[Opensim-users] osSetPrimitiveParams question

[Marcus Llewellyn]

If I'm reading what you want to accomplish correctly, my understanding is
that this is not possible. A mesh's UUID is for an object. It is akin to
trying to swap one prim for a completely different one.

As a historical note, when mesh was still in beta over at LL (and in
Opensim's original implementation), meshes were originally something
applied to a prim, much like a texture or sculpt map. This was later
changed, and meshes become first class objects in their own right.
 On Jun 5, 2014 3:17 PM, "simon burke" <simon at duanedibley.com> wrote:

> Folks
>    not sure if this is a feature bug or misunderstanding (on my part).
> I recently posted a thread at osgrid and was advised to ask here
>
> osgrid  : forums.osgrid.org/viewtopic.php?f=5&t=5191&p=24373#p24373
>
> Background is below
>
> I am using llSetPrimitiveParams to set params on an existing (created)
> object to PRIM_TYPE=9, FLAG=7 (sculpt) and MAP=mesh UUID, PRIM_TYPE_SCULPT
> = 5 (mesh).
>
> i:e settings to "7::9b71b6a9-98d8-42c4-930a-807247619d33::5"
>
> If i read back PRIM_TYPE right after i get "7::9b71b6a9-98d8-42c4-930a-
> 807247619d33::1"
>
> so it set the UUID correctly but left the type as 1 (PRIM_TYPE_CYLINDER)
> instead of type 5 (MESH).
>
> checking LL docs for LlSetPrimitiveParams say this/"With this subtype,
> PRIM_TYPE_SCULPT's map parameter is read-only, when read NULL_KEY is
> returned. In other words this can only be used to determine that a prim is
> of the mesh subtype."/. It seems it was enabled/allowed initially then
> disabled later on.
>
> SO it seems like i have run into the UUID swap problem
>
> http://wiki.secondlife.com/wiki/Why_UUI ... ing_is_Bad <
> http://wiki.secondlife.com/wiki/Why_UUID_Flipping_is_Bad>
>
> http://blog.nalates.net/2011/06/27/seco ... e-week-26/ <
> http://blog.nalates.net/2011/06/27/second-life-mesh-
> meeting-update-week-26/>
>
> oddly it seems like i can set the UUID, but not set the type to MESH to
> use it .
>
>
> So in summary , while llSetPrimitiveParams i assume must remain
> "compatible" with SL, is there any option, setting or other magic i can use
>  that would enable osSetPrimitiveParams to support UUID swapping for
> Meshes. Specifically I am rezzing a regular "Box", then trying to one time
> swap the type, subtype and UUID to an existing mesh UUID. I am not trying
> to swap a mesh to a different mesh, or do this more than once per rez.
>
> There may be bigger technical details beneath this that have been hinted
> at in discussions but i am unaware of.
>
> So question is can osSetPRimitiveParams support mesh type and UUID
> "setting" ?
>
> cheers
>
> Simon
>
>
>
>
>
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