I'm not sure if this works on OS yet as I've not tried it and I'm about
to go to bed. But... If you're on viewer2+ try setting the physics
type from "prim" to "none" in the build window. On SL that would set
that part to no physics - or the equivalent of phantom.
On 02/03/2013 02:16 AM, Oren Hurvitz wrote:
I have recently become aware that there's an entire cottage industry of
scripts whose purpose is to make a single prim in a linkset phantom. These
scripts are needed because:
a) Usually the phantom flag is set for an entire linkset, so it's necessary
to use a script to change the flag for a single prim
b) The LSL functions that change the Phantom flag (llSetStatus() and
llSetPrimitiveParams()) change it for the entire linkset at once, so they
can't be used to change a single prim.
These scripts use a very complicated workaround that involve changing the
prim's shape in several steps, which is brittle and dangerous. You can see
the scripts here: http://wiki.secondlife.com/wiki/Phantom_Child
In Second Life there is now a simpler and safer way to make a single prim
stop colliding:
llSetLinkPrimitiveParamsFast(LINK_THIS, [PRIM_PHYSICS_SHAPE_TYPE,
PRIM_PHYSICS_SHAPE_NONE]);
However, this isn't implemented in OpenSim. And I don't know if it's exactly
equivalent to making the prim phantom.
I propose extending llSetStatus() to allow setting the phantom flag for a
single prim. This involves adding the flag OS_STATUS_PHANTOM_PRIM. It works
just like the existing flag STATUS_PHANTOM, but it operates on the prim that
contains the script instead of the entire linkset. This behavior mirrors the
way llSetStatus() works with the STATUS_BLOCK_GRAB flag: it also comes in
two flavors, STATUS_BLOCK_GRAB (for a prim) and STATUS_BLOCK_GRAB_OBJECT
(for the linkset).
Any thoughts? Does anyone know of a different way to safely change the
phantom flag for a single prim in a linkset?
Oren
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