source/blender/nodes/shader/nodes/node_shader_bsdf_principled.cc

@@ -287,11 +287,6 @@ static void node_shader_update_principled(bNodeTree *ntree, bNode *node)
 NODE_SHADER_MATERIALX_BEGIN
 #ifdef WITH_MATERIALX
 {
-  if (to_type_ != NodeItem::Type::SurfaceShader) {
-    /* TODO: implement for BSDF and EDF */
-    return empty();
-  }
-
   NodeItem base_color = get_input_value("Base Color", NodeItem::Type::Color3);
 
   NodeItem subsurface = get_input_value("Subsurface", NodeItem::Type::Float);
@@ -330,6 +325,8 @@ NODE_SHADER_MATERIALX_BEGIN
 
   subsurface_radius = subsurface_radius * subsurface_scale;
 
+  NodeItem res = empty();
+  if (to_type_ == NodeItem::Type::BSDF) {
     NodeItem n_main_tangent = empty();
     if (tangent) {
       NodeItem n_tangent_rotate = create_node("rotate3d", NodeItem::Type::Vector3);
@@ -344,7 +341,8 @@ NODE_SHADER_MATERIALX_BEGIN
           NodeItem::CompareOp::Greater, val(0.0f), n_tangent_rotate_normalize, tangent);
     }
 
-  NodeItem n_coat_roughness_vector = create_node("roughness_anisotropy", NodeItem::Type::Vector2);
+    NodeItem n_coat_roughness_vector = create_node("roughness_anisotropy",
+                                                   NodeItem::Type::Vector2);
     n_coat_roughness_vector.set_input("roughness", roughness);
     n_coat_roughness_vector.set_input("anisotropy", anisotropic);
 
@@ -423,7 +421,8 @@ NODE_SHADER_MATERIALX_BEGIN
                                                      (roughness + roughness).clamp(0.0f, 1.0f));
     n_coat_affected_transmission_roughness.set_input("mix", n_coat_affect_roughness_multiply2);
 
-  NodeItem n_transmission_roughness = create_node("roughness_anisotropy", NodeItem::Type::Vector2);
+    NodeItem n_transmission_roughness = create_node("roughness_anisotropy",
+                                                    NodeItem::Type::Vector2);
     n_transmission_roughness.set_input("roughness", n_coat_affected_transmission_roughness);
     n_transmission_roughness.set_input("anisotropy", anisotropic);
 
@@ -505,22 +504,67 @@ NODE_SHADER_MATERIALX_BEGIN
     NodeItem n_opacity_luminance = create_node("luminance", NodeItem::Type::Color3);
     n_opacity_luminance.set_input("in", val(MaterialX::Color3(1.0f, 1.0f, 1.0f)));
 
-  NodeItem n_emission_edf = create_node("uniform_edf", NodeItem::Type::EDF);
-  n_emission_edf.set_input("color", emission * emission_strength);
-
     NodeItem n_coat_attenuation = create_node("mix", NodeItem::Type::Color3);
     n_coat_attenuation.set_input("fg", base_color);
     n_coat_attenuation.set_input("bg", val(MaterialX::Color3(1.0f, 1.0f, 1.0f)));
     n_coat_attenuation.set_input("mix", coat);
 
-  NodeItem n_coat_layer = create_node("layer", NodeItem::Type::BSDF);
-  n_coat_layer.set_input("top", n_coat_bsdf);
-  n_coat_layer.set_input("base", n_thin_film_layer * n_coat_attenuation);
+    res = create_node("layer", NodeItem::Type::BSDF);
+    res.set_input("top", n_coat_bsdf);
+    res.set_input("base", n_thin_film_layer * n_coat_attenuation);
 
-  NodeItem res = create_node("surface", NodeItem::Type::SurfaceShader);
-  res.set_input("bsdf", n_coat_layer);
-  res.set_input("edf", n_emission_edf);
-  res.set_input("opacity", n_opacity_luminance.extract(0));
+    return res;
+  }
+  else if (to_type_ == NodeItem::Type::EDF) {
+    res = create_node("uniform_edf", NodeItem::Type::EDF);
+    res.set_input("color", emission * emission_strength);
+  }
+  else if (to_type_ == NodeItem::Type::SurfaceShader) {
+    res = create_node("standard_surface", NodeItem::Type::SurfaceShader);
+    res.set_input("base", val(1.0f));
+    res.set_input("base_color", base_color);
+    res.set_input("diffuse_roughness", roughness);
+    if (normal) {
+      res.set_input("normal", normal);
+    }
+    if (tangent) {
+      res.set_input("tangent", tangent);
+    }
+    res.set_input("metalness", metallic);
+
+    res.set_input("specular", specular);
+    res.set_input("specular_color", base_color);
+    res.set_input("specular_roughness", roughness);
+    res.set_input("specular_IOR", ior);
+    res.set_input("specular_anisotropy", anisotropic);
+    res.set_input("specular_rotation", anisotropic_rotation);
+
+    res.set_input("transmission", transmission);
+    res.set_input("transmission_color", base_color);
+    res.set_input("transmission_extra_roughness", roughness);
+
+    res.set_input("subsurface", subsurface);
+    res.set_input("subsurface_color", base_color);
+    res.set_input("subsurface_radius", subsurface_radius);
+    res.set_input("subsurface_anisotropy", anisotropic);
+
+    res.set_input("sheen", sheen);
+    res.set_input("sheen_color", base_color);
+    res.set_input("sheen_roughness", roughness);
+
+    res.set_input("coat", coat);
+    res.set_input("coat_color", base_color);
+    res.set_input("coat_roughness", coat_roughness);
+    res.set_input("coat_IOR", ior);
+    res.set_input("coat_anisotropy", anisotropic);
+    res.set_input("coat_rotation", anisotropic_rotation);
+    if (coat_normal) {
+      res.set_input("coat_normal", coat_normal);
+    }
+
+    res.set_input("emission", emission_strength);
+    res.set_input("emission_color", emission);
+  }
 
   return res;
 }

source/blender/nodes/shader/nodes/node_shader_mix_shader.cc

@@ -42,8 +42,8 @@ NODE_SHADER_MATERIALX_BEGIN
       }
       else if (shader1 && shader2) {
         res = create_node("mix", to_type_);
-        res.set_input("fg", shader1);
-        res.set_input("bg", shader2);
+        res.set_input("fg", shader2);
+        res.set_input("bg", shader1);
         res.set_input("mix", fac);
       }
       break;