source/blender/nodes/shader/nodes/node_shader_subsurface_scattering.cc

@@ -77,6 +77,33 @@ static void node_shader_update_subsurface_scattering(bNodeTree *ntree, bNode *no
   }
 }
 
+NODE_SHADER_MATERIALX_BEGIN
+#ifdef WITH_MATERIALX
+{
+  /* NOTE: IOR and Subsurface Method isn't supported for this node in MaterialX. */
+  if (to_type_ != NodeItem::Type::BSDF) {
+    return empty();
+  }
+
+  NodeItem color = get_input_value("Color", NodeItem::Type::Color3);
+  NodeItem scale = get_input_value("Scale", NodeItem::Type::Float);
+  NodeItem radius = get_input_value("Radius", NodeItem::Type::Vector3);
+  NodeItem anisotropy = get_input_value("Anisotropy", NodeItem::Type::Float);
+  NodeItem normal = get_input_link("Normal", NodeItem::Type::Vector3);
+
+  NodeItem res = create_node("subsurface_bsdf", NodeItem::Type::BSDF);
+  res.set_input("weight", val(1.0f));
+  res.set_input("color", color);
+  res.set_input("radius", radius * scale);
+  res.set_input("anisotropy", anisotropy);
+  if (normal) {
+    res.set_input("normal", normal);
+  }
+  return res;
+}
+#endif
+NODE_SHADER_MATERIALX_END
+
 }  // namespace blender::nodes::node_shader_subsurface_scattering_cc
 
 /* node type definition */
@@ -95,6 +122,7 @@ void register_node_type_sh_subsurface_scattering()
   ntype.initfunc = file_ns::node_shader_init_subsurface_scattering;
   ntype.gpu_fn = file_ns::node_shader_gpu_subsurface_scattering;
   ntype.updatefunc = file_ns::node_shader_update_subsurface_scattering;
+  ntype.materialx_fn = file_ns::node_shader_materialx;
 
   nodeRegisterType(&ntype);
 }