Second Life Wiki - User contributions [en]

Limits

2009-10-28T23:38:33Z

Arawn Spitteler: /* Land */

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== Introduction ==
The Second Life Viewer and simulators have a division of labor, keeping track of the data that makes Second Life run. The Viewer's job is to:

* Handle locations of objects.
* Get velocities and other physics information, and does simple physics to keep track of what is moving where.

The simulator's job is to:

* Run the physics engine.
* Detect collisions.
* Keep track of where everything is
* Send locations of content to the Viewer along with updates when certain changes occur.

Limits are necessary for all of these components to work together. The list below outlines many of the '''Second Life numerical limits that affect your inworld experience'''. Some of these will likely change over time, so if you spot something incorrect/outdated, please take a moment to update it.

{{KBcaution|1=Cite sources and provide substantiation for limits that aren't provided by Linden Lab. Also, unconfirmed speculation [[Talk:Limits|goes on this discussion page]]. Don't add data without a hard limit, and don't add obscure trivia that doesn't practically affect the general inworld experience.}}

== [[Avatar]] ==
* '''Max. # of attachment points''' - 30 for avatar, 8 for [[HUD]].
** They can be viewed in Edit menu > Detach Object.
* '''Max. unassisted fly height''' - Stable hover almost 150m above the ground (terrain mesh).
** You can easily acquire a flight attachment to fly high. Also see [[flight limit]] and [[Limits#Navigation|the Navigation section]] below.
* '''Common shoe sizes''' - Most women's shoes are designed for a size 0 (zero) foot. Men's generally scale up to 14.
** You can check this by going to Edit menu > Appearance and clicking on the Shape > Legs tab.
* '''Max. length of avatar name''' - 31 for first name, 31 for last name, 63 in total (including the space).
* '''Max. avatar speed''' - 250m/s (with only attachments to assist)
* '''Max. teleport speed'''
** '''Server 1.27.1''' - 10 teleports per 15 seconds
** '''Server 1.27.0''' - 3 teleports per 15 seconds

== Building ==
* '''Max. [[prim]] dimensions (non-[[megaprim]])''' - 10x10x10m
* '''Min. prim dimensions''' - 0.01x0.01x0.01m
* '''Max. # of prims in a linkset''' - 256
** It was 255 before SL Server 1.26.
* '''Max. link distance''' - See [[Linkability Rules]].
* '''Max. # of prims in a physical object''' - 32
** If you try to link more, it'll either say "Can't enable physics for objects with more than 32 primitives" or "Object has too many primitives -- its dynamics have been disabled.".
** This limit includes the driver and passengers of physics-enabled vehicles, e.g., if you're making a car to seat 4 people, 28 prims are available for the car itself.
* '''Max. build height''' - 4,096m
** This is 768m for viewers prior to SL 1.20
* '''Max. prim name length''' - 63 bytes UTF8 [[string]]
** Note: This is the same total character limit as avatar names.
* '''Max. prim description length''' - 127 bytes UTF8 [[string]]
* '''Temporary prim lifetime''' - around 60 seconds
* '''Max. number of temporary prims''' - regular_prim_limit - current_regular_prims + minimum(0.5 * regular_prim_limit + 400, 1000)
** From [http://forums.secondlife.com/showthread.php?t=305651 Andrew Linden's February 2009 discussion])

== Chat (text) ==
* '''Whisper distance''' - 10 m
* '''Chat distance''' - 20 m
* '''Shout distance''' - 100 m
** Rule of thumb: when you're at default zoom (View menu > Reset View), if you can see another person's nametag, they can see your chat. If they're far enough away that you don't see a nametag, they won't "hear" you unless you shout.
* '''Max. length of a chat message''' - 1023 bytes/single-byte characters
** The same holds true for an IM <-> email replies.
* '''Capped''' - Maximum number of offline messages (involving [[IM]]s, inventory offers, group notices and group invitations) received before messages get capped is 25.
** Senders can't know whether their messages were capped or not.
* '''Email -> IM''' replies can be sent up to 5 days after receiving the offline IM the email is meant to answer.[[https://blogs.secondlife.com/community/features/blog/2007/02/06/im-to-e-mail-return-addresses-changing blog]]
* '''IMs''' are retained on Linden Lab's servers for up to 31 days before being discarded. For example, if someone sends you an Instant Message and the next time you login is 33 days later, you won't get it.
** Torley confirmed this with Kelly Linden.

== [[Group]]s ==
* '''Max. # of groups you can belong to''' - 25
** Roles within groups are sort of like sub-groups. In many cases, you can use them instead of creating new groups.
* '''Min. # of members in a group''' - 2
** A group with only 1 person for 48 hours will be disbanded (cancelled). Unless the group owns land.
* '''Max. # of roles allowed in a group''' - 10 (including "Owners" and "Everyone", which can't be deleted)
* '''Max. Group Name''' - 35 single-byte characters
* '''Max. Group Title''' - 20 single-byte characters

== [[Inventory]] ==
* '''Max. # of inventory items that can be sent in a folder''' - 42
** Folders count as items too. This has more to do with packet size limits than cheeky Douglas Adams references. ;)
* '''Max. notecard line''' - None, but scripts can only read the first 255 bytes
* '''Max. notecard size''' - 65,536 bytes

== [[Land]] ==
* '''Max. [[Land#Parcel|parcel]] size''' - 65,536 m²
** Covering a whole region, or square on the World Map.
* '''Min. parcel size''' - 16 m²
* '''Max. parcel name length''' - 63 characters
* '''Region name length''' - Min. 3 characters, max. 25 characters (including spaces){{KB|5215|Guidelines for Private Region Naming}}
* '''Max. "NO ENTRY" ban line height''' - 768 m above the terrain mesh.
** This is if you're explicitly banned from a parcel. If the parcel is simply not public access or restricted to certain Residents or a group, then the access lines go up to 50 m above the terrain mesh.
* '''Max. prims in a [[Land#Region|region]]:'''
** Full region - 15,000
** [[Land#Homestead|Homestead]] - 3,750
** [[Land#Openspace|Openspace]] - 750
* '''Max. Autoreturn value''' - Besides "0" (which means ''never''), 999,999 minutes is the highest autoreturn value.
* '''Terraforming limits:'''
** Most mainland can be raised/lowered by +/-4 m.
** Some mainland can't be terraformed, including: Bay City Regions, Blumfield, Boardman, Brown, De Haro, Nautilus City Regions, Nova Albion Regions, Shermerville Regions, and West Haven.
** A few, very old mainland Regions like Da Boom have a terraform range of +/-40 m.
** Estate (private island) terraformability is settable to a max of +/-100 m by the estate owner or managers.
* '''Max. water height''' - 100 m using in-world controls (mainland limit), 255 m by using a .raw file upload.
** Region water height is usually 20 m, and adjacent regions should have the same water height, or else they'll look discontinuous.
* '''Max. terrain height''' - 255 m using in-world controls (mainland limit), 510 m by using a .raw file upload.
* '''Misc. estate limits''' - You can have a max. of 10 estate managers, 500 allowed Residents, 63 allowed groups, and 500 banned Residents.
** See World menu > Region/Estate > Estate tab.
* '''Mainland max. # of agents''' - 40 avatars/region
* '''Island max. # of agents:'''
** Full region - 100
** [[Land#Homestead|Homestead]] - 20
** [[Land#Openspace|Openspace]] - 10
* '''Freeze Time''' - Land owners can [[freeze]] other Residents for up to 30 seconds.
* '''Min. parcel that can be listed in Places or All search:''' 144 m² 
* '''Min. parcel that can be listed in Events:''' 512 m²
* '''Max. Altitude for Event Listings, hopefully temporary, 768 Meters

== Misc. ==
*'''[http://secondlife.com/currency/describe-limits.php Billing and Trading Limits]''' - Includes [http://secondlife.com/whatis/economy-market.php LindeX] currency exchange limits.
*'''Contacts in Communication > Friends tab ''' - A maximum of 20 simultaneous contacts can be selected to change permissions, remove, or invite for a conference chat.

== Navigation ==
[[File:Max Alt.jpg|thumb|right|435px|'''Height counter error above 2147483647 meters''']]
* '''Absolute height limit''' - [http://en.wikipedia.org/wiki/2147483647#2147483647_in_computing 2147483647] = 231 − 1 meters, which causes the altitude counter to roll over. Altitudes well below this cause graphics errors probably due to limited floating point number precision.
* '''Highest z-value of an [[SLurl]], that will still teleport you to a positive altitude''' - 2147483583
** This is lower than the ''Absolute height limit'' above probably because of precision issues. Any value higher than 2147483583 would be rounded up to something beyond 2147483647 and thus cause an [http://en.wikipedia.org/wiki/Arithmetic_overflow overflow], while 2147483583 will still be rounded down to 2147483520 (see below).
* '''Highest altitude you can teleport to with an SLurl''' - 2147483520 m

== Profile ==
Each 7-bit ASCII character is encoded in one byte. International characters might need more bytes. When pasting text instead of typing, you can get in one byte more into each of the below.

*'''2nd Life tab's About field''' - 510 bytes
*'''Picks tab''' - 10 picks with 1022 bytes each
*'''1st Life tab's Info field''' - 253 bytes
"'''Classified tab''' - 100 listings with x bytes each
*'''My Notes''' - 1022 bytes

== Performance ==
* '''Healthy Viewer FPS''' - Generally, FPS above 15 is good. The higher it gets, the smoother. You can check via Help menu > Lag Meter, or for more advanced usage, see View menu > Statistics Bar.
* '''Avatar Rendering Cost scores''' - [http://blog.secondlife.com/2008/05/01/who-me-yes-you-couldnt-be-then-who-introducing-avatar-rendering-cost/ Learn all about it!]

== Scripting ==
* '''Height at which scripts reactivate on a no-script parcel''' - 50 m above terrain mesh. Scripted objects that take controls continue to remain active when you fly down.
* For specific scripting limits, lookup calls in the '''[[LSL Portal]]'''.

== Textures ==
* '''Aspect ratios''' of profile, place, etc. pictures — all of these were measured at UI size = 1.000:
** '''Search > All for "Classifieds", "People", and "Places"''' - 4:3 (256x192 pixels)
** '''Search > Places and Classified tabs''' - ~7:5 (398x282 pixels)
** '''Search > Land tab''' - ~7:5 (358x252 pixels)
** '''Profile > 2nd Life tab''' - ~4:3 (178x133 pixels)
** '''Profile > Picks tab''' - ~16:9 (288x162 pixels)
** '''Profile > 1st Life tab''' - 1:1 (133x133 pixels)
** '''Profile > Classifieds tab''' - ~3:2 (206x137 pixels)
** '''Profile > Web tab''' - 1:1 (400x400 pixels)
*** A scrollbar uses 15 pixels on the right-hand side.
** '''About Land > Options tab''' - ~3:2 (178x117 pixels)
** '''Group Information > General tab's "Group Insignia"''' - 1:1 (126x126 pixels)
*** Some of these textures are shared (for example, Search > All place pages, Search > Places, and About Land > Options use the same image), so you should pick a well-balanced ratio and size.
*** [http://blogs.secondlife.com/community/community/tnt/blog/2009/08/27/guide-end-squashed-images-get-correct-texture-aspect-ratios Learn how to get correct texture aspect ratios when editing images.]

* '''Maximum texture size''' - 1024x1024 pixels
** All Second Life textures are constrained to [http://en.wikipedia.org/wiki/Power_of_2 powers of 2] (e.g., 128, 256, 512).
** Some textures inworld have a resolution as high as 2048x2048; this is due to a previous limit that was higher.
** We strongly recommend you use as small textures as possible because larger ones consume more memory and take substantially longer to load. See [[Avatar Rendering Cost]].

[[Category:Creation]] [[Category:Tutorials]] [[Category:Lists]]

User:Arawn Spitteler

2009-10-13T20:23:13Z

Arawn Spitteler: Created page with 'I'd like to save the World: it would give me something to do; the World needs saving; it's what I know how to do. It's really just finding a place to start. Lao Tzu warns again...'

I'd like to save the World: it would give me something to do; the World needs saving; it's what I know how to do. It's really just finding a place to start.

Lao Tzu warns against Wealth, for Wealth costs something to protect against the Jealous. A Zigurat can rise from the Flood Plain, if it's supported, largely as a reference point, but it's then obliged to remain lofty. Poverty is the presence not supported by the environment but, how does Elvis leave the Stadium?

I'm normally found as a Jackal, with large Shiyal Shingi, but Sumer doesn't seem to be the only place to remember me as a God of some sort. It's unlikely, that any given person is any given God, but the possibility is more intellectually challenging to swallow.

If you're needing a Scripting Mentor, I could use a bit of coin. First thing to know, is that you may be patient, with yourself; second thing, is you should try what you want to, for others will also be patient with you, as you sit there whimpering piteously. Good programmers try to get through that part, but it's a long and winding road, that leads to your door, and most programmers stop short of Self Knowledge.

"Just as all the purposes of a well, can be served by a lake," quoth Krishna, " so can all the purposes of the Veda be served by knowing the Purpose of the Veda." The Purpose of The Veda is to share in the Path of Enlightenment, but it's hard to really know that and, I'm just guessing.

Mixed Reality

2009-08-04T18:10:55Z

Arawn Spitteler: Creates page for Mixed Reality

{{wikify}}

Mixed Reality seems to refer to an event which exists in both a Virtual Reality and in the more traditional Must Believe Reality, as when a minstrel performs in a pub in Peterborough, and also streams media into a parcel within Second Life.

This stub created especially for the Lyre of Ur Project.

Bug triage/2009-02-23

2009-02-16T15:50:32Z

Arawn Spitteler:

{{Bug triage}}

<onlyinclude>
{{Triage Template/schedule
|Date=2009-02-16
|Time=12:00 PM SLT
|Place={{SLurl|region=Hippotropolis|x=241|y=27|z=23|title=Hippotropolis Meeting area}}
|}}
</onlyinclude>
Next meeting: {{#var:date}} at {{#var:time}} at {{#var:place}}. See [[Bug triage]] for details.

== Fast Track Import ==
(Move bugs here that have solid repros, or valid patches that you have reviewed)

== Hot by Vote ==
[http://www.sljirastats.com/jira_search.php?search=33&output=wiki High Voted Bugs]

* {{jira|SVC-3114}} - Votes: 23 - FAILED TELEPORTS - {{User|wayfinder wishbringer}}
** This JIRA resolved as dupe of the above: {{jira|VWR-10769}} - Votes: 16 - Non average number of teleport failures. - {{User|Kouta Ruska}}

== Patches ==
[http://www.sljirastats.com/jira_search.php?search=34&output=wiki Patches]

== Misc Pool ==
[http://www.sljirastats.com/jira_search.php?search=35&output=wiki Misc Pool]

* {{jira|SVC-758}} - Votes: 2 - Assigning key as list element at declare time in the global scope converts it to a string. - {{User|Siann Beck}}
** Old issue, no recent updates. [[User:Gordon_Wendt|''GW'']] ([[User talk:Gordon_Wendt|T]]|[[Special:Contributions/Gordon Wendt|C]]) -- 06:50, 15 February 2009 (UTC)
** Issue reopened and updated after this resolution --[[User:Harleen Gretzky|Harleen Gretzky]] 18:35, 15 February 2009 (UTC)
* {{jira|VWR-2987}} - Votes: 0 - Inventory > Library > Textures > Sculpt Textures > Surface Textures > orange 1 should be stem 2 - {{User|Daedalus Young}}
** Old issue, no recent updates. [[User:Gordon_Wendt|''GW'']] ([[User talk:Gordon_Wendt|T]]|[[Special:Contributions/Gordon Wendt|C]]) -- 06:50, 15 February 2009 (UTC)
** Checked, issue still exists in RC 1.22.9 --[[User:Harleen Gretzky|Harleen Gretzky]] 18:58, 15 February 2009 (UTC)
* {{jira|VWR-4315}} - Votes: 2 - When I try to click on one of my HUD objects, meant to respond, it doesn't, and if I give a command to a tool/gadget, meant to recognize it, it dosn't - {{User|Steven Wilberg}}
** See also {{jira|VWR-8215}} - Votes: 7 - After login, sometimes Mouse steering on avatar and HUDs don't work (discussed during Bug Triage 2009/02/12) - {{User|Opensource Obscure}}
* {{jira|SVC-3813}} - Votes: 1 - Selecting "Share with group" fails if "Transfer" is not enabled. - {{User|Aargle Zymurgy}}
* {{jira|VWR-9204}} - Votes: 1 - Clicking the mute button from a dialog when receiving a landmark or a notecard (spam) will crash the viewer if there are pending notifications behind the dialog - {{User|Tasty Tiramisu}}
* {{jira|VWR-11887}} - Votes: 0 - Radeon HD 4670 graphics card does not work with the SL client (the graphics card will not even be used (0% activity reported by it while Second Life is open)). - {{User|Pawz Tomcat}}
* {{jira|WEB-814}} - Votes: 11 - cannot post event where land's landing point's Z is > 768

* {{jira|VWR-11930}} - Votes: 0 - Teleporting either Disconnects or Crashes SL - {{User|Flurry Parx}}

* {{jira|VWR-12028}} - Votes: 0 - Crach evrytime on entering sim badlands - {{User|Alexandrea Fride}}
* {{jira|VWR-11696}} - Votes: 0 - Objects disappear at different viewing angles with .png textures but not .jpg - {{User|Sentire Bravin}}
* {{jira|WEB-810}} - Votes: 0 - search.secondlife.com uses meta tag redirection instead of RedirectMatch (or similar) .htaccess rule. - {{User|SignpostMarv Martin}}
* {{jira|WEB-641}} - Votes: 0 - nonsensical output in voicemap API - {{User|SignpostMarv Martin}}

== Pre-meeting activity ==
Some issues will be resolved in the course of building this agenda. Rather than deleting them from the proposed agenda, move the issue and associated discussion into the appropriate section below.

=== Imported ===

=== Resolved ===

* {{jira|VWR-2578}} - Votes: 3 - Blocky Default Particle Sprites - {{User|Harke Hartnell}}
** Old issue, no recent updates. [[User:Gordon_Wendt|''GW'']] ([[User talk:Gordon_Wendt|T]]|[[Special:Contributions/Gordon Wendt|C]]) -- 06:24, 15 February 2009 (UTC)
* {{jira|VWR-12019}} - Votes: 2 - Voice Chat - Device Settings Wizard Fails - {{User|Dirk Talamasca}}
** Fixed, resolved as such. [[User:Gordon_Wendt|''GW'']] ([[User talk:Gordon_Wendt|T]]|[[Special:Contributions/Gordon Wendt|C]]) -- 06:50, 15 February 2009 (UTC)
* {{jira|WEB-948}} - Votes: 1 - economy_stats.php unchanged since January 16, 2009 - {{User|Adz Childs}}
** Dupe of {{jira|WEB-295}} which has itself been resolved. [[User:Gordon_Wendt|''GW'']] ([[User talk:Gordon_Wendt|T]]|[[Special:Contributions/Gordon Wendt|C]]) -- 06:50, 15 February 2009 (UTC)
* {{jira|VWR-6193}} - Votes: 1 - Beacon turns 'invisible' at larger distances - {{User|Daedalus Young}
** Old issue, no recent updates. [[User:Gordon_Wendt|''GW'']] ([[User talk:Gordon_Wendt|T]]|[[Special:Contributions/Gordon Wendt|C]]) -- 06:50, 15 February 2009 (UTC)
* {{jira|WEB-300}} - Votes: 1 - Passwords with special characters fail to login - {{User|Steve Patel}}
** Old issue, no recent updates. [[User:Gordon_Wendt|''GW'']] ([[User talk:Gordon_Wendt|T]]|[[Special:Contributions/Gordon Wendt|C]]) -- 06:50, 15 February 2009 (UTC)
* {{jira|VWR-4277}} - Votes: 1 - different simulator version message has unclickable links - {{User|Dedric Mauriac}}
** Old issue, no recent updates. [[User:Gordon_Wendt|''GW'']] ([[User talk:Gordon_Wendt|T]]|[[Special:Contributions/Gordon Wendt|C]]) -- 06:50, 15 February 2009 (UTC)
* {{jira|SVC-3182}} - Votes: 0 - Payment received by one vendor ended up in another avatar's transaction history - {{User|Timeless Prototype}}
** '''ISSUE HAS BEEN DISAPPEARED BY THE LINDENS. Since most of us can't see the issue to help debug it because we are not worthy this issue can't be properly triaged.''' [[User:Gordon_Wendt|''GW'']] ([[User talk:Gordon_Wendt|T]]|[[Special:Contributions/Gordon Wendt|C]]) -- 06:50, 15 February 2009 (UTC)
* {{jira|VWR-8374}} - Votes: 0 - bandwidth indicator does not fit - {{User|wulfric chevalier}}
** Currently resolved as NMI. [[User:Gordon_Wendt|''GW'']] ([[User talk:Gordon_Wendt|T]]|[[Special:Contributions/Gordon Wendt|C]]) -- 06:50, 15 February 2009 (UTC)
* {{jira|VWR-7035}} - Votes: 0 - Closing dialogue causes uploading message to disappear - {{User|Haravikk Mistral}}
** Old issue, no recent updates. [[User:Gordon_Wendt|''GW'']] ([[User talk:Gordon_Wendt|T]]|[[Special:Contributions/Gordon Wendt|C]]) -- 06:50, 15 February 2009 (UTC)
* {{jira|VWR-8214}} - Votes: 0 - Removing last friend does not clear friends list until relog - {{User|sydney pinion}}
** Old issue, no recent updates. [[User:Gordon_Wendt|''GW'']] ([[User talk:Gordon_Wendt|T]]|[[Special:Contributions/Gordon Wendt|C]]) -- 06:50, 15 February 2009 (UTC)
* {{jira|SVC-2069}} - Votes: 0 - Bumpy Flight - {{User|WarKirby Magojiro}}
** NMI. [[User:Gordon_Wendt|''GW'']] ([[User talk:Gordon_Wendt|T]]|[[Special:Contributions/Gordon Wendt|C]]) -- 06:50, 15 February 2009 (UTC)
* {{jira|VWR-3063}} - Votes: 0 - Crash during tp - {{User|Luxarnia Dagger}}
** Issue was resolved as NMI, no changes since. [[User:Gordon_Wendt|''GW'']] ([[User talk:Gordon_Wendt|T]]|[[Special:Contributions/Gordon Wendt|C]]) -- 06:50, 15 February 2009 (UTC)
* {{jira|VWR-3034}} - Votes: 0 - Scrolling in text boxes in the client is broken - {{User|Domchi Underwood}}
** Needs more info. [[User:Gordon_Wendt|''GW'']] ([[User talk:Gordon_Wendt|T]]|[[Special:Contributions/Gordon Wendt|C]]) -- 06:50, 15 February 2009 (UTC)
* {{jira|VWR-3032}} - Votes: 0 - Linked parts, when copied will unlink the original copied from - {{User|Marc Montague}}
** Already resolved as NMI, no updates since. [[User:Gordon_Wendt|''GW'']] ([[User talk:Gordon_Wendt|T]]|[[Special:Contributions/Gordon Wendt|C]]) -- 06:50, 15 February 2009 (UTC)
* {{jira|SVC-2375}} - Votes: 0 - llSetClickAction in a linked set only affects click status of root prim - {{User|Francisco Koolhoven}}
** Old issue, no recent updates. [[User:Gordon_Wendt|''GW'']] ([[User talk:Gordon_Wendt|T]]|[[Special:Contributions/Gordon Wendt|C]]) -- 06:50, 15 February 2009 (UTC)
** Resolved as Expected Behavior --[[User:Harleen Gretzky|Harleen Gretzky]] 18:50, 15 February 2009 (UTC)

== Transcript ==
Transcript is/will be at [[Bug triage/{{#var:date}}/Transcript]]

== Creating An Agenda ==
{{Bug List Instructions}}

Talk:LSL HTTP server/beta

2009-01-15T21:38:38Z

Arawn Spitteler: /* Sandbox Status */ new section

Kelly: you write "With Mono, compilation is done server side. So make sure you select the Mono checkbox and you will be able to compile a script with the new functions as long as you are in one of the http-in sandboxes."

As we discovered when tracking down a bug in the new sculpt constants, the code in lscript_compile/indra.l didn't match what actually compiles when you hit "save". It was revealed that ALL compilation is now being done on the server, not just Mono. -- [[User:Argent Stonecutter|Argent Stonecutter]] 15:14, 17 October 2008 (PDT)

This has been verified (see [http://forums.secondlife.com/showthread.php?t=287764 forum thread here]), updated the page to match. -- [[User:Argent Stonecutter|Argent Stonecutter]] 14:22, 18 October 2008 (PDT)

== Sandbox Status ==

I'm unable to enter the HTTP_In Sandbox, in Beta. Is there a channel on its availability? I'm wondering if I should simply file a support request, with my basic account.

Http

2009-01-14T19:58:35Z

Arawn Spitteler: New page: {{wikify}} [http://en.wikipedia.org/wiki/Hyper_Text_Transfer_Protocol HTTP Hypertext_Transfer_Protocol]

{{wikify}}
[http://en.wikipedia.org/wiki/Hyper_Text_Transfer_Protocol HTTP Hypertext_Transfer_Protocol]

LlSitTarget

2008-08-25T13:16:09Z

Arawn Spitteler: Added comments on Agent Target, to close issue http://jira.secondlife.com/browse/SVC-2901

{{LSL_Function
|func_id=238|func_sleep=0.0|func_energy=10.0
|sort=SitTarget
|func=llSitTarget
|p1_type=vector|p1_name=offset|p1_desc=Additional position for the sit target local to the prim.
|p2_type=rotation|p2_name=rot|p2_desc=Additional rotation for the sit target local to the prim.
|func_footnote=If '''offset''' == [[ZERO_VECTOR|{{LSL VR|0.0|0.0|0.0}}]] then the sit target is removed.
|func_desc=Set the sit location for the prim. The sit location is relative to the prim's position and rotation.
|return_text
|spec
|caveats=*Once a sit target is removed [[llAvatarOnSitTarget]] will only return {{LSL_Constant/NULL_KEY}}.
*There is no way to remove the Sit option from the pie menu.
**It will appear to be removed if the [[llSetSitText]] is set to a space " ".
*Attachments cannot be sat upon.
*Sit Target sets the position for the Agent Target, Advanced -> Character -> View Agent Target, and has a displacement that will require a bit of examination.
**llSetLinkPrimitiveParams seems to be the easy work-around.
**Animation is relative to the Agent Target, but the Agent Target isn't described by the animation.
*[[llSitTarget]] does not update position of an already seated avatar.
**[[#UpdateSitTarget|UpdateSitTarget]] described below works around this problem. It works by converting the sit target information into a link position that can be passed along to [[llSetLinkPrimitiveParams]].
|constants
|examples=
<lsl>default
{
state_entry()
{
llSitTarget(<0.0, 0.0, 1.0>, ZERO_ROTATION); //The vector's components must not all be set to 0 for effect to take place.
}
}</lsl>
|helpers= ===UpdateSitTarget===
<lsl>//Sets / Updates the sit target moving the avatar on it if necessary.
UpdateSitTarget(vector pos, rotation rot)
{//Using this while the object is moving may give unpredictable results.
llSitTarget(pos, rot);//Set the sit target
key user = llAvatarOnSitTarget();
if(user)//true if there is a user seated on the sittarget, if so update their position
{
vector size = llGetAgentSize(user);
if(size)//This tests to make sure the user really exists.
{
//We need to make the position and rotation local to the current prim
rotation localrot = ZERO_ROTATION;
vector localpos = ZERO_VECTOR;
if(llGetLinkNumber() > 1)//only need the local rot if it's not the root.
{
localrot = llGetLocalRot();
localpos = llGetLocalPos();
}
pos.z += 0.4;
integer linkNum = llGetNumberOfPrims();
do{
if(user == llGetLinkKey( linkNum ))//just checking to make sure the index is valid.
{
llSetLinkPrimitiveParams(linkNum,
[PRIM_POSITION, ((pos - (llRot2Up(rot) * size.z * 0.02638)) * localrot) + localpos,
PRIM_ROTATION, rot * localrot / llGetRootRotation()]);
jump end;//cheaper but a tad slower then return
}
}while( --linkNum );
}
else
{//It is rare that the sit target will bork but it does happen, this can help to fix it.
llUnSit(user);
}
}
@end;
}//Written by Strife Onizuka, size adjustment provided by Escort DeFarge</lsl>
===GetSitTarget===
<lsl>list GetSitTarget(integer prim, key av)
{//WARNING: llGetObjectDetails can introduce an error that goes as far as the 5th decimal place!
//This is highly unlikely to be ever noticed unless compounded over time.
//Do not use while moving (like in a moving vehicle)!!!
vector tp = llGetAgentSize(av);
if(tp)
{
if(prim == LINK_THIS)//llGetLinkKey doesn't like LINK_THIS
prim = llGetLinkNumber();

list details = [OBJECT_POS, OBJECT_ROT];
rotation f = llList2Rot(details = (llGetObjectDetails(llGetLinkKey(prim), details) + llGetObjectDetails(av, details)), 1);
rotation r = llList2Rot(details, 3) / f;

return [((llList2Vector(details, 2) - llList2Vector(details, 0)) / f) + (llRot2Up(r) * tp.z * 0.02638) - <0.0, 0.0, 0.4>, r];
}
return [];
}//Written by Strife Onizuka</lsl>
|also_functions={{LSL DefineRow||[[llSetSitText]]|}}
{{LSL DefineRow||[[llAvatarOnSitTarget]]|}}
{{LSL DefineRow||[[llUnSit]]|}}
|also_events={{LSL DefineRow||[[changed]]|}}
|also_articles
|notes
|cat1=Sit
|cat2=Vehicle
|cat3=Prim
|cat4=Effects
|cat5=Teleport
|cat6
}}