Leandro â€œCesioâ€ Inocencio and I were trying to figure out a way to set up a rig in a similar fashion than the fantastic rig from Victor Vinyals demo reel, with smooth IK/FK blending, autosnapping and UI simpleness as Pepeland's Red Nelb.
Lots of features missing in the Blender API as well as bugs in Blender, were stopping us to get what we wanted. Fortunately, Campbell Barton and Joshua Leung were there to help coding the needed API commands and fixing the annoying bugs and we succeed at getting the smooth IK/FK blending which was the most difficult part (actually it was Joshua who provided us a sample code that put us on the right track).I finally applied all these tests and ideas into one single rig for my MaloyÃ³ Project.
Instructions are in the file; check out the demonstration video below to get an impression of this rig's capabilities. Further information & download on Claudio's site.