摺紙, 肖像, 男人, 歷史, 單色

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2x2 grid, 16:9, do this for 4 famous emperors and their kingdoms: type PaperColor = Sepia | Cream | Parchment | Shadow data Material = AgedPaper PaperColor  -- B₁: Everything in the scene MUST be of type Material data SceneElement = Figure Material | Prop Material | Page Material | Text Material  -- B₂: The Z-Stack enforces physical depth data ZStack = Stack [SceneElement] -- Ordered from background (z=0) to foreground (z=n)  -- B₄: Lighting is a function that takes the Z-Stack and produces sharp layered shadows raking_light :: ZStack -> Image raking_light stack = apply_directional_light stack (angle=Low, softness=Soft, shadow_sharpness=High)  render :: ScientistArchetype -> Quote -> Image render s q = let figure = Figure (AgedPaper Cream) -- The scientist is made of paper                  pages = Page (AgedPaper Sepia)                  text  = Text (AgedPaper Parchment) -- The quote is cut from paper              in raking_light (Stack [pages, text, figure, pages])