Gif Animation

Hello. In this simulation: … _Black.gif
I made the frames with ROOT and finally I merged them into a unique animated gif using a (low-resolution) gif-maker program. How to do a high-resolution animated gif with ROOT? In particular I’d like to save N canvases into a multi-frame gif file (or, alternatively, pick up N static images and merge them into a gif). N could be large, and the final file size too, but resolution should be not compromised. A good gif-maker method should also require a frame-by-frame animation speed, looping options and resolution options.
Is that feasible under ROOT?

for producing animated gif files, see
and $ROOTSYS/tutorials/asimage/hsumanim.C