`pllightsource`: Sets the 3D position of the light source
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#### `pllightsource`: Sets the 3D position of the light source

`pllightsource (` | x,
| y,
| z`)`;

Sets the 3D position of the light source for use with `plsurf3d`.

`x` (`PLFLT`, input)

  X-coordinate of the light source.

`y` (`PLFLT`, input)

  Y-coordinate of the light source.

`z` (`PLFLT`, input)

  Z-coordinate of the light source.

Redacted form: `pllightsource(x, y, z)`

This function is used in example 8.

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