Node Ambient Occlusion.

Fixed type conversion issue. Now type is converted even if node is already in graph.

@@ -53,2 +55,4 @@
  private:
   NodeItem get_input_default(const bNodeSocket &socket, NodeItem::Type to_type);
+  NodeItem get_output_default(const bNodeSocket &socket);
+  NodeItem get_value_default(const bNodeSocket &socket);

@@ -58,0 +64,4 @@
+   * res.set_input("coneangle", val(90.0f));
+   * res.set_input("maxdistance", maxdistance);
+   */
+  NodeItem res = val(MaterialX::Color4(1.0f, 0.0f, 1.0f, 1.0f));

@@ -80,0 +81,4 @@
+{
+  /* TODO: some outputs expected be implemented within the next iteration (see nodedef
+   * <geompropvalue>) */
+  NodeItem res = val(MaterialX::Color4(1.0f, 0.0f, 1.0f, 1.0f));

@@ -80,0 +85,4 @@
+  if (STREQ(socket_out_->name, "Vector")) {
+    res = val(MaterialX::Vector3(1.0f, 1.0f, 1.0f));
+  }
+  if (STREQ(socket_out_->name, "Factor")) {

@@ -80,0 +90,4 @@
+  }
+  if (STREQ(socket_out_->name, "Alpha")) {
+    res = res.extract(3);
+  }

@@ -41,1 +41,4 @@
 
+NODE_SHADER_MATERIALX_BEGIN
+{
+  /* TODO: This node doesn't have an implementation in MaterialX 1.38.6.*/

@@ -42,0 +42,4 @@
+NODE_SHADER_MATERIALX_BEGIN
+{
+  /* TODO: This node doesn't have an implementation in MaterialX 1.38.6.*/
+  return val(MaterialX::Vector3(1.0f, 1.0f, 1.0f));

@@ -29,0 +36,4 @@
+  if (STREQ(socket_out_->name, "View Distance")) {
+    res = res.extract(2);
+  }
+  return res;

@@ -61,0 +64,4 @@
+  CLG_LogRef *LOG_MATERIALX_SHADER = materialx::LOG_MATERIALX_SHADER;
+
+  NodeItem res = empty();
+  const char *output_name = socket_out_->name;

@@ -37,0 +38,4 @@
+{
+  /* TODO: This node doesn't have an implementation in MaterialX 1.38.6.*/
+  NodeItem res = val(MaterialX::Vector3(1.0f, 1.0f, 1.0f));
+  if (STREQ(socket_out_->name, "Index") || STREQ(socket_out_->name, "Random") ||

@@ -25,0 +29,4 @@
+  if (STREQ(socket_out_->name, "Radius") || STREQ(socket_out_->name, "Random")) {
+    res = res.extract(2);
+  }
+  return res;

@@ -74,0 +74,4 @@
+NODE_SHADER_MATERIALX_BEGIN
+{
+  /* TODO: Partially implemented, some nodes don't have an implementation in MaterialX 1.38.6.
+   * some outputs expected be implemented within the next iteration*/

@@ -69,1 +69,4 @@
 
+NODE_SHADER_MATERIALX_BEGIN
+{
+  /* TODO: Partially implemented*/

@@ -70,0 +71,4 @@
+{
+  /* TODO: some output expected be implemented within the next iteration (see nodedef
+   * <geomcolor>)*/
+  NodeItem res = val(MaterialX::Color4(1.0f, 0.0f, 1.0f, 1.0f));

@@ -142,7 +152,7 @@ NodeItem NodeParser::get_input_default(const bNodeSocket &socket, NodeItem::Type
       CLOG_WARN(LOG_MATERIALX_SHADER, "Unsupported socket type: %d", socket.type);
     }
   }
-  return res.convert(to_type);