<cat>shader</cat> <title>g_sky</title> <shader> <description>This shader was especially designed to be used with maps, in particular the cube maps(up, down, front, back, left, right), they allow to modify the ambiance of a map.</description> <parameters> <item name="bottomcolor" type="Vector">The top bottom of the texture(used for gradient)</item> ⤶ <item name="duskcolor" type="Vector">The dusk color</item> ⤶ <item name="duskscale" type="number">The scale of the dusk</item> ⤶ <item name="duskintensity" type="number">The intensity of the dusk</item> ⤶ <item name="fadebias" type="number">The fade bias</item> ⤶ <item name="hdrscale" type="number">The HDR scale</item> ⤶ <item name="suncolor" type="Vector">The color of the sun</item> ⤶ <item name="sunnormal" type="Vector">The normal of the sun</item> ⤶ <item name="sunsize" type="number">The size of the sun</item> ⤶ <item name="topcolor" type="Vector">The top color of the texture(used for gradient)</item> <item name="bottomcolor" type="Vector">The top bottom of the texture(used for gradient)</item> ⤶ <item name="duskcolor" type="Vector">The dusk color</item> ⤶ <item name="duskscale" type="number">The scale of the dusk</item> ⤶ <item name="duskintensity" type="number">The intensity of the dusk</item> ⤶ <item name="fadebias" type="number">The fade bias</item> ⤶ <item name="hdrscale" type="number">The HDR scale</item> ⤶ <item name="suncolor" type="Vector">The color of the sun</item> ⤶ <item name="sunnormal" type="Vector">The normal of the sun</item> ⤶ <item name="sunsize" type="number">The size of the sun</item> ⤶ <item name="topcolor" type="Vector">The top color of the texture(used for gradient)</item> ⤶ <item name="startexture" type="string">Specifies which star texture will be used</item>⤶ ⤶ <item name="starfade" type="number">Determines how visible the stars are</item>⤶ ⤶ <item name="starscale" type="number">Determines the scale of the stars</item>⤶ ⤶ <item name="starpos" type="number">The scroll position of the star texture. Used for texture scrolling. Can be any value</item>⤶ ⤶ <item name="starlayers" type="number">Specifies how many layers of stars should be rendered. Accepts values between 0 and 4. 0 means no stars will be rendered</item>⤶ </parameters> ⤶ </shader>⤶ ⤶ </shader>⤶ ⤶ <example>⤶ <description>A basic example that shows how to create a material with this shader and render it.⤶ This particular example draws a custom skybox on top of the existing one.⤶ It uses `g_Sky`'s default parameters as an example.</description>⤶ <code>⤶ local sky_material = CreateMaterial("g_Sky_example", "g_Sky", {⤶ ["$topcolor"] = "[0 0 1]",⤶ ["$bottomcolor"] = "[0 1 1]",⤶ ["$fadebias"] = "1.0",⤶ ["$hdrscale"] = "1.0",⤶ ["$sunnormal"] = "[0 1 0.5]",⤶ ["$duskcolor"] = "[1 0.4 0]",⤶ ["$duskscale"] = "1",⤶ ["$duskintensity"] = "1.0",⤶ ["$suncolor"] = "[1 1 1]",⤶ ["$sunsize"] = "1",⤶ ["$startexture"] = "skybox/starfield",⤶ ["$starfade"] = "1",⤶ ["$starscale"] = "1",⤶ ["$starpos"] = "1",⤶ ["$starlayers"] = "0"⤶ })⤶ ⤶ local maxs = Vector(64, 64, 64)⤶ local mins = -maxs⤶ ⤶ hook.Add("PostDrawTranslucentRenderables", "", function(a, b, c)⤶ if b or c then⤶ local sun_info = util.GetSunInfo()⤶ sky_material:SetVector("$sunnormal", sun_info.direction)⤶ cam.Start3D(vector_origin, EyeAngles())⤶ render.SetMaterial(sky_material)⤶ cam.IgnoreZ(true)⤶ -- Swapped mins and maxs so that the box will render inside out⤶ render.DrawBox(vector_origin, angle_zero, maxs, mins, color_white)⤶ cam.IgnoreZ(false)⤶ cam.End3D()⤶ end⤶ end)⤶ </code>⤶ </example>