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

@@ -53,6 +53,9 @@ NodeItem::Type NodeItem::type(const std::string &type_str)
   if (type_str == "EDF") {
     return Type::EDF;
   }
+  if (type_str == "displacementshader") {
+    return Type::Displacementshader;
+  }
   if (type_str == "surfaceshader") {
     return Type::SurfaceShader;
   }
@@ -94,6 +97,8 @@ std::string NodeItem::type(Type type)
       return "BSDF";
     case Type::EDF:
       return "EDF";
+    case Type::Displacementshader:
+      return "displacementshader";
     case Type::SurfaceShader:
       return "surfaceshader";
     case Type::Material:

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

@@ -39,6 +39,7 @@ class NodeItem {
      * NOTE: There are only supported types */
     BSDF,
     EDF,
+    Displacementshader,
     SurfaceShader,
     Material,
   };

source/blender/nodes/shader/nodes/node_shader_vector_displacement.cc

@@ -41,6 +41,21 @@ static int gpu_shader_vector_displacement(GPUMaterial *mat,
   }
 }
 
+NODE_SHADER_MATERIALX_BEGIN
+{
+  /* NOTE: Space feature don't have an implementation in MaterialX.*/
+  NodeItem midlevel = get_input_value("midlevel", NodeItem::Type::Float);
+  NodeItem vector = get_input_link("Vector", NodeItem::Type::Vector3);
+  NodeItem scale = get_input_value("Scale", NodeItem::Type::Float);
+
+  NodeItem res = create_node("displacement", NodeItem::Type::Displacementshader);
+  res.set_input("displacement", vector);
+  res.set_input("scale", scale);
+
+  return res;
+}
+NODE_SHADER_MATERIALX_END
+
 }  // namespace blender::nodes::node_shader_vector_displacement_cc
 
 /* node type definition */
@@ -55,6 +70,7 @@ void register_node_type_sh_vector_displacement()
   ntype.declare = file_ns::node_declare;
   ntype.initfunc = file_ns::node_shader_init_vector_displacement;
   ntype.gpu_fn = file_ns::gpu_shader_vector_displacement;
+  ntype.materialx_fn = file_ns::node_shader_materialx;
 
   nodeRegisterType(&ntype);
 }