(atlas.image->getData(), 0, atlas.image->getSize());

        atlas.texture =
            Ogre::TextureManager::getSingleton().createManual(atlasName,
                BRUSH_RESOURCE_GROUP_NAME, Ogre::TEX_TYPE_2D,
                atlas.image->getWidth(), atlas.image->getHeight(),
                mAtlasNumMipMaps, atlas.image->getFormat(),
                Ogre::TU_DYNAMIC_WRITE_ONLY_DISCARDABLE,
                this);

        allocInfo.atlasId = mAtlases.size();
        allocInfo.blockId = 0;
    }

    // Copy origin pixmap to atlas image
    Atlas& atlas = mAtlases[allocInfo.atlasId - 1];
    int blockX = allocInfo.blockId % mAtlasBlockSize;
    int blockY = allocInfo.blockId / mAtlasBlockSize;
    Ogre::PixelBox dst = atlas.image->getPixelBox().getSubVolume(Ogre::Box(
        blockX * mAtlasPixmapSize,
        blockY * mAtlasPixmapSize,
        blockX * mAtlasPixmapSize + mAtlasPixmapSize,
        blockY * mAtlasPixmapSize + mAtlasPixmapSize));
    Ogre::PixelBox src = image.getPixelBox().getSubVolume(Ogre::Box(
        fast_ifloor(pixmap.left * image.getWidth() + 0.5f),
        fast_ifloor(pixmap.top * image.getHeight() + 0.5f),
        fast_ifloor(pixmap.right * image.getWidth() + 0.5f),
        fast_ifloor(pixmap.bottom * image.getHeight() + 0.5f)));
    if (src.getWidth() == mAtlasPixmapSize && src.getHeight() == mAtlasPixmapSize)
        Ogre::PixelUtil::bulkPixelConversion(src, dst);
    else
        Ogre::Image::scale(src, dst);

    // Generate mipmaps manual
    for (size_t mipmap = 1; mipmap <= mAtlasNumMipMaps; ++mipmap)
    {
        src = dst;
        size_t pixmapSize = mAtlasPixmapSize >> mipmap;
        dst = atlas.image->getPixelBox(0, mipmap).getSubVolume(Ogre::Box(
            blockX * pixmapSize,
            blockY * pixmapSize,
            blockX * pixmapSize + pixmapSize,
            blockY * pixmapSize + pixmapSize));
        Ogre::Image::scale(src, dst);
    }

    // Notify that the atlas texture need to reload
    if (atlas.texture->isLoaded())
        atlas.texture->unload();

    ++allocInfo.blockId;

    // Fill up atlas pixmap info

    mAtlasPixmaps[pixmapId].atlasId = allocInfo.atlasId;
    mAtlasPixmaps[pixmapId].left = blockX * mAtlasBlockTexCoordInc + 0.5f / mAtlasTextureSize;
    mAtlasPixmaps[pixmapId].top = blockY * mAtlasBlockTexCoordInc + 0.5f / mAtlasTextureSize;
    mAtlasPixmaps[pixmapId].right = mAtlasPixmaps[pixmapId].left + mAtlasBlockTexCoordInc -  1.0f / mAtlasTextureSize;
    mAtlasPixmaps[pixmapId].bottom = mAtlasPixmaps[pixmapId].top + mAtlasBlockTexCoordInc -  1.0f / mAtlasTextureSize;
}