<function name="SetDrawColor" parent="surface" type="libraryfunc"> <description> Set the color of any future shapes to be drawn, can be set by either using R, G, B, A as separate values or by a <page>Color</page>. <note>The alpha value may not work properly if you're using a material without `$vertexalpha`.</note> <note>Due to post processing and gamma correction the color you set with this function may appear differently when rendered. This problem does not occur on materials drawn with <page>surface.DrawTexturedRect</page>.</note> </description> <realm>Client and Menu</realm> <args> <arg name="r" type="number">The red value of color.</arg> <arg name="g" type="number">The green value of color.</arg> <arg name="b" type="number">The blue value of color.</arg> <arg name="a" type="number" default="255">The alpha value of color.</arg> </args> <args name="Use color object"> <arg name="color" type="table">A <page>Color</page> object/table to read the color from. This is slower than providing four numbers. You could use <page>Color:Unpack</page> to address this. You should also cache your color objects if you wish to use them, for performance reasons.</arg> <arg name="color" type="Color">A <page>Color</page> object/table to read the color from. This is slower than providing four numbers. You could use <page>Color:Unpack</page> to address this. You should also cache your color objects if you wish to use them, for performance reasons.</arg> </args> </function> <example> <description>Draws a 512x512 textured rectangle with the wireframe material.</description> <code> local myMaterial = Material( "models/wireframe" ) -- Calling Material() every frame is quite expensive hook.Add( "HUDPaint", "example_hook", function() surface.SetDrawColor( 255, 0, 0 ) -- Set the color to red surface.SetMaterial( myMaterial ) -- If you use Material, cache it! surface.DrawTexturedRect( 0, 0, 512, 512 ) end ) </code> </example>