--- layout: example.html title: Shaded Relief (with WebGL) shortdesc: Calculate shaded relief from elevation data docs: >

For the shaded relief, a single tiled source of elevation data is used as input. The shaded relief is calculated by the layer's `style` with a `color` expression. The style variables are updated when the user drags one of the sliders. The `band` operator is used to sample data from neighboring pixels for calculating slope and aspect, which is done with the `['band', bandIndex, xOffset, yOffset]` syntax.

tags: "webgl, shaded relief" ---

vertical exaggeration: |  | x
sun elevation: |  | °
sun azimuth: |  | °