<function name="GetWindSpeed" parent="game" type="libraryfunc"> <description> Returns the wind's velocity at a given position, as influenced by current map's [env_wind](https://developer.valvesoftware.com/wiki/Env_wind) entities. </description> <added>2026.01.17</added> <realm>Shared</realm> <args> <arg name="pos" type="Vector" default="nil"> The point to get wind speed at. If specified, wind controllers with `windradius` other than `-1` will be taken into account, if the point is within their radius. If omitted, only the global wind controller will be used (if one exists). <note> This argument will be ignored on the `CLIENT` <page text="realm">States</page> and will be treated as `nil` because the position of `env_wind` is not currently networked to clients. </note> </arg> </args> <rets> <ret name="windVelocity" type="Vector">`windDir * windSpeed` — the current wind direction multiplied by the current total wind speed. See [env_wind_shared.cpp#L255-L258](https://github.com/ValveSoftware/source-sdk-2013/blob/master/src/game/shared/env_wind_shared.cpp#L255-L258) for how it's calculated.</ret> </rets> </function> <example> <description> Visualizes the wind's speed and direction with a line in the center of the screen⤶ Visualizes the wind's speed and direction with a line in the center of the screen.⤶ </description> <code> local lineColor = Color( 175, 219, 245 ) hook.Add( "PostDrawTranslucentRenderables", "VisualizeWindVector", function() local windCheckPos = LocalPlayer():EyePos() + LocalPlayer():EyeAngles():Forward() * 100 render.DrawLine( windCheckPos, windCheckPos + game.GetWindSpeed( windCheckPos ), lineColor ) end ) </code> <output> <image src="b2b4c/8de5835cfe4c192.gif" size="840549" name="WindDirection.gif" /> </output> </example>