Terrain Sketches
Made-up landscapes rendered as maps: hillshade, contours and colour ramps.

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Timeouts and budgets for tiles
Large renders are cut into tiles with a time budget each. A tile that overruns is rendered at half resolution and marked for a second pass, so a print never wai

Contours at a fixed step
Thin lines where the height crosses a multiple of the step.

Colour ramps for elevation
Green low, brown high, white on top.

Hillshade from a heightmap
Light from the north-west, like most printed maps.