Fixes to polygon and ellipse nodes

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/Procedural/Shape/PolygonNode.cs

 
         static string Unity_Polygon(
             [Slot(0, Binding.MeshUV0)] Vector2 UV,
-            [Slot(1, Binding.None, 6, 6, 6, 6)] Vector1 Sides,
-            [Slot(2, Binding.None, 1, 1, 1, 1)] Vector1 Radius,
-            [Slot(3, Binding.None)] Vector1 Rotation,
+            [Slot(1, Binding.None, 6, 0, 0, 0)] Vector1 Sides,
+            [Slot(2, Binding.None, 0.5f, 0, 0, 0)] Vector1 Width,
+            [Slot(3, Binding.None, 0.5f, 0, 0, 0)] Vector1 Height,
             [Slot(4, Binding.None)] out DynamicDimensionVector Out)
         {
             return
-    {precision}2 uv = (UV * 2 - 1) * {precision}2(1, -1);
-    {precision} pCoord = atan2(uv.x, uv.y) + radians(Rotation);
+    {precision}2 uv = (UV * 2 - 1) / {precision}2(Width, Height);
+    uv.y *= -1;
+    {precision} pCoord = atan2(uv.x, uv.y);
-    {precision} value = 1.0 - smoothstep(.4, .41, distance);
+    {precision} value = 1 - step(1, smoothstep(0, 1, distance));
     Out = value;
 }
 ";

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/Procedural/Shape/RepeatingDotNode.cs

 using System.Reflection;
 using UnityEngine;
 
-/*namespace UnityEditor.ShaderGraph
+namespace UnityEditor.ShaderGraph
-    [Title("Procedural", "MakeSubgraph", "Repeating Dot")]
-    public class RepeatingDotNode : CodeFunctionNode
+    [Title("Procedural", "Shape", "Ellipse")]
+    public class EllipseNode : CodeFunctionNode
-        public RepeatingDotNode()
+        public EllipseNode()
-            name = "Repeating Dot";
+            name = "Ellipse";
-            return GetType().GetMethod("Unity_Repreatingdot", BindingFlags.Static | BindingFlags.NonPublic);
+            return GetType().GetMethod("Unity_Ellipse", BindingFlags.Static | BindingFlags.NonPublic);
-        static string Unity_Repreatingdot(
+        static string Unity_Ellipse(
-            [Slot(1, Binding.None, 4.0f, 4.0f, 4.0f, 4.0f)] Vector1 Count,
-            [Slot(2, Binding.None, 0.5f, 0.5f, 0.5f, 0.5f)] Vector1 Radius,
+            [Slot(2, Binding.None, 0.5f, 0, 0, 0)] Vector1 Width,
+            [Slot(3, Binding.None, 0.5f, 0, 0, 0)] Vector1 Height,
-    UV *= 2.0 - 1.0;
-    UV = fmod(UV * Count, 1.0) * 2.0 - 1.0;
-    Out = step(length(UV),Radius);
+    UV = (UV * 2.0 - 1.0);
+    UV = UV / {precision}2(Width, Height);
+    Out = step(length(UV), 1);
-}*/
+}