[FIX]#105 properly adapt input to master node when going from v2->v3/4

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Util/GraphUtil.cs

                         var foundEdges = graph.GetEdges(input.slotReference).ToArray();
                         if (foundEdges.Any())
                         {
-                            var outputRef = foundEdges[0].outputSlot;
-                            var fromNode = graph.GetNodeFromGuid<AbstractMaterialNode>(outputRef.nodeGuid);
-                            surfaceDescriptionFunction.AddShaderChunk(string.Format("surface.{0} = {1};", NodeUtils.GetHLSLSafeName(input.shaderOutputName), fromNode.GetVariableNameForSlot(outputRef.slotId)), true);
+                            surfaceDescriptionFunction.AddShaderChunk(string.Format("surface.{0} = {1};", NodeUtils.GetHLSLSafeName(input.shaderOutputName), masterNode.GetSlotValue(input.id, mode)), true);
                         }
                         else
                         {
                 else if (masterNode.hasPreview)
                 {
                     foreach (var slot in masterNode.GetOutputSlots<MaterialSlot>())
-                        surfaceDescriptionFunction.AddShaderChunk(string.Format("surface.{0} = {1};", NodeUtils.GetHLSLSafeName(slot.shaderOutputName), masterNode.GetVariableNameForSlot(slot.id)), true);
+                        surfaceDescriptionFunction.AddShaderChunk(string.Format("surface.{0} = {1};", NodeUtils.GetHLSLSafeName(slot.shaderOutputName), masterNode.GetSlotValue(slot.id, mode)), true);
                 }
             }
 

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Util/ShaderGenerator.cs

 
         private const string kErrorString = @"ERROR!";
 
-        public static string AdaptNodeOutput(AbstractMaterialNode node, int outputSlotId, ConcreteSlotValueType convertToType, bool textureSampleUVHack = false)
+        public static string AdaptNodeOutput(AbstractMaterialNode node, int outputSlotId, ConcreteSlotValueType convertToType)
         {
             var outputSlot = node.FindOutputSlot<MaterialSlot>(outputSlotId);