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

@@ -25,12 +25,10 @@ MaterialX::DocumentPtr export_to_materialx(Depsgraph *depsgraph, Material *mater
   if (material->use_nodes) {
     material->nodetree->ensure_topology_cache();
     bNode *output_node = ntreeShaderOutputNode(material->nodetree, SHD_OUTPUT_ALL);
-    OutputMaterialNodeParser(doc.get(), depsgraph, material, output_node, NodeItem::Type::Material)
+    OutputMaterialNodeParser(doc.get(), depsgraph, material, output_node).compute_full();
-        .compute();
   }
   else {
-    OutputMaterialNodeParser(doc.get(), depsgraph, material, nullptr, NodeItem::Type::Material)
+    OutputMaterialNodeParser(doc.get(), depsgraph, material, nullptr).compute_default();
-        .compute_default();
   }
 
   CLOG_INFO(LOG_MATERIALX_SHADER,

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

@@ -6,7 +6,17 @@
 
 namespace blender::nodes::materialx {
 
-NodeItem BSDFPrincipledNodeParser::compute()
+NodeItem BSDFPrincipledNodeParser::compute_bsdf()
+{
+  return empty();
+}
+
+NodeItem BSDFPrincipledNodeParser::compute_edf()
+{
+  return empty();
+}
+
+NodeItem BSDFPrincipledNodeParser::compute_surface()
 {
   /* Getting required inputs
    * Note: if some inputs are not needed they won't be taken */

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

@@ -12,6 +12,86 @@ namespace blender::nodes::materialx {
 
 NodeItem::NodeItem(MaterialX::GraphElement *graph) : graph_(graph) {}
 
+NodeItem::Type NodeItem::type(const std::string &type_str)
+{
+  if (type_str == "string") {
+    return Type::String;
+  }
+  if (type_str == "filename") {
+    return Type::Filename;
+  }
+  if (type_str == "integer") {
+    return Type::Integer;
+  }
+  if (type_str == "float") {
+    return Type::Float;
+  }
+  if (type_str == "vector2") {
+    return Type::Vector2;
+  }
+  if (type_str == "vector3") {
+    return Type::Vector3;
+  }
+  if (type_str == "vector4") {
+    return Type::Vector4;
+  }
+  if (type_str == "color3") {
+    return Type::Color3;
+  }
+  if (type_str == "color4") {
+    return Type::Color4;
+  }
+  if (type_str == "BSDF") {
+    return Type::BSDF;
+  }
+  if (type_str == "EDF") {
+    return Type::EDF;
+  }
+  if (type_str == "surfaceshader") {
+    return Type::SurfaceShader;
+  }
+  if (type_str == "material") {
+    return Type::Material;
+  }
+  BLI_assert_unreachable();
+  return Type::None;
+}
+
+std::string NodeItem::type(Type type)
+{
+  switch (type) {
+    case Type::String:
+      return "string";
+    case Type::Filename:
+      return "filename";
+    case Type::Integer:
+      return "integer";
+    case Type::Float:
+      return "float";
+    case Type::Vector2:
+      return "vector2";
+    case Type::Vector3:
+      return "vector3";
+    case Type::Vector4:
+      return "vector4";
+    case Type::Color3:
+      return "color3";
+    case Type::Color4:
+      return "color4";
+    case Type::BSDF:
+      return "BSDF";
+    case Type::EDF:
+      return "EDF";
+    case Type::SurfaceShader:
+      return "surfaceshader";
+    case Type::Material:
+      return "material";
+    default:
+      BLI_assert_unreachable();
+  }
+  return "";
+}
+
 NodeItem::operator bool() const
 {
   return value || node;
@@ -562,86 +642,6 @@ void NodeItem::add_output(const std::string &name, Type out_type)
   node->addOutput(name, type(out_type));
 }
 
-NodeItem::Type NodeItem::type(const std::string &type_str)
-{
-  if (type_str == "string") {
-    return Type::String;
-  }
-  if (type_str == "filename") {
-    return Type::Filename;
-  }
-  if (type_str == "integer") {
-    return Type::Integer;
-  }
-  if (type_str == "float") {
-    return Type::Float;
-  }
-  if (type_str == "vector2") {
-    return Type::Vector2;
-  }
-  if (type_str == "vector3") {
-    return Type::Vector3;
-  }
-  if (type_str == "vector4") {
-    return Type::Vector4;
-  }
-  if (type_str == "color3") {
-    return Type::Color3;
-  }
-  if (type_str == "color4") {
-    return Type::Color4;
-  }
-  if (type_str == "BSDF") {
-    return Type::BSDF;
-  }
-  if (type_str == "EDF") {
-    return Type::EDF;
-  }
-  if (type_str == "surfaceshader") {
-    return Type::SurfaceShader;
-  }
-  if (type_str == "material") {
-    return Type::Material;
-  }
-  BLI_assert_unreachable();
-  return Type::None;
-}
-
-std::string NodeItem::type(Type type)
-{
-  switch (type) {
-    case Type::String:
-      return "string";
-    case Type::Filename:
-      return "filename";
-    case Type::Integer:
-      return "integer";
-    case Type::Float:
-      return "float";
-    case Type::Vector2:
-      return "vector2";
-    case Type::Vector3:
-      return "vector3";
-    case Type::Vector4:
-      return "vector4";
-    case Type::Color3:
-      return "color3";
-    case Type::Color4:
-      return "color4";
-    case Type::BSDF:
-      return "BSDF";
-    case Type::EDF:
-      return "EDF";
-    case Type::SurfaceShader:
-      return "surfaceshader";
-    case Type::Material:
-      return "material";
-    default:
-      BLI_assert_unreachable();
-  }
-  return "";
-}
-
 bool NodeItem::is_arithmetic(Type type)
 {
   return type >= Type::Float && type <= Type::Color4;

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

@@ -45,6 +45,9 @@ class NodeItem {
   NodeItem(MaterialX::GraphElement *graph);
   ~NodeItem() = default;
 
+  static Type type(const std::string &type_str);
+  static std::string type(Type type);
+
   /* Operators */
   operator bool() const;
   NodeItem operator+(const NodeItem &other) const;
@@ -106,8 +109,6 @@ class NodeItem {
   void add_output(const std::string &in_name, Type out_type);
 
  private:
-  static Type type(const std::string &type_str);
-  static std::string type(Type type);
   static bool is_arithmetic(Type type);
   static Type adjust_types(NodeItem &item1, NodeItem &item2);
 

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

@@ -13,22 +13,30 @@ NodeParser::NodeParser(MaterialX::GraphElement *graph,
                        const Depsgraph *depsgraph,
                        const Material *material,
                        const bNode *node,
-                       const bNodeSocket *socket_out,
+                       const bNodeSocket *socket_out)
-                       NodeItem::Type shader_type)
     : graph_(graph),
       depsgraph_(depsgraph),
       material_(material),
       node_(node),
-      socket_out_(socket_out),
+      socket_out_(socket_out)
-      shader_type_(shader_type)
 {
 }
 
-std::string NodeParser::node_name(const bNode *node, const bNodeSocket *socket_out)
+NodeItem NodeParser::compute_full()
 {
-  return MaterialX::createValidName(node->output_sockets().size() <= 1 ?
+  CLOG_INFO(LOG_MATERIALX_SHADER, 1, "%s [%d]", node_->name, node_->typeinfo->type);
-                                        std::string(node->name) :
+  NodeItem res = compute();
-                                        std::string(node->name) + "_" + socket_out->name);
+  if (res.node) {
+    res.node->setName(node_name());
+  }
+  return res;
+}
+
+std::string NodeParser::node_name()
+{
+  return MaterialX::createValidName(node_->output_sockets().size() <= 1 ?
+                                        std::string(node_->name) :
+                                        std::string(node_->name) + "_" + socket_out_->name);
 }
 
 NodeItem NodeParser::create_node(const std::string &mx_category, const std::string &mx_type)
@@ -48,14 +56,14 @@ NodeItem NodeParser::get_input_default(int index)
   return get_input_default(node_->input_socket(index));
 }
 
-NodeItem NodeParser::get_input_link(const std::string &name, NodeItem::Type shader_type)
+NodeItem NodeParser::get_input_link(const std::string &name)
 {
-  return get_input_link(node_->input_by_identifier(name), shader_type);
+  return get_input_link(node_->input_by_identifier(name));
 }
 
-NodeItem NodeParser::get_input_link(int index, NodeItem::Type shader_type)
+NodeItem NodeParser::get_input_link(int index)
 {
-  return get_input_link(node_->input_socket(index), shader_type);
+  return get_input_link(node_->input_socket(index));
 }
 
 NodeItem NodeParser::get_input_value(const std::string &name)
@@ -101,7 +109,7 @@ NodeItem NodeParser::get_input_default(const bNodeSocket &socket)
   return res;
 }
 
-NodeItem NodeParser::get_input_link(const bNodeSocket &socket, NodeItem::Type shader_type)
+NodeItem NodeParser::get_input_link(const bNodeSocket &socket)
 {
   NodeItem res = empty();
 
@@ -122,7 +130,7 @@ NodeItem NodeParser::get_input_link(const bNodeSocket &socket, NodeItem::Type sh
   }
 
   /* Checking if node was already computed */
-  res.node = graph_->getNode(node_name(from_node, link->fromsock));
+  res.node = graph_->getNode(node_name());
   if (res.node) {
     return res;
   }
@@ -131,12 +139,12 @@ NodeItem NodeParser::get_input_link(const bNodeSocket &socket, NodeItem::Type sh
 #define CASE_NODE_TYPE(type, T) \
   case type: \
     res = \
-        T(graph_, depsgraph_, material_, from_node, link->fromsock, shader_type).compute_full(); \
+        T(graph_, depsgraph_, material_, from_node, link->fromsock).compute_full(); \
     break;
 
   switch (from_node->typeinfo->type) {
     CASE_NODE_TYPE(SH_NODE_BRIGHTCONTRAST, BrightContrastNodeParser)
-    CASE_NODE_TYPE(SH_NODE_BSDF_PRINCIPLED, BSDFPrincipledNodeParser)
+    //CASE_NODE_TYPE(SH_NODE_BSDF_PRINCIPLED, BSDFPrincipledNodeParser)
     CASE_NODE_TYPE(SH_NODE_COMBINE_COLOR, CombineColorNodeParser)
     CASE_NODE_TYPE(SH_NODE_COMBXYZ, CombineXYZNodeParser)
     CASE_NODE_TYPE(SH_NODE_HUE_SAT, HueSatValNodeParser)
@@ -164,20 +172,99 @@ NodeItem NodeParser::get_input_link(const bNodeSocket &socket, NodeItem::Type sh
 
 NodeItem NodeParser::get_input_value(const bNodeSocket &socket)
 {
-  NodeItem res = get_input_link(socket, NodeItem::Type::None);
+  NodeItem res = get_input_link(socket);
   if (!res) {
     res = get_input_default(socket);
   }
   return res;
 }
 
-NodeItem NodeParser::compute_full()
+ShaderNodeParser::ShaderNodeParser(MaterialX::GraphElement *graph,
+                                   const Depsgraph *depsgraph,
+                                   const Material *material,
+                                   const bNode *node,
+                                   const bNodeSocket *socket_out,
+                                   NodeItem::Type shader_type)
+    : NodeParser(graph, depsgraph, material, node, socket_out), shader_type_(shader_type)
 {
-  CLOG_INFO(LOG_MATERIALX_SHADER, 1, "%s [%d]", node_->name, node_->typeinfo->type);
-  NodeItem res = compute();
-  if (res.node) {
-    res.node->setName(node_name(node_, socket_out_));
 }
+
+NodeItem ShaderNodeParser::compute()
+{
+  switch (shader_type_) {
+    case NodeItem::Type::BSDF:
+      return compute_bsdf();
+    case NodeItem::Type::EDF:
+      return compute_edf();
+    case NodeItem::Type::SurfaceShader:
+      return compute_surface();
+    default:
+      BLI_assert_unreachable();
+  }
+  return empty();
+}
+
+std::string ShaderNodeParser::node_name()
+{
+  std::string name = NodeParser::node_name();
+  if (shader_type_ != NodeItem::Type::SurfaceShader) {
+    name += "_" + NodeItem::type(shader_type_);
+  }
+  return name;
+}
+
+NodeItem ShaderNodeParser::get_input_shader(const std::string &name, NodeItem::Type shader_type)
+{
+  return get_input_shader(node_->input_by_identifier(name), shader_type);
+}
+
+NodeItem ShaderNodeParser::get_input_shader(int index, NodeItem::Type shader_type)
+{
+  return get_input_shader(node_->input_socket(index), shader_type);
+}
+
+NodeItem ShaderNodeParser::get_input_shader(const bNodeSocket &socket, NodeItem::Type shader_type)
+{
+  NodeItem res = empty();
+
+  const bNodeLink *link = socket.link;
+  if (!(link && link->is_used())) {
+    return res;
+  }
+
+  const bNode *from_node = link->fromnode;
+
+  /* Passing NODE_REROUTE nodes */
+  while (from_node->type == NODE_REROUTE) {
+    link = from_node->input_socket(0).link;
+    if (!(link && link->is_used())) {
+      return res;
+    }
+    from_node = link->fromnode;
+  }
+
+  /* Checking if node was already computed */
+  res.node = graph_->getNode(node_name());
+  if (res.node) {
+    return res;
+  }
+
+  /* Computing from_node with required NodeParser object */
+#define CASE_SHADER_NODE_TYPE(type, T) \
+  case type: \
+    res = T(graph_, depsgraph_, material_, from_node, link->fromsock, shader_type).compute_full(); \
+    break;
+
+  switch (from_node->typeinfo->type) {
+    CASE_SHADER_NODE_TYPE(SH_NODE_BSDF_PRINCIPLED, BSDFPrincipledNodeParser)
+
+    default:
+      CLOG_WARN(LOG_MATERIALX_SHADER,
+                "Unsupported node: %s [%d]",
+                from_node->name,
+                from_node->typeinfo->type);
+  }
+
   return res;
 }
 

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

@@ -19,27 +19,25 @@ class NodeParser {
   const Material *material_;
   const bNode *node_;
   const bNodeSocket *socket_out_;
-  NodeItem::Type shader_type_;
 
  public:
   NodeParser(MaterialX::GraphElement *graph,
              const Depsgraph *depsgraph,
              const Material *material,
              const bNode *node,
-             const bNodeSocket *socket_out,
+             const bNodeSocket *socket_out);
-             NodeItem::Type shader_type);
   virtual ~NodeParser() = default;
 
   virtual NodeItem compute() = 0;
 
  protected:
-  static std::string node_name(const bNode *node, const bNodeSocket *socket_out);
+  NodeItem compute_full();
+  virtual std::string node_name();
   NodeItem create_node(const std::string &mx_category, const std::string &mx_type);
   NodeItem get_input_default(const std::string &name);
   NodeItem get_input_default(int index);
-  NodeItem get_input_link(const std::string &name,
+  NodeItem get_input_link(const std::string &name);
-                          NodeItem::Type shader_type = NodeItem::Type::None);
+  NodeItem get_input_link(int index);
-  NodeItem get_input_link(int index, NodeItem::Type shader_type = NodeItem::Type::None);
   NodeItem get_input_value(const std::string &name);
   NodeItem get_input_value(int index);
   NodeItem empty() const;
@@ -47,9 +45,34 @@ class NodeParser {
 
  private:
   NodeItem get_input_default(const bNodeSocket &socket);
-  NodeItem get_input_link(const bNodeSocket &socket, NodeItem::Type shader_type);
+  NodeItem get_input_link(const bNodeSocket &socket);
   NodeItem get_input_value(const bNodeSocket &socket);
-  NodeItem compute_full();
+};
+
+class ShaderNodeParser : public NodeParser {
+ protected:
+  NodeItem::Type shader_type_;
+
+ public:
+  ShaderNodeParser(MaterialX::GraphElement *graph,
+                   const Depsgraph *depsgraph,
+                   const Material *material,
+                   const bNode *node,
+                   const bNodeSocket *socket_out,
+                   NodeItem::Type shader_type);
+
+  NodeItem compute() override;
+  virtual NodeItem compute_bsdf() = 0;
+  virtual NodeItem compute_edf() = 0;
+  virtual NodeItem compute_surface() = 0;
+
+ protected:
+  std::string node_name() override;
+  NodeItem get_input_shader(const std::string &name, NodeItem::Type shader_type);
+  NodeItem get_input_shader(int index, NodeItem::Type shader_type);
+
+ private:
+  NodeItem get_input_shader(const bNodeSocket &socket, NodeItem::Type shader_type);
 };
 
 template<class T> NodeItem NodeParser::value(const T &data) const
@@ -57,28 +80,38 @@ template<class T> NodeItem NodeParser::value(const T &data) const
   return empty().val(data);
 }
 
-#define DECLARE_PARSER(T) \
+#define DECLARE_NODE_PARSER(T) \
   class T : public NodeParser { \
    public: \
     using NodeParser::NodeParser; \
     NodeItem compute() override; \
   };
 
-DECLARE_PARSER(BrightContrastNodeParser)
+#define DECLARE_SHADER_NODE_PARSER(T) \
-DECLARE_PARSER(BSDFPrincipledNodeParser)
+  class T : public ShaderNodeParser { \
-DECLARE_PARSER(CombineColorNodeParser)
+   public: \
-DECLARE_PARSER(CombineXYZNodeParser)
+    using ShaderNodeParser::ShaderNodeParser; \
-DECLARE_PARSER(HueSatValNodeParser)
+    NodeItem compute_bsdf() override; \
-DECLARE_PARSER(InvertNodeParser)
+    NodeItem compute_edf() override; \
-DECLARE_PARSER(MathNodeParser)
+    NodeItem compute_surface() override; \
-DECLARE_PARSER(MixRGBNodeParser)
+  };
-DECLARE_PARSER(NormalMapNodeParser)
+
-DECLARE_PARSER(SeparateColorNodeParser)
+DECLARE_NODE_PARSER(BrightContrastNodeParser)
-DECLARE_PARSER(SeparateXYZNodeParser)
+DECLARE_NODE_PARSER(CombineColorNodeParser)
-DECLARE_PARSER(TexCheckerNodeParser)
+DECLARE_NODE_PARSER(CombineXYZNodeParser)
-DECLARE_PARSER(TexEnvironmentNodeParser)
+DECLARE_NODE_PARSER(HueSatValNodeParser)
-DECLARE_PARSER(TexImageNodeParser)
+DECLARE_NODE_PARSER(InvertNodeParser)
-DECLARE_PARSER(TexNoiseNodeParser)
+DECLARE_NODE_PARSER(MathNodeParser)
-DECLARE_PARSER(VectorMathNodeParser)
+DECLARE_NODE_PARSER(MixRGBNodeParser)
+DECLARE_NODE_PARSER(NormalMapNodeParser)
+DECLARE_NODE_PARSER(SeparateColorNodeParser)
+DECLARE_NODE_PARSER(SeparateXYZNodeParser)
+DECLARE_NODE_PARSER(TexCheckerNodeParser)
+DECLARE_NODE_PARSER(TexEnvironmentNodeParser)
+DECLARE_NODE_PARSER(TexImageNodeParser)
+DECLARE_NODE_PARSER(TexNoiseNodeParser)
+DECLARE_NODE_PARSER(VectorMathNodeParser)
+
+DECLARE_SHADER_NODE_PARSER(BSDFPrincipledNodeParser)
 
 }  // namespace blender::nodes::materialx

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

@@ -8,9 +8,8 @@ namespace blender::nodes::materialx {
 OutputMaterialNodeParser::OutputMaterialNodeParser(MaterialX::GraphElement *graph,
                                                    const Depsgraph *depsgraph,
                                                    const Material *material,
-                                                   const bNode *node,
+                                                   const bNode *node)
-                                                   NodeItem::Type shader_type)
+    : ShaderNodeParser(graph, depsgraph, material, node, nullptr, NodeItem::Type::Material)
-    : NodeParser(graph, depsgraph, material, node, nullptr, shader_type)
 {
 }
 
@@ -18,18 +17,45 @@ NodeItem OutputMaterialNodeParser::compute()
 {
   NodeItem surface = empty();
   if (node_) {
-    surface = get_input_link("Surface", NodeItem::Type::SurfaceShader);
+    NodeItem bsdf = compute_bsdf();
+    NodeItem edf = compute_edf();
+    if (bsdf || edf) {
+      surface = create_node("surface", "surfaceshader");
+      if (bsdf) {
+        surface.set_input("bsdf", bsdf);
+      }
+      if (edf) {
+        surface.set_input("edf", edf);
+      }
+    }
+    else {
+      surface = compute_surface();
+    }
   }
   else {
     surface = create_node("standard_surface", "surfaceshader");
     surface.set_input("base_color", value(MaterialX::Color3(1.0f, 0.0f, 1.0f)));
   }
   NodeItem res = create_node("surfacematerial", "material");
-  res.node->setName(node_name(node_, nullptr));
   res.set_input("surfaceshader", surface);
   return res;
 }
 
+NodeItem OutputMaterialNodeParser::compute_bsdf()
+{
+  return get_input_shader("Surface", NodeItem::Type::BSDF);
+}
+
+NodeItem OutputMaterialNodeParser::compute_edf()
+{
+  return get_input_shader("Surface", NodeItem::Type::EDF);
+}
+
+NodeItem OutputMaterialNodeParser::compute_surface()
+{
+  return get_input_shader("Surface", NodeItem::Type::SurfaceShader);
+}
+
 NodeItem OutputMaterialNodeParser::compute_default()
 {
   NodeItem surface = create_node("standard_surface", "surfaceshader");
@@ -51,4 +77,9 @@ NodeItem OutputMaterialNodeParser::compute_default()
   return res;
 }
 
+std::string OutputMaterialNodeParser::node_name()
+{
+  return node_->name;
+}
+
 }  // namespace blender::nodes::materialx

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

@@ -8,15 +8,22 @@
 
 namespace blender::nodes::materialx {
 
-class OutputMaterialNodeParser : public NodeParser {
+class OutputMaterialNodeParser : public ShaderNodeParser {
  public:
   OutputMaterialNodeParser(MaterialX::GraphElement *graph,
                            const Depsgraph *depsgraph,
                            const Material *material,
-                           const bNode *node,
+                           const bNode *node);
-                           NodeItem::Type shader_type);
   NodeItem compute() override;
+  NodeItem compute_bsdf() override;
+  NodeItem compute_edf() override;
+  NodeItem compute_surface() override;
+
+  using ShaderNodeParser::compute_full;
   NodeItem compute_default();
+
+ protected:
+  std::string node_name() override;
 };
 
 }  // namespace blender::nodes::materialx