[sldev] [help] TCP and Sockets: connecting to SL with another application

Dahlia Trimble dahliatrimble at gmail.com
Mon Aug 25 09:38:21 PDT 2008

Have you considered the (in the process of being renamed) libsecondlife?

On Mon, Aug 25, 2008 at 9:26 AM, P Mcewan <P.McEwan at sms.ed.ac.uk> wrote:

> Hello there,
> After many searches through the Second Life viewer source code and the
> archived mailing
> list to no avail, I hope someone here would be able to guide me in the
> right direction :).
> I am attempting to have motion capture devices interface with SL to allow
> real-time
> movement of a user's agent through the players own movement. To do this, I
> am planning to
> use the "Puppeteering" version of the Viewer and, by manipulating the
> physical avatar
> joints, have the agent move with the player. In order to do this, I need to
> communicate
> with our group's program (MotionViewer or MV) which calculates the
> positions.
> To communicate with the motion capture program, I planned to do the
> following:
> - create a class which carries out the communication between SL and MV
> - have the class create a TCP socket and connect to a socket server run by
> MV on the
> localhost (and a specific port)
> - then, receive byte packets over the TCP connection from MV to SL
> specifying joint
> positions
> My attempts to do this so far have lead to dead-ends. Using a "LLSocket"
> object, I have
> been able to have SL connect to MV's server socket, but have no idea how to
> then receive
> packets (I had assumed using "LLSocketReader", but this does not seem quite
> right). I
> also tried using "net.h", but could not connect and feel this isn't quite
> right either.
> Searching through the source file seems to get me no further forward, so I
> was wondering
> if anyone knows a clean way I can do this? I had hoped there was some for
> of library
> Linden Labs used, as I really don't want to have to use "socket.h" and have
> to worry
> about platform and such.
> Sorry for the long message, but any help you could give would be greatly
> appreciated!
> Thank you,
> Paul McEwan
> --
> The University of Edinburgh is a charitable body, registered in
> Scotland, with registration number SC005336.
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