I have a sand dune scene with an image on a plane as the background. I'm ready to animate my camera with WASD controls, but in order to give the background the illusion that it is really far away, I need to pin it to the camera movement, kinda like what ducky3d did here with the sun in his scene.
The difference is I want to be able to more freely move the camera, but when I do it like the example in the video, the illusion doesn't work because the plane then becomes parented normal to the camera's movement in all degrees of freedom.
I want to be able to parent the plane only to the y-movement of my camera, while being able to move the camera in any way I want. Here are some pictures of my camera view and a screenshot of my scene.