Robert Siedel mixes sculpture and video projection in interesting ways. In one installation shown above, he uses the abstract built structure as a screen and projects video of changing colors and patterns to create bright and lively visuals. In the second piece, Siedel eliminates color and simply uses light to cast rich shadows that emphasize the depth and "create endless transitional spaces." The former, entitled Grapheme, is on permanent exhibition at Museum Wiesbaden and the latter,Tearing Shadows, was on display at 401contemporary in Berlin.
Check out this video of Tearing Shadows in motion: