GUI startup : Add GafferML nodes to NodeMenu

And advertise them in Changes.md.

Changes.md

@@ -1,6 +1,15 @@
 1.5.x.x (relative to 1.5.0.1)
 =======
 
+Features
+--------
+
+- GafferML : Added a new module with the following nodes for running maching learning models via ONNX Runtime :
+  - DataToTensor : Converts Gaffer data to tensors.
+  - Inference : Loads ONNX models and performance inference using an array of input tensors.
+  - ImageToTensor : Converts images to tensors for use with the Inference node.
+  - TensorToImage : Converts tensors back to images following inference.
+
 Improvements
 ------------
 

startup/gui/menus.py

@@ -555,6 +555,18 @@ def __usdLightCreator( lightType ) :
 nodeMenu.append( "/Dispatch/Frame Mask", GafferDispatch.FrameMask, searchText = "FrameMask" )
 nodeMenu.append( "/Dispatch/Local Dispatcher", GafferDispatch.LocalDispatcher, searchText = "LocalDispatcher" )
 
+# ML nodes
+
+if os.environ.get( "ONNX_ROOT" ) and moduleSearchPath.find( "GafferML" ) :
+
+	import GafferML
+	import GafferMLUI
+
+	nodeMenu.append( "/ML/Data To Tensor", GafferML.DataToTensor, searchText = "DataToTensor" )
+	nodeMenu.append( "/ML/Image To Tensor", GafferML.ImageToTensor, searchText = "ImageToTensor" )
+	nodeMenu.append( "/ML/Tensor To Image", GafferML.TensorToImage, searchText = "TensorToImage" )
+	nodeMenu.append( "/ML/Inference", GafferML.Inference, searchText = "Inference" )
+
 # Utility nodes
 
 nodeMenu.append( "/Utility/Expression", Gaffer.Expression )