Project:Flagged Revs Backup/Numerical limits within the Second Life world

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 some of the Second Life numerical limits that affect your inworld experience.

Building

• Max. prim dimensions (non-megaprim) - 10 x 10 x 10 m
• Min. prim dimensions - 0.01 x 0.01 x 0.01 m
• Max. # of prims in a linkset - 256
• Max. link distance - See Linkability Rules.
• Max. # of prims in a physical object - 32
  • Note that this limit includes the driver and passengers of physics-enabled vehicles, for example, if you're making a car to sit 4 people, 28 prims are available for the car itself
• Max. build height
  • 4,096 m for Second Life Viewers later than 1.20.x
  • 768 m for Second Life Viewers prior to 1.20.x

Avatar

• Max. # of attachment points - 30 for avatar, 8 for HUD
  • These can be viewed in Edit > Detach Object
• Max. unassisted fly height - Stable hover almost 150 m above the ground (terrain mesh)

Chat (text)

• Whisper distance - 10 m
• Chat distance - 20 m
• Shout distance - 100 m

Groups

• Max. # of groups you can belong to - 25
• Min. # of members in a group - 2
  • A group with only 1 person for 48 hours will be disbanded
• Max. # of roles allowed in a group - 10 (including Owner and Everyone roles, which cannot be deleted)

Inventory

• Max. # of inventory items that can be sent in a folder - 42

Land

• Max. parcel size - 65,536 m2
• Min. parcel size - 16 m2
• Max. "NO ENTRY" ban line height - 768 m above the terrain mesh if you're explicitly banned from a parcel
  • If the parcel is restricted to certain Residents or a group, or simply not public access, then the access lines go up to 50 m above the terrain mesh
• Max. prims in a Region
• ** Full-sized Region - 15,000
  • Homestead - 3,750
  • Openspace - 750
• Terraforming limits
  • Mainland Regions can be raised/lowered by +/-4 m
  • Estate (Private Region) can be raised/lowered by +/-100 m
• Max. water height - Default height is 20 m; terraforming limits apply to water height limits
  • Adjacent regions with varying water heights can look discontinuous
• Misc. Estate limits
  • Max. of 10 Estate managers
  • 500 allowed Residents
  • 63 allowed groups
  • 500 banned Residents
    • See Region/Estate window's Estate tab
• Mainland max. # of agents - 40 avatars/Region
• Private region max. # of agents - 100 avatars/Region
• Private Region Object Bonus - Range of 1-10

For additional numerical limits for the above categories along with performance, scripting and textures, visit the Resident-contributed "Limits" wiki page.