Parallax (#131)

BuildChecker/BuildChecker.csproj

@@ -17,7 +17,7 @@ https://docs.microsoft.com/en-us/visualstudio/msbuild/msbuild
     <Python>python3</Python>
     <Python Condition="'$(OS)'=='Windows_NT' Or '$(OS)'=='Windows'">py -3</Python>
     <ProjectGuid>{C899FCA4-7037-4E49-ABC2-44DE72487110}</ProjectGuid>
-    <TargetFrameworkMoniker>.NETFramework, Version=v4.5.1</TargetFrameworkMoniker>
+    <TargetFrameworkMoniker>.NETFramework, Version=v4.7.1</TargetFrameworkMoniker>
   </PropertyGroup>
   <PropertyGroup>
     <OutputType>Library</OutputType>

Content.Client/Content.Client.csproj

@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Content.Client</RootNamespace>
     <AssemblyName>Content.Client</AssemblyName>
-    <TargetFrameworkVersion>v4.5.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.7.1</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <ContentAssemblyTarget>..\engine\bin\Client\Resources\Assemblies\</ContentAssemblyTarget>
     <LangVersion>7.2</LangVersion>
@@ -53,8 +53,12 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>
   <ItemGroup>
+    <PackageReference Include="Nett" Version="0.9.0" />
+    <PackageReference Include="SixLabors.Core" Version="1.0.0-beta0006" />
+    <PackageReference Include="SixLabors.ImageSharp" Version="1.0.0-beta0005" />
     <PackageReference Include="System.ValueTuple" Version="4.5.0" />
     <PackageReference Include="YamlDotNet" Version="5.0.1" />
+    <PackageReference Include="SharpZipLib" Version="1.0.0" />
   </ItemGroup>
   <ItemGroup>
     <Reference Include="System" />
@@ -81,6 +85,10 @@
     <Compile Include="Interfaces\IClientGameTicker.cs" />
     <Compile Include="Interfaces\IClientNotifyManager.cs" />
     <Compile Include="ClientNotifyManager.cs" />
+    <Compile Include="Interfaces\Parallax\IParallaxManager.cs" />
+    <Compile Include="Parallax\ParallaxGenerator.cs" />
+    <Compile Include="Parallax\ParallaxManager.cs" />
+    <Compile Include="Parallax\ParallaxOverlay.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="GameObjects\Components\Items\ClientHandsComponent.cs" />
     <Compile Include="Interfaces\GameObjects\Components\Items\IHandsComponent.cs" />
@@ -112,7 +120,7 @@
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <Import Project="..\SS14.Content.targets" />
-  <Target Name="AfterBuild" DependsOnTargets="CopyContentAssemblies" />
+  <!--<Target Name="AfterBuild" DependsOnTargets="CopyContentAssemblies" />-->
   <ItemGroup>
     <!-- Files to be copied into Client/Assemblies -->
     <ContentAssemblies Include="$(OutputPath)Content.Client.dll" />
@@ -131,4 +139,4 @@
     <Compile Include="Construction\ConstructionPlacementHijack.cs" />
     <Compile Include="GameObjects\Components\IconSmoothing\IconSmoothComponent.cs" />
   </ItemGroup>
-</Project>
+</Project>

Content.Client/EntryPoint.cs

@@ -8,8 +8,12 @@ using Content.Client.GameTicking;
 using Content.Client.Input;
 using Content.Client.Interfaces;
 using Content.Client.Interfaces.GameObjects;
+using Content.Client.Interfaces.Parallax;
+using Content.Client.Parallax;
 using Content.Shared.Interfaces;
 using SS14.Client;
+using SS14.Client.Interfaces;
+using SS14.Client.Interfaces.Graphics.Overlays;
 using SS14.Client.Interfaces.Input;
 using SS14.Client.Utility;
 using SS14.Shared.ContentPack;
@@ -79,7 +83,10 @@ namespace Content.Client
             IoCManager.Register<IClientNotifyManager, ClientNotifyManager>();
             IoCManager.Register<ISharedNotifyManager, ClientNotifyManager>();
             IoCManager.Register<IClientGameTicker, ClientGameTicker>();
+            IoCManager.Register<IParallaxManager, ParallaxManager>();
             IoCManager.BuildGraph();
+
+            IoCManager.Resolve<IParallaxManager>().LoadParallax();
         }
 
         public override void PostInit()
@@ -92,6 +99,7 @@ namespace Content.Client
 
             IoCManager.Resolve<IClientNotifyManager>().Initialize();
             IoCManager.Resolve<IClientGameTicker>().Initialize();
+            IoCManager.Resolve<IOverlayManager>().AddOverlay(new ParallaxOverlay());
         }
 
         public override void Update(AssemblyLoader.UpdateLevel level, float frameTime)

Content.Client/Interfaces/Parallax/IParallaxManager.cs

@@ -0,0 +1,12 @@
+using System;
+using SS14.Client.Graphics;
+
+namespace Content.Client.Interfaces.Parallax
+{
+    public interface IParallaxManager
+    {
+        event Action<Texture> OnTextureLoaded;
+        Texture ParallaxTexture { get; }
+        void LoadParallax();
+    }
+}

Content.Client/Parallax/ParallaxGenerator.cs

@@ -0,0 +1,417 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using Nett;
+using SixLabors.ImageSharp;
+using SixLabors.ImageSharp.PixelFormats;
+using SixLabors.Primitives;
+using SS14.Client.Utility;
+using SS14.Shared.Log;
+using SS14.Shared.Maths;
+using SS14.Shared.Noise;
+using BlendFactor = SS14.Shared.Maths.Color.BlendFactor;
+
+namespace Content.Client.Parallax
+{
+    public class ParallaxGenerator
+    {
+        private readonly List<Layer> Layers = new List<Layer>();
+
+        public static Image<Rgba32> GenerateParallax(TomlTable config, Size size)
+        {
+            Logger.DebugS("parallax", "Generating parallax!");
+            var generator = new ParallaxGenerator();
+            generator._loadConfig(config);
+
+            var image = new Image<Rgba32>(Configuration.Default, size.Width, size.Height, Rgba32.Black);
+            var count = 0;
+            foreach (var layer in generator.Layers)
+            {
+                layer.Apply(image);
+                Logger.DebugS("parallax", "Layer {0} done!", count++);
+            }
+
+            return image;
+        }
+
+        private void _loadConfig(TomlTable config)
+        {
+            foreach (var layerArray in config.Get<TomlTableArray>("layers").Items)
+            {
+                var layer = layerArray.Get<TomlTable>();
+                switch (layer.Get<string>("type"))
+                {
+                    case "noise":
+                        var layerNoise = new LayerNoise(layer);
+                        Layers.Add(layerNoise);
+                        break;
+
+                    case "points":
+                        var layerPoint = new LayerPoints(layer);
+                        Layers.Add(layerPoint);
+                        break;
+
+                    default:
+                        throw new NotSupportedException();
+                }
+            }
+        }
+
+        private abstract class Layer
+        {
+            public abstract void Apply(Image<Rgba32> bitmap);
+        }
+
+        private class LayerNoise : Layer
+        {
+            private readonly Color InnerColor = Color.White;
+            private readonly Color OuterColor = Color.Black;
+            private readonly NoiseGenerator.NoiseType NoiseType = NoiseGenerator.NoiseType.Fbm;
+            private readonly uint Seed = 1234;
+            private readonly double Persistence = 0.5;
+            private readonly double Lacunarity = Math.PI * 2 / 3;
+            private readonly double Frequency = 1;
+            private readonly uint Octaves = 3;
+            private readonly double Threshold;
+            private readonly double Power = 1;
+            private readonly BlendFactor SrcFactor = BlendFactor.One;
+            private readonly BlendFactor DstFactor = BlendFactor.One;
+
+            public LayerNoise(TomlTable table)
+            {
+                if (table.TryGetValue("innercolor", out var tomlObject))
+                {
+                    InnerColor = Color.FromHex(tomlObject.Get<string>());
+                }
+
+                if (table.TryGetValue("outercolor", out tomlObject))
+                {
+                    OuterColor = Color.FromHex(tomlObject.Get<string>());
+                }
+
+                if (table.TryGetValue("seed", out tomlObject))
+                {
+                    Seed = (uint) tomlObject.Get<int>();
+                }
+
+                if (table.TryGetValue("persistence", out tomlObject))
+                {
+                    Persistence = double.Parse(tomlObject.Get<string>(), CultureInfo.InvariantCulture);
+                }
+
+                if (table.TryGetValue("lacunarity", out tomlObject))
+                {
+                    Lacunarity = double.Parse(tomlObject.Get<string>(), CultureInfo.InvariantCulture);
+                }
+
+                if (table.TryGetValue("frequency", out tomlObject))
+                {
+                    Frequency = double.Parse(tomlObject.Get<string>(), CultureInfo.InvariantCulture);
+                }
+
+                if (table.TryGetValue("octaves", out tomlObject))
+                {
+                    Octaves = (uint) tomlObject.Get<int>();
+                }
+
+                if (table.TryGetValue("threshold", out tomlObject))
+                {
+                    Threshold = double.Parse(tomlObject.Get<string>(), CultureInfo.InvariantCulture);
+                }
+
+                if (table.TryGetValue("sourcefactor", out tomlObject))
+                {
+                    SrcFactor = (BlendFactor) Enum.Parse(typeof(BlendFactor), tomlObject.Get<string>());
+                }
+
+                if (table.TryGetValue("destfactor", out tomlObject))
+                {
+                    DstFactor = (BlendFactor) Enum.Parse(typeof(BlendFactor), tomlObject.Get<string>());
+                }
+
+                if (table.TryGetValue("power", out tomlObject))
+                {
+                    Power = double.Parse(tomlObject.Get<string>(), CultureInfo.InvariantCulture);
+                }
+
+                if (table.TryGetValue("noise_type", out tomlObject))
+                {
+                    switch (tomlObject.Get<string>())
+                    {
+                        case "fbm":
+                            NoiseType = NoiseGenerator.NoiseType.Fbm;
+                            break;
+                        case "ridged":
+                            NoiseType = NoiseGenerator.NoiseType.Ridged;
+                            break;
+                        default:
+                            throw new InvalidOperationException();
+                    }
+                }
+            }
+
+            public override void Apply(Image<Rgba32> bitmap)
+            {
+                var noise = new NoiseGenerator(NoiseType);
+                noise.SetSeed(Seed);
+                noise.SetFrequency(Frequency);
+                noise.SetPersistence(Persistence);
+                noise.SetLacunarity(Lacunarity);
+                noise.SetOctaves(Octaves);
+                noise.SetPeriodX(bitmap.Width);
+                noise.SetPeriodY(bitmap.Height);
+                var threshVal = 1 / (1 - Threshold);
+                var powFactor = 1 / Power;
+                for (var x = 0; x < bitmap.Width; x++)
+                {
+                    for (var y = 0; y < bitmap.Height; y++)
+                    {
+                        // Do noise calculations.
+                        var noiseVal = Math.Min(1, Math.Max(0, (noise.GetNoiseTiled(x, y) + 1) / 2));
+
+                        // Threshold
+                        noiseVal = Math.Max(0, noiseVal - Threshold);
+                        noiseVal *= threshVal;
+                        noiseVal = Math.Pow(noiseVal, powFactor);
+
+                        // Get colors based on noise values.
+                        var srcColor = Color.InterpolateBetween(InnerColor, OuterColor, (float) noiseVal)
+                            .WithAlpha((float) noiseVal);
+
+                        // Apply blending factors & write back.
+                        var dstColor = bitmap[x, y].ConvertImgSharp();
+                        bitmap[x, y] = Color.Blend(dstColor, srcColor, DstFactor, SrcFactor).ConvertImgSharp();
+                    }
+                }
+            }
+        }
+
+        private class LayerPoints : Layer
+        {
+            private readonly int Seed = 1234;
+            private readonly int PointCount = 100;
+
+            private readonly Color CloseColor = Color.White;
+            private readonly Color FarColor = Color.Black;
+
+            private readonly BlendFactor SrcFactor = BlendFactor.One;
+            private readonly BlendFactor DstFactor = BlendFactor.One;
+
+            // Noise mask stuff.
+            private readonly bool Masked;
+            private readonly NoiseGenerator.NoiseType MaskNoiseType = NoiseGenerator.NoiseType.Fbm;
+            private readonly uint MaskSeed = 1234;
+            private readonly double MaskPersistence = 0.5;
+            private readonly double MaskLacunarity = Math.PI * 2 / 3;
+            private readonly double MaskFrequency = 1;
+            private readonly uint MaskOctaves = 3;
+            private readonly double MaskThreshold;
+            private readonly int PointSize = 1;
+            private readonly double MaskPower = 1;
+
+
+            public LayerPoints(TomlTable table)
+            {
+                if (table.TryGetValue("seed", out var tomlObject))
+                {
+                    Seed = tomlObject.Get<int>();
+                }
+
+                if (table.TryGetValue("count", out tomlObject))
+                {
+                    PointCount = tomlObject.Get<int>();
+                }
+
+                if (table.TryGetValue("sourcefactor", out tomlObject))
+                {
+                    SrcFactor = (BlendFactor) Enum.Parse(typeof(BlendFactor), tomlObject.Get<string>());
+                }
+
+                if (table.TryGetValue("destfactor", out tomlObject))
+                {
+                    DstFactor = (BlendFactor) Enum.Parse(typeof(BlendFactor), tomlObject.Get<string>());
+                }
+
+                if (table.TryGetValue("farcolor", out tomlObject))
+                {
+                    FarColor = Color.FromHex(tomlObject.Get<string>());
+                }
+
+                if (table.TryGetValue("closecolor", out tomlObject))
+                {
+                    CloseColor = Color.FromHex(tomlObject.Get<string>());
+                }
+
+                if (table.TryGetValue("pointsize", out tomlObject))
+                {
+                    PointSize = tomlObject.Get<int>();
+                }
+
+                // Noise mask stuff.
+                if (table.TryGetValue("mask", out tomlObject))
+                {
+                    Masked = tomlObject.Get<bool>();
+                }
+
+                if (table.TryGetValue("maskseed", out tomlObject))
+                {
+                    MaskSeed = (uint) tomlObject.Get<int>();
+                }
+
+                if (table.TryGetValue("maskpersistence", out tomlObject))
+                {
+                    MaskPersistence = double.Parse(tomlObject.Get<string>(), CultureInfo.InvariantCulture);
+                }
+
+                if (table.TryGetValue("masklacunarity", out tomlObject))
+                {
+                    MaskLacunarity = double.Parse(tomlObject.Get<string>(), CultureInfo.InvariantCulture);
+                }
+
+                if (table.TryGetValue("maskfrequency", out tomlObject))
+                {
+                    MaskFrequency = double.Parse(tomlObject.Get<string>(), CultureInfo.InvariantCulture);
+                }
+
+                if (table.TryGetValue("maskoctaves", out tomlObject))
+                {
+                    MaskOctaves = (uint) tomlObject.Get<int>();
+                }
+
+                if (table.TryGetValue("maskthreshold", out tomlObject))
+                {
+                    MaskThreshold = double.Parse(tomlObject.Get<string>(), CultureInfo.InvariantCulture);
+                }
+
+                if (table.TryGetValue("masknoise_type", out tomlObject))
+                {
+                    switch (tomlObject.Get<string>())
+                    {
+                        case "fbm":
+                            MaskNoiseType = NoiseGenerator.NoiseType.Fbm;
+                            break;
+                        case "ridged":
+                            MaskNoiseType = NoiseGenerator.NoiseType.Ridged;
+                            break;
+                        default:
+                            throw new InvalidOperationException();
+                    }
+                }
+
+                if (table.TryGetValue("maskpower", out tomlObject))
+                {
+                    MaskPower = double.Parse(tomlObject.Get<string>(), CultureInfo.InvariantCulture);
+                }
+            }
+
+            public override void Apply(Image<Rgba32> bitmap)
+            {
+                // Temporary buffer so we don't mess up blending.
+                var buffer = new Image<Rgba32>(Configuration.Default, bitmap.Width, bitmap.Height, Rgba32.Black);
+
+                if (Masked)
+                {
+                    GenPointsMasked(buffer);
+                }
+                else
+                {
+                    GenPoints(buffer);
+                }
+
+                for (var x = 0; x < bitmap.Width; x++)
+                {
+                    for (var y = 0; y < bitmap.Height; y++)
+                    {
+                        var dstColor = bitmap[x, y].ConvertImgSharp();
+                        var srcColor = buffer[x, y].ConvertImgSharp();
+
+                        bitmap[x, y] = Color.Blend(dstColor, srcColor, DstFactor, SrcFactor).ConvertImgSharp();
+                    }
+                }
+            }
+
+            private void GenPoints(Image<Rgba32> buffer)
+            {
+                var o = PointSize - 1;
+                var random = new Random(Seed);
+                for (var i = 0; i < PointCount; i++)
+                {
+                    var relX = random.NextDouble();
+                    var relY = random.NextDouble();
+
+                    var x = (int) (relX * buffer.Width);
+                    var y = (int) (relY * buffer.Height);
+
+                    var dist = random.NextDouble();
+
+                    for (var ox = x - o; ox <= x + o; ox++)
+                    {
+                        for (var oy = y - o; oy <= y + o; oy++)
+                        {
+                            var color = Color.InterpolateBetween(FarColor, CloseColor, (float) dist).ConvertImgSharp();
+                            buffer[MathHelper.Mod(ox, buffer.Width), MathHelper.Mod(oy, buffer.Width)] = color;
+                        }
+                    }
+                }
+            }
+
+            void GenPointsMasked(Image<Rgba32> buffer)
+            {
+                var o = PointSize - 1;
+                var random = new Random(Seed);
+                var noise = new NoiseGenerator(MaskNoiseType);
+                noise.SetSeed(MaskSeed);
+                noise.SetFrequency(MaskFrequency);
+                noise.SetPersistence(MaskPersistence);
+                noise.SetLacunarity(MaskLacunarity);
+                noise.SetOctaves(MaskOctaves);
+                noise.SetPeriodX(buffer.Width);
+                noise.SetPeriodY(buffer.Height);
+
+                var threshVal = 1 / (1 - MaskThreshold);
+                var powFactor = 1 / MaskPower;
+
+                const int maxPointAttemptCount = 9999;
+                var pointAttemptCount = 0;
+
+                for (var i = 0; i < PointCount; i++)
+                {
+                    var relX = random.NextDouble();
+                    var relY = random.NextDouble();
+
+                    var x = (int) (relX * buffer.Width);
+                    var y = (int) (relY * buffer.Height);
+
+                    // Grab noise at this point.
+                    var noiseVal = Math.Min(1, Math.Max(0, (noise.GetNoiseTiled(x, y) + 1) / 2));
+                    // Threshold
+                    noiseVal = Math.Max(0, noiseVal - MaskThreshold);
+                    noiseVal *= threshVal;
+                    noiseVal = Math.Pow(noiseVal, powFactor);
+
+                    var randomThresh = random.NextDouble();
+                    if (randomThresh > noiseVal)
+                    {
+                        if (++pointAttemptCount <= maxPointAttemptCount)
+                        {
+                            i--;
+                        }
+
+                        continue;
+                    }
+
+                    var dist = random.NextDouble();
+
+                    for (var ox = x - o; ox <= x + o; ox++)
+                    {
+                        for (var oy = y - o; oy <= y + o; oy++)
+                        {
+                            var color = Color.InterpolateBetween(FarColor, CloseColor, (float) dist).ConvertImgSharp();
+                            buffer[MathHelper.Mod(ox, buffer.Width), MathHelper.Mod(oy, buffer.Height)] = color;
+                        }
+                    }
+                }
+            }
+        }
+    }
+}

Content.Client/Parallax/ParallaxManager.cs

@@ -0,0 +1,107 @@
+using System;
+using System.IO;
+using System.Text;
+using System.Threading.Tasks;
+using Content.Client.Interfaces.Parallax;
+using ICSharpCode.SharpZipLib.Checksum;
+using Nett;
+using SixLabors.ImageSharp;
+using SixLabors.Primitives;
+using SS14.Client.Graphics;
+using SS14.Client.Interfaces.ResourceManagement;
+using SS14.Shared.IoC;
+using SS14.Shared.Log;
+using SS14.Shared.Utility;
+
+namespace Content.Client.Parallax
+{
+    public class ParallaxManager : IParallaxManager
+    {
+#pragma warning disable 649
+        [Dependency] private readonly IResourceCache _resourceCache;
+#pragma warning restore 649
+
+        private static readonly ResourcePath ParallaxConfigPath = new ResourcePath("/parallax_config.toml");
+
+        // Both of these below are in the user directory.
+        private static readonly ResourcePath ParallaxPath = new ResourcePath("/parallax_cache.png");
+        private static readonly ResourcePath ParallaxConfigCrcPath = new ResourcePath("/parallax_config_crc");
+
+        public event Action<Texture> OnTextureLoaded;
+        public Texture ParallaxTexture { get; private set; }
+
+        public async void LoadParallax()
+        {
+            MemoryStream configStream = null;
+            long crcValue;
+            TomlTable table;
+            try
+            {
+                // Load normal config into memory
+                if (!_resourceCache.TryContentFileRead(ParallaxConfigPath, out configStream))
+                {
+                    Logger.ErrorS("parallax", "Parallax config not found.");
+                    return;
+                }
+
+                // Calculate CRC32 of the config file.
+                var crc = new Crc32();
+                crc.Update(configStream.ToArray());
+                crcValue = crc.Value;
+
+                // See if we we have a previous CRC stored.
+                if (_resourceCache.UserData.Exists(ParallaxConfigCrcPath))
+                {
+                    bool match;
+                    using (var data = _resourceCache.UserData.Open(ParallaxConfigCrcPath, FileMode.Open))
+                    using (var binaryReader = new BinaryReader(data))
+                    {
+                        match = binaryReader.ReadInt64() == crcValue;
+                    }
+
+                    // If the previous CRC matches, just load the old texture.
+                    if (match)
+                    {
+                        using (var stream = _resourceCache.UserData.Open(ParallaxPath, FileMode.Open))
+                        {
+                            ParallaxTexture = Texture.LoadFromPNGStream(stream);
+                        }
+
+                        OnTextureLoaded?.Invoke(ParallaxTexture);
+                        return;
+                    }
+                }
+
+                // Well turns out the CRC does not match so the config changed.
+                // Read the new config and get rid of the config memory stream.
+                using (var reader = new StreamReader(configStream, Encoding.UTF8))
+                {
+                    table = Toml.ReadString(reader.ReadToEnd());
+                }
+            }
+            finally
+            {
+                configStream?.Dispose();
+            }
+
+            // Generate the parallax in the thread pool.
+            var image = await Task.Run(() => ParallaxGenerator.GenerateParallax(table, new Size(1920, 1080)));
+            // And load it in the main thread for safety reasons.
+            ParallaxTexture = Texture.LoadFromImage(image);
+
+            // Store it and CRC so further game starts don't need to regenerate it.
+            using (var stream = _resourceCache.UserData.Open(ParallaxPath, FileMode.Create))
+            {
+                image.SaveAsPng(stream);
+            }
+
+            using (var stream = _resourceCache.UserData.Open(ParallaxConfigCrcPath, FileMode.Create))
+            using (var writer = new BinaryWriter(stream))
+            {
+                writer.Write(crcValue);
+            }
+
+            OnTextureLoaded?.Invoke(ParallaxTexture);
+        }
+    }
+}

Content.Client/Parallax/ParallaxOverlay.cs

@@ -0,0 +1,63 @@
+using Content.Client.Interfaces.Parallax;
+using SS14.Client.Graphics;
+using SS14.Client.Graphics.Drawing;
+using SS14.Client.Graphics.Overlays;
+using SS14.Client.Graphics.Shaders;
+using SS14.Client.Interfaces.Graphics.ClientEye;
+using SS14.Client.Interfaces.Graphics.Overlays;
+using SS14.Shared.IoC;
+using SS14.Shared.Maths;
+using SS14.Shared.Prototypes;
+
+namespace Content.Client.Parallax
+{
+    public class ParallaxOverlay : Overlay
+    {
+#pragma warning disable 649
+        [Dependency] private readonly IParallaxManager _parallaxManager;
+        [Dependency] private readonly IEyeManager _eyeManager;
+        [Dependency] private readonly IPrototypeManager _prototypeManager;
+#pragma warning restore 649
+
+        public override bool AlwaysDirty => true;
+        private const float Slowness = 0.5f;
+
+        private Texture _parallaxTexture;
+
+        public override OverlaySpace Space => OverlaySpace.ScreenSpaceBelowWorld;
+
+        public ParallaxOverlay() : base(nameof(ParallaxOverlay))
+        {
+            IoCManager.InjectDependencies(this);
+            Shader = _prototypeManager.Index<ShaderPrototype>("unshaded").Instance();
+
+            if (_parallaxManager.ParallaxTexture == null)
+            {
+                _parallaxManager.OnTextureLoaded += texture => _parallaxTexture = texture;
+            }
+            else
+            {
+                _parallaxTexture = _parallaxManager.ParallaxTexture;
+            }
+        }
+
+        protected override void Draw(DrawingHandle handle)
+        {
+            if (_parallaxTexture == null)
+            {
+                return;
+            }
+
+            var (sizeX, sizeY) = _parallaxTexture.Size;
+            var (posX, posY) = _eyeManager.ScreenToWorld(Vector2.Zero).ToWorld().Position;
+            var (ox, oy) = (Vector2i) new Vector2(-posX / Slowness, posY / Slowness);
+            ox = MathHelper.Mod(ox, sizeX);
+            oy = MathHelper.Mod(oy, sizeY);
+
+            handle.DrawTexture(_parallaxTexture, new Vector2(ox, oy));
+            handle.DrawTexture(_parallaxTexture, new Vector2(ox - sizeX, oy));
+            handle.DrawTexture(_parallaxTexture, new Vector2(ox, oy - sizeY));
+            handle.DrawTexture(_parallaxTexture, new Vector2(ox - sizeX, oy - sizeY));
+        }
+    }
+}

Content.Server/Content.Server.csproj

@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Content.Server</RootNamespace>
     <AssemblyName>Content.Server</AssemblyName>
-    <TargetFrameworkVersion>v4.5.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.7.1</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <ContentAssemblyTarget>..\engine\bin\Server\Resources\Assemblies\</ContentAssemblyTarget>
     <OutputPath>..\bin\Content.Server\</OutputPath>
@@ -159,7 +159,7 @@
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <Import Project="..\SS14.Content.targets" />
-  <Target Name="AfterBuild" DependsOnTargets="CopyContentAssemblies" />
+  <!--<Target Name="AfterBuild" DependsOnTargets="CopyContentAssemblies" />-->
   <ItemGroup>
     <ContentAssemblies Include="$(OutputPath)Content.Server.dll" />
     <ContentAssemblies Include="$(OutputPath)Content.Shared.dll" />

Content.Shared/Content.Shared.csproj

@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Content.Shared</RootNamespace>
     <AssemblyName>Content.Shared</AssemblyName>
-    <TargetFrameworkVersion>v4.5.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.7.1</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <OutputPath>bin\x86\Debug\</OutputPath>
     <ErrorReport>prompt</ErrorReport>

Content.Tests/Content.Tests.csproj

@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Content.Tests</RootNamespace>
     <AssemblyName>Content.Tests</AssemblyName>
-    <TargetFrameworkVersion>v4.5.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.7.1</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <TestProjectType>UnitTest</TestProjectType>
     <OutputPath>..\bin\Content.Tests\</OutputPath>
@@ -124,4 +124,4 @@
   <Target Name="AfterBuild">
   </Target>
   -->
-</Project>
+</Project>

Resources/parallax_config.toml

@@ -0,0 +1,89 @@
+# Background nebula detail.
+[[layers]]
+type = "noise"
+seed = 7832
+innercolor = "#A020E1"
+outercolor = "#490070"
+noise_type = "ridged"
+frequency = "4"
+octaves = 8
+power = "0.25"
+threshold = "0.40"
+
+# Mask background nebula.
+[[layers]]
+type = "noise"
+noise_type = "fbm"
+innercolor = "#000000"
+outercolor = "#000000"
+destfactor = "SrcAlpha"
+seed = 3551
+octaves = 4
+power = "0.35"
+lacunarity = "1.5"
+frequency = "3"
+threshold = "0.0"
+
+# Dim background nebula stars.
+[[layers]]
+type = "points"
+seed = 3909
+closecolor = "#4B5072"
+count = 1500
+mask = true
+masknoise_type = "fbm"
+maskoctaves = 4
+maskpersistence = "0.5"
+maskpower = "0.35"
+masklacunarity = "1.5"
+maskfrequency = "3"
+maskthreshold = "0.0"
+maskseed = 3551
+
+# Bright background nebula stars.
+[[layers]]
+type = "points"
+closecolor = "#7E86BF"
+count = 1000
+seed = 3472
+mask = true
+masknoise_type = "fbm"
+maskoctaves = 4
+maskpersistence = "0.5"
+maskpower = "0.35"
+masklacunarity = "1.5"
+maskfrequency = "3"
+maskthreshold = "0.37"
+maskseed = 3551
+
+# Bright background nebula stars, dim edge.
+[[layers]]
+type = "points"
+closecolor = "#3D415C"
+pointsize = 2
+count = 1000
+seed = 3472
+mask = true
+masknoise_type = "fbm"
+maskoctaves = 4
+maskpersistence = "0.5"
+maskpower = "0.35"
+masklacunarity = "1.5"
+maskfrequency = "3"
+maskthreshold = "0.37"
+maskseed = 3551
+
+# Couple of odd bright yellow-ish stars.
+[[layers]]
+type = "points"
+closecolor = "#FFD363"
+count = 100
+seed = 6454
+
+# And their dim edge.
+[[layers]]
+type = "points"
+closecolor = "#43371A"
+pointsize = 2
+count = 100
+seed = 6454