public static void UpdateParameters(RenderContext context, CameraComponent camera)
{
if (camera == null) throw new ArgumentNullException("camera");
// Setup viewport size
var currentViewport = context.GraphicsDevice.Viewport;
var aspectRatio = currentViewport.AspectRatio;
// Update the aspect ratio
if (camera.UseCustomAspectRatio)
{
aspectRatio = camera.AspectRatio;
}
// If the aspect ratio is calculated automatically from the current viewport, update matrices here
camera.Update(aspectRatio);
// Store the current view/projection matrix in the context
var viewParameters = context.Parameters;
viewParameters.Set(TransformationKeys.View, camera.ViewMatrix);
viewParameters.Set(TransformationKeys.Projection, camera.ProjectionMatrix);
viewParameters.Set(TransformationKeys.ViewProjection, camera.ViewProjectionMatrix);
viewParameters.Set(CameraKeys.NearClipPlane, camera.NearClipPlane);
viewParameters.Set(CameraKeys.FarClipPlane, camera.FarClipPlane);
viewParameters.Set(CameraKeys.VerticalFieldOfView, camera.VerticalFieldOfView);
viewParameters.Set(CameraKeys.OrthoSize, camera.OrthographicSize);
viewParameters.Set(CameraKeys.ViewSize, new Vector2(currentViewport.Width, currentViewport.Height));
viewParameters.Set(CameraKeys.AspectRatio, aspectRatio);
//viewParameters.Set(CameraKeys.FocusDistance, camera.FocusDistance);
}