Adding files to the project

For this chapter, we will modify our existing ImageDetectionFilter class. We will also add files for the following new classes and interfaces:

• com.nummist.secondsight.ARCubeRenderer: A class representing the rendering logic for a cube that sits atop a tracked, real-world object. The class implements the GLSurfaceView.Renderer interface from the Android standard library. The projection matrix is determined by a CameraProjectionAdapter instance, and the cube's pose matrix is determined by an ARFilter instance, as described later.

• com.nummist.secondsight.adapters.CameraProjectionAdapter: A class representing the relationship between a physical camera and a projection matrix. The projection matrix may be fetched in either OpenCV or OpenGL format.

• com.nummist.secondsight.filters.ar.ARFilter: An interface representing a filter that captures the position and rotation of a real-world object as an OpenGL matrix. We will modify ImageDetectionFilter to implement this interface...