MantisBT - opensim
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0001342opensim[REGION] Physics Enginespublic2008-05-21 00:042011-08-07 00:50
Grid (Multiple Regions per Sim)
Mono / Linux32
0001342: sitting pose is not correct when sitting on a box
the sitting pose is not correct when sitting on a box.
pls check the captured picture.
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related to 0001366confirmed  sitting facing to the hill when sitting on tali ground 
rar 2.rar (608,322) 2008-05-21 00:19
jpg Broken pos.JPG (21,821) 2008-05-22 06:30
Issue History
2008-05-21 00:04simsimNew Issue
2008-05-21 00:04simsimSVN Revision => ver 4688
2008-05-21 00:04simsimRun Mode => Grid (Multiple Regions per Sim)
2008-05-21 00:04simsimPhysics Engine => ODE
2008-05-21 00:04simsimEnvironment => Mono / Linux32
2008-05-21 00:08simsimSummarythere is a gap between avatar and prim when POS physics => sitting pose is not correct when sitting on a box
2008-05-21 00:19simsimFile Added: 2.rar
2008-05-21 10:02rjsNote Added: 0002345
2008-05-21 23:45simsimNote Added: 0002370
2008-05-21 23:46simsimNote Edited: 0002370
2008-05-22 06:30mirceakitsuneFile Added: Broken pos.JPG
2008-05-22 06:30mirceakitsuneNote Added: 0002380
2008-05-22 06:30mirceakitsuneStatusnew => confirmed
2008-05-22 22:52rjsRelationship addedhas duplicate 0001366
2008-05-23 01:44simsimRelationship deletedhas duplicate 0001366
2008-06-03 00:50rjsRelationship addedrelated to 0001366
2008-10-17 09:13mirceakitsuneNote Added: 0006259
2009-09-28 02:09simsimNote Added: 0013650
2011-08-07 00:50makopoppoNote Added: 0019421

2008-05-21 10:02   
Easily verifiable. Avatars are hovering over the sit object. Depending on the object size, the avatar may hover just over the object (cube). On large objects the range increases with the prim size and the avatar may have it's head in the clouds on sit.
2008-05-21 23:45   
(edited on: 2008-05-21 23:46)
Here is not relation with object size because the size of this object is small.It is also far from the clouds.

when a avatar is sitting on a box,his BUTT of the avatar's body should touch the side of this box as same as the pose when sitting on a ground.But,now he just seems sitting on a desk.

2008-05-22 06:30   
Can confirm. This also happens when sitting on a normal 0.5 x 0.5 x 0.5 box. Also don't forget other prim types too, such as cylinders, spheres, etc... look in my attachment what happens when I sit on a sphere.
2008-10-17 09:13   
Still happens in rev 6880 when creating a sphere and sitting on it. Opensim attempts to sit the avatar accordingly to the sphere's rotation on the top of the sphere, so if the prim is rotated it sits you wherever it faces at considering that's the top of the prim you must sit on. A correct implementation would be to sit on the real / current top of the sphere that is the most upper part, no matter how it's oriented or rotated. Of course unless there's a llSetSitTarget script in the prim.
2009-09-28 02:09   
same result

tested by R.O.B.U.S.T modle
commit 42746e99bdad71f81c9693d8638ffdf6bc3dd87a
Author: Melanie <>
Date: Sun Sep 27 23:02:40 2009 +0100

Viewer:Second Life 1.22.11 (113941) Mar 6 2009 12:50:02 (Second Life Release)
2011-08-07 00:50   
In 0.7.2-dev, sitting position has been almost fixed, but still avatar sits on the air above the box.