This request is to be able to get the XY value of the mouse over the outputImage while using protocol compositions (filter & generator).
Currently we are only able to get the mouse.xy when using a windowed composition. This obviously would not work for rendering compositions, (so maybe a warning should be used when a user has mouse.xy input in such compositions).
This feature would allow us to make useful UI elements for future plugins, (both for current hosts - and future hosts). This feature may need to be different depending on different hosts and plugin formats, (FX-Plug v's VDMX for example).
I know that even during Vuo development it would be useful to access mouse interaction with outputImage Image Generator windows simply to be able to move things, or interact, before rendering or exporting.