Hey everyone,
I started this thread at the beginning of the summer with intentions to develop some sort of pipeline for Spriter -> Game Maker: Studio. As SkyWalker_lordLucas
mentioned, there is an export to .png option which may work for some. However, I had intended to implement an in-game rig I could use for things like IK, animations, and such. This is where the issue arises, because bone data cannot be imported to GM:S.
Unfortunately, I lacked the experience I needed to implement even the most basic prototype of animation. I've since moved on to a new project.
My first obstacle was obtaining a data structure that I could then parse for information on the bone structure. This solution was simple enough thanks to Spriters .scon format and GM:S' json_decode and json_encode functions. Using a bit of file I/O magic you can easily convert the .scon file into a ds_list/ds_map hierarchy.
Unfortunately this is where my progress quickly came to a halt. After experimenting with a few design ideas, I was unable to make any major progress with any of the methods I tried.
My apologies for the massively late follow-up. I'm going back to University soon, but perhaps I will find the free time to revisit this. I understand Edgar is hard at work with updating the interface, and perhaps a new foundation will offer new insight to a successful GM:S implementation.
Until then, I encourage you all to try where I have failed. I'll try and monitor this thread more closely. Feel free to ask me any questions you may have. I tried out a lot of different things so perhaps the solution lies in combining my partial knowledge with someone elses.
Cheers,
Silpheed