source/blender/nodes/shader/CMakeLists.txt

@@ -152,12 +152,14 @@ if(WITH_MATERIALX)
     materialx/nodes/node_parser.cc
     materialx/nodes/output_material.cc
     materialx/nodes/tex_image.cc
+    materialx/nodes/tex_environment.cc
 
     materialx/material.h
     materialx/nodes/bsdf_principled.h
     materialx/nodes/node_parser.h
     materialx/nodes/output_material.h
     materialx/nodes/tex_image.h
+    materialx/nodes/tex_environment.h
   )
 endif()
 

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

@@ -6,6 +6,7 @@
 
 #include "bsdf_principled.h"
 #include "tex_image.h"
+#include "tex_environment.h"
 
 #include <BKE_node_runtime.hh>
 
@@ -154,6 +155,9 @@ NodeItem NodeParser::get_input_link(const std::string &name)
     case SH_NODE_TEX_IMAGE:
       parser = std::make_unique<TexImageNodeParser>(graph, depsgraph, material, in_node);
       break;
+    case SH_NODE_TEX_ENVIRONMENT:
+      parser = std::make_unique<TexEnvironmentNodeParser>(graph, depsgraph, material, in_node);
+      break;
     default:
       // TODO: warning log
       return res;

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

@@ -0,0 +1,34 @@
+/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include "tex_environment.h"
+#include "node_parser.h"
+
+#include "hydra/image.h"
+
+#include "DEG_depsgraph_query.h"
+
+namespace blender::nodes::materialx {
+
+NodeItem TexEnvironmentNodeParser::compute()
+{
+  Image *image = (Image *)node->id;
+  NodeTexEnvironment *tex = static_cast<NodeTexEnvironment *>(node->storage);
+  Scene *scene = DEG_get_input_scene(depsgraph);
+  Main *bmain = DEG_get_bmain(depsgraph);
+  std::string image_path;
+  /* TODO: What if Blender built without Hydra? Also io::hydra::cache_or_get_image_file contains
+   * pretty general code, so could be moved from bf_usd project. */
+#ifdef WITH_HYDRA
+  image_path = io::hydra::cache_or_get_image_file(bmain, scene, image, &tex->iuser);
+#endif
+
+  NodeItem texcoord = create_node("texcoord", "vector2", true);
+  NodeItem res = create_node("image", "color3");
+  res.set_input("file", image_path, "filename");
+  res.set_input("texcoord", texcoord);
+  return res;
+}
+
+}  // namespace blender::nodes::materialx

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

@@ -0,0 +1,17 @@
+/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+#pragma once
+
+#include "node_parser.h"
+
+namespace blender::nodes::materialx {
+
+class TexEnvironmentNodeParser : public NodeParser {
+ public:
+  using NodeParser::NodeParser;
+  NodeItem compute() override;
+};
+
+}  // namespace blender::nodes::materialx

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

@@ -18,7 +18,7 @@ NodeItem TexImageNodeParser::compute()
   Scene *scene = DEG_get_input_scene(depsgraph);
   Main *bmain = DEG_get_bmain(depsgraph);
   std::string image_path;
-  /* TODO: What if Blender built without Hydra? Also io::hydra::cache_or_get_image_file contain
+  /* TODO: What if Blender built without Hydra? Also io::hydra::cache_or_get_image_file contains
    * pretty general code, so could be moved from bf_usd project. */
 #ifdef WITH_HYDRA
   image_path = io::hydra::cache_or_get_image_file(bmain, scene, image, &tex->iuser);