source/blender/nodes/shader/materialx/nodes/blackbody.cc

@@ -8,15 +8,11 @@ namespace blender::nodes::materialx {
 
 NodeItem BlackbodyNodeParser::compute()
 {
-  /* This node doesn't have an implementation in MaterialX 1.38.6.
-   * It's added in MaterialX 1.38.8. Uncomment this code after switching to 1.38.8.
-   * 
-   * NodeItem temperature = get_input_value("Temperature", NodeItem::Type::Float);
+  NodeItem temperature = get_input_value("Temperature", NodeItem::Type::Float);
 
-   * NodeItem res = create_node("blackbody", NodeItem::Type::Color3);
-   * res.set_input("temperature", temperature);
-   * return res; */
-  return empty();
+  NodeItem res = create_node("blackbody", NodeItem::Type::Color3);
+  res.set_input("temperature", temperature);
+  return res; 
 }
 
 }  // namespace blender::nodes::materialx

source/blender/nodes/shader/materialx/nodes/node_item.cc

@@ -21,7 +21,7 @@ NodeItem::Type NodeItem::type(const std::string &type_str)
     return Type::Filename;
   }
   if (type_str == "boolean") {
-    return Type::Bool;
+    return Type::Boolean;
   }
   if (type_str == "integer") {
     return Type::Integer;
@@ -67,7 +67,7 @@ std::string NodeItem::type(Type type)
       return "string";
     case Type::Filename:
       return "filename";
-    case Type::Bool:
+    case Type::Boolean:
       return "boolean";
     case Type::Integer:
       return "integer";
@@ -638,7 +638,7 @@ void NodeItem::set_input(const std::string &in_name, const NodeItem &item)
       case Type::String:
         set_input(in_name, item.value->asA<std::string>(), item_type);
         break;
-      case Type::Bool:
+      case Type::Boolean:
         set_input(in_name, item.value->asA<bool>(), item_type);
         break;
       case Type::Integer:

source/blender/nodes/shader/materialx/nodes/node_item.h

@@ -17,7 +17,7 @@ class NodeItem {
     /* Value types */
     String,
     Filename,
-    Bool,
+    Boolean,
     Integer,
     /* Block of arithmetic types. Ordered by type cast */
     Float,

source/blender/nodes/shader/materialx/nodes/rgb_to_bw.cc

@@ -8,9 +8,9 @@ namespace blender::nodes::materialx {
 
 NodeItem RGBToBWNodeParser::compute()
 {
-  NodeItem color = get_input_value("Color", NodeItem::Type::Color3);
+  NodeItem color = get_input_value("Color", NodeItem::Type::Color4);
 
-  NodeItem res = create_node("luminance", NodeItem::Type::Color3);
+  NodeItem res = create_node("luminance", NodeItem::Type::Color4);
   res.set_input("in", color);
   return res; 
 }