On Thu, 07 Mar 2013 15:53:03 +0100, Thomas Shikami wrote: > Is there even a requirement zo have Z-offset be in the avatar > appearance message?
The Z-offset is not transmitted to the server by the viewers implementing it: what is transmitted is the sum of the Z-offset (which can also be negative) and the avatar height as calculated from the shoes and shape visual parameters. This causes the server to think that the avatar is either taller or smaller while its shape and shoes didn't change, but which also causes the animations to be played at a higher or lower level above the floor (the server can auto-correct properly standing animations for any worn shape or shoes, but of course this auto-correction algorithm fails for sitting, kneeling, laying, crouching, crawling anims since in those the feet to hip length doesn't count for the same fraction as in standing anims). In short, the viewer transmits to the server what it computed to be the proper "avatar height" for the animation to be correctly leveled with the floor; the server then adopts this new height, applies its own auto-correction (the one that was designed for standing anims) and relays the info to all viewers, making the avatar appear at the proper level for everyone around. > To me it looks more like that hip-offset would be better suited > to be in some animation parameter, which makes it incompatible with > older viewers, but a SSB-enabled simulator might translate that > animation parameter into an avatar appearance message for viewers not > supporting that idea of animation parameter. I already replied to this suggestion to Satomi Ahn in this list, explaining why it won't work properly and won't allow to perform the equivalent operations as what non-SSB servers have been allowing since day one of SL (and OpenSim). Ideally, yes, the animations should have allowed to enter the "reference height" (the height of the avatar for which the anim is properly leveled with the floor) and "scalar" (the scalar to apply to the difference between the reference height and the current height of the avatar playing the anim so to find the Z-offset to add to this latter height so to allow a proper leveling with the floor). However, all existing anims would still fail to play properly if LL was to add these parameters now without supporting the Z-offset feature. This is not the solution we need, even if adding such parameters to the anims could be a future improvement (but you will always need Z-offet support for all the existing anims, as well as for correcting manually the sit target of pose-balls/furniture not having a scripted anim height adjustment). Henri. _______________________________________________ Policies and (un)subscribe information available here: http://wiki.secondlife.com/wiki/OpenSource-Dev Please read the policies before posting to keep unmoderated posting privileges
