Ogre中显示Kinect的彩色图像

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首先创建材质文件以显示所需的图片

//-------------------------------------------------------------------------------------void SetupImageMaterial(){// Create the textureTexturePtr texture = TextureManager::getSingleton().createManual("MyImageTexture", // nameResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,TEX_TYPE_2D,      // typem_Width, m_Height,         // width & height0,                // number of mipmapsPF_B8G8R8A8,     // pixel format PF_BYTE_BGRATU_DYNAMIC_WRITE_ONLY_DISCARDABLE);// TU_WRITE_ONLY// Create a material using the textureMaterialPtr material = MaterialManager::getSingleton().create("ImageTextureMaterial", // nameResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);material->getTechnique(0)->getPass(0)->createTextureUnitState("MyImageTexture");}

作为前期测试，我们可以设定某一个颜色以在Ogre中生成动态纹理，方式如下：

void UpdateImageTexture(){TexturePtr texture = TextureManager::getSingleton().getByName("MyImageTexture");// Get the pixel bufferOgre::HardwarePixelBufferSharedPtr pixelBuffer = texture->getBuffer(); // Lock the pixel buffer and get a pixel boxpixelBuffer->lock(0, 480*640*4, Ogre::HardwareBuffer::HBL_DISCARD);const Ogre::PixelBox &pixelBox = pixelBuffer->getCurrentLock();  unsigned char* pDest = static_cast<unsigned char*>(pixelBox.data);  for(size_t j = 0; j<640; j++){for(size_t i = 0; i<480; i++) // width{pDest[ ((j*480)+i)*4 + 0 ] = 255;pDest[ ((j*480)+i)*4 + 1 ] = 255;pDest[ ((j*480)+i)*4 + 2 ] = 0;pDest[ ((j*480)+i)*4 + 3 ] = 255;}}pixelBuffer->unlock(); }

最后，换成利用Kinect更新数据，如下所示

void UpdateImageTexture(){TexturePtr texture = TextureManager::getSingleton().getByName("MyImageTexture");Ogre::HardwarePixelBufferSharedPtr buffer=texture->getBuffer(0,0);  buffer->lock(Ogre::HardwareBuffer::HBL_NORMAL);//HBL_DISCARD);  const Ogre::PixelBox &pb = buffer->getCurrentLock();  Ogre::uint32 *data = static_cast<Ogre::uint32*>(pb.data);  size_t height = pb.getHeight();  size_t width = pb.getWidth();   size_t pitch = pb.rowPitch; // Skip between rows of image  xn::ImageMetaData  imageMD;m_ImageGenerator.GetMetaData(imageMD);XnUInt16 g_nXRes = imageMD.XRes();XnUInt16 g_nYRes = imageMD.YRes();const XnUInt8* pImage = imageMD.Data(); for(size_t j = 0; j<height; j++){for(size_t i = 0; i< width; i++){if(imageMD.PixelFormat()==XN_PIXEL_FORMAT_RGB24){unsigned char R=pImage[0];  unsigned char G=pImage[1];  unsigned char B=pImage[2];  pImage+=3;Ogre::uint32 pixel=(R<<16)+(G<<8)+(B);  data[pitch*j + width-1-i] =pixel ;}else{unsigned char R=12;  unsigned char G=120;  unsigned char B=12;  Ogre::uint32 pixel=(R<<16)+(G<<8)+(B);  data[pitch*j + width-1-i] =pixel ;}}}buffer->unlock(); }