private SceneThumbInfo renderSceneThumbnail()
{
SceneThumbInfo sceneThumbInfo = new SceneThumbInfo();
ImageRendererProperties imageProperties = new ImageRendererProperties();
imageProperties.Width = SlideImageManager.SceneThumbWidth;
imageProperties.Height = SlideImageManager.SceneThumbHeight;
imageProperties.AntiAliasingMode = 2;
imageProperties.TransparentBackground = false;
imageProperties.UseActiveViewportLocation = false;
imageProperties.OverrideLayers = true;
imageProperties.ShowBackground = false;
imageProperties.ShowWatermark = false;
imageProperties.ShowUIUpdates = false;
slide.StartupAction.configureThumbnailProperties(imageProperties);
imageProperties.CustomizeCameraPosition = (camera, viewport) =>
{
SceneNode node = camera.getParentSceneNode();
Vector3 position = node.getDerivedPosition();
Vector3 lookAt = imageProperties.CameraLookAt;
Vector3 topLeft = SceneViewWindow.Unproject(0, 0, camera.getViewMatrix(), camera.getProjectionMatrix());
Vector3 bottomRight = SceneViewWindow.Unproject(1, 1, camera.getViewMatrix(), camera.getProjectionMatrix());
Vector3 include = imageProperties.IncludePoint;
//Move camera back more
float distance = -60;
Vector3 direction = (position - lookAt).normalized();
node.setPosition(position - (direction * distance));
camera.lookAt(lookAt);
Vector2 includeLoc = SceneViewWindow.Project(include, camera.getViewMatrix(), camera.getProjectionMatrix(), imageProperties.Width, imageProperties.Height);
sceneThumbInfo.IncludeX = (int)includeLoc.x;
sceneThumbInfo.IncludeY = (int)includeLoc.y;
sceneThumbInfo.Color = viewport.getBackgroundColor();
};
sceneThumbInfo.SceneThumb = imageRenderer.renderImage(imageProperties);
return(sceneThumbInfo);
}