Is it possible to get Terragen to output to an exr's metadata . The number one use case is for adding the Terragen scene file path to the render so that it can be tracked later in life. Currently I work in an environment that forces a naming convention on render files so linking back to the original scene files isn't as simple as it could be.
Other candidates would be render time, camera information( translate rotate, focal length), render quality settings so that that information could be tracked with the image
