Fix compilation error in ExportTextureMasterNode

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Templates/ExportTexture.template

 	
 	SubShader 
 	{
-		Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" }
+		Tags { "Queue"="Geometry" "IgnoreProjector"="True" "RenderType"="Opaque" }
-		Blend SrcAlpha OneMinusSrcAlpha
+		Blend One Zero
 		
 		Pass 
 		{
 			#include "UnityCG.cginc"
 
+${ShaderPropertyUsages}
+
-				float2 uv : TEXCOORD0;
+${ShaderInputs}
-			sampler2D ${ShaderTextureName};
-			float4 ${ShaderTextureName}_ST;
+${ShaderFunctions}
-				o.uv = TRANSFORM_TEX(v.texcoord, ${ShaderTextureName});
+${VertexShaderBody}
-				half4 col = tex2D(${ShaderTextureName}, IN.uv);
-				return col;
+${PixelShaderBody}
 			}
 			ENDCG
 		}

MaterialGraphProject/Assets/UnityShaderEditor/Runtime/SurfaceModel/ExportTextureMasterNode.cs

 
         public override string GetFullShader(GenerationMode mode, out List<PropertyGenerator.TextureInfo> configuredTextures)
         {
-            /*
+            
-            string templateLocation = ShaderGenerator.GetTemplatePath("2DPreview.template");
+            string templateLocation = ShaderGenerator.GetTemplatePath("ExportTexture.template");
             if (!File.Exists(templateLocation))
             {
                 configuredTextures = new List<PropertyGenerator.TextureInfo>();
 
             //shaderBodyVisitor.AddShaderChunk("return " + ShaderGenerator.AdaptNodeOutputForPreview(this, GetOutputSlots<MaterialSlot>().First().id) + ";", true);
             //shaderBodyVisitor.AddShaderChunk("return " + AdaptNodeInputForPreview(this, ColorSlotId) + ";", true);
-            shaderBodyVisitor.AddShaderChunk("return " + GetVariableNameForSlot(GetSlotReference(ColorSlotId).slotId) + ";", true);
+            //shaderBodyVisitor.AddShaderChunk("return " + GetVariableNameForSlot(GetSlotReference(ColorSlotId).slotId) + ";", true);
+
+            var inputSlot = GetInputSlots<MaterialSlot>().First();
+            var edges = owner.GetEdges(inputSlot.slotReference);
+            if (edges.Count() > 0)
+            {
+                var outputRef = edges.First().outputSlot;
+                var fromNode = owner.GetNodeFromGuid<AbstractMaterialNode>(outputRef.nodeGuid);
+                shaderBodyVisitor.AddShaderChunk("return " + fromNode.GetVariableNameForSlot(outputRef.slotId) + ";", true);
+            }
+            else
+            {
+                shaderBodyVisitor.AddShaderChunk("return float4(1.0, 1.0, 1.0, 1.0);", true);
+            }
-           
-
             ListPool<INode>.Release(activeNodeList);
 
             template = template.Replace("${ShaderName}", shaderName);
 
             configuredTextures = shaderPropertiesVisitor.GetConfiguredTexutres();
             return Regex.Replace(template, @"\r\n|\n\r|\n|\r", Environment.NewLine);
-            */
+            
-            
+            /*
             string templateLocation = ShaderGenerator.GetTemplatePath("ExportTexture.template");
 
             if (!File.Exists(templateLocation))
             ListPool<INode>.Release(activeNodeList);
             
             return Regex.Replace(template, @"\r\n|\n\r|\n|\r", Environment.NewLine);
-            
+            */
         }
     }
 }