17.09.2020

+ Generic Scene
+ Generic Camera
+ Generic Window
+ Contexts for drawing and updateing

+ very basic 2D-implermention

SMCode/SM.Base/GenericWindow.cs

@@ -1,47 +0,0 @@
-using System;
-using System.IO;
-using OpenTK;
-using OpenTK.Graphics;
-using OpenTK.Graphics.OpenGL4;
-using SM.OGL.Shaders;
-
-namespace SM.Base
-{
-    public class GenericWindow : GameWindow
-    {
-        private TestShader shader;
-        private Matrix4 _viewMatrix;
-
-        public GenericWindow() : base(1280, 720, GraphicsMode.Default, "Testing", GameWindowFlags.Default, DisplayDevice.Default, 0, 0, GraphicsContextFlags.Default, null, true)
-        {
-
-        }
-
-        protected override void OnLoad(EventArgs e)
-        {
-            base.OnLoad(e);
-            shader = new TestShader(new ShaderFileCollection(File.ReadAllText("test/test.vert"), File.ReadAllText("test/test.frag")));
-            shader.Compile();
-        }
-
-        protected override void OnRenderFrame(FrameEventArgs e)
-        {
-            base.OnRenderFrame(e);
-
-            GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
-
-            shader.Draw(_viewMatrix);
-
-            SwapBuffers();
-        }
-
-        protected override void OnResize(EventArgs e)
-        {
-            base.OnResize(e);
-
-            GL.Viewport(ClientRectangle);
-            _viewMatrix = Matrix4.LookAt(Vector3.UnitZ, Vector3.Zero, Vector3.UnitY) *
-                          Matrix4.CreatePerspectiveFieldOfView(MathHelper.DegreesToRadians(90), Width / Height, 0.1f, 100);
-        }
-    }
-}

SMCode/SM.Base/SM.Base.csproj

@@ -45,14 +45,23 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
-    <Compile Include="GenericWindow.cs" />
+    <Compile Include="Scene\IShowCollection.cs" />
+    <Compile Include="Scene\IShowItem.cs" />
+    <Compile Include="Shader\InstanceShader.cs" />
+    <Compile Include="Shader\Shaders.cs" />
+    <Compile Include="Window\Contexts\DrawContext.cs" />
+    <Compile Include="Window\Contexts\UpdateContext.cs" />
+    <Compile Include="Window\GenericWindow.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Scene\GenericCamera.cs" />
+    <Compile Include="Scene\GenericScene.cs" />
     <Compile Include="StaticObjects\Plate.cs" />
-    <Compile Include="TestShader.cs" />
   </ItemGroup>
   <ItemGroup>
     <None Include="OpenTK.dll.config" />
     <None Include="packages.config" />
+    <EmbeddedResource Include="Shader\Files\default.frag" />
+    <EmbeddedResource Include="Shader\Files\default.vert" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\SM.OGL\SM.OGL.csproj">
@@ -60,6 +69,8 @@
       <Name>SM.OGL</Name>
     </ProjectReference>
   </ItemGroup>
-  <ItemGroup />
+  <ItemGroup>
+    <Folder Include="Types\" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
 </Project>

SMCode/SM.Base/Scene/GenericCamera.cs

@@ -0,0 +1,26 @@
+using OpenTK;
+
+namespace SM.Base.Scene
+{
+    public abstract class GenericCamera
+    {
+        public static Matrix4 OrthographicWorld { get; protected set; }
+        public static Matrix4 PerspectiveWorld { get; protected set; }
+        public static Vector3 UpVector { get; set; } = Vector3.UnitY;
+        
+        public Matrix4 ViewMatrix { get; protected set; }
+
+        public Matrix4 World => Orthographic ? OrthographicWorld : PerspectiveWorld;
+
+        internal Matrix4 CalculateViewMatrix()
+        {
+            ViewMatrix = ViewCalculation();
+            return ViewMatrix;
+        }
+
+        public abstract Matrix4 ViewCalculation();
+
+        public abstract bool Orthographic { get; }
+        public abstract void RecalculateWorld(float width, float height);
+    }
+}

SMCode/SM.Base/Scene/GenericScene.cs

@@ -0,0 +1,23 @@
+using System.Collections.Generic;
+using SM.Base.Contexts;
+
+namespace SM.Base.Scene
+{
+    public abstract class GenericScene<TCamera> : IShowCollection
+        where TCamera : GenericCamera
+    {
+
+        public List<IShowItem> Objects { get; } = new List<IShowItem>();
+        public TCamera Camera { get; set; }
+        public Dictionary<string, TCamera> Cameras = new Dictionary<string, TCamera>();
+
+        public void Draw(DrawContext context)
+        {
+            if (!context.ForceViewport && Camera != null) context.View = Camera.ViewMatrix;
+
+            for(int i = 0; i < Objects.Count; i++)
+                Objects[i].Draw(context);
+        }
+
+    }
+}

SMCode/SM.Base/Scene/IShowCollection.cs

@@ -0,0 +1,9 @@
+using System.Collections.Generic;
+
+namespace SM.Base.Scene
+{
+    public interface IShowCollection
+    {
+        List<IShowItem> Objects { get; }
+    }
+}

SMCode/SM.Base/Scene/IShowItem.cs

@@ -0,0 +1,10 @@
+using SM.Base.Contexts;
+
+namespace SM.Base.Scene
+{
+    public interface IShowItem
+    {
+        void Update(UpdateContext context);
+        void Draw(DrawContext context);
+    }
+}

SMCode/SM.Base/Shader/Files/default.frag

@@ -0,0 +1,8 @@
+#version 330
+uniform vec4 Tint;
+
+layout(location = 0) out vec4 color;
+
+void main() {
+    color = vec4(1,1,1,1) + Tint;
+}

SMCode/SM.Base/Shader/Files/default.vert

@@ -0,0 +1,9 @@
+#version 330
+layout(location = 0) in vec3 aPos;
+
+uniform mat4 MVP;
+uniform mat4 ModelMatrix;
+
+void main() {
+    gl_Position = MVP * ModelMatrix * vec4(aPos, 1);
+}

SMCode/SM.Base/Shader/InstanceShader.cs

@@ -0,0 +1,32 @@
+using System;
+using OpenTK;
+using OpenTK.Graphics.OpenGL4;
+using SM.Base.Contexts;
+using SM.Base.StaticObjects;
+using SM.OGL.Shaders;
+
+namespace SM.Base.Shader
+{
+    public class InstanceShader : GenericShader
+    {
+        protected override bool AutoCompile { get; } = true;
+
+        public Action<UniformCollection, DrawContext> SetUniform;
+
+        public InstanceShader(string vertex, string fragment, Action<UniformCollection, DrawContext> setUniform) : base(
+            new ShaderFileCollection(vertex, fragment))
+        {
+            SetUniform = setUniform;
+        }
+        public void Draw(DrawContext context)
+        {
+            GL.UseProgram(this);
+
+            SetUniform.Invoke(Uniforms, context);
+
+            DrawObject(context.Mesh, true);
+
+            GL.UseProgram(0);
+        }
+    }
+}

SMCode/SM.Base/Shader/Shaders.cs

@@ -0,0 +1,18 @@
+using System.IO;
+using System.Reflection;
+using SM.OGL.Shaders;
+
+namespace SM.Base.Shader
+{
+    public class Shaders
+    {
+        public static InstanceShader Default = new InstanceShader(new StreamReader(Assembly.GetExecutingAssembly().GetManifestResourceStream("SM.Base.Shader.Files.default.vert")).ReadToEnd(),
+            new StreamReader(Assembly.GetExecutingAssembly().GetManifestResourceStream("SM.Base.Shader.Files.default.frag")).ReadToEnd(),
+            ((u, context) =>
+            {
+                u["MVP"].SetMatrix4(context.View * context.World);
+                u["ModelMatrix"].SetMatrix4(context.ModelMatrix);
+                u["Tint"].SetUniform4(1,1,1,1);
+            }));
+    }
+}

SMCode/SM.Base/TestShader.cs

@@ -1,25 +0,0 @@
-using OpenTK;
-using OpenTK.Graphics.OpenGL4;
-using SM.Base.StaticObjects;
-using SM.OGL.Shaders;
-
-namespace SM.Base
-{
-    public class TestShader : GenericShader
-    {
-        public TestShader(ShaderFileCollection shaderFileFiles) : base(shaderFileFiles)
-        {
-        }
-
-        public void Draw(Matrix4 mvp)
-        {
-            GL.UseProgram(this);
-
-            Uniforms["MVP"].SetMatrix4(mvp);
-
-            DrawObject(Plate.Object, true);
-
-            GL.UseProgram(0);
-        }
-    }
-}

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

@@ -0,0 +1,18 @@
+using OpenTK;
+using SM.Base.Scene;
+using SM.OGL.Mesh;
+
+namespace SM.Base.Contexts
+{
+    public struct DrawContext
+    {
+        public bool ForceViewport;
+
+        public Matrix4 World;
+        public Matrix4 View;
+        public Matrix4 ModelMatrix;
+
+        public Mesh Mesh;
+
+    }
+}

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

@@ -0,0 +1,7 @@
+namespace SM.Base.Contexts
+{
+    public struct UpdateContext
+    {
+        public double Deltatime;
+    }
+}

SMCode/SM.Base/Window/GenericWindow.cs

@@ -0,0 +1,65 @@
+using System;
+using System.IO;
+using OpenTK;
+using OpenTK.Graphics;
+using OpenTK.Graphics.OpenGL4;
+using SM.Base.Contexts;
+using SM.Base.Scene;
+using SM.Base.StaticObjects;
+using SM.OGL.Shaders;
+
+namespace SM.Base
+{
+    public class GenericWindow<TScene, TCamera> : GameWindow
+        where TScene : GenericScene<TCamera>, new()
+        where TCamera : GenericCamera, new()
+    {
+        private TCamera _viewportCamera;
+
+        public TScene CurrentScene { get; private set; }
+        public bool ForceViewportCamera { get; set; } = false;
+
+        public GenericWindow() : base(1280, 720, GraphicsMode.Default, "Testing", GameWindowFlags.Default, DisplayDevice.Default, 0, 0, GraphicsContextFlags.Default, null, true)
+        {
+            _viewportCamera = new TCamera();
+        }
+
+        protected override void OnLoad(EventArgs e)
+        {
+            base.OnLoad(e);
+        }
+
+        protected override void OnRenderFrame(FrameEventArgs e)
+        {
+            DrawContext drawContext = new DrawContext()
+            {
+                World = _viewportCamera.World,
+                View = _viewportCamera.CalculateViewMatrix(),
+                ModelMatrix = Matrix4.Identity,
+                Mesh = Plate.Object,
+                ForceViewport = ForceViewportCamera
+            };
+
+            base.OnRenderFrame(e);
+
+            GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
+
+            CurrentScene.Draw(drawContext);
+
+            SwapBuffers();
+        }
+
+        protected override void OnResize(EventArgs e)
+        {
+            base.OnResize(e);
+
+            GL.Viewport(ClientRectangle);
+            _viewportCamera.RecalculateWorld(Width, Height);
+        }
+
+        public virtual void SetScene(TScene scene)
+        {
+            CurrentScene = scene;
+        }
+    }
+}

SMCode/SM.OGL/Shaders/GenericShader.cs

@@ -15,7 +15,7 @@ namespace SM.OGL.Shaders
             ShaderFileFiles = shaderFileFiles;
         }
 
-        public void Compile()
+        public void Load()
         {
             
             _id = GL.CreateProgram();
@@ -41,6 +41,11 @@ namespace SM.OGL.Shaders
 
         }
 
+        protected override void Compile()
+        {
+            Load();
+        }
+
         public void DrawObject(Mesh.Mesh mesh, bool bindVAO = false)
         {
             if (bindVAO) GL.BindVertexArray(mesh);

SMCode/SM.OGL/Shaders/ShaderFileCollection.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using OpenTK.Graphics.OpenGL4;
 
 namespace SM.OGL.Shaders
@@ -9,6 +10,8 @@ namespace SM.OGL.Shaders
         public ShaderFile Geometry;
         public ShaderFile Fragment;
 
+        public Action<UniformCollection> SetUniforms;
+
         public ShaderFileCollection(string vertex, string fragment) : this(new ShaderFile(vertex), new ShaderFile(fragment)) {}
 
         public ShaderFileCollection(ShaderFile vertex, ShaderFile fragment, ShaderFile geometry = default)
@@ -16,6 +19,8 @@ namespace SM.OGL.Shaders
             Vertex = vertex;
             Geometry = geometry;
             Fragment = fragment;
+
+            SetUniforms = u => { };
         }
 
         internal void Append(GenericShader shader)

SMCode/SM2D/Drawing/DrawEmpty.cs

@@ -0,0 +1,24 @@
+using OpenTK;
+using SM.Base.Contexts;
+using SM.Base.Scene;
+using SM.Base.Shader;
+using SM.Base.StaticObjects;
+using SM.OGL.Mesh;
+
+namespace SM2D.Drawing
+{
+    public class DrawEmpty : IShowItem
+    {
+        public void Update(UpdateContext context)
+        {
+            throw new System.NotImplementedException();
+        }
+
+        public void Draw(DrawContext context)
+        {
+            context.ModelMatrix = Matrix4.CreateScale(100, 100, 1);
+
+            Shaders.Default.Draw(context);
+        }
+    }
+}

SMCode/SM2D/GLWindow2D.cs

@@ -0,0 +1,10 @@
+using SM.Base;
+using SM2D.Scene;
+
+namespace SM2D
+{
+    public class GLWindow2D : GenericWindow<Scene.Scene, Camera>
+    {
+        
+    }
+}

SMCode/SM2D/OpenTK.dll.config

@@ -0,0 +1,25 @@
+<configuration>
+  <dllmap os="linux" dll="opengl32.dll" target="libGL.so.1"/>
+  <dllmap os="linux" dll="glu32.dll" target="libGLU.so.1"/>
+  <dllmap os="linux" dll="openal32.dll" target="libopenal.so.1"/>
+  <dllmap os="linux" dll="alut.dll" target="libalut.so.0"/>
+  <dllmap os="linux" dll="opencl.dll" target="libOpenCL.so"/>
+  <dllmap os="linux" dll="libX11" target="libX11.so.6"/>
+  <dllmap os="linux" dll="libXi" target="libXi.so.6"/>
+  <dllmap os="linux" dll="SDL2.dll" target="libSDL2-2.0.so.0"/>
+  <dllmap os="osx" dll="opengl32.dll" target="/System/Library/Frameworks/OpenGL.framework/OpenGL"/>
+  <dllmap os="osx" dll="openal32.dll" target="/System/Library/Frameworks/OpenAL.framework/OpenAL" />
+  <dllmap os="osx" dll="alut.dll" target="/System/Library/Frameworks/OpenAL.framework/OpenAL" />
+  <dllmap os="osx" dll="libGLES.dll" target="/System/Library/Frameworks/OpenGLES.framework/OpenGLES" />
+  <dllmap os="osx" dll="libGLESv1_CM.dll" target="/System/Library/Frameworks/OpenGLES.framework/OpenGLES" />
+  <dllmap os="osx" dll="libGLESv2.dll" target="/System/Library/Frameworks/OpenGLES.framework/OpenGLES" />
+  <dllmap os="osx" dll="opencl.dll" target="/System/Library/Frameworks/OpenCL.framework/OpenCL"/>
+  <dllmap os="osx" dll="SDL2.dll" target="libSDL2.dylib"/>
+  <!-- XQuartz compatibility (X11 on Mac) -->
+  <dllmap os="osx" dll="libGL.so.1" target="/usr/X11/lib/libGL.dylib"/>
+  <dllmap os="osx" dll="libX11" target="/usr/X11/lib/libX11.dylib"/>
+  <dllmap os="osx" dll="libXcursor.so.1" target="/usr/X11/lib/libXcursor.dylib"/>
+  <dllmap os="osx" dll="libXi" target="/usr/X11/lib/libXi.dylib"/>
+  <dllmap os="osx" dll="libXinerama" target="/usr/X11/lib/libXinerama.dylib"/>
+  <dllmap os="osx" dll="libXrandr.so.2" target="/usr/X11/lib/libXrandr.dylib"/>
+</configuration>

SMCode/SM2D/SM2D.csproj

@@ -31,6 +31,9 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
+    <Reference Include="OpenTK, Version=3.2.0.0, Culture=neutral, PublicKeyToken=bad199fe84eb3df4, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\OpenTK.3.2\lib\net20\OpenTK.dll</HintPath>
+    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Xml.Linq" />
@@ -41,7 +44,26 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="Drawing\DrawEmpty.cs" />
+    <Compile Include="GLWindow2D.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Scene\Camera.cs" />
+    <Compile Include="Scene\Scene.cs" />
   </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\SM.Base\SM.Base.csproj">
+      <Project>{8e733844-4204-43e7-b3dc-3913cddabb0d}</Project>
+      <Name>SM.Base</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\SM.OGL\SM.OGL.csproj">
+      <Project>{f604d684-bc1d-4819-88b5-8b5d03a17be0}</Project>
+      <Name>SM.OGL</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="OpenTK.dll.config" />
+    <None Include="packages.config" />
+  </ItemGroup>
+  <ItemGroup />
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
 </Project>

SMCode/SM2D/Scene/Camera.cs

@@ -0,0 +1,22 @@
+using OpenTK;
+using SM.Base.Scene;
+
+namespace SM2D.Scene
+{
+    public class Camera : GenericCamera
+    {
+        public override bool Orthographic { get; } = true;
+
+        public Vector2 Position;
+
+        public override Matrix4 ViewCalculation()
+        {
+            return Matrix4.LookAt(Position.X, Position.Y, -1, Position.X, Position.Y, 0, 0, 1, 0);
+        }
+
+        public override void RecalculateWorld(float width, float height)
+        {
+            OrthographicWorld = Matrix4.CreateOrthographic(width, height, 0.1f, 100);
+        }
+    }
+}

SMCode/SM2D/Scene/Scene.cs

@@ -0,0 +1,9 @@
+using SM.Base.Scene;
+
+namespace SM2D.Scene
+{
+    public class Scene : GenericScene<Camera>
+    {
+        
+    }
+}

SMCode/SM2D/packages.config

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="OpenTK" version="3.2" targetFramework="net452" />
+</packages>