<function name="ComputeLighting" parent="render" type="libraryfunc"> <description>Calculates the light color at a certain position. This includes both ambient light and dynamic light. See also <page>render.ComputeDynamicLighting</page> for dynamic light only.</description>⤶ See <page>render.ComputeDynamicLighting</page> for dynamic light only.⤶ ⤶ See <page>render.GetAmbientLightColor</page> for map-wide ambient color.⤶ </description>⤶ <realm>Client</realm> <args> <arg name="position" type="Vector">The position to get the light at.</arg> <arg name="normal" type="Vector">The direction of an imaginary surface to get the light at. Pointing away from walls will get the lighting the wall receives. Pointing towards walls will not.</arg> </args> <rets> <ret name="" type="Vector">A vector representing the light at that point.</ret> </rets> </function> <example> <description> Visualizes light level at the spot player is looking at. </description> <code> hook.Add( "HUDPaint", "test_navmesh", function() local ply = LocalPlayer() local tr = ply:GetEyeTrace() local startPos = tr.HitPos local color = render.ComputeLighting( startPos, tr.HitNormal ) local colorDyn = render.ComputeDynamicLighting( startPos, tr.HitNormal ) local colorAmbi = color - colorDyn local pos2D = startPos:ToScreen() pos2D.x = pos2D.x + 30 draw.RoundedBox( 4, pos2D.x - 25, pos2D.y - 5, 250, 60, Color(0,0,0, 200 ) ) draw.SimpleText( "Color: " .. tostring(color), "Default", pos2D.x, pos2D.y, color_white ) draw.SimpleText( "Dynamic Color: " .. tostring(colorDyn), "Default", pos2D.x, pos2D.y + 20, color_white ) draw.SimpleText( "Ambient Color: " .. tostring(colorAmbi), "Default", pos2D.x, pos2D.y + 40, color_white ) draw.RoundedBox( 4, pos2D.x - 20, pos2D.y, 10, 10, Color( color.x * 255, color.y * 255, color.z * 255 ) ) draw.RoundedBox( 4, pos2D.x - 20, pos2D.y + 20, 10, 10, Color( colorDyn.x * 255, colorDyn.y * 255, colorDyn.z * 255 ) ) draw.RoundedBox( 4, pos2D.x - 20, pos2D.y + 40, 10, 10, Color( colorAmbi.x * 255, colorAmbi.y * 255, colorAmbi.z * 255 ) ) end ) </code> <output> <upload src="70c/8ded78d9538dee7.gif" size="3507824" name="July01-2855-gmod_win64.gif" /> </output> </example>