How to watch 3D movies with 3d subtitles in Infuse?

I have try to see some 3D movies with infuse 3 with great success, but not with subtitles.
Now I want to try to see if I can get the subtitles correct. Have try to convert .srt subtitle to .ass and I don’t get the text correct because it comes over the both frames of the picture when I use airplay. In Movist on OS X it works great to use that converted .ass subtitle in the movie. But now in Infuse. So is it someone here who knows how to convert a .srt subtitle to 3d subtitle correctly?

Thank you so much in advanced!

I also wonder how to watch 3D movies with 3d subtitles in Infuse. Is there not anybody with knowledge on this? Thanks in advance also.