When I'm using %f it saves project filename in autosave. For example, my project file is 'cube.max' and render output filename is 'cube_camera01.png'. So the Syntax 'autosave_%f' will give me the file 'autosave_cube.max_0001.exr'. This is exatly not that I want.
So there is no way to put render output filename in autosave syntax?