Updates to jellydoll behavior for better performance.
If an avatar is explicitly set to no render, or its complexity exceeds the chosen complexity threshold, it will be displayed as a jellydoll. Jellydolls are simplified human avatars, displayed in a uniform color without attachments, animations or other customizations.
SL-14183 Animesh attachments should update impostors on same frame as their parent
SL-14142 Impostor management is an unmaintainable and incomprehensible mess
SL-14130 Jellydolls have wrong appearance when non-impostors is uncapped
SL-14046 The "Jellydoll" model is corrupted after attaching rigged mesh without a "joint position"
SL-14045 Non-system animations are displayed in 'animation info' list when avatar is in jelly doll state
SL-14015 [OSX] Animesh attachment is rendered as phantom when the avatar is rendered as Jellydoll
BUG-229265 [New Jelly Dolls] When jelly doll state ends, non-system animations do not recover.
SL-13611 Avatar rezzing in jellydoll state is initially invisible