private IEnumerable <IdleStatus> createRender(int finalWidth, int finalHeight, int aaMode, bool showWatermark, bool transparentBG, Engine.Color backColor, Camera cloneCamera, Vector3 position, Vector3 lookAt, float minNearDistance, float nearPlaneWorld, float nearFarLength, ImageRendererProperties properties, Action <FreeImageBitmap> renderingCompletedCallback)
{
FreeImageBitmap bitmap = null;
OgreSceneManager sceneManager = controller.CurrentScene.getDefaultSubScene().getSimElementManager <OgreSceneManager>();
if (sceneManager != null)
{
bool doGridRender;
int backBufferWidth;
int backBufferHeight;
using (TexturePtr texture = createOgreTexture(finalWidth, finalHeight, aaMode, out doGridRender, out backBufferWidth, out backBufferHeight))
{
if (texture != null)
{
using (HardwarePixelBufferSharedPtr pixelBuffer = texture.Value.getBuffer())
{
RenderTexture renderTexture = pixelBuffer.Value.getRenderTarget();
Camera camera = sceneManager.SceneManager.createCamera("__PictureCamera");
camera.setLodBias(cloneCamera.getLodBias());
camera.setUseRenderingDistance(cloneCamera.getUseRenderingDistance());
camera.setNearClipDistance(cloneCamera.getNearClipDistance());
camera.setFarClipDistance(cloneCamera.getFarClipDistance());
camera.setPolygonMode(cloneCamera.getPolygonMode());
camera.setRenderingDistance(cloneCamera.getRenderingDistance());
camera.setProjectionType(cloneCamera.getProjectionType());
camera.setFOVy(cloneCamera.getFOVy());
camera.setAutoAspectRatio(false);
camera.setAspectRatio((float)finalWidth / finalHeight);
SceneNode node = sceneManager.SceneManager.createSceneNode("__PictureCameraNode");
node.attachObject(camera);
node.setPosition(position);
sceneManager.SceneManager.getRootSceneNode().addChild(node);
camera.lookAt(lookAt);
Viewport viewport = renderTexture.addViewport(camera, 1, 0.0f, 0.0f, 1.0f, 1.0f);
if (properties.UseIncludePoint)
{
Matrix4x4 viewMatrix = camera.getViewMatrix();
Matrix4x4 projectionMatrix = camera.getProjectionMatrix();
float aspect = camera.getAspectRatio();
float fovy = camera.getFOVy() * 0.5f;
float distance = SceneViewWindow.computeOffsetToIncludePoint(viewMatrix, projectionMatrix, properties.IncludePoint, aspect, fovy);
Vector3 direction = (position - lookAt).normalized();
node.setPosition(position - (direction * distance));
camera.lookAt(lookAt);
}
if (transparentBG)
{
backColor.a = 0.0f;
}
ViewportBackground bgViewport = null;
if (background != null)
{
bgViewport = new ViewportBackground("ImageRenderer", 0, background, renderTexture, false);
bgViewport.BackgroundColor = backColor;
bgViewport.Camera.setAutoAspectRatio(false);
bgViewport.Camera.setAspectRatio((float)finalWidth / finalHeight);
}
viewport.setBackgroundColor(backColor);
viewport.setOverlaysEnabled(false);
viewport.setClearEveryFrame(false);
if (properties.CustomizeCameraPosition != null)
{
properties.CustomizeCameraPosition(camera, viewport);
}
float near = CameraPositioner.computeNearClipDistance(camera.getDerivedPosition().length(), minNearDistance, nearPlaneWorld);
camera.setNearClipDistance(near);
camera.setFarClipDistance(near + nearFarLength);
if (doGridRender)
{
IEnumerable <IdleStatus> process = gridRender(finalWidth * aaMode, finalHeight * aaMode, backBufferWidth, backBufferHeight, aaMode, renderTexture, camera, bgViewport != null ? bgViewport.Camera : null, transparentBG, backColor,
(product) =>
{
bitmap = product;
});
foreach (IdleStatus idleStatus in process)
{
yield return(idleStatus);
}
}
else
{
bitmap = simpleRender(backBufferWidth, backBufferHeight, aaMode, transparentBG, backColor, renderTexture);
}
if (showWatermark && LoadLogo != null)
{
using (FreeImageBitmap logo = LoadLogo())
{
float imageFinalHeight = bitmap.Height * 0.0447f;
float scale = imageFinalHeight / logo.Height;
float imageFinalWidth = logo.Width * scale;
if (imageFinalWidth > bitmap.Width)
{
imageFinalWidth = bitmap.Width;
scale = imageFinalWidth / logo.Width;
imageFinalHeight = logo.Height * scale;
}
logo.Rescale((int)imageFinalWidth, (int)imageFinalHeight, FREE_IMAGE_FILTER.FILTER_BILINEAR);
//Have to composite the logo image first.
using (FreeImageBitmap fullImageCorner = bitmap.Copy(0, bitmap.Height - (int)imageFinalHeight, (int)imageFinalWidth, bitmap.Height))
{
fullImageCorner.ConvertColorDepth(FREE_IMAGE_COLOR_DEPTH.FICD_24_BPP);
logo.Composite(false, null, fullImageCorner);
}
bitmap.Paste(logo, 0, bitmap.Height - (int)imageFinalHeight, int.MaxValue);
}
}
renderTexture.destroyViewport(viewport);
if (bgViewport != null)
{
bgViewport.Dispose();
}
sceneManager.SceneManager.getRootSceneNode().removeChild(node);
sceneManager.SceneManager.destroySceneNode(node);
sceneManager.SceneManager.destroyCamera(camera);
TextureManager.getInstance().remove(texture);
}
}
else
{
//An error making the render texture. Log it and return the error image.
Log.Error("Could not render image. Returning placeholder image. Reason: Could not create valid render to texture target.");
bitmap = new FreeImageBitmap(finalWidth, finalHeight);
bitmap.FillBackground(new RGBQUAD()
{
rgbRed = 255
});
}
}
}
renderingCompletedCallback(bitmap);
yield break;
}