Requenes.com

Ideally, you would subscribe to a piece near to the time that it is started. The image itself might be created by an artist on a computer, or it might be created by a high-definition digital video camera that is focused on a conventional painting in the artist's studio. Obviously, in the latter case, you would also see anything that happens to pass between the painting and the camera, including the artist as he works on the piece.

The 4D painting experience would differ fundamentally from the viewing of a conventional painting. Obviously, the image is not static. It changes over time. There is an element of unpredictability to the 4D painting. You don't know when the artist is going to work on it. The work might "progress" while you're there, or while you're not.

On some days, the 4D painting would surprise you, like when you wake up to find that it snowed in the night. Or, you might come home from an evening out to find your happy painting is now totally changed, perhaps ruined, in your view.

Luckily, the rewind, pause, and fast-forward features typical of other linear media players are present in the 4D painting too. Once the painting is done (if much as it can be), you can leave it as-is or you can replay it at various speeds. Perhaps some artists would disable the rewind and playback features, in order to add an element of transientness to their work.

The 4D painting differs from computer animation in that the artist can not go back (in time) and edit the work. Every stroke is recorded in sequence and can not be changed.

I think to experience a 4D painting fully, you would have to refrain from channel surfing.