Added release build configs

.gitignore

@@ -3,3 +3,4 @@ obj/
 /packages/
 riderModule.iml
 /_ReSharper.Caches/
+publish/

.idea/.idea.SDFMapCreator/.idea/codeStyles/codeStyleConfig.xml

@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="PREFERRED_PROJECT_CODE_STYLE" value="Default" />
+  </state>
+</component>

.run/Release Build Linux-x64.run.xml

@@ -0,0 +1,6 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Release Build Linux-x64" type="DotNetFolderPublish" factoryName="Publish to folder">
+    <riderPublish configuration="Release" delete_existing_files="true" include_native_libs_for_self_extract="true" platform="Any CPU" produce_single_file="true" runtime="linux-x64" target_folder="$PROJECT_DIR$/SDFMapCreator/publish/linux-x64" target_framework="net8.0" uuid_high="-7972981449231152312" uuid_low="-5206031561210231144" />
+    <method v="2" />
+  </configuration>
+</component>

.run/Release Build Win-x64.run.xml

@@ -0,0 +1,6 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Release Build Win-x64" type="DotNetFolderPublish" factoryName="Publish to folder">
+    <riderPublish configuration="Release" delete_existing_files="true" include_native_libs_for_self_extract="true" platform="Any CPU" produce_single_file="true" runtime="win-x64" target_folder="$PROJECT_DIR$/SDFMapCreator/publish/win-x64" target_framework="net8.0" uuid_high="-7972981449231152312" uuid_low="-5206031561210231144" />
+    <method v="2" />
+  </configuration>
+</component>

SDFMapCreator.sln.DotSettings

@@ -0,0 +1,19 @@
+<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+	<s:String x:Key="/Default/CodeStyle/CSharpVarKeywordUsage/ForBuiltInTypes/@EntryValue">UseVar</s:String>
+	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpCodeStyle/BRACES_FOR_LOCK/@EntryValue">NotRequired</s:String>
+	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpCodeStyle/BRACES_REDUNDANT/@EntryValue">False</s:Boolean>
+	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpCodeStyle/DEFAULT_PRIVATE_MODIFIER/@EntryValue">Implicit</s:String>
+	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpCodeStyle/METHOD_OR_OPERATOR_BODY/@EntryValue">ExpressionBody</s:String>
+	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpCodeStyle/MODIFIERS_ORDER/@EntryValue">public private protected internal file new static abstract virtual override readonly sealed extern unsafe volatile async required</s:String>
+	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/PLACE_EXPR_METHOD_ON_SINGLE_LINE/@EntryValue">IF_OWNER_IS_SINGLE_LINE</s:String>
+	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/ALLOW_COMMENT_AFTER_LBRACE/@EntryValue">True</s:Boolean>
+	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/ANONYMOUS_METHOD_DECLARATION_BRACES/@EntryValue">END_OF_LINE</s:String>
+	<s:Int64 x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/BLANK_LINES_AROUND_SINGLE_LINE_INVOCABLE/@EntryValue">1</s:Int64>
+	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/INDENT_NESTED_FOR_STMT/@EntryValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/WRAP_BEFORE_ARROW_WITH_EXPRESSIONS/@EntryValue">True</s:Boolean>
+	<s:Int64 x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/WRAP_LIMIT/@EntryValue">151</s:Int64>
+	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/WRAP_OBJECT_AND_COLLECTION_INITIALIZER_STYLE/@EntryValue">WRAP_IF_LONG</s:String>
+	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ECSharpKeepExistingMigration/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ECSharpPlaceEmbeddedOnSameLineMigration/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ECSharpUseContinuousIndentInsideBracesMigration/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ESettingsUpgrade_002EMigrateBlankLinesAroundFieldToBlankLinesAroundProperty/@EntryIndexedValue">True</s:Boolean></wpf:ResourceDictionary>

SDFMapCreator.sln.DotSettings.user

@@ -1,4 +1,13 @@
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+	<s:String x:Key="/Default/CodeInspection/ExcludedFiles/FilesAndFoldersToSkip2/=7020124F_002D9FFC_002D4AC3_002D8F3D_002DAAB8E0240759_002Ff_003ACPUMultiprocessor_002Ecs_002Fl_003A_002E_002E_003F_002E_002E_003F_002E_002E_003F_002E_002E_003Fhome_003Fmm00_003F_002Econfig_003FJetBrains_003FRider2024_002E3_003Fresharper_002Dhost_003FSourcesCache_003F5d1e647f49ea4d7aa141f19476dc7451ae33d6321d7fb675b45f9b836878ca1a_003FCPUMultiprocessor_002Ecs/@EntryIndexedValue">ForceIncluded</s:String>
+	<s:String x:Key="/Default/CodeInspection/ExcludedFiles/FilesAndFoldersToSkip2/=7020124F_002D9FFC_002D4AC3_002D8F3D_002DAAB8E0240759_002Ff_003AEntryPointDescription_002Ecs_002Fl_003AC_0021_003FUsers_003Fairon_003FAppData_003FRoaming_003FJetBrains_003FRider2024_002E3_003Fresharper_002Dhost_003FSourcesCache_003F32b5380d8ca1aa7219c1622702a3e927b2bb32c9a53b43e12bb5a4af9a2862d_003FEntryPointDescription_002Ecs/@EntryIndexedValue">ForceIncluded</s:String>
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 	<s:String x:Key="/Default/Environment/AssemblyExplorer/XmlDocument/@EntryValue">&lt;AssemblyExplorer&gt;
   &lt;Assembly Path="/mnt/nvme2/Railgun/SDFMapCreator/SDFMapCreator/bin/Debug/net8.0/Magick.NET-Q16-HDRI-OpenMP-x64.dll" /&gt;

SDFMapCreator/ImageUtil.cs

@@ -0,0 +1,185 @@
+using System.Numerics;
+using SixLabors.ImageSharp;
+using SixLabors.ImageSharp.PixelFormats;
+
+namespace SDFMapCreator;
+
+public static class ImageUtil {
+    public static T[,] LoadImage<T>(string path) where T : struct, IEquatable<T> {
+        var image = SixLabors.ImageSharp.Image.Load(path);
+        return image switch {
+            Image<Rgba64> img => img.ProcessPixelsRgba64<T>(),
+            Image<Rgb24> img => img.ProcessPixelsRgb24<T>(),
+            Image<Rgba32> img => img.ProcessPixelsRgba32<T>(),
+            Image<Rgb48> img => img.ProcessPixelsRgb48<T>(),
+            _ => throw new NotSupportedException($"Image format not supported")
+        };
+    }
+
+    static T[,] ProcessPixelsRgba64<T>(this Image<Rgba64> image) where T : struct, IEquatable<T> {
+        var max = 65535f;
+        var width = image.Width;
+        var height = image.Height;
+        var result = new T[image.Width, image.Height];
+        image.ProcessPixelRows(accessor => {
+            //we use Y as the row index and X as the column index
+            for (var y = 0; y < height; y++) {
+                var span = accessor.GetRowSpan(y);
+                for (var x = 0; x < width; x++) {
+                    switch (result) {
+                        case float[,] f:
+                            f[x, y] = span[x].R / max * (span[x].A / max);
+                            break;
+                        case Vector2[,] f:
+                            f[x, y] = new Vector2(span[x].R / max, span[x].G / max) * new Vector2(span[x].A / max);
+                            break;
+                        case Vector3[,] f:
+                            f[x, y] = new Vector3(span[x].R / max, span[x].G / max, span[x].B / max) * new Vector3(span[x].A / max);
+                            break;
+                        case Vector4[,] f:
+                            f[x, y] = new(span[x].R / max, span[x].G / max, span[x].B / max, span[x].A / max);
+                            break;
+                    }
+                }
+            }
+        });
+        return result;
+    }
+
+    static T[,] ProcessPixelsRgb24<T>(this Image<Rgb24> image) where T : struct, IEquatable<T> {
+        var max = 255f;
+        var width = image.Width;
+        var height = image.Height;
+        var result = new T[image.Width, image.Height];
+        image.ProcessPixelRows(accessor => {
+            //we use Y as the row index and X as the column index
+            for (var y = 0; y < height; y++) {
+                var span = accessor.GetRowSpan(y);
+                for (var x = 0; x < width; x++) {
+                    switch (result) {
+                        case float[,] f:
+                            f[x, y] = span[x].R / max;
+                            break;
+                        case Vector2[,] f:
+                            f[x, y] = new(span[x].R / max, span[x].G / max);
+                            break;
+                        case Vector3[,] f:
+                            f[x, y] = new(span[x].R / max, span[x].G / max, span[x].B / max);
+                            break;
+                        case Vector4[,] f:
+                            f[x, y] = new(span[x].R / max, span[x].G / max, span[x].B / max, 1f);
+                            break;
+                    }
+                }
+            }
+        });
+        return result;
+    }
+
+    static T[,] ProcessPixelsRgba32<T>(this Image<Rgba32> image) where T : struct, IEquatable<T> {
+        var max = 255f;
+        var width = image.Width;
+        var height = image.Height;
+        var result = new T[image.Width, image.Height];
+        image.ProcessPixelRows(accessor => {
+            //we use Y as the row index and X as the column index
+            for (var y = 0; y < height; y++) {
+                var span = accessor.GetRowSpan(y);
+                for (var x = 0; x < width; x++) {
+                    switch (result) {
+                        case float[,] f:
+                            f[x, y] = span[x].R / max * (span[x].A / max);
+                            break;
+                        case Vector2[,] f:
+                            f[x, y] = new Vector2(span[x].R / max, span[x].G / max) * new Vector2(span[x].A / max);
+                            break;
+                        case Vector3[,] f:
+                            f[x, y] = new Vector3(span[x].R / max, span[x].G / max, span[x].B / max) * new Vector3(span[x].A / max);
+                            break;
+                        case Vector4[,] f:
+                            f[x, y] = new(span[x].R / max, span[x].G / max, span[x].B / max, span[x].A / max);
+                            break;
+                    }
+                }
+            }
+        });
+        return result;
+    }
+
+    static T[,] ProcessPixelsRgb48<T>(this Image<Rgb48> image) where T : struct, IEquatable<T> {
+        var max = 65535f;
+        var width = image.Width;
+        var height = image.Height;
+        var result = new T[image.Width, image.Height];
+        image.ProcessPixelRows(accessor => {
+            //we use Y as the row index and X as the column index
+            for (var y = 0; y < height; y++) {
+                var span = accessor.GetRowSpan(y);
+                for (var x = 0; x < width; x++) {
+                    switch (result) {
+                        case float[,] f:
+                            f[x, y] = span[x].R / max;
+                            break;
+                        case Vector2[,] f:
+                            f[x, y] = new(span[x].R / max, span[x].G / max);
+                            break;
+                        case Vector3[,] f:
+                            f[x, y] = new(span[x].R / max, span[x].G / max, span[x].B / max);
+                            break;
+                        case Vector4[,] f:
+                            f[x, y] = new(span[x].R / max, span[x].G / max, span[x].B / max, 1f);
+                            break;
+                    }
+                }
+            }
+        });
+        return result;
+    }
+
+    public static void SaveImage<T>(this T[,] array, string path) where T : struct, IEquatable<T> {
+        var width = array.GetLength(0);
+        var height = array.GetLength(1);
+        uint channels = array switch {
+            float[,] => 1,
+            Vector2[,] => 2,
+            Vector3[,] => 3,
+            Vector4[,] => 4,
+            _ => throw new NotSupportedException($"Type {typeof(T)} is not supported.")
+        };
+        Console.Write($"Writing image {path}...");
+        using Image<Rgb48> image = new(width, height);
+        image.ProcessPixelRows(accessor => {
+            for (var y = 0; y < height; y++) {
+                var span = accessor.GetRowSpan(y);
+                for (var x = 0; x < width; x++) {
+                    switch (array) {
+                        case float[,] f:
+                            span[x] = new((ushort)(f[x, y] * 65535), (ushort)(f[x, y] * 65535), (ushort)(f[x, y] * 65535));
+                            break;
+                        case Vector2[,] f:
+                            span[x] = new((ushort)(f[x, y].X * 65535), (ushort)(f[x, y].Y * 65535), 0);
+                            break;
+                        case Vector3[,] f:
+                            span[x] = new((ushort)(f[x, y].X * 65535), (ushort)(f[x, y].Y * 65535), (ushort)(f[x, y].Z * 65535));
+                            break;
+                        case Vector4[,] f:
+                            span[x] = new((ushort)(f[x, y].X * 65535), (ushort)(f[x, y].Y * 65535), (ushort)(f[x, y].Z * 65535));
+                            break;
+                    }
+                }
+            }
+        });
+        Console.WriteLine($"Done!");
+        image.Save(path);
+    }
+
+    static void ImageData(SixLabors.ImageSharp.Image image1, string path) {
+        Console.WriteLine(
+            $"""
+             Image file: {path}
+             Resolution: {image1.Width}x{image1.Height}
+             Total Pixels: {image1.Width * image1.Height} |{"NaN"} channels, {image1.PixelType.BitsPerPixel / 4} bits per channel
+
+             """);
+    }
+}

SDFMapCreator/Program.cs

@@ -1,226 +1,188 @@
 using System.Diagnostics;
 using System.Numerics;
 using System.Runtime.CompilerServices;
-using ImageMagick;
-using float2 = System.Numerics.Vector2;
-using float3 = System.Numerics.Vector3;
-using float4 = System.Numerics.Vector4;
 
-/*
+namespace SDFMapCreator;
-public struct float2(float x, float y) {
-    public float x = x, y = y;
-}
 
-public struct float3(float r, float g, float b) {
+public static class Program {
-    public float r = r, g = g, b = b;
+    const float MAX = 1f;
-    public float3(float value) : this(value, value, value) {}
+    const float MIN = 0f;
-    public float3(float r, float g) : this(r, g, 0f) {}
+    static readonly int MAX_THREADS = Environment.ProcessorCount - 2;
-}
+    static bool debug = true;
-
-public struct float4(float r, float g, float b, float a) {
-    public float r = r, g = g, b = b, a = a;
-    public float4(float value) : this(value, value, value, value) {}
-    public float4(float r, float g, float b) : this(r, g, b, 1f) {}
-}*/
-
-public record ImageData(MagickImage Image, float3[,] Pixels, List<float2> Edges);
-public record MaskData(float3[,] Mask, ImageData Image, List<float2> Edges);
-public record TransitionMaskData(float3[,] Mask, ImageData ImageA, ImageData ImageB);
-
-public record SDFData(float3[,] SDF);
-
-public static class ArrayExt {
-    public static float3[,] To2DFloat3(this float[] array, uint width, uint height) {
-        float3[,] result = new float3[width, height];
-        for(int i = 0; i < width*height; i++) {
-            uint x = (uint)(i % width);
-            uint y = (uint)(i / width);
-            result[y, x] = new (array[i*3], array[i*3+1], array[i*3+2]);
-        }
-        return result;
-    }
-    
-    public static float[] ToFloatArray(this float3[,] array) {
-        float[] result = new float[array.GetLength(0) * array.GetLength(1) * 3];
-        for(int x = 0; x < array.GetLength(0); x++) {
-            for(int y = 0; y < array.GetLength(1); y++) {
-                result[x*array.GetLength(1)*3 + y*3] = array[x, y].X;
-                result[x*array.GetLength(1)*3 + y*3+1] = array[x, y].Y;
-                result[x*array.GetLength(1)*3 + y*3+2] = array[x, y].Z;
-            }
-        }
-        return result;
-    }
-}
-
-public class  Program {
-    private const float MAX = 65535f;
-    private const float MIN = 0f;
-    private static readonly int MAX_THREADS = Environment.ProcessorCount - 2;
-    private const bool outputMasks = true;
-    private const bool outputSDFs = true;
-    private const bool outputGradients = true;
     static readonly ParallelOptions parallelOptions = new() { MaxDegreeOfParallelism = MAX_THREADS };
-    static List<ImageData> Images = new();
+    static List<Image> Images = new();
-    static List<TransitionMaskData> TransitionMasks = new();
     static List<MaskData> ImageMasks = new();
+    static List<TransitionMaskData> TransitionMasks = new();
     static List<SDFData> SDFs = new();
-    static List<float3[,]> Gradients = new();
+    static List<Vector3[,]> Gradients = new();
+    static readonly SdfKernels kernels = new();
+    static uint width;
+    static uint height;
 
-    static void ConsoleUpdateLine(string s) => Console.Write("\r"+s);
+    static void ConsoleUpdateLine(string s) => Console.Write("\r" + s);
-    
-    static void LoadImage(string imgPath) {
-        var image = new MagickImage(imgPath);
-        float3[,] pixels;
-        if(image.Channels.Count() ==4)
-            //skip ever 4th value if we have an alpha channel
-            pixels = image.GetPixels().ToArray()!
-                .Where((_, i) => (i + 1) % 4 != 0).ToArray()
-                .To2DFloat3(image.Width, image.Height);
-        else
-            pixels = image.GetPixels().ToArray()!
-                .To2DFloat3(image.Width, image.Height);
-        Images.Add(new (image, pixels, new()));
-        Console.WriteLine($"Loaded image: {imgPath}");
-        ImageData(image, image.GetPixels());
-    }
 
     public static void Main(string[] args) {
         Console.WriteLine("Reading images...");
-        //foreach image in arguments load the image
+
+        if (debug) {
+            if (!Directory.Exists("Debug")) Directory.CreateDirectory("Debug");
+            Console.WriteLine("Debug mode enabled.");
+        }
+
         
         var imagesPath = "images";
+        for (var i = 0; i < 8; i++) {
+            var pixels = ImageUtil.LoadImage<Vector3>($"./{imagesPath}{Path.DirectorySeparatorChar}{i + 1:00}.png");
+            Images.Add(new(pixels, pixels.GetLength(0), pixels.GetLength(1)));
+        }
 
+        /*
+        var pixels = ImageUtil.LoadImage<Vector3>($"./sphereempty.png");
+        Images.Add(new(pixels, pixels.GetLength(0), pixels.GetLength(1)));
+        pixels = ImageUtil.LoadImage<Vector3>($"./spherehalf.png");
+        Images.Add(new(pixels, pixels.GetLength(0), pixels.GetLength(1)));
+        pixels = ImageUtil.LoadImage<Vector3>($"./spherecut.png");
+        Images.Add(new(pixels, pixels.GetLength(0), pixels.GetLength(1)));
+        pixels = ImageUtil.LoadImage<Vector3>($"./spherefull.png");
+        Images.Add(new(pixels, pixels.GetLength(0), pixels.GetLength(1)));
+*/
 
-        for (int i = 0; i < 8; i++)
-            LoadImage($"./{imagesPath}{Path.DirectorySeparatorChar}{i+1:00}.png");
-        
-        
-        //LoadImage("spherecut.png");
-        //LoadImage("spherefull.png");
-        
-        //LoadImage("1.png");
-        //LoadImage("2.png");
         //check if all the images in Images are the same resolution
-        if (Images.Select(img => (img.Image.Width, img.Image.Height)).Distinct().Count() > 1) {
+        if (Images.Select(img => (img.Width, img.Height)).Distinct().Count() > 1) {
             Console.WriteLine("Error: Not all images have the same resolution.");
             Environment.Exit(1);
         }
 
+        width = (uint)Images[0].Width;
+        height = (uint)Images[0].Height;
+        
+        // sum all images together
+        if(debug) Images[0].Pixels.SaveImage("Debug/Sum0.png");
+
+        for (int i = 1; i < Images.Count; i++) {
+            for (int x = 0; x < Images[i].Width; x++) {
+                for (int y = 0; y < Images[i].Height; y++) {
+                    Images[i].Pixels[x, y].X = MathF.Min(Images[i - 1].Pixels[x, y].X + Images[i].Pixels[x, y].X, MAX);
+                    Images[i].Pixels[x, y].Y = MathF.Min(Images[i - 1].Pixels[x, y].Y + Images[i].Pixels[x, y].X, MAX);
+                    Images[i].Pixels[x, y].Z = MathF.Min(Images[i - 1].Pixels[x, y].Z + Images[i].Pixels[x, y].X, MAX);
+                }
+            }
+
+            if(debug)Images[i].Pixels.SaveImage($"Debug/Sum{i}.png");
+        }
+        
+
         Console.WriteLine("Creating masks...");
-        //for each image pair, create a mask
+        for (var i = 0; i < Images.Count; i++) { //for each image pair, create a mask
-        var width = Images[0].Image.Width;
+            var selfMask = SelfMask(Images[i].Pixels);
-        var height = Images[0].Image.Height;
+            ImageMasks.Add(new(selfMask, Images[i], new()));
-        for (int i = 0; i < Images.Count; i++) {
+            if (debug) selfMask.SaveImage($"Debug/selfMask{i}.png");
-            ImageMasks.Add(new (SelfMask(Images[i].Pixels, width, height), Images[i], new()));
+            if (i >= Images.Count - 1) continue;
-            
+            ConsoleUpdateLine($"Creating mask {i}...");
-            if (i < Images.Count - 1)
+            var mask = GetABMask(Images[i].Pixels, Images[i + 1].Pixels);
-            {
+            TransitionMasks.Add(new(mask, Images[i], Images[i + 1]));
-                Console.WriteLine($"Creating mask {i}...");
-                var mask = GetABMask(Images[i].Pixels, Images[i + 1].Pixels, width, height);
-                TransitionMasks.Add(new(mask, Images[i], Images[i + 1]));
-            }
         }
 
-        Console.WriteLine("Edge detecting masks...");
         //EdgeDetect all masks
-        foreach (var t in ImageMasks) { EdgeDetect(t); }
+        Console.WriteLine("\nEdge detecting masks...");
-        
+        foreach (var mask in ImageMasks) {
-        if(outputMasks) {
+            ConsoleUpdateLine($"Edge detecting mask {ImageMasks.IndexOf(mask)}...");
-            Console.WriteLine("Writing masks...");
+            EdgeDetect(mask);
-            for (int i = 0; i < TransitionMasks.Count; i++) {
-                var mask = new MagickImage(MagickColors.Black, (uint)TransitionMasks[i].Mask.GetLength(0), (uint)TransitionMasks[i].Mask.GetLength(1));
-                mask.GetPixels().SetPixels(TransitionMasks[i].Mask.ToFloatArray());
-                mask.Write($"mask{i}.png", MagickFormat.Png24);
-            }
         }
+        if (debug)
+            for (var i = 0; i < TransitionMasks.Count; i++)
+                ImageMasks[i].Mask.SaveImage($"Debug/mask{i}.png");
 
         Console.WriteLine("Creating SDFs...");
         for (var i = 0; i < ImageMasks.Count; i++) {
             var mask = ImageMasks[i];
             SDFs.Add(SDF(mask));
-            if(!outputSDFs) continue;
+            if (debug) SDFs[i].SDF.SaveImage($"Debug/sdf{i}.png");
-            var sdf = new MagickImage(MagickColors.Black, (uint)mask.Mask.GetLength(0), (uint)mask.Mask.GetLength(1));
-            sdf.GetPixels().SetPixels(SDFs[i].SDF.ToFloatArray());
-            sdf.Write($"sdf{i}.png", MagickFormat.Png48);
         }
 
         Console.WriteLine("Creating gradients...");
         for (var i = 0; i < TransitionMasks.Count; i++) {
-            Console.WriteLine($"Generating gradient {i}...");
+            ConsoleUpdateLine($"Generating gradient {i}...");
             var gradientData = Gradient(TransitionMasks[i], SDFs[i], SDFs[i + 1]);
             Gradients.Add(gradientData);
-            if(!outputGradients) continue;
+            if (debug) gradientData.SaveImage($"Debug/gradient{i}.png");
-            var gradient = new MagickImage(MagickColors.Black, (uint)TransitionMasks[i].Mask.GetLength(0), (uint)TransitionMasks[i].Mask.GetLength(1));
-            gradient.GetPixels().SetPixels(gradientData.ToFloatArray());
-            gradient.Write($"gradient{i}.png", MagickFormat.Png24);
         }
 
         // generate final image
-        var finalImage = new float3[width, height];
+        var finalImage = new Vector3[width, height];
         var currStep = 0f;
-        var stepIncrement = MAX / (Gradients.Count + 1);
+        var stepIncrement = MAX / Gradients.Count;
+
+        
+        for (var x = 0; x < width; x++)
+            for (var y = 0; y < height; y++)
+                finalImage[x, y] = new(ImageMasks[0].Mask[x, y].X != 0 || ImageMasks[0].Mask[x, y].Y > 0 ? MAX : MIN);
+        
         for (var i = 0; i < Gradients.Count; i++) {
             var mask = ImageMasks[i + 1];
             var gradient = Gradients[i];
+            Console.WriteLine($"Applying gradient {i}..., {currStep} -> {currStep + stepIncrement}");
             for (var x = 0; x < mask.Mask.GetLength(0); x++) {
                 for (var y = 0; y < mask.Mask.GetLength(1); y++) {
-                    if (mask.Mask[x, y].X == 0 || mask.Mask[x, y].Y > 0) continue;
+                    if (mask.Mask[x,y].X == 0) continue;
-                    finalImage[x, y] = new(Remap(gradient[x,y].X, MAX, MIN, currStep, currStep + stepIncrement));
+                    var pixel = new Vector3(Remap(gradient[x, y].X, MIN, MAX, 1.0f - currStep,
+                        1.0f - (currStep + stepIncrement)));
+                    if (pixel.X > finalImage[x, y].X) finalImage[x, y] = pixel;
                 }
             }
             currStep += stepIncrement;
         }
         
-        var finalImageMagick = new MagickImage(MagickColors.Black, (uint)width, (uint)height);
+        finalImage.SaveImage("Debug/Final.png");
-        finalImageMagick.GetPixels().SetPixels(finalImage.ToFloatArray());
-        finalImageMagick.Write("final.png", MagickFormat.Png24);
 
+        // apply directional blur
+        var iterations = 1;
+        var radius = 100f;
+        var step = .5f;
+        var sigma = 1f;
+        var totalMask = SelfMask(Images[^1].Pixels);
+        totalMask.SaveImage("Debug/TotalMask.png");
+        for (var i = 0; i < iterations; i++) {
+            Console.WriteLine($"Applying directional blur {i + 1}/{iterations}...");
+            finalImage = DirectionalBlur(finalImage, totalMask, radius, step, sigma);
+        }
+
+        finalImage.SaveImage("finalBlur.png");
         Console.WriteLine("Done!");
     }
 
-    private static void EdgeDetect(MaskData maskData) {
+    static void EdgeDetect(MaskData maskData) {
-        uint width = maskData.Image.Image.Width;
-        uint height = maskData.Image.Image.Height;
-        int iterCount = 0;
         var sw = new Stopwatch();
         sw.Start();
         Console.WriteLine("Running edge detection...");
+        kernels.EdgeDetect(maskData.Mask, out var temp);
+        maskData.Mask = temp;
         Parallel.For(0, width * height, parallelOptions, (i) => {
-            int x = (int)(i % width);
+            if (maskData.Mask[i % width, i / width].Y == 0) return;
-            int y = (int)(i / width);
+            // ReSharper disable once PossibleLossOfFraction
-            
+            lock (maskData.Edges) maskData.Edges.Add(new(i % width, i / width));
-            if (!EdgeKernel(maskData.Mask, x, y, width, height)) return;
-            var color = maskData.Mask[x, y];
-            color.Y = MAX;
-            maskData.Mask[x, y] = color;
-            lock(maskData.Edges) maskData.Edges.Add(new(x, y));
-            iterCount++;
-            if (iterCount % (width * height / 100) == 0) {
-                ConsoleUpdateLine($"Progress: {iterCount/(float)(width*height):P} | {iterCount/(sw.Elapsed.TotalSeconds):N0} pixels/s");
-            }
         });
+
         sw.Stop();
-        Console.WriteLine($"Edge pixels: {maskData.Edges.Count} | {maskData.Edges.Count/sw.ElapsedMilliseconds} pixels/s\n Time: {sw.Elapsed.TotalSeconds:F4}s");
+        Console.WriteLine(
+            $"\nEdge pixels: {maskData.Edges.Count} | {width * height / (sw.ElapsedMilliseconds + 1)} pixels/s\n Time: {sw.Elapsed.TotalSeconds:F4}s");
     }
 
-    static float3[,] Gradient(TransitionMaskData mask, SDFData sdfA, SDFData sdfB) {
+    static Vector3[,] Gradient(TransitionMaskData mask, SDFData sdfA, SDFData sdfB) {
-        uint width = mask.ImageA.Image.Width;
-        uint height = mask.ImageA.Image.Height;
-        int iterCount = 0;
         var sw = new Stopwatch();
         sw.Start();
-        float3[,] temp = new float3[width, height];
+        /*Vector3[,] temp = new Vector3[width, height];
 
         var min = MAX;
         var max = MIN;
 
         Console.WriteLine("Running gradient generation...");
-        Parallel.For(0, width * height, parallelOptions, (i) => {
+        Parallel.For(0, width * height, parallelOptions, (i) =>
+        {
             int x = (int)(i % width);
             int y = (int)(i / width);
 
-            if(mask.Mask[x,y].X == 0 || mask.Mask[x,y].Y > 0) return;
+            if (mask.Mask[x, y].X == 0 || mask.Mask[x, y].Y > 0) return;
 
             var a = sdfA.SDF[x, y].X;
             var b = sdfB.SDF[x, y].X;
@@ -230,123 +192,67 @@ public class  Program {
 
             if (gradient < min) min = gradient;
             if (gradient > max) max = gradient;
-        });
+        });*/
 
-        Console.WriteLine($"Gradient Time: {sw.Elapsed.TotalSeconds:N4}s ({iterCount/(float)sw.Elapsed.TotalSeconds:N0} pixels/s)");
+        kernels.Gradient(mask.Mask, sdfA.SDF, sdfB.SDF, out var temp);
-        Console.WriteLine($"Min: {min} | Max: {max}");
+        Console.WriteLine($"Gradient Time: {sw.Elapsed.TotalSeconds:N4}s ({width * height / (float)sw.Elapsed.TotalSeconds:N0} pixels/s)");
         return temp;
     }
 
     static SDFData SDF(MaskData mask) {
-        var width = (uint)mask.Mask.GetLength(0);
-        var height = (uint)mask.Mask.GetLength(1);
-        var temp = new float3[width, height];
-        float AbsMax = MIN;
-        int iterCount = 0;
         var sw = new Stopwatch();
         sw.Start();
-        Parallel.For(0, width * height, parallelOptions, (i) => {
+        kernels.Sdf(mask.Edges.ToArray(), (int)width, (int)height, out var temp);
-            //convert 1D index to 2D index
+        Console.WriteLine($"\nSDF Generation Time: {sw.Elapsed.TotalSeconds:N4}s ({width * height / sw.Elapsed.TotalSeconds:N0} pixels/s)");
-            var x = (int)(i % width);
-            var y = (int)(i / width);
-            float2 p = new(x, y);
 
-            float minDist = MAX; //initialize the minimum distance to the maximum possible value
-            
-            //loop through all the pixels in the mask
-            foreach (var edge in mask.Edges) {
-                float dist = float2.DistanceSquared(p, edge);
-                if (dist < minDist) minDist = mask.Mask[x, y].X == 0 ? dist : dist;
-            }
-            
-            temp[x, y] = new(minDist);
-            if (minDist > AbsMax) AbsMax = minDist;
-            iterCount++;
-            if (iterCount % (width * height / 100) == 0) {
-                ConsoleUpdateLine($"Progress: {iterCount/(width*height):P}% | {iterCount/(sw.Elapsed.TotalSeconds):N0} pixels/s");
-            }
-        });
-
-        Console.WriteLine($"SDF Generation Time: {sw.Elapsed.TotalSeconds:N4}s ({iterCount/sw.Elapsed.TotalSeconds:N0} pixels/s)");
         sw.Restart();
+        var absMax = 0f;
+        foreach (var pixel in temp) {
+            if (pixel.X > absMax) absMax = pixel.X;
+        }
+
         Parallel.For(0, width * height, parallelOptions, (i) => {
             //convert 1D index to 2D index
             var x = (int)(i % width);
             var y = (int)(i / width);
-            temp[x, y] = new(Remap(temp[x, y].X, 0, AbsMax, MIN, MAX));
+            temp[x, y] = new(Remap(temp[x, y].X, 0, absMax, MIN, MAX));
         });
         sw.Stop();
 
-        Console.WriteLine($"SDF Normalization Time: {sw.Elapsed.TotalSeconds:N4}s ({iterCount/sw.Elapsed.TotalSeconds:N0} pixels/s)");
+        Console.WriteLine(
-        Console.WriteLine("AbsMax: " + AbsMax);
+            $"SDF Normalization Time: {sw.Elapsed.TotalSeconds:N4}s ({width * height / sw.Elapsed.TotalSeconds:N0} pixels/s)");
+
         return new(temp);
     }
 
+    static Vector3[,] DirectionalBlur(Vector3[,] image, Vector3[,] mask, float radius = 3f, float step = .5f, float sigma = 1f) {
+        var sw = new Stopwatch();
+        sw.Start();
+        kernels.DirectionalBlur(image, mask, out var temp, radius, step, sigma);
+        Console.WriteLine(
+            $"Directional Blur Time: {sw.Elapsed.TotalSeconds:N4}s ({width * height / sw.Elapsed.TotalSeconds:N0} pixels/s)");
+        return temp;
+    }
+
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    private static float EuclideanDistance(float2 a, float2 b) =>
+    static float EuclideanDistance(Vector2 a, Vector2 b) =>
         MathF.Sqrt(MathF.Pow(a.X - b.X, 2) + MathF.Pow(a.Y - b.Y, 2));
 
-    private static void ImageData(MagickImage image1, IPixelCollection<float> pixels1) {
+    static Vector3[,] GetABMask(Vector3[,] A, Vector3[,] B) {
-        Console.WriteLine(
+        kernels.ABMask(A, B, out var temp);
-            $"""
-             Image file: {image1.Format.ToString()}
-             Resolution: {image1.Width}x{image1.Height}
-             Total Pixels: {pixels1.Count()} |{pixels1.Channels} channels, {image1.Depth} bits per channel
-             
-             """);
-    }
-    
-    static float3[,] GetABMask(float3[,] A, float3[,] B, uint resX, uint resY) {
-        var temp = new float3[resX, resY]; 
-        Parallel.For(0, resX*resY, parallelOptions, (i) => {
-            uint x = (uint)(i % resX);
-            uint y = (uint)(i / resX);
-            var pixelA = A[x, y];
-            var pixelB = B[x, y];
-            float lumaA = (pixelA.X+pixelA.Y+pixelA.Z)/3;
-            float lumaB = (pixelB.X+pixelB.Y+pixelB.Z)/3;
-            float resultPixel = lumaB > lumaA ? MAX : MIN;
-            temp[x, y] = new(resultPixel, 0, 0);
-        });
         return temp;
     }
 
-    static float3[,] SelfMask(float3[,] A, uint resX, uint resY) {
+    static Vector3[,] SelfMask(Vector3[,] A) {
-        var temp = new float3[resX, resY]; 
+        kernels.SelfMask(A, out var temp);
-        Parallel.For(0, resX*resY, parallelOptions, (i) => {
-            uint x = (uint)(i % resX);
-            uint y = (uint)(i / resX);
-            var pixelA = A[x, y];
-            float lumaA = (pixelA.X+pixelA.Y+pixelA.Z)/3;
-            float resultPixel = lumaA > 0 ? MAX : MIN;
-            temp[x, y] = new(resultPixel, 0, 0);
-        });
         return temp;
     }
 
-    static bool EdgeKernel(float3[,] mask, int x, int y, uint width, uint height) {
-        //if we are already empty, return false
-        if (mask[x, y].X == 0) return false;
-        //if we are on the edge of the image, return false
-        if (x == 0 || y == 0 || x == width - 1 || y == height - 1) return false;
-        //check the 3x3 kernel
-        for (int xi = x - 1; xi <= x + 1; xi++) {
-            for (int yi = y - 1; yi <= y + 1; yi++) {
-                if (xi < 0 || xi >= width || yi < 0 || yi >= height)
-                    continue; //skip out of bounds pixels
-                if (mask[xi, yi].X == 0)
-                    return true; //if we find a black pixel, return true
-            }
-        }
-        //if we didn't find any black pixels, return false
-        return false;
-    }
-    
     static T Lerp<T>(T a, T b, float t)
         where T : INumber<T>, IMultiplyOperators<T, float, T>, IAdditionOperators<T, T, T>
-            => a * (1 - t) + b * t;
+        => a * (1 - t) + b * t;
 
     static T Remap<T>(T value, T min, T max, T newMin, T newMax)
         where T : INumber<T>, ISubtractionOperators<T, T, T>, IMultiplyOperators<T, T, T>, IAdditionOperators<T, T, T>
-            => (value - min) / (max - min) * (newMax - newMin) + newMin;
+        => (value - min) / (max - min) * (newMax - newMin) + newMin;
 }

SDFMapCreator/Records.cs

@@ -0,0 +1,14 @@
+using System.Numerics;
+
+namespace SDFMapCreator;
+
+public record Image(Vector3[,] Pixels, int Width, int Height);
+
+public record MaskData(Vector3[,] Mask, Image Image, List<Vector2> Edges) {
+    public Vector3[,] Mask { get; set; } = Mask;
+    public List<Vector2> Edges { get; set; } = Edges;
+}
+
+public record SDFData(Vector3[,] SDF);
+
+public record TransitionMaskData(Vector3[,] Mask, Image ImageA, Image ImageB);

SDFMapCreator/SDFMapCreator.csproj

@@ -8,50 +8,67 @@
     </PropertyGroup>
 
     <ItemGroup>
-      <PackageReference Include="Magick.NET-Q16-HDRI-OpenMP-x64" Version="14.5.0" />
+        <PackageReference Include="ILGPU" Version="1.5.2"/>
-      <PackageReference Include="System.Numerics.Vectors" Version="4.6.1" />
+        <PackageReference Include="ILGPU.Algorithms" Version="1.5.2"/>
+        <PackageReference Include="SixLabors.ImageSharp" Version="3.1.7"/>
+        <PackageReference Include="System.Numerics.Vectors" Version="4.6.1"/>
     </ItemGroup>
 
     <ItemGroup>
-      <None Update="1.png">
+        <None Update="1.png">
-        <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+            <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-      </None>
+        </None>
-      <None Update="2.png">
+        <None Update="2.png">
-        <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+            <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-      </None>
+        </None>
-      <None Update="TestPattern.png">
+        <None Update="TestPattern.png">
-        <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-      </None>
+        </None>
-      <None Update="images\01.png">
+        <None Update="images\01.png">
-        <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+            <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-      </None>
+        </None>
-      <None Update="images\02.png">
+        <None Update="images\02.png">
-        <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+            <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-      </None>
+        </None>
-      <None Update="images\03.png">
+        <None Update="images\03.png">
-        <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+            <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-      </None>
+        </None>
-      <None Update="images\04.png">
+        <None Update="images\04.png">
-        <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+            <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-      </None>
+        </None>
-      <None Update="images\05.png">
+        <None Update="images\05.png">
-        <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+            <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-      </None>
+        </None>
-      <None Update="images\06.png">
+        <None Update="images\06.png">
-        <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+            <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-      </None>
+        </None>
-      <None Update="images\07.png">
+        <None Update="images\07.png">
-        <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+            <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-      </None>
+        </None>
-      <None Update="images\08.png">
+        <None Update="images\08.png">
-        <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+            <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-      </None>
+        </None>
-      <None Update="spherecut.png">
+        <None Update="spherecut.png">
-        <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+            <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-      </None>
+        </None>
-      <None Update="spherefull.png">
+        <None Update="spherefull.png">
-        <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+            <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-      </None>
+        </None>
+        <None Update="spherehalf.png">
+            <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+        </None>
+        <None Update="spherehalf32.png">
+            <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+        </None>
+        <None Update="spherefull32.png">
+            <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+        </None>
+        <None Update="spherecut32.png">
+            <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+        </None>
+        <None Update="sphereempty.png">
+            <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+        </None>
     </ItemGroup>
 
 </Project>

SDFMapCreator/SdfKernels.Kernels.cs

@@ -0,0 +1,167 @@
+using System.Numerics;
+using ILGPU;
+using ILGPU.Runtime;
+
+namespace SDFMapCreator;
+
+public partial class SdfKernels {
+    
+    private const float LUMA_THRESHOLD = 0.0f;
+    static void SelfMaskKernel(Index2D index, ArrayView2D<Vector3, Stride2D.DenseX> input, ArrayView2D<Vector3, Stride2D.DenseX> mask) {
+        var x = index.X;
+        var y = index.Y;
+        var value = input[x, y];
+        var lumaA = value.X;
+        var r = lumaA > LUMA_THRESHOLD ? 1f : 0f;
+        mask[x, y] = new(r, 0f, 0f);
+    }
+
+    static void ABMaskKernel(Index2D index,
+        ArrayView2D<Vector3, Stride2D.DenseX> A,
+        ArrayView2D<Vector3, Stride2D.DenseX> B,
+        ArrayView2D<Vector3, Stride2D.DenseX> mask
+    ) {
+        var x = index.X;
+        var y = index.Y;
+        var valueA = A[x, y];
+        var valueB = B[x, y];
+        var lumaA = valueA.X;
+        var lumaB = valueB.X;
+        var r = lumaB - lumaA > LUMA_THRESHOLD ? 1f : 0f;
+        mask[x, y] = new(r, 0f, 0f);
+    }
+
+    static void EdgeKernel(Index2D index,
+        ArrayView2D<Vector3, Stride2D.DenseX> mask,
+        uint width, uint height
+    ) { // early exit if not on mask
+        if (mask[index].X == 0f) return;
+        var x = index.X;
+        var y = index.Y;
+        //if we are on the edge of the image, return false
+        if (x == 0 || y == 0 || x == width - 1 || y == height - 1) {
+            mask[index].Y = 1f; //set the edge flag
+            return;
+        }
+
+        //check the 3x3 kernel
+        for (var xi = x - 1; xi <= x + 1; xi++) {
+            for (var yi = y - 1; yi <= y + 1; yi++) {
+                if (xi < 0 || xi >= width || yi < 0 || yi >= height)
+                    continue; //skip out of bounds pixels
+                if (mask[xi, yi].X == 0f)
+                    mask[index].Y = 1f; //if we find a black pixel, return true
+            }
+        }
+    }
+
+    static void SdfKernel(Index2D index,
+        ArrayView2D<Vector3, Stride2D.DenseX> sdf,
+        ArrayView1D<Vector2, Stride1D.Dense> edges,
+        int width, int height
+    ) {
+        Vector2 pos = new((float)index.X / width, (float)index.Y / height);
+        var minDist = 2f;
+        var count = edges.IntExtent.Size;
+
+        for (var i = 0; i < count; i++) {
+            Vector2 edgeNrm = new(edges[i].X / width, edges[i].Y / height);
+            var dist = Vector2.Distance(pos, edgeNrm);
+            if (dist < minDist) minDist = dist;
+        }
+
+        if (minDist > 1f) minDist = 1f;
+
+        sdf[index] = new(minDist);
+    }
+
+    static void GradientKernel(Index2D index,
+        ArrayView2D<Vector3, Stride2D.DenseX> mask,
+        ArrayView2D<Vector3, Stride2D.DenseX> sdfa,
+        ArrayView2D<Vector3, Stride2D.DenseX> sdfb,
+        ArrayView2D<Vector3, Stride2D.DenseX> gradient
+    ) { //early exit if not on mask
+        if (mask[index].X == 0f) return;
+        var a = sdfa[index].X;
+        var b = sdfb[index].X;
+        gradient[index] = new(a / (a + b));
+    }
+
+    static Vector3 SampleBilinear(ArrayView2D<Vector3, Stride2D.DenseX> image, float x, float y) {
+        int width = image.IntExtent.X;
+        int height = image.IntExtent.Y;
+        
+        var x0 = (int)x;
+        var y0 = (int)y;
+        var x1 = x0 + 1;
+        var y1 = y0 + 1;
+
+        if (x0 < 0 || x1 >= width || y0 < 0 || y1 >= height) return Vector3.Zero;
+
+        var a = new Vector2(x - x0, y - y0);
+        var b = new Vector2(1f - a.X, 1f - a.Y);
+        
+        return Vector3.Lerp(
+            Vector3.Lerp(image[x0, y0], image[x1, y0], a.X),
+            Vector3.Lerp(image[x0, y1], image[x1, y1], a.X),
+            a.Y
+        );
+    }
+    
+    static void DirectionalBlurKernel(Index2D index,
+        ArrayView2D<Vector3, Stride2D.DenseX> image,
+        ArrayView2D<Vector3, Stride2D.DenseX> mask,
+        ArrayView2D<Vector3, Stride2D.DenseX> output,
+        float radius, float step, float sigma,
+        int width, int height
+    ) {
+        var x = index.X;
+        var y = index.Y;
+        var value = image[x, y];
+        var maskValue = mask[x, y];
+        if (maskValue.X == 0f) {
+            output[x, y] = value;
+            return;
+        }
+
+        var gradient = Vector2.Zero;
+        
+        // calculate the gradient
+        for (int i = -1; i <= 1; i++) {
+            if (x + i < 0 || x + i >= width || y + i < 0 || y + i >= height) continue;
+            gradient.X += i * image[x + i, y].X;
+            gradient.Y += i * image[x, y + i].X;
+        }
+        
+        /*
+        output[x, y] = new Vector3(float.Abs((gradient.X * 0.5f) + 0.5f),
+            float.Abs((gradient.Y * 0.5f) + 0.5f), 0.5f);
+        return;
+        */
+
+        if (gradient == Vector2.Zero) {
+            output[x, y] = value;
+            return;
+        }
+
+        gradient = Vector2.Normalize(gradient);
+        float sum = 0;
+
+        // now we follow the direction line and sample the image for length;
+        for (var l = -radius; l <= radius; l += step) {
+            var xOffset = (gradient.X * l);
+            var yOffset = (gradient.Y * l);
+            var xSample = x + xOffset;
+            var ySample = y + yOffset;
+
+            if (xSample < 0 || xSample >= width || ySample < 0 || ySample >= height) continue;
+
+            var sampleValue = SampleBilinear(image, xSample, ySample);
+            var weight = MathF.Exp(-(l * l) / (2f * sigma * sigma));
+            output[x, y] += sampleValue * weight;
+            sum += weight;
+        }
+
+        output[x, y] = output[x, y] / sum;
+    }
+}

SDFMapCreator/SdfKernels.cs

@@ -0,0 +1,200 @@
+using System;
+using System.Numerics;
+using ILGPU;
+using ILGPU.Runtime;
+using ILGPU.Runtime.CPU;
+using ILGPU.Runtime.Cuda;
+using ILGPU.Runtime.OpenCL;
+using ILGPU.Algorithms;
+
+namespace SDFMapCreator;
+
+public partial class SdfKernels {
+    Context gpuContext;
+
+    public SdfKernels() {
+        // Initialize the GPU context
+        gpuContext = Context.Create(builder => builder
+            .OpenCL()
+            .Cuda()
+            .CPU()
+            .Math(MathMode.Fast32BitOnly)
+            .EnableAlgorithms()
+        );
+
+        Console.WriteLine("Reading available accelerators (CUDA only)...");
+        foreach (var device in gpuContext.GetCudaDevices()) {
+            using var accelerator = device.CreateAccelerator(gpuContext);
+            Console.WriteLine($"{GetInfoString(accelerator)}");
+        }
+
+        Console.WriteLine("Reading available accelerators (OpenCL only)...");
+        foreach (var device in gpuContext.GetCLDevices()) {
+            using var accelerator = device.CreateAccelerator(gpuContext);
+            Console.WriteLine($"{GetInfoString(accelerator)}");
+        }
+
+        Console.WriteLine("Reading available accelerators (CPU only)...");
+        foreach (var device in gpuContext.GetCPUDevices()) {
+            using var accelerator = device.CreateAccelerator(gpuContext);
+            Console.WriteLine($"{GetInfoString(accelerator)}");
+        }
+    }
+
+    public void SelfMask(Vector3[,] input, out Vector3[,] mask) {
+        var dev = gpuContext.GetPreferredDevice(false);
+        var width = input.GetLength(0);
+        var height = input.GetLength(1);
+        mask = new Vector3[width, height];
+        using var accelerator = dev.CreateAccelerator(gpuContext);
+
+        using var buffer = accelerator.Allocate2DDenseX<Vector3>(new(width, height));
+        buffer.CopyFromCPU(input);
+
+        using var maskBuffer = accelerator.Allocate2DDenseX<Vector3>(new(width, height));
+
+        var selfMaskKernel = accelerator.LoadAutoGroupedStreamKernel<Index2D, ArrayView2D<Vector3, Stride2D.DenseX>,
+            ArrayView2D<Vector3, Stride2D.DenseX>>(SelfMaskKernel);
+
+        selfMaskKernel(new(width, height), buffer.View, maskBuffer.View);
+
+        accelerator.Synchronize();
+
+        mask = maskBuffer.GetAsArray2D();
+    }
+
+    public void ABMask(Vector3[,] A, Vector3[,] B, out Vector3[,] mask) {
+        var dev = gpuContext.GetPreferredDevice(false);
+        var width = A.GetLength(0);
+        var height = A.GetLength(1);
+        mask = new Vector3[width, height];
+        using var accelerator = dev.CreateAccelerator(gpuContext);
+
+        using var bufferA = accelerator.Allocate2DDenseX<Vector3>(new(width, height));
+        bufferA.CopyFromCPU(A);
+
+        using var bufferB = accelerator.Allocate2DDenseX<Vector3>(new(width, height));
+        bufferB.CopyFromCPU(B);
+
+        using var maskBuffer = accelerator.Allocate2DDenseX<Vector3>(new(width, height));
+
+        var abMaskKernel = accelerator.LoadAutoGroupedStreamKernel<Index2D,
+            ArrayView2D<Vector3, Stride2D.DenseX>,
+            ArrayView2D<Vector3, Stride2D.DenseX>,
+            ArrayView2D<Vector3, Stride2D.DenseX>>(ABMaskKernel);
+
+        abMaskKernel(new(width, height), bufferA.View, bufferB.View, maskBuffer.View);
+
+        accelerator.Synchronize();
+
+        mask = maskBuffer.GetAsArray2D();
+    }
+
+    public void EdgeDetect(Vector3[,] mask, out Vector3[,] edge) {
+        var dev = gpuContext.GetPreferredDevice(false);
+        var width = mask.GetLength(0);
+        var height = mask.GetLength(1);
+        edge = new Vector3[width, height];
+        using var accelerator = dev.CreateAccelerator(gpuContext);
+
+        using var buffer = accelerator.Allocate2DDenseX<Vector3>(new(width, height));
+        buffer.CopyFromCPU(mask);
+
+        var edgeKernel = accelerator.LoadAutoGroupedStreamKernel<Index2D,
+            ArrayView2D<Vector3, Stride2D.DenseX>, uint, uint>(EdgeKernel);
+
+        edgeKernel(new(width, height), buffer.View, (uint)width, (uint)height);
+
+        accelerator.Synchronize();
+
+        edge = buffer.GetAsArray2D();
+    }
+
+    public void Sdf(Vector2[] edges, int width, int height, out Vector3[,] sdf) {
+        var dev = gpuContext.GetPreferredDevice(false);
+        using var accelerator = dev.CreateAccelerator(gpuContext);
+
+        using var buffer = accelerator.Allocate2DDenseX<Vector3>(new(width, height));
+
+        using var edgeBuffer = accelerator.Allocate1D<Vector2>(edges.Length);
+        edgeBuffer.CopyFromCPU(edges);
+
+        var sdfKernel = accelerator.LoadAutoGroupedStreamKernel<Index2D,
+            ArrayView2D<Vector3, Stride2D.DenseX>,
+            ArrayView1D<Vector2, Stride1D.Dense>,
+            int, int>(SdfKernel);
+
+        sdfKernel(new(width, height), buffer.View, edgeBuffer.View, width, height);
+
+        accelerator.Synchronize();
+
+        sdf = buffer.GetAsArray2D();
+    }
+
+    public void Gradient(Vector3[,] mask, Vector3[,] sdfa, Vector3[,] sdfb, out Vector3[,] gradient) {
+        var dev = gpuContext.GetPreferredDevice(false);
+        var width = mask.GetLength(0);
+        var height = mask.GetLength(1);
+        gradient = new Vector3[width, height];
+        using var accelerator = dev.CreateAccelerator(gpuContext);
+
+        using var bufferMask = accelerator.Allocate2DDenseX<Vector3>(new(width, height));
+        bufferMask.CopyFromCPU(mask);
+
+        using var bufferSdfa = accelerator.Allocate2DDenseX<Vector3>(new(width, height));
+        bufferSdfa.CopyFromCPU(sdfa);
+
+        using var bufferSdfb = accelerator.Allocate2DDenseX<Vector3>(new(width, height));
+        bufferSdfb.CopyFromCPU(sdfb);
+
+        using var bufferGradient = accelerator.Allocate2DDenseX<Vector3>(new(width, height));
+
+        var gradientKernel = accelerator.LoadAutoGroupedStreamKernel<Index2D,
+            ArrayView2D<Vector3, Stride2D.DenseX>,
+            ArrayView2D<Vector3, Stride2D.DenseX>,
+            ArrayView2D<Vector3, Stride2D.DenseX>,
+            ArrayView2D<Vector3, Stride2D.DenseX>>(GradientKernel);
+
+        gradientKernel(new(width, height), bufferMask.View, bufferSdfa.View, bufferSdfb.View, bufferGradient.View);
+
+        accelerator.Synchronize();
+
+        gradient = bufferGradient.GetAsArray2D();
+    }
+
+    public void DirectionalBlur(Vector3[,] image, Vector3[,] mask, out Vector3[,] output, float radius = 3f,
+        float step = .5f, float sigma = 1f) {
+        var dev = gpuContext.GetPreferredDevice(false);
+        var width = image.GetLength(0);
+        var height = image.GetLength(1);
+        output = new Vector3[width, height];
+        using var accelerator = dev.CreateAccelerator(gpuContext);
+
+        using var imageBuffer = accelerator.Allocate2DDenseX<Vector3>(new(width, height));
+        imageBuffer.CopyFromCPU(image);
+
+        using var maskBuffer = accelerator.Allocate2DDenseX<Vector3>(new(width, height));
+        maskBuffer.CopyFromCPU(mask);
+
+        using var outputBuffer = accelerator.Allocate2DDenseX<Vector3>(new(width, height));
+
+        var blurKernel = accelerator.LoadAutoGroupedStreamKernel<Index2D,
+            ArrayView2D<Vector3, Stride2D.DenseX>,
+            ArrayView2D<Vector3, Stride2D.DenseX>,
+            ArrayView2D<Vector3, Stride2D.DenseX>,
+            float, float, float, int, int>(DirectionalBlurKernel);
+
+        blurKernel(new(width, height), imageBuffer.View, maskBuffer.View, outputBuffer.View,
+            radius, step, sigma, width, height);
+
+        accelerator.Synchronize();
+
+        output = outputBuffer.GetAsArray2D();
+    }
+
+    static string GetInfoString(Accelerator a) {
+        var infoString = new StringWriter();
+        a.PrintInformation(infoString);
+        return infoString.ToString();
+    }
+}