~ Changed Pipelines

(Default2DPipeline: Has Lights, Post-ProcessingEffects, etc.)
(Basic2DPipeline: Simple Color and Texture stuff, thats it)

SMCode/SM.Base/Drawing/MaterialShader.cs

@@ -42,15 +42,14 @@ namespace SM.Base.Drawing
             CleanUp();
 
             GL.UseProgram(0);
+
+            context.ShaderArguments.Clear();
         }
 
         /// <summary>
         ///     Draws the context.
         /// </summary>
         /// <param name="context"></param>
-        protected virtual void DrawProcess(DrawContext context)
+        protected abstract void DrawProcess(DrawContext context);
-        {
-
-        }
     }
 }

SMCode/SM.Base/Objects/Mesh.cs

@@ -12,7 +12,7 @@ namespace SM.Base.Objects
         /// <summary>
         ///     While initializing, it will add the <see cref="Color" /> to the data index.
         /// </summary>
-        protected Mesh()
+        public Mesh()
         {
             Attributes.Add(3, "color", Color);
         }

SMCode/SM.Base/PostProcess/PostProcessEffect.cs

@@ -24,7 +24,7 @@ namespace SM.Base.PostProcess
             Init();
         }
 
-        public virtual void Draw(Framebuffer main)
+        public virtual void Draw(Framebuffer main, Framebuffer target)
         {
 
         }

SMCode/SM.Base/PostProcess/PostProcessShader.cs

@@ -53,12 +53,11 @@ namespace SM.Base.PostProcess
 
             Uniforms["MVP"].SetMatrix4(PostProcessEffect.Mvp);
             Uniforms["ModelMatrix"].SetMatrix4(PostProcessEffect.Model);
-            Uniforms["renderedTexture"].SetTexture(color, 0);
+            Uniforms["renderedTexture"].SetTexture(color);
 
             GL.DrawArrays(PrimitiveType.Quads, 0, 4);
 
-            GL.BindTexture(TextureTarget.Texture2D, 0);
+            CleanUp();
-            GL.BindVertexArray(0);
             GL.UseProgram(0);
         }
 
@@ -74,14 +73,13 @@ namespace SM.Base.PostProcess
 
             Uniforms["MVP"].SetMatrix4(PostProcessEffect.Mvp);
             Uniforms["ModelMatrix"].SetMatrix4(PostProcessEffect.Model);
-            Uniforms["renderedTexture"].SetTexture(color, 0);
+            Uniforms["renderedTexture"].SetTexture(color);
 
             setUniformAction(Uniforms);
 
             GL.DrawArrays(PrimitiveType.Quads, 0, 4);
 
-            GL.BindTexture(TextureTarget.Texture2D, 0);
+            CleanUp();
-            GL.BindVertexArray(0);
             GL.UseProgram(0);
         }
     }

SMCode/SM.Base/Window/Contexts/DrawContext.cs

@@ -1,6 +1,7 @@
 #region usings
 
 using System.Collections.Generic;
+using System.Dynamic;
 using OpenTK;
 using SM.Base.Drawing;
 using SM.Base.Scene;
@@ -71,6 +72,11 @@ namespace SM.Base.Contexts
         /// </summary>
         public object LastPassthough;
 
+        /// <summary>
+        /// Arguments for shaders
+        /// </summary>
+        public IDictionary<string, object> ShaderArguments;
+
         /// <summary>
         ///     Returns the appropriate shader.
         ///     <para>

SMCode/SM.Base/Window/GenericWindow.cs

@@ -268,6 +268,7 @@ namespace SM.Base
                     new Instance
                         {ModelMatrix = Matrix4.Identity, TexturePosition = Vector2.Zero, TextureScale = Vector2.One}
                 },
+                ShaderArguments = new Dictionary<string, object>(),
                 Mesh = Plate.Object,
                 ForceViewport = ForceViewportCamera,
                 WorldScale = _worldScale,

SMCode/SM.Base/Window/RenderPipeline.cs

@@ -88,9 +88,9 @@ namespace SM.Base
         {
         }
 
-        protected Framebuffer CreateWindowFramebuffer()
+        public static Framebuffer CreateWindowFramebuffer()
         {
-            Framebuffer framebuffer = new Framebuffer(window: _window);
+            Framebuffer framebuffer = new Framebuffer(window: SMRenderer.CurrentWindow);
             framebuffer.Append("color", 0);
             framebuffer.Compile();
             return framebuffer;

SMCode/SM.OGL/Shaders/Uniform.cs

@@ -458,7 +458,7 @@ namespace SM.OGL.Shaders
         /// <param name="texture"></param>
         public void SetTexture(TextureBase texture)
         {
-            if (Parent != null) SetTexture(texture, Parent.NextTexture++);
+            if (Parent != null) SetTexture(texture, Parent.NextTexture);
         }
 
         /// <summary>
@@ -468,6 +468,7 @@ namespace SM.OGL.Shaders
         /// <param name="texturePos"></param>
         public void SetTexture(TextureBase texture, int texturePos)
         {
+            Parent.NextTexture = texturePos + 1;
             GL.ActiveTexture(TextureUnit.Texture0 + texturePos);
             GL.BindTexture(TextureTarget.Texture2D, texture);
             SetUniform1(texturePos);

SMCode/SM.OGL/Shaders/UniformCollection.cs

@@ -10,7 +10,7 @@ namespace SM.OGL.Shaders
 {
     public class UniformCollection : Dictionary<string, IUniform>
     {
-        internal int NextTexture = 0;
+        public int NextTexture = 0;
         internal string KeyString = "";
         public GenericShader ParentShader { get; internal set; }
 

SMCode/SM2D/Drawing/DrawObject2D.cs

@@ -16,6 +16,8 @@ namespace SM2D.Drawing
     {
         public int ZIndex { get; set; }
 
+        public bool ShadowCaster = false;
+
         public Texture Texture
         {
             get => (Texture) _material.Texture;
@@ -31,6 +33,7 @@ namespace SM2D.Drawing
         protected override void DrawContext(ref DrawContext context)
         {
             base.DrawContext(ref context);
+            context.ShaderArguments["occluder"] = ShadowCaster;
             context.Shader.Draw(context);
         }
 
@@ -64,5 +67,6 @@ namespace SM2D.Drawing
             _mesh = pol;
             return pol;
         }
+        
     }
 }

SMCode/SM2D/GLWindow2D.cs

@@ -38,7 +38,7 @@ namespace SM2D
             base.OnLoaded();
             SMRenderer.DefaultMaterialShader = Default2DShader.MaterialShader;
 
-            SetRenderPipeline(new Basic2DPipeline());
+            SetRenderPipeline(Default2DPipeline.Pipeline);
         }
 
         protected override void OnRenderFrame(FrameEventArgs e)

SMCode/SM2D/Light/LightObjects/LightObject.cs

@@ -1,5 +1,7 @@
 using System.Collections.Generic;
+using OpenTK;
 using OpenTK.Graphics;
+using SM.Base;
 using SM.Base.Types;
 using SM.OGL.Shaders;
 
@@ -7,6 +9,7 @@ namespace SM2D.Light
 {
     public abstract class LightObject
     {
+        private Vector2 _posNorm => Vector2.Divide(Position, (SMRenderer.CurrentWindow as GLWindow2D).WorldScale);
         internal abstract int Type { get; }
 
         public CVector2 Position = new CVector2(0);

SMCode/SM2D/Light/LightObjects/PointLight.cs

@@ -8,12 +8,16 @@ namespace SM2D.Light
         internal override int Type { get; } = 0;
 
         public float Power = 5;
+        public float InnerCircle = 1;
+        public float OuterCircle = 1;
 
         internal override void SetUniforms(Dictionary<string, Uniform> uniforms)
         {
             base.SetUniforms(uniforms);
 
             uniforms["Power"].SetUniform1(Power);
+            uniforms["Inner"].SetUniform1(1 / InnerCircle);
+            uniforms["Outer"].SetUniform1(1 / OuterCircle);
         }
     }
 }

SMCode/SM2D/Light/LightPostEffect.cs

@@ -1,9 +1,11 @@
 using System.Reflection;
+using SM.Base;
 using SM.Base.PostProcess;
 using SM.Base.Scene;
 using SM.OGL.Framebuffer;
 using SM.OGL.Shaders;
 using SM.Utility;
+using SM2D.Scene;
 
 namespace SM2D.Light
 {
@@ -12,14 +14,25 @@ namespace SM2D.Light
         private PostProcessShader _shader = new PostProcessShader(AssemblyUtility.ReadAssemblyFile("SM2D.Light.light.frag"));
         private LightSceneExtension sceneExtension;
 
-        public override void Draw(Framebuffer main)
+        public override void Init(Framebuffer main)
         {
-            base.Draw(main);
+            base.Init(main);
-            
+            main.Append("occluder", 1);
+        }
+
+        public override void Draw(Framebuffer main, Framebuffer target)
+        {
+            base.Draw(main, target);
+
             _shader.Draw(main.ColorAttachments["color"], collection =>
             {
+                collection["FragSize"].SetUniform2((SMRenderer.CurrentWindow as GLWindow2D).WorldScale);
+
                 collection["Ambient"].SetUniform4(sceneExtension.Ambient);
                 collection["LightCount"].SetUniform1(sceneExtension.Lights.Count);
+                collection["OccluderMap"].SetTexture(main.ColorAttachments["occluder"]);
+                collection["ShadowSensitivty"].SetUniform1(1f);
+                
                 UniformArray array = collection.GetArray("Lights");
 
                 for (int i = 0; i < sceneExtension.Lights.Count; i++)

SMCode/SM2D/Light/light.frag

@@ -8,15 +8,22 @@ struct Light {
 
 	// pointStuff;
 	float Power;
+	float Inner;
+	float Outer;
 };
 
 in vec2 vTexture;
 in vec2 FragPos;
 
+uniform vec2 FragSize;
+
 uniform vec4 Ambient = vec4(1);
 uniform Light[24] Lights;
 uniform int LightCount;
 
+uniform float ShadowSensitivty;
+uniform sampler2D OccluderMap;
+
 layout(location = 0) out vec4 color;
 
 vec4 GetRenderColor();
@@ -24,10 +31,27 @@ vec4 GetRenderColor();
 vec3 calcPointLight(Light light) {
 	vec2 diff = light.Position - FragPos;
 
-	float dif = light.Power / length(diff);
+	float dif = 20 / length(diff);
-	float intensity = 4 * PI * dif * (dif * dif);
+	float intensity = light.Power * (dif) * (dif * dif);
 
-	return vec3(intensity);
+	return vec3(light.Color * intensity);
+}
+
+float occluded(Light light) {
+	float occluder = 1 - length(texture(OccluderMap, vTexture).rgb);
+
+	if (occluder != 0) {
+		vec2 diff = light.Position - FragPos;
+		vec2 dir = normalize(diff);
+
+		float steps = length(diff) / ShadowSensitivty;
+
+		vec2 curPos = FragPos;
+		for(int i = 0; i < steps; i++) {
+			curPos += dir * i * ShadowSensitivty;
+		}
+	}
+	return occluder;
 }
 
 vec3 calcLight() {
@@ -36,11 +60,13 @@ vec3 calcLight() {
 	for(int i = 0; i < LightCount; i++) {
 		Light light = Lights[i];
 
+		vec3 lightColor;
 		switch(light.Type) {
 			case 0:
-				addedLight += calcPointLight(light);
+				lightColor += calcPointLight(light);
 				break;
 		}
+		addedLight += lightColor * occluded(light);
 	}
 
 	return addedLight;
@@ -51,5 +77,5 @@ void main() {
 
 	color = render * Ambient;
 
-	color += vec4(calcLight() * render.xyz, 1);
+	color += vec4(calcLight(), 1);
 }

SMCode/SM2D/Pipelines/Basic2DPipeline.cs

@@ -1,52 +1,30 @@
-#region usings
+using System;
-
 using OpenTK.Graphics.OpenGL4;
 using SM.Base;
 using SM.Base.Contexts;
-using SM.Base.Scene;
+using SM.Base.Drawing;
 using SM.OGL.Framebuffer;
-using SM2D.Light;
 using SM2D.Shader;
 
-#endregion
-
 namespace SM2D.Pipelines
 {
     public class Basic2DPipeline : RenderPipeline<Scene.Scene>
     {
-        private Framebuffer _tempWindow;
+        public static Basic2DPipeline Pipeline = new Basic2DPipeline();
-        private Light.LightPostEffect _lightEffect;
 
-        protected override void Initialization(GenericWindow window)
+        protected override MaterialShader _defaultShader { get; } = Basic2DShader.Shader;
+
+        private Basic2DPipeline()
         {
-            _tempWindow = CreateWindowFramebuffer();
+            Console.WriteLine();
-            _lightEffect = new LightPostEffect();
         }
 
         protected override void Render(ref DrawContext context, Scene.Scene scene)
         {
             base.Render(ref context, scene);
 
-            _tempWindow.Activate(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
+            Framebuffer.Screen.Activate(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
-
+            if (scene != null) scene.Draw(context);
-            if (scene != null)
-            {
-                scene.DrawBackground(context);
-
-                scene.DrawMainObjects(context);
-                
-                Framebuffer.Screen.Activate(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
-                _lightEffect.Draw(_tempWindow);
-
-                scene.DrawHUD(context);
-                scene.DrawDebug(context);
-            }
-        }
-
-        protected override void SceneChanged(Scene.Scene scene)
-        {
-            base.SceneChanged(scene);
-            _lightEffect.SceneChanged(scene);
         }
     }
 }

SMCode/SM2D/Pipelines/Default2DPipeline.cs

@@ -0,0 +1,65 @@
+#region usings
+
+using System.Collections.Generic;
+using OpenTK.Graphics.OpenGL4;
+using SM.Base;
+using SM.Base.Contexts;
+using SM.Base.Scene;
+using SM.OGL.Framebuffer;
+using SM2D.Light;
+using SM2D.Shader;
+
+#endregion
+
+namespace SM2D.Pipelines
+{
+    public class Default2DPipeline : RenderPipeline<Scene.Scene>
+    {
+        public static Default2DPipeline Pipeline = new Default2DPipeline();
+
+        private Framebuffer _tempWindow;
+        private Light.LightPostEffect _lightEffect;
+
+        protected override List<Framebuffer> _framebuffers { get; } = new List<Framebuffer>();
+
+        private Default2DPipeline()
+        {
+
+        }
+
+        protected override void Initialization(GenericWindow window)
+        {
+            _tempWindow = CreateWindowFramebuffer();
+            _lightEffect = new LightPostEffect();
+
+            _framebuffers.Add(_tempWindow);
+
+            _lightEffect.Init(_tempWindow);
+        }
+
+        protected override void Render(ref DrawContext context, Scene.Scene scene)
+        {
+            base.Render(ref context, scene);
+
+            if (scene != null)
+            {
+                _tempWindow.Activate(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
+                scene.DrawBackground(context);
+
+                scene.DrawMainObjects(context);
+                
+                Framebuffer.Screen.Activate();
+                _lightEffect.Draw(_tempWindow, Framebuffer.Screen);
+
+                scene.DrawHUD(context);
+                scene.DrawDebug(context);
+            }
+        }
+
+        protected override void SceneChanged(Scene.Scene scene)
+        {
+            base.SceneChanged(scene);
+            _lightEffect.SceneChanged(scene);
+        }
+    }
+}

SMCode/SM2D/SM2D.csproj

@@ -53,11 +53,13 @@
     <Compile Include="Object\PolygonVertex.cs" />
     <Compile Include="Pipelines\Adv2DPipeline.cs" />
     <Compile Include="Pipelines\Basic2DPipeline.cs" />
+    <Compile Include="Pipelines\Default2DPipeline.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Scene\Camera.cs" />
     <Compile Include="Scene\I2DShowItem.cs" />
     <Compile Include="Scene\ItemCollection.cs" />
     <Compile Include="Scene\Scene.cs" />
+    <Compile Include="Shader\Basic2DShader.cs" />
     <Compile Include="Shader\Default2DShader.cs" />
     <Compile Include="Types\Transformation.cs" />
   </ItemGroup>
@@ -82,6 +84,8 @@
   <ItemGroup>
     <EmbeddedResource Include="Light\light.frag" />
   </ItemGroup>
-  <ItemGroup />
+  <ItemGroup>
+    <EmbeddedResource Include="Shader\ShaderFiles\basic.glsl" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
 </Project>

SMCode/SM2D/Shader/Basic2DShader.cs

@@ -0,0 +1,40 @@
+using SM.Base.Contexts;
+using SM.Base.Drawing;
+using SM.OGL.Shaders;
+using SM.Utility;
+
+namespace SM2D.Shader
+{
+    public class Basic2DShader : MaterialShader
+    {
+
+        public static Basic2DShader Shader = new Basic2DShader();
+        private Basic2DShader() : base(AssemblyUtility.ReadAssemblyFile("SM2D.Shader.ShaderFiles.basic.glsl"))
+        {
+        }
+
+        protected override void DrawProcess(DrawContext context)
+        {
+            // Vertex Uniforms
+            Uniforms["MVP"].SetMatrix4(context.ModelMaster * context.View * context.World);
+            Uniforms["HasVColor"]
+                .SetUniform1(context.Mesh.Attributes["color"] != null);
+
+            UniformArray instances = Uniforms.GetArray("Instances");
+            for (int i = 0; i < context.Instances.Count; i++)
+            {
+                var shaderInstance = instances[i];
+                var instance = context.Instances[i];
+                shaderInstance["ModelMatrix"].SetMatrix4(instance.ModelMatrix);
+                shaderInstance["TextureOffset"].SetUniform2(instance.TexturePosition);
+                shaderInstance["TextureScale"].SetUniform2(instance.TextureScale);
+            }
+
+            // Fragment Uniforms
+            Uniforms["Tint"].SetUniform4(context.Material.Tint);
+            Uniforms["Texture"].SetTexture(context.Material.Texture, Uniforms["UseTexture"]);
+
+            DrawObject(context.Mesh, context.Instances.Count);
+        }
+    }
+}

SMCode/SM2D/Shader/Default2DShader.cs

@@ -27,6 +27,7 @@ namespace SM2D.Shader
             Uniforms["MVP"].SetMatrix4(context.ModelMaster * context.View * context.World);
             Uniforms["HasVColor"]
                 .SetUniform1(context.Mesh.Attributes["color"] != null);
+            Uniforms["occlude"].SetUniform1(context.ShaderArguments.ContainsKey("occluder"));
 
             UniformArray instances = Uniforms.GetArray("Instances");
             for (int i = 0; i < context.Instances.Count; i++)

SMCode/SM2D/Shader/ShaderFiles/basic.glsl

@@ -0,0 +1,28 @@
+#version 330
+//# region vertex
+
+//# import SM_base_vertex_basic
+void ApplyTexModifier();
+void CheckVertexColor();
+void ApplyModelTransformation();
+
+void vmain() {
+	ApplyTexModifier();
+	CheckVertexColor();
+	ApplyModelTransformation();
+}
+
+//# region fragment
+in vec2 vTexture;
+in vec4 vColor;
+
+uniform vec4 Tint;
+uniform bool UseTexture;
+uniform sampler2D Texture;
+
+layout(location = 0) out vec4 color;
+
+void fmain() {
+    color = vColor * Tint;
+    if (UseTexture) color *= texture(Texture, vTexture);
+}

SMCode/SM2D/Shader/ShaderFiles/default.glsl

@@ -17,13 +17,18 @@ void vmain() {
 in vec2 vTexture;
 in vec4 vColor;
 
+uniform bool occlude;
+
 uniform vec4 Tint;
 uniform bool UseTexture;
 uniform sampler2D Texture;
 
 layout(location = 0) out vec4 color;
+layout(location = 1) out vec4 occluder;
 
 void fmain() {
     color = vColor * Tint;
     if (UseTexture) color *= texture(Texture, vTexture);
+
+	occluder = vec4(occlude,0,0,1);
 }

SM_TEST/Program.cs

@@ -16,6 +16,7 @@ using SM2D;
 using SM2D.Drawing;
 using SM2D.Light;
 using SM2D.Object;
+using SM2D.Pipelines;
 using SM2D.Scene;
 using Font = SM.Base.Drawing.Text.Font;
 using Vector2 = OpenTK.Vector2;
@@ -38,6 +39,7 @@ namespace SM_TEST
 
             window = new GLWindow2D {Scaling = new Vector2(0, 1000)};
             //window.GrabCursor();
+            window.SetRenderPipeline(Basic2DPipeline.Pipeline);
             window.SetScene(scene = new Scene());
             window.Load += WindowOnLoad;
             window.RenderFrame += WindowOnUpdateFrame;
@@ -59,16 +61,22 @@ namespace SM_TEST
             scene.ShowAxisHelper = true;
 
             DrawObject2D kasten = new DrawObject2D();
+            kasten.ShadowCaster = true;
             kasten.Texture = new Texture(new Bitmap("herosword.png"));
             kasten.Transform.ApplyTextureSize(kasten.Texture, 500);
             scene.Objects.Add(kasten);
 
+            //scene.Background.Color = Color4.White;
+
             DrawText text = new DrawText(font, "Text");
             text.Transform.Position.Set(0, 500);
             scene.Objects.Add(text);
 
-            light = new PointLight();
+            light = new PointLight
-            light.Color = new Color4(0, 1,0,1);
+            {
+                Color = new Color4(0, 1, 1, 1), 
+                Power = 100
+            };
             scene.LightInformations.Lights.Add(light);
 
             scene.LightInformations.Ambient = Color4.White;