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Terrain Sketches

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

Hillshade from a heightmap

· updated

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

Hillshade is the dot product of the surface normal with a light direction. A sun at 315 degrees azimuth and 45 degrees altitude is the cartographic convention, even though the real sun never shines from the north-west in the northern hemisphere.

#hillshade