SimulatorFeatures

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=== OpenSim ===
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=== OpenSimExtras ===
  
 
OpenSimExtras items in particular are configured in several places through the code, and configuration files, even some modules may override what was defined by others.<br>
 
OpenSimExtras items in particular are configured in several places through the code, and configuration files, even some modules may override what was defined by others.<br>

Revision as of 13:31, 12 November 2020

Contents

SimulatorFeaturesModule

This information is based on the current OpenSim development version. This has changed over time, occasionally in incoherent ways.

Overview

The SimulatorFeaturesModule provides support to the mechanism by which client programs (viewers) request information about some features or properties of a region, for example Bakes on mesh (BOM) support, version of LSL/OSSL syntax, etc.
Viewer should ask for this information every time they see a new region. Unfortunately some of this may require that the viewer already created an avatar on that region. This information is sent via HTTP with llsd xml encoding. Some information specific to OpenSimulator is sent in a section (llsd map) OpenSimExtras.

Configuration

Some parameters are constant and defined in code. Others are defined by specific modules, some of which are optional. In fact, the SimulatorFeaturesModule itself is also optional.
The facilities available via the module are also very dependent on the OpenSimulation version or flavor. This is a consequence of legacy decisions, unmanageable modularity and configurability, and blind selfish forking. More work is needed to provide consistency, in particular because some of this information is not optional at all if one likes to have viewers that work correctly.


OpenSimExtras

OpenSimExtras items in particular are configured in several places through the code, and configuration files, even some modules may override what was defined by others.
A few examples on regions configuration: 

[SimulatorFeatures]
 
   ; Override search service url
   SearchServerURI = "url to search service"
 
   ; Override destination guide url
   DestinationGuideURI = "url to destination guide"
 
   ; Override map service url
   ;(this may be set in one of several other locations, but we can use this to be consistent)
   MapTileURL = "url to map service"
 
[Chat]
 
   ; Distance in meters that ordinary chat should travel.  Default is 20m
   say_distance = 20
   ; Controls whether the chat module is enabled.  Default is true.
   enabled = true;
   ; Distance in meters that whispers should travel.  Default is 10m
   whisper_distance = 10
   ; Distance in meters that shouts should travel.  Default is 100m
   shout_distance = 100


Grid can send information to regions to override local settings, a example from robust.ini

[Hypergrid]
;...
  GatekeeperURI ="http://my.grid.host:9004"
  GatekeeperURIAlias = "http://my.oldgrid.host:9004,http://my.localgrid.host:8003"
...

GatekeeperURI will be sent as GridURL, and GatekeeperURIAlias as GridURLAlias


WARNING the information sent about current region grid is only to help viewers to identify grid changes and identify if a url points to a local region or a region on another grid. This information should not be used to replace any permanent information, like information used by viewers grid manager. The Authority for permanent grid information is the Grid service, not regions. The region information may even be incorrect since many regions are configured by end users with little skills restling with the current over complex OpenSimulator configuration

example of data sent to viewer (dev 0.9.2 version) 

<llsd><map>
  <key>MeshRezEnabled</key><boolean>1</boolean>
  <key>MeshUploadEnabled</key><boolean>1</boolean>
  <key>MeshXferEnabled</key><boolean>1</boolean>
  <key>BakesOnMeshEnabled</key><boolean>1</boolean>
  <key>PhysicsMaterialsEnabled</key><boolean>1</boolean>
  <key>PhysicsShapeTypes</key><map>
      <key>convex</key><boolean>1</boolean>
      <key>none</key><boolean>1</boolean>
      <key>prim</key><boolean>1</boolean>
    </map> 
  <key>LSLSyntaxId</key><uuid>0ca3945b-ad46-5155-6d66-6b6c74370dd2</uuid>
  <key>AnimatedObjects</key><map>
      <key>AnimatedObjectMaxTris</key><integer>150000</integer>
      <key>MaxAgentAnimatedObjectAttachments</key><integer>2</integer>
    </map>
  <key>MaxAgentAttachments</key><integer>38</integer>
  <key>MaxAgentGroupsBasic</key><integer>60</integer>
  <key>MaxAgentGroupsPremium</key><integer>60</integer>
  <key>OpenSimExtras</key><map>
      <key>AvatarSkeleton</key><boolean>1</boolean>
      <key>AnimationSet</key><boolean>1</boolean>
      <key>MinSimHeight</key><real>-100</real>
      <key>MaxSimHeight</key><real>50000</real>
      <key>MinHeightmap</key><real>-100</real>
      <key>MaxHeightmap</key><real>4000</real>
      <key>currency-base-uri</key><string>http://my.grid.host:9000/</string>
      <key>map-server-url</key><string>http://my.grid.host:9004/</string>
      <key>ExportSupported</key><string>true</string>
      <key>SimulatorFPS</key><real>11.001100540161133</real>
      <key>SimulatorFPSFactor</key><real>4.9994997978210449</real>
      <key>SimulatorFPSWarnPercent</key><integer>60</integer>
      <key>SimulatorFPSCritPercent</key><integer>40</integer>
      <key>MinPrimScale</key><real>0.0010000000474974513</real>
      <key>MaxPrimScale</key><real>1024</real>
      <key>MinPhysPrimScale</key><real>0.0099999997764825821</real>
      <key>MaxPhysPrimScale</key><real>64</real>
      <key>GridName</key><string>testgridLocal</string>
      <key>GridNick</key><string>testgridLocal</string>
      <key>GridURL</key><string>http://my.grid.host:9004</string>
      <key>GridURLAlias</key><string>http://my.oldgrid.host:9004,http://my.localgrid.host:8003</string>
      <key>search-server-url</key><string>http://my.grid.host:9004/</string>
      <key>destination-guide-url</key><string>http://my.grid.host:80/guide/</string>
      <key>say-range</key><integer>20</integer>
      <key>whisper-range</key><integer>10</integer>
      <key>shout-range</key><integer>100</integer>
    </map>
  <key>AvatarHoverHeightEnabled</key><boolean>1</boolean>
  <key>menus</key><map>
      <key>agent</key><map>
        </map>
      <key>world</key><map>
        </map>
      <key>tools</key><map>
        </map>
      <key>advanced</key><map>
        </map>
      <key>admin</key><map>
        </map>
    </map>
  <key>MaxMaterialsPerTransaction</key><integer>50</integer>
  <key>RenderMaterialsCapability</key><real>3</real>
</map></llsd>
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