2021-04-03

+ Added Field to DrawingBasis to enfore PrimitiveTypes
+ LastObject to context for Debugging
+ AppendRenderbuffer to Framebuffer

~ Added a depthbuffer to RenderPipeline.CreateWindowFramebuffer
~ Proper ZIndices over Z-Translation and DepthBuffer
~ Made "ShaderArguments["LineWidth"]" set the LineWidth even if the object isn't maked as LineMesh
~ Made that the SM2D.PolygonVertex can translate OpenTK.Vector2 by itself.
~ Made the SM2D.Transformation.ZIndex a CVector1 instead a float

SMCode/SM.OGL/Framebuffer/Framebuffer.cs

@@ -30,6 +30,22 @@ namespace SM.OGL.Framebuffer
         private IFramebufferWindow _window;
         private float _windowScale;
 
+        /// <inheritdoc />
+        public override ObjectLabelIdentifier TypeIdentifier { get; } = ObjectLabelIdentifier.Framebuffer;
+
+        /// <summary>
+        /// Contains the size of the framebuffer.
+        /// </summary>
+        public Vector2 Size { get; private set; }
+
+        /// <summary>
+        /// Contains all color attachments.
+        /// </summary>
+        public Dictionary<string, ColorAttachment> ColorAttachments { get; private set; } =
+            new Dictionary<string, ColorAttachment>();
+
+        public List<RenderbufferAttachment> RenderbufferAttachments { get; } = new List<RenderbufferAttachment>();
+
         /// <summary>
         /// Creates a buffer without any options.
         /// </summary>
@@ -58,20 +74,6 @@ namespace SM.OGL.Framebuffer
             Size = size;
         }
 
-        /// <inheritdoc />
-        public override ObjectLabelIdentifier TypeIdentifier { get; } = ObjectLabelIdentifier.Framebuffer;
-
-        /// <summary>
-        /// Contains the size of the framebuffer.
-        /// </summary>
-        public Vector2 Size { get; private set; }
-
-        /// <summary>
-        /// Contains all color attachments.
-        /// </summary>
-        public Dictionary<string, ColorAttachment> ColorAttachments { get; private set; } =
-            new Dictionary<string, ColorAttachment>();
-
         /// <inheritdoc />
         public override void Compile()
         {
@@ -97,6 +99,12 @@ namespace SM.OGL.Framebuffer
                 GL.FramebufferTexture2D(FramebufferTarget.Framebuffer, pair.Value.FramebufferAttachment, pair.Value.Target, pair.Value.ID,
                     0);
 
+            foreach (RenderbufferAttachment attachment in RenderbufferAttachments)
+            {
+                int att = attachment.Generate(this);
+                GL.FramebufferRenderbuffer(FramebufferTarget.Framebuffer, attachment.FramebufferAttachment, RenderbufferTarget.Renderbuffer, att);
+            }
+
             var err = GL.CheckFramebufferStatus(FramebufferTarget.Framebuffer);
             if (err != FramebufferErrorCode.FramebufferComplete)
                 throw new Exception("Failed loading framebuffer.\nProblem: " + err);
@@ -125,6 +133,11 @@ namespace SM.OGL.Framebuffer
             ColorAttachments.Add(key, value);
         }
 
+        public void AppendRenderbuffer(RenderbufferAttachment attachment)
+        {
+            RenderbufferAttachments.Add(attachment);
+        }
+
         /// <summary>
         /// Activates the framebuffer without clearing the buffer.
         /// </summary>

SMCode/SM.OGL/Framebuffer/RenderbufferAttachment.cs

@@ -0,0 +1,35 @@
+using OpenTK.Graphics.OpenGL4;
+
+namespace SM.OGL.Framebuffer
+{
+    public struct RenderbufferAttachment
+    {
+        public static readonly RenderbufferAttachment Depth = new RenderbufferAttachment(RenderbufferStorage.Depth24Stencil8, FramebufferAttachment.DepthStencilAttachment);
+
+        public RenderbufferStorage Storage;
+        public FramebufferAttachment FramebufferAttachment;
+
+        public int Multisample;
+
+        public RenderbufferAttachment(RenderbufferStorage storage, FramebufferAttachment framebufferAttachment, int multisample = 0)
+        {
+            Storage = storage;
+            FramebufferAttachment = framebufferAttachment;
+            Multisample = multisample;
+        }
+
+        public int Generate(Framebuffer f)
+        {
+            int rbo = GL.GenRenderbuffer();
+            
+            GL.BindRenderbuffer(RenderbufferTarget.Renderbuffer, rbo);
+            if (Multisample != 0)
+                GL.RenderbufferStorageMultisample(RenderbufferTarget.Renderbuffer, Multisample, Storage, (int)f.Size.X, (int)f.Size.Y);
+            else
+                GL.RenderbufferStorage(RenderbufferTarget.Renderbuffer, Storage, (int)f.Size.X, (int)f.Size.Y);
+            GL.BindRenderbuffer(RenderbufferTarget.Renderbuffer, 0);
+
+            return rbo;
+        }
+    }
+}