Working on improving texture node:

*Default texture inputs
*Works via subgraph :)

MaterialGraphProject/Assets/NewNodes/Editor/Keep/TextureSamplerNode.cs

             AddSlot(new Vector1MaterialSlot(OutputSlotGId, kOutputSlotGName, kOutputSlotGName, SlotType.Output, 0));
             AddSlot(new Vector1MaterialSlot(OutputSlotBId, kOutputSlotBName, kOutputSlotBName, SlotType.Output, 0));
             AddSlot(new Vector1MaterialSlot(OutputSlotAId, kOutputSlotAName, kOutputSlotAName, SlotType.Output, 0));
-            AddSlot(new Texture2DMaterialSlot(TextureInputId, kTextureInputName, kTextureInputName, SlotType.Input));
-            AddSlot(new Vector2MaterialSlot(UVInput, kUVInputName, kUVInputName, SlotType.Input, Vector4.zero));
+            AddSlot(new Texture2DInputMaterialSlot(TextureInputId, kTextureInputName, kTextureInputName));
+            AddSlot(new UVMaterialSlot(UVInput, kUVInputName, kUVInputName, UVChannel.uv0));
             AddSlot(new SamplerStateMaterialSlot(SamplerInput, kSamplerInputName, kSamplerInputName, SlotType.Input));
             RemoveSlotsNameNotMatching(new[] { OutputSlotRGBAId, OutputSlotRId, OutputSlotGId, OutputSlotBId, OutputSlotAId, TextureInputId, UVInput, SamplerInput });
         }
         {
-            //Texture input slot
-            var textureSlot = FindInputSlot<MaterialSlot>(TextureInputId);
-            var edgesTexture = owner.GetEdges(textureSlot.slotReference);
-            // if no texture connected return nothing
-            if (!edgesTexture.Any())
-            {
-                visitor.AddShaderChunk(precision + "4 " + GetVariableNameForSlot(OutputSlotRGBAId) + " = " + precision + "4(0,0,0,0);", true);
-                return;
-            }
-
-            //UV input slot
-            var uvSlot = FindInputSlot<MaterialSlot>(UVInput);
-            var uvName = string.Format("{0}.xy", UVChannel.uv0.GetUVName());
-            var edgesUV = owner.GetEdges(uvSlot.slotReference);
-            if (edgesUV.Any())
-                uvName = GetSlotValue(UVInput, generationMode);
+            var uvName = GetSlotValue(UVInput, generationMode);
 
             //Sampler input slot
             var samplerSlot = FindInputSlot<MaterialSlot>(SamplerInput);
 
         public bool RequiresMeshUV(UVChannel channel)
         {
-            if (channel != UVChannel.uv0)
-            {
+            var uvSlot = FindInputSlot<MaterialSlot>(UVInput) as UVMaterialSlot;
+            if (uvSlot == null)
-            }
-            var uvSlot = FindInputSlot<MaterialSlot>(UVInput);
-            if (uvSlot == null)
-                return true;
+            if (uvSlot.isConnected)
+                return false;
-            var edges = owner.GetEdges(uvSlot.slotReference).ToList();
-            return edges.Count == 0;
+            return uvSlot.RequiresMeshUV(channel);
         }
     }
 }

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/BitangentMaterialSlot.cs

 using System;
-using UnityEditor.Graphing;
-using UnityEngine;
-    public class BitangentMaterialSlot : Vector3MaterialSlot, IMayRequireBitangent
+    public class BitangentMaterialSlot : SpaceMaterialSlot, IMayRequireBitangent
-        private CoordinateSpace m_Space = CoordinateSpace.World;
-
-        public CoordinateSpace space
-        {
-            get { return m_Space; }
-            set { m_Space = value; }
-        }
+        public BitangentMaterialSlot() : base()
+        {}
-            : base(slotId, displayName, shaderOutputName, SlotType.Input, Vector3.zero, shaderStage, hidden)
-        {
-            this.space = space;
-        }
+            : base(slotId, displayName, shaderOutputName, space, shaderStage, hidden)
+        {}
 
         public override string GetDefaultValue(GenerationMode generationMode)
         {

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/DynamicVectorMaterialSlot.cs

         {
             return precision + "4 (" + value.x + "," + value.y + "," + value.z + "," + value.w + ")";
         }
+
+        public override void AddDefaultProperty(PropertyCollector properties, GenerationMode generationMode)
+        {
+            if (!generationMode.IsPreview())
+                return;
+
+            var matOwner = owner as AbstractMaterialNode;
+            if (matOwner == null)
+                throw new Exception(string.Format("Slot {0} either has no owner, or the owner is not a {1}", this, typeof(AbstractMaterialNode)));
+
+            IShaderProperty property;
+            switch (concreteValueType)
+            {
+                case ConcreteSlotValueType.Vector4:
+                    property = new Vector4ShaderProperty();
+                    break;
+                case ConcreteSlotValueType.Vector3:
+                    property = new Vector3ShaderProperty();
+                    break;
+                case ConcreteSlotValueType.Vector2:
+                    property = new Vector2ShaderProperty();
+                    break;
+                case ConcreteSlotValueType.Vector1:
+                    property = new FloatShaderProperty();
+                    break;
+                default:
+                    throw new ArgumentOutOfRangeException();
+            }
+
+            property.overrideReferenceName = matOwner.GetVariableNameForSlot(id);
+            property.generatePropertyBlock = false;
+            properties.AddShaderProperty(property);
+        }
+
+        public override void CopyValuesFrom(MaterialSlot foundSlot)
+        {
+            var slot = foundSlot as DynamicVectorMaterialSlot;
+            if (slot != null)
+                value = slot.value;
+        }
     }
 }

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/MaterialSlot.cs

                 case SlotValueType.Matrix2:
                     return new Matrix2MaterialSlot(slotId, displayName, shaderOutputName, slotType, shaderStage, hidden);
                 case SlotValueType.Texture2D:
-                    return new Texture2DMaterialSlot(slotId, displayName, shaderOutputName, slotType, shaderStage, hidden);
+                    return slotType == SlotType.Input
+                        ? new Texture2DInputMaterialSlot(slotId, displayName, shaderOutputName, shaderStage, hidden)
+                        : new Texture2DMaterialSlot(slotId, displayName, shaderOutputName, slotType, shaderStage, hidden);
                 case SlotValueType.Dynamic:
                     return new DynamicVectorMaterialSlot(slotId, displayName, shaderOutputName, slotType, defaultValue, shaderStage, hidden);
                 case SlotValueType.Vector4:
             if (matOwner == null)
                 throw new Exception(string.Format("Slot {0} either has no owner, or the owner is not a {1}", this, typeof(AbstractMaterialNode)));
 
-            if (concreteValueType == ConcreteSlotValueType.Texture2D)
-                return Texture2DMaterialSlot.DefaultTextureName;
-
             if (generationMode.IsPreview())
                 return matOwner.GetVariableNameForSlot(id);
 
             return "error";
         }
 
-        public void AddDefaultProperty(PropertyCollector properties, GenerationMode generationMode)
-        {
-            // share tex2d for all non connected slots :)
-            if (concreteValueType == ConcreteSlotValueType.Texture2D)
-            {
-                var prop = new TextureShaderProperty();
-                prop.overrideReferenceName = Texture2DMaterialSlot.DefaultTextureName;
-                prop.modifiable = false;
-                prop.generatePropertyBlock = true;
-                properties.AddShaderProperty(prop);
-                return;
-            }
-
-            if (concreteValueType == ConcreteSlotValueType.SamplerState)
-                return;
-
-            if (!generationMode.IsPreview())
-                return;
-
-            var matOwner = owner as AbstractMaterialNode;
-            if (matOwner == null)
-                throw new Exception(string.Format("Slot {0} either has no owner, or the owner is not a {1}", this, typeof(AbstractMaterialNode)));
-
-            IShaderProperty property;
-            switch (concreteValueType)
-            {
-                case ConcreteSlotValueType.Vector4:
-                    property = new Vector4ShaderProperty();
-                    break;
-                case ConcreteSlotValueType.Vector3:
-                    property = new Vector3ShaderProperty();
-                    break;
-                case ConcreteSlotValueType.Vector2:
-                    property = new Vector2ShaderProperty();
-                    break;
-                case ConcreteSlotValueType.Vector1:
-                    property = new FloatShaderProperty();
-                    break;
-                default:
-                    throw new ArgumentOutOfRangeException();
-            }
-
-            property.overrideReferenceName = matOwner.GetVariableNameForSlot(id);
-            property.generatePropertyBlock = false;
-
-            properties.AddShaderProperty(property);
-        }
+        public abstract void AddDefaultProperty(PropertyCollector properties, GenerationMode generationMode);
 
         protected static PropertyType ConvertConcreteSlotValueTypeToPropertyType(ConcreteSlotValueType slotValue)
         {
         {
             return null;
         }
+
+        public abstract void CopyValuesFrom(MaterialSlot foundSlot);
     }
 }

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/Matrix2MaterialSlot.cs

             return precision + "2x2 (1,0,0,1)";
         }
 
+        public override void AddDefaultProperty(PropertyCollector properties, GenerationMode generationMode)
+        {}
+
+        public override void CopyValuesFrom(MaterialSlot foundSlot)
+        {
+
+        }
+
+
+
     }
 }

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/Matrix3MaterialSlot.cs

             return precision + "3x3 (1,0,0,0,1,0,0,0,1)";
         }
 
+        public override void AddDefaultProperty(PropertyCollector properties, GenerationMode generationMode)
+        {
+        }
+
+        public override void CopyValuesFrom(MaterialSlot foundSlot)
+        {
+
+        }
+
         public override SlotValueType valueType { get { return SlotValueType.Matrix3; } }
         public override ConcreteSlotValueType concreteValueType { get { return ConcreteSlotValueType.Matrix3; } }
     }

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/Matrix4MaterialSlot.cs

             return precision + "4x4 (1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1)";
         }
 
+        public override void AddDefaultProperty(PropertyCollector properties, GenerationMode generationMode)
+        {
+
+        }
+
+        public override void CopyValuesFrom(MaterialSlot foundSlot)
+        {
+
+        }
+
         public override SlotValueType valueType { get { return SlotValueType.Matrix4; } }
         public override ConcreteSlotValueType concreteValueType { get { return ConcreteSlotValueType.Matrix4; } }
     }

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/NormalMaterialSlot.cs

 namespace UnityEditor.ShaderGraph
 {
     [Serializable]
-    public class NormalMaterialSlot : Vector3MaterialSlot, IMayRequireNormal
+    public class NormalMaterialSlot : SpaceMaterialSlot, IMayRequireNormal
-        private CoordinateSpace m_Space = CoordinateSpace.World;
-        public CoordinateSpace space
-        {
-            get { return m_Space; }
-            set { m_Space = value; }
-        }
+        public NormalMaterialSlot()
+        {}
-            : base(slotId, displayName, shaderOutputName, SlotType.Input, Vector3.zero, shaderStage, hidden)
-        {
-            this.space = space;
-        }
+            : base(slotId, displayName, shaderOutputName, space, shaderStage, hidden)
+        {}
 
         public override string GetDefaultValue(GenerationMode generationMode)
         {

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/PositionMaterialSlot.cs

 namespace UnityEditor.ShaderGraph
 {
     [Serializable]
-    public class PositionMaterialSlot : Vector3MaterialSlot, IMayRequirePosition
+    public class PositionMaterialSlot : SpaceMaterialSlot, IMayRequirePosition
-        private CoordinateSpace m_Space = CoordinateSpace.World;
-
-        public CoordinateSpace space
-        {
-            get { return m_Space; }
-            set { m_Space = value; }
-        }
+        public PositionMaterialSlot()
+        {}
-            : base(slotId, displayName, shaderOutputName, SlotType.Input, Vector3.zero, shaderStage, hidden)
-        {
-            this.space = space;
-        }
+            : base(slotId, displayName, shaderOutputName, space, shaderStage, hidden)
+        {}
 
         public override string GetDefaultValue(GenerationMode generationMode)
         {

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/SamplerStateMaterialSlot.cs

 
         public override SlotValueType valueType { get { return SlotValueType.SamplerState; } }
         public override ConcreteSlotValueType concreteValueType { get { return ConcreteSlotValueType.SamplerState; } }
+        public override void AddDefaultProperty(PropertyCollector properties, GenerationMode generationMode)
+        {
+        }
+
+        public override void CopyValuesFrom(MaterialSlot foundSlot)
+        {
+
+        }
     }
 }

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/SerializableTexture.cs

 using System;
-using UnityEditor;
 using UnityEngine;
 
 namespace UnityEditor.ShaderGraph
     {
-        [SerializeField] private string m_SerializedTexture;
+        [SerializeField]
+        private string m_SerializedTexture;
 
         [Serializable]
         private class TextureHelper
 
-#if UNITY_EDITOR
         public Texture texture
         {
             get
                 m_SerializedTexture = EditorJsonUtility.ToJson(tex, true);
             }
         }
-#else
-        public Texture defaultTexture {get; set; }
-#endif
-
-}
+}

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/TangentMaterialSlot.cs

 namespace UnityEditor.ShaderGraph
 {
     [Serializable]
-    public class TangentMaterialSlot : Vector3MaterialSlot, IMayRequireTangent
+    public class TangentMaterialSlot : SpaceMaterialSlot, IMayRequireTangent
-        private CoordinateSpace m_Space = CoordinateSpace.World;
-
-        public CoordinateSpace space
-        {
-            get { return m_Space; }
-            set { m_Space = value; }
-        }
+        public TangentMaterialSlot()
+        {}
-            : base(slotId, displayName, shaderOutputName, SlotType.Input, Vector3.zero, shaderStage, hidden)
-        {
-            this.space = space;
-        }
+            : base(slotId, displayName, shaderOutputName, space, shaderStage, hidden)
+        {}
 
         public override string GetDefaultValue(GenerationMode generationMode)
         {

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/Texture2DMaterialSlot.cs

     public class Texture2DMaterialSlot : MaterialSlot
     {
         public Texture2DMaterialSlot()
-        {
-        }
+        {}
 
         public Texture2DMaterialSlot(
             int slotId,
             ShaderStage shaderStage = ShaderStage.Dynamic,
             bool hidden = false)
-            :base(slotId, displayName, shaderOutputName, slotType, shaderStage, hidden)
-        {
-        }
-
-        public static readonly string DefaultTextureName = "ShaderGraph_DefaultTexture";
+            : base(slotId, displayName, shaderOutputName, slotType, shaderStage, hidden)
+        {}
+
+        public override void AddDefaultProperty(PropertyCollector properties, GenerationMode generationMode)
+        {}
+
+        public override void CopyValuesFrom(MaterialSlot foundSlot)
+        {}
     }
 }

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/TextureShaderProperty.cs

     public class TextureShaderProperty : AbstractShaderProperty<SerializableTexture>
     {
         [SerializeField]
-        private bool m_Modifiable;
+        private bool m_Modifiable = true;
 
         public TextureShaderProperty()
         {
             var result = new StringBuilder();
             if (!m_Modifiable)
             {
-                result.Append("[HideInInspector] ");
                 result.Append("[NonModifiableTextureData] ");
             }
             result.Append("[NoScaleOffset] ");

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/UVMaterialSlot.cs

             set { m_Channel = value; }
         }
 
+        public UVMaterialSlot()
+        {}
+
         public UVMaterialSlot(int slotId, string displayName, string shaderOutputName, UVChannel channel,
             ShaderStage shaderStage = ShaderStage.Dynamic, bool hidden = false)
             : base(slotId, displayName, shaderOutputName, SlotType.Input, Vector2.zero, shaderStage, hidden)
                 return false;
 
             return m_Channel == channel;
+        }
+
+        public override void CopyValuesFrom(MaterialSlot foundSlot)
+        {
+            var slot = foundSlot as UVMaterialSlot;
+            if (slot != null)
+                channel = slot.channel;
         }
     }
 }

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/Vector1MaterialSlot.cs

         private float m_DefaultValue;
 
         public Vector1MaterialSlot()
-        {
-        }
+        {}
 
         public Vector1MaterialSlot(
             int slotId,
             return value.ToString();
         }
 
+        public override void AddDefaultProperty(PropertyCollector properties, GenerationMode generationMode)
+        {
+            if (!generationMode.IsPreview())
+                return;
+
+            var matOwner = owner as AbstractMaterialNode;
+            if (matOwner == null)
+                throw new Exception(string.Format("Slot {0} either has no owner, or the owner is not a {1}", this, typeof(AbstractMaterialNode)));
+
+            var property = new FloatShaderProperty()
+            {
+                overrideReferenceName = matOwner.GetVariableNameForSlot(id),
+                generatePropertyBlock = false,
+                value = value
+            };
+            properties.AddShaderProperty(property);
+        }
+
         public override SlotValueType valueType { get { return SlotValueType.Vector1; } }
         public override ConcreteSlotValueType concreteValueType { get { return ConcreteSlotValueType.Vector1; } }
 
                 m_Color = new Vector4(value, value, value, value),
             };
             return pp;
+        }
+
+        public override void CopyValuesFrom(MaterialSlot foundSlot)
+        {
+            var slot = foundSlot as Vector1MaterialSlot;
+            if (slot != null)
+                value = slot.value;
         }
     }
 }

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/Vector2MaterialSlot.cs

             return precision + "2 (" + value.x + "," + value.y + ")";
         }
 
+        public override void AddDefaultProperty(PropertyCollector properties, GenerationMode generationMode)
+        {
+            if (!generationMode.IsPreview())
+                return;
+
+            var matOwner = owner as AbstractMaterialNode;
+            if (matOwner == null)
+                throw new Exception(string.Format("Slot {0} either has no owner, or the owner is not a {1}", this, typeof(AbstractMaterialNode)));
+
+            var property = new Vector2ShaderProperty
+            {
+                overrideReferenceName = matOwner.GetVariableNameForSlot(id),
+                generatePropertyBlock = false,
+                value = value
+            };
+            properties.AddShaderProperty(property);
+        }
+
         public override PreviewProperty GetPreviewProperty(string name)
         {
             var pp = new PreviewProperty
 
         public override SlotValueType valueType { get { return SlotValueType.Vector2; } }
         public override ConcreteSlotValueType concreteValueType { get { return ConcreteSlotValueType.Vector2; } }
+
+
+        public override void CopyValuesFrom(MaterialSlot foundSlot)
+        {
+            var slot = foundSlot as Vector2MaterialSlot;
+            if (slot != null)
+                value = slot.value;
+        }
     }
 }

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/Vector3MaterialSlot.cs

             return precision + "3 (" + value.x + "," + value.y + "," + value.z + ")";
         }
 
+        public override void AddDefaultProperty(PropertyCollector properties, GenerationMode generationMode)
+        {
+            if (!generationMode.IsPreview())
+                return;
+
+            var matOwner = owner as AbstractMaterialNode;
+            if (matOwner == null)
+                throw new Exception(string.Format("Slot {0} either has no owner, or the owner is not a {1}", this, typeof(AbstractMaterialNode)));
+
+            var property = new Vector3ShaderProperty()
+            {
+                overrideReferenceName = matOwner.GetVariableNameForSlot(id),
+                generatePropertyBlock = false,
+                value = value
+            };
+            properties.AddShaderProperty(property);
+        }
+
         public override PreviewProperty GetPreviewProperty(string name)
         {
             var pp = new PreviewProperty
 
         public override SlotValueType valueType { get { return SlotValueType.Vector3; } }
         public override ConcreteSlotValueType concreteValueType { get { return ConcreteSlotValueType.Vector3; } }
+
+        public override void CopyValuesFrom(MaterialSlot foundSlot)
+        {
+            var slot = foundSlot as Vector3MaterialSlot;
+            if (slot != null)
+                value = slot.value;
+        }
     }
 }

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/Vector4MaterialSlot.cs

             return precision + "4 (" + value.x + "," + value.y + "," + value.z + "," + value.w + ")";
         }
 
+        public override void AddDefaultProperty(PropertyCollector properties, GenerationMode generationMode)
+        {
+            if (!generationMode.IsPreview())
+                return;
+
+            var matOwner = owner as AbstractMaterialNode;
+            if (matOwner == null)
+                throw new Exception(string.Format("Slot {0} either has no owner, or the owner is not a {1}", this, typeof(AbstractMaterialNode)));
+
+            var property = new Vector4ShaderProperty()
+            {
+                overrideReferenceName = matOwner.GetVariableNameForSlot(id),
+                generatePropertyBlock = false,
+                value = value
+            };
+            properties.AddShaderProperty(property);
+        }
+
         public override PreviewProperty GetPreviewProperty(string name)
         {
             var pp = new PreviewProperty
 
         public override SlotValueType valueType { get { return SlotValueType.Vector4; } }
         public override ConcreteSlotValueType concreteValueType { get { return ConcreteSlotValueType.Vector4; } }
+
+
+        public override void CopyValuesFrom(MaterialSlot foundSlot)
+        {
+            var slot = foundSlot as Vector4MaterialSlot;
+            if (slot != null)
+                value = slot.value;
+        }
     }
 }

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/ViewDirectionMaterialSlot.cs

 namespace UnityEditor.ShaderGraph
 {
     [Serializable]
-    public class ViewDirectionMaterialSlot : Vector3MaterialSlot, IMayRequireViewDirection
+    public class ViewDirectionMaterialSlot : SpaceMaterialSlot, IMayRequireViewDirection
-        private CoordinateSpace m_Space = CoordinateSpace.World;
-
-        public CoordinateSpace space
-        {
-            get { return m_Space; }
-            set { m_Space = value; }
-        }
+        public ViewDirectionMaterialSlot()
+        {}
-            : base(slotId, displayName, shaderOutputName, SlotType.Input, Vector3.zero, shaderStage, hidden)
-        {
-            this.space = space;
-        }
+            : base(slotId, displayName, shaderOutputName, space, shaderStage, hidden)
+        {}
 
         public override string GetDefaultValue(GenerationMode generationMode)
         {

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/AbstractMaterialNode.cs

 
         public virtual void CollectShaderProperties(PropertyCollector properties, GenerationMode generationMode)
         {
-            if (!generationMode.IsPreview())
-                return;
-
             foreach (var inputSlot in GetInputSlots<MaterialSlot>())
             {
                 var edges = owner.GetEdges(inputSlot.slotReference);
         private ConcreteSlotValueType ConvertDynamicInputTypeToConcrete(IEnumerable<ConcreteSlotValueType> inputTypes)
         {
             var concreteSlotValueTypes = inputTypes as IList<ConcreteSlotValueType> ?? inputTypes.ToList();
-         
+
             var inputTypesDistinct = concreteSlotValueTypes.Distinct().ToList();
             switch (inputTypesDistinct.Count)
             {
 
         public override void ValidateNode()
         {
-            var isInError = false; 
+            var isInError = false;
 
             // all children nodes needs to be updated first
             // so do that here
 
                 var edges = owner.GetEdges(inputSlot.slotReference);
-                foreach (var edge in edges) 
+                foreach (var edge in edges)
                 {
                     var fromSocketRef = edge.outputSlot;
                     var outputNode = owner.GetNodeFromGuid(fromSocketRef.nodeGuid);
         {
             return false;
         }
-        
+
         public static string GetSlotDimension(ConcreteSlotValueType slotValue)
         {
             switch (slotValue)
 
             if (foundSlot == null)
                 return;
-            
-            // now copy over values :)
-            if (addingSlot is DynamicVectorMaterialSlot && foundSlot is DynamicVectorMaterialSlot)
-                (addingSlot as DynamicVectorMaterialSlot).value = (foundSlot as DynamicVectorMaterialSlot).value;
-            if (addingSlot is Vector1MaterialSlot && foundSlot is Vector1MaterialSlot)
-                (addingSlot as Vector1MaterialSlot).value = (foundSlot as Vector1MaterialSlot).value;
-            if (addingSlot is Vector2MaterialSlot && foundSlot is Vector2MaterialSlot)
-                (addingSlot as Vector2MaterialSlot).value = (foundSlot as Vector2MaterialSlot).value;
-            if (addingSlot is Vector3MaterialSlot && foundSlot is Vector3MaterialSlot)
-                (addingSlot as Vector3MaterialSlot).value = (foundSlot as Vector3MaterialSlot).value;
-            if (addingSlot is Vector4MaterialSlot && foundSlot is Vector4MaterialSlot)
-                (addingSlot as Vector4MaterialSlot).value = (foundSlot as Vector4MaterialSlot).value;
+
+            addingSlot.CopyValuesFrom(foundSlot);
         }
     }
 }

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/Input/Texture/TextureNode.cs

 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Reflection;
+using UnityEngine;
-    /*  [Title("Input/Texture/Texture")]
-      public class TextureNode : PropertyNode, IGeneratesBodyCode, IMayRequireMeshUV
-      {
-          protected const string kUVSlotName = "UV";
-          protected const string kOutputSlotRGBAName = "RGBA";
-          protected const string kOutputSlotRName = "R";
-          protected const string kOutputSlotGName = "G";
-          protected const string kOutputSlotBName = "B";
-          protected const string kOutputSlotAName = "A";
-          public const int UvSlotId = 0;
-          public const int OutputSlotRgbaId = 1;
-          public const int OutputSlotRId = 2;
-          public const int OutputSlotGId = 3;
-          public const int OutputSlotBId = 4;
-          public const int OutputSlotAId = 5;
-
-          [SerializeField]
-          private string m_SerializedTexture;
-
-          [SerializeField]
-          private TextureType m_TextureType;
-
-          [Serializable]
-          private class TextureHelper
-          {
-              public Texture texture;
-          }
-
-          public override bool hasPreview { get { return true; } }
-
-  #if UNITY_EDITOR
-          public Texture defaultTexture
-          {
-              get
-              {
-                  if (string.IsNullOrEmpty(m_SerializedTexture))
-                      return null;
-
-                  var tex = new TextureHelper();
-                  EditorJsonUtility.FromJsonOverwrite(m_SerializedTexture, tex);
-                  return tex.texture;
-              }
-              set
-              {
-                  if (defaultTexture == value)
-                      return;
-
-                  var tex = new TextureHelper();
-                  tex.texture = value;
-                  m_SerializedTexture = EditorJsonUtility.ToJson(tex, true);
-
-                  if (onModified != null)
-                  {
-                      onModified(this, ModificationScope.Node);
-                  }
-              }
-          }
-  #else
-          public Texture defaultTexture {get; set; }
-  #endif
-
-          public TextureType textureType
-          {
-              get { return m_TextureType; }
-              set
-              {
-                  if (m_TextureType == value)
-                      return;
-
-
-                  m_TextureType = value;
-                  if (onModified != null)
-                  {
-                      onModified(this, ModificationScope.Graph);
-                  }
-              }
-          }
-
-          public TextureNode()
-          {
-              name = "Texture";
-              UpdateNodeAfterDeserialization();
-          }
-
-          public sealed override void UpdateNodeAfterDeserialization()
-          {
-              AddSlot(new MaterialSlot(OutputSlotRgbaId, kOutputSlotRGBAName, kOutputSlotRGBAName, SlotType.Output, SlotValueType.Vector4, Vector4.zero));
-              AddSlot(new MaterialSlot(OutputSlotRId, kOutputSlotRName, kOutputSlotRName, SlotType.Output, SlotValueType.Vector1, Vector4.zero));
-              AddSlot(new MaterialSlot(OutputSlotGId, kOutputSlotGName, kOutputSlotGName, SlotType.Output, SlotValueType.Vector1, Vector4.zero));
-              AddSlot(new MaterialSlot(OutputSlotBId, kOutputSlotBName, kOutputSlotBName, SlotType.Output, SlotValueType.Vector1, Vector4.zero));
-              AddSlot(new MaterialSlot(OutputSlotAId, kOutputSlotAName, kOutputSlotAName, SlotType.Output, SlotValueType.Vector1, Vector4.zero));
-              AddSlot(new MaterialSlot(UvSlotId, kUVSlotName, kUVSlotName, SlotType.Input, SlotValueType.Vector2, Vector4.zero, false));
-              RemoveSlotsNameNotMatching(validSlots);
-          }
-
-          protected int[] validSlots
-          {
-              get { return new[] {OutputSlotRgbaId, OutputSlotRId, OutputSlotGId, OutputSlotBId, OutputSlotAId, UvSlotId}; }
-          }
-
-          // Node generations
-          public virtual void GenerateNodeCode(ShaderGenerator visitor, GenerationMode generationMode)
-          {
-              var uvSlot = FindInputSlot<MaterialSlot>(UvSlotId);
-              if (uvSlot == null)
-                  return;
-
-              var uvName = string.Format("{0}.xy", UVChannel.uv0.GetUVName());
-              var edges = owner.GetEdges(uvSlot.slotReference).ToList();
-
-              if (edges.Count > 0)
-              {
-                  var edge = edges[0];
-                  var fromNode = owner.GetNodeFromGuid<AbstractMaterialNode>(edge.outputSlot.nodeGuid);
-                  uvName = ShaderGenerator.AdaptNodeOutput(fromNode, edge.outputSlot.slotId, ConcreteSlotValueType.Vector2, true);
-              }
-
-              string body = "tex2D (" + propertyName + ", " + uvName + ")";
-              if (m_TextureType == TextureType.Bump)
-                  body = precision + "4(UnpackNormal(" + body + "), 0)";
-              visitor.AddShaderChunk(precision + "4 " + GetVariableNameForNode() + " = " + body + ";", true);
-          }
-
-          public override string GetVariableNameForSlot(int slotId)
-          {
-              string slotOutput;
-              switch (slotId)
-              {
-                  case OutputSlotRId:
-                      slotOutput = ".r";
-                      break;
-                  case OutputSlotGId:
-                      slotOutput = ".g";
-                      break;
-                  case OutputSlotBId:
-                      slotOutput = ".b";
-                      break;
-                  case OutputSlotAId:
-                      slotOutput = ".a";
-                      break;
-                  default:
-                      slotOutput = "";
-                      break;
-              }
-              return GetVariableNameForNode() + slotOutput;
-          }
-
-          public override void CollectPreviewMaterialProperties(List<PreviewProperty> properties)
-          {
-              properties.Add(GetPreviewProperty());
-          }
-
-          // Properties
-          public override void GeneratePropertyBlock(PropertyGenerator visitor, GenerationMode generationMode)
-          {
-              visitor.AddShaderProperty(
-                  new TexturePropertyChunk(
-                      propertyName,
-                      description,
-                      defaultTexture, m_TextureType,
-                      PropertyChunk.HideState.Visible,
-                      exposedState == ExposedState.Exposed ?
-                          TexturePropertyChunk.ModifiableState.Modifiable
-                          : TexturePropertyChunk.ModifiableState.NonModifiable));
-          }
-
-          public override void GeneratePropertyUsages(ShaderGenerator visitor, GenerationMode generationMode)
-          {
-              visitor.AddShaderChunk("sampler2D " + propertyName + ";", true);
-          }
-
-          /*
-              public override bool DrawSlotDefaultInput(Rect rect, Slot inputSlot)
-              {
-                  var uvSlot = FindInputSlot(kUVSlotName);
-                  if (uvSlot != inputSlot)
-                      return base.DrawSlotDefaultInput(rect, inputSlot);
-
-
-                  var rectXmax = rect.xMax;
-                  rect.x = rectXmax - 70;
-                  rect.width = 70;
-
-                  EditorGUI.DrawRect(rect, new Color(0.0f, 0.0f, 0.0f, 0.7f));
-                  GUI.Label(rect, "From Mesh");
-
-                  return false;
-              }
-              *
-
-          public override PreviewProperty GetPreviewProperty()
-          {
-              return new PreviewProperty
-                     {
-                         m_Name = propertyName,
-                         m_PropType = PropertyType.Texture,
-                         m_Texture = defaultTexture
-                     };
-          }
-
-          public override PropertyType propertyType { get { return PropertyType.Texture; } }
-
-          public bool RequiresMeshUV(UVChannel channel)
-          {
-              if (channel != UVChannel.uv0)
-              {
-                  return false;
-              }
-
-              var uvSlot = FindInputSlot<MaterialSlot>(UvSlotId);
-              if (uvSlot == null)
-                  return true;
-
-              var edges = owner.GetEdges(uvSlot.slotReference).ToList();
-              return edges.Count == 0;
-          }
-      }*/
 }

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/PropertyNode.cs

 namespace UnityEditor.ShaderGraph
 {
     [Title("Property Node")]
-    public class PropertyNode : AbstractMaterialNode, IGeneratesBodyCode, IMayRequireMeshUV, IOnAssetEnabled
+    public class PropertyNode : AbstractMaterialNode, IGeneratesBodyCode, IOnAssetEnabled
-        [SerializeField] private string m_PropertyGuidSerialized;
+        [SerializeField]
+        private string m_PropertyGuidSerialized;
-
-        public const int ROutputSlotId = 1;
-        public const int GOutputSlotId = 2;
-        public const int BOutputSlotId = 3;
-        public const int AOutputSlotId = 4;
-        public const int TOutputSlotId = 5;
-
-        public const int UVInput = 6;
 
         public PropertyNode()
         {
             }
             else if (property is TextureShaderProperty)
             {
-                AddSlot(new Vector4MaterialSlot(OutputSlotId, "RGBA", "RGBA", SlotType.Output, Vector4.zero));
-                AddSlot(new Vector1MaterialSlot(ROutputSlotId, "R", "R", SlotType.Output, 0));
-                AddSlot(new Vector1MaterialSlot(GOutputSlotId, "G", "G", SlotType.Output, 0));
-                AddSlot(new Vector1MaterialSlot(BOutputSlotId, "B", "B", SlotType.Output, 0));
-                AddSlot(new Vector1MaterialSlot(AOutputSlotId, "A", "A", SlotType.Output, 0));
-                AddSlot(new Texture2DMaterialSlot(TOutputSlotId, "T", "T", SlotType.Output));
-                AddSlot(new Vector2MaterialSlot(UVInput, "UV", "UV", SlotType.Input, Vector4.zero));
-                RemoveSlotsNameNotMatching(new[] {OutputSlotId, ROutputSlotId, GOutputSlotId, BOutputSlotId, AOutputSlotId, TOutputSlotId, UVInput});
+                AddSlot(new Texture2DMaterialSlot(OutputSlotId, "T", "T", SlotType.Output));
+                RemoveSlotsNameNotMatching(new[] {OutputSlotId});
             }
         }
 
                     , property.referenceName);
                 visitor.AddShaderChunk(result, true);
             }
-            else if (property is TextureShaderProperty)
-            {
-                //UV input slot
-                var uvSlot = FindInputSlot<MaterialSlot>(UVInput);
-                var uvName = string.Format("{0}.xy", UVChannel.uv0.GetUVName());
-                var edgesUV = owner.GetEdges(uvSlot.slotReference);
-                if (edgesUV.Any())
-                    uvName = GetSlotValue(UVInput, generationMode);
-
-                //Sampler input slot
-                var result = string.Format("{0}4 {1} = UNITY_SAMPLE_TEX2D({2},{3});"
-                        , precision
-                        , GetVariableNameForSlot(OutputSlotId)
-                        , property.referenceName
-                        , uvName);
-                visitor.AddShaderChunk(result, true);
-                visitor.AddShaderChunk(string.Format("{0} {1} = {2}.r;", precision, GetVariableNameForSlot(ROutputSlotId), GetVariableNameForSlot(OutputSlotId)), true);
-                visitor.AddShaderChunk(string.Format("{0} {1} = {2}.g;", precision, GetVariableNameForSlot(GOutputSlotId), GetVariableNameForSlot(OutputSlotId)), true);
-                visitor.AddShaderChunk(string.Format("{0} {1} = {2}.b;", precision, GetVariableNameForSlot(BOutputSlotId), GetVariableNameForSlot(OutputSlotId)), true);
-                visitor.AddShaderChunk(string.Format("{0} {1} = {2}.a;", precision, GetVariableNameForSlot(AOutputSlotId), GetVariableNameForSlot(OutputSlotId)), true);
-            }
-        }
-
-        public bool RequiresMeshUV(UVChannel channel)
-        {
-            if (channel != UVChannel.uv0)
-                return false;
-
-            var uvSlot = FindInputSlot<MaterialSlot>(UVInput);
-            if (uvSlot == null)
-                return true;
-
-            var edges = owner.GetEdges(uvSlot.slotReference).ToList();
-            return edges.Count == 0;
         }
 
         [PropertyControl]
 
         public override string GetVariableNameForSlot(int slotId)
         {
-            if (slotId != TOutputSlotId)
+            var graph = owner as AbstractMaterialGraph;
+            var property = graph.properties.FirstOrDefault(x => x.guid == propertyGuid);
+
+            if (!(property is TextureShaderProperty))
-            var graph = owner as AbstractMaterialGraph;
-            var property = graph.properties.FirstOrDefault(x => x.guid == propertyGuid);
             return property.referenceName;
         }
 

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/SubGraph/SubGraphNode.cs

 using UnityEditor;
 #endif
 using UnityEditor.Graphing;
+using UnityEditor.Graphs;
 
 namespace UnityEditor.ShaderGraph
 {
                             prop.overrideReferenceName = fromNode.GetSlotValue(slot.id, generationMode);
                     }
                 }
-                else if (inSlot.concreteValueType == ConcreteSlotValueType.Texture2D)
+                else if (inSlot is Texture2DInputMaterialSlot)
-                    prop.overrideReferenceName = Texture2DMaterialSlot.DefaultTextureName;
+                    prop.overrideReferenceName =  ((Texture2DInputMaterialSlot)inSlot).GetDefaultValue(generationMode);
                 }
                 else
                 {

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Inspector/IMGUISlotEditorView.cs

 using UnityEngine.Experimental.UIElements;
 using UnityEditor.Graphing;
 using UnityEditor.ShaderGraph;
+using UnityEngine;
 
 namespace UnityEditor.ShaderGraph.Drawing.Inspector
 {
                 var dynSlot = slot as Vector2MaterialSlot;
                 dynSlot.value = EditorGUILayout.Vector2Field(slot.displayName, dynSlot.value);
             }
-            
+
             if (slot is Vector3MaterialSlot)
             {
                 var dynSlot = slot as Vector3MaterialSlot;
             {
                 var dynSlot = slot as Vector4MaterialSlot;
                 dynSlot.value = EditorGUILayout.Vector4Field(slot.displayName, dynSlot.value);
+            }
+
+            if (slot is Texture2DInputMaterialSlot)
+            {
+                var dynslot = slot as Texture2DInputMaterialSlot;
+                dynslot.texture = EditorGUILayout.MiniThumbnailObjectField(new GUIContent("Texture"), dynslot.texture, typeof(Texture), null) as Texture;
             }
             return EditorGUI.EndChangeCheck();
         }

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Views/MaterialNodeView.cs

         void UpdatePreviewExpandedState(bool expanded)
         {
             node.previewExpanded = expanded;
+            if (m_PreviewContainer == null)
+                return;
             if (expanded)
             {
                 m_PreviewContainer.AddToClassList("expanded");
         void UpdateTitle()
         {
             var subGraphNode = node as SubGraphNode;
-            if (subGraphNode != null)
+            if (subGraphNode != null && subGraphNode.subGraphAsset != null)
                 title = subGraphNode.subGraphAsset.name;
             else
                 title = node.name;

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/SpaceMaterialSlot.cs

+using System;
+using UnityEditor.Graphing;
+using UnityEngine;
+
+namespace UnityEditor.ShaderGraph
+{
+    [Serializable]
+    public abstract class SpaceMaterialSlot : Vector3MaterialSlot
+    {
+        [SerializeField]
+        private CoordinateSpace m_Space = CoordinateSpace.World;
+
+        public CoordinateSpace space
+        {
+            get { return m_Space; }
+            set { m_Space = value; }
+        }
+
+        protected SpaceMaterialSlot()
+        {}
+
+        protected SpaceMaterialSlot(int slotId, string displayName, string shaderOutputName, CoordinateSpace space,
+            ShaderStage shaderStage = ShaderStage.Dynamic, bool hidden = false)
+            : base(slotId, displayName, shaderOutputName, SlotType.Input, Vector3.zero, shaderStage, hidden)
+        {
+            this.space = space;
+        }
+
+        public override void CopyValuesFrom(MaterialSlot foundSlot)
+        {
+            var slot = foundSlot as NormalMaterialSlot;
+            if (slot != null)
+                space = slot.space;
+        }
+    }
+}

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/SpaceMaterialSlot.cs.meta

+fileFormatVersion: 2
+guid: 66199806246c45e493afdfc09208cbdc
+timeCreated: 1509290088

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/Texture2DInputMaterialSlot.cs

+using System;
+using UnityEditor.Graphing;
+using UnityEngine;
+
+namespace UnityEditor.ShaderGraph
+{
+    [Serializable]
+    public class Texture2DInputMaterialSlot : Texture2DMaterialSlot
+    {
+        [SerializeField]
+        private SerializableTexture m_Texture = new SerializableTexture();
+
+        public Texture texture
+        {
+            get { return m_Texture.texture; }
+            set { m_Texture.texture = value; }
+        }
+
+        public Texture2DInputMaterialSlot()
+        {}
+
+        public Texture2DInputMaterialSlot(
+            int slotId,
+            string displayName,
+            string shaderOutputName,
+            ShaderStage shaderStage = ShaderStage.Dynamic,
+            bool hidden = false)
+            : base(slotId, displayName, shaderOutputName, SlotType.Input, shaderStage, hidden)
+        {}
+
+        public override string GetDefaultValue(GenerationMode generationMode)
+        {
+            var matOwner = owner as AbstractMaterialNode;
+            if (matOwner == null)
+                throw new Exception(string.Format("Slot {0} either has no owner, or the owner is not a {1}", this, typeof(AbstractMaterialNode)));
+
+            return matOwner.GetVariableNameForSlot(id);
+        }
+
+        public override void AddDefaultProperty(PropertyCollector properties, GenerationMode generationMode)
+        {
+            var matOwner = owner as AbstractMaterialNode;
+            if (matOwner == null)
+                throw new Exception(string.Format("Slot {0} either has no owner, or the owner is not a {1}", this, typeof(AbstractMaterialNode)));
+
+            var prop = new TextureShaderProperty();
+            prop.overrideReferenceName = matOwner.GetVariableNameForSlot(id);
+            prop.modifiable = false;
+            prop.generatePropertyBlock = true;
+            prop.value.texture = texture;
+            properties.AddShaderProperty(prop);
+        }
+
+        public override PreviewProperty GetPreviewProperty(string name)
+        {
+            var pp = new PreviewProperty
+            {
+                m_Name = name,
+                m_PropType = PropertyType.Texture,
+                m_Texture = texture
+            };
+            return pp;
+        }
+
+        public override void CopyValuesFrom(MaterialSlot foundSlot)
+        {
+            var slot = foundSlot as Texture2DInputMaterialSlot;
+            if (slot != null)
+                m_Texture = slot.m_Texture;
+        }
+    }
+}

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/Texture2DInputMaterialSlot.cs.meta

+fileFormatVersion: 2
+guid: ebeb3a21d05d49caa5d3318fb49b7612
+timeCreated: 1509276977