+/**
+Encapsulates all of the information used to produce a complete image in the
+framebuffer. This is the highest level rendering class.
+
+A Pipeline contains a sequence of passes. Each pass has a Renderable along
+with Lighting, Clipping, DepthTest and Blend states. Scenes can be used to
+organize Renderables within a pass. A Camera can be specified for the entire
+Pipeline.
+
+A Pipeline is also a Renderable itself. It will only respond to the default
+pass. The Renderables within the Pipeline will be invoked with whatever tags
+were specified when adding them.
+
+A Pipeline's render method should normally be called without a Renderer; it
+will create one itself, using the camera specified for the Pipeline. If a
+Renderer is passed, its camera will be used instead.
+
+PostProcessors can be applied after all of the passes in the Pipeline have been
+rendered. Framebuffer objects are automatically used to pass render results to
+the PostProcessors. High dynamic range and multisample rendering can be
+requested for increased quality.
+*/