public class Sandbox.VertexLayout.Position : Sandbox.VertexLayout.BaseAttribute

There are various interfaces that can be given to components for specific purposes.

To make a post process shader you should derive from BasePostProcess<T>. This makes it easier to make a component that will be able to blend from multiple others.

If you're just opting for default Vertex and Pixel inputs which are usable on the default shading model, these are the reference member variables for each:

The FilmGrain component adds simulated film-style grain to the camera output. It's purely visual – it does not affect gameplay or lighting – and is intended to add texture, grit or stylistic noise to the final image.

A GameObject represents an object in the scene world. It contains a few different elements.

If you want to access lighting information directly you can use this.