Linkability Rules - Revision history

Vincent Nacon: marking outdated info

2023-07-02T01:48:53Z

marking outdated info

← Older revision		Revision as of 18:48, 1 July 2023
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			{{Obsolete\|Max distance has been raised from 54m to 64m as of 2023/06/27. Update was announced here. [https://community.secondlife.com/blogs/entry/13626-coming-soon-server-release-202306/ Tech Updates Server Release 2023.06]}}
	{{Multi-lang}}		{{Multi-lang}}
	= New Linkability Rule =		= New Linkability Rule =

Morgaine Dinova at 23:57, 26 August 2011

2011-08-26T23:57:38Z

← Older revision		Revision as of 16:57, 26 August 2011
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	If you are interested in how the old formula worked, see [[Linkability Rules/Havok 4]].		If you are interested in how the old formula worked, see [[Linkability Rules/Havok 4]].

			=== Notes ===
			* [2011-08-27-16:52] Andrew Linden: 54 was the minimum sphere that still contained all of the legacy linkable content.

	[[Category:Havok]]		[[Category:Havok]]

Cerise Sorbet at 19:20, 3 June 2011

2011-06-03T19:20:00Z

← Older revision		Revision as of 12:20, 3 June 2011
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	If you are interested in how the old formula worked, see [[Linkability Rules/Havok 4]].		If you are interested in how the old formula worked, see [[Linkability Rules/Havok 4]].

	[[Category:~~Havok4~~]]		[[Category:Havok]]

Cerise Sorbet at 19:17, 3 June 2011

2011-06-03T19:17:56Z

Show changes

Cerise Resident: /* New Linkability Rule */ 255 children, so 256 prims

2010-12-08T05:46:40Z

New Linkability Rule: 255 children, so 256 prims

← Older revision		Revision as of 22:46, 7 December 2010
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	'''The linkability rule for objects changed as of Dec 2010.''' The main motivation was to make the linkability check more efficient but a consequence is that they are also much simpler. The size-dependency of the prims has been discarded. The only thing that matters is the bounding sphere of the collection of prim centers. The linkability rule can be written as:		'''The linkability rule for objects changed as of Dec 2010.''' The main motivation was to make the linkability check more efficient but a consequence is that they are also much simpler. The size-dependency of the prims has been discarded. The only thing that matters is the bounding sphere of the collection of prim centers. The linkability rule can be written as:

	LINKABLE = {{HoverText\|D\|diameter of the smallest bounding sphere of the collection of prim centers}} < 54 AND {{HoverText\|N\|number of prims in the collection}} < 256		LINKABLE = {{HoverText\|D\|diameter of the smallest bounding sphere of the collection of prim centers}} < 54 AND {{HoverText\|N\|number of prims in the collection}} ≤ 256
	where D = diameter of the smallest bounding sphere of the collection of prim centers		where D = diameter of the smallest bounding sphere of the collection of prim centers
	and N = number of prims in the collection		and N = number of prims in the collection

Strife Onizuka: /* New Linkability Rule */ grammar

2010-12-02T20:36:45Z

New Linkability Rule: grammar

← Older revision		Revision as of 13:36, 2 December 2010
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	{{Multi-lang}}		{{Multi-lang}}
	= New Linkability Rule =		= New Linkability Rule =
	'''The linkability rule for objects changed as of Dec 2010.''' The main motivation was to make the linkability check more efficient but a consequence is that they are also much simpler. The size-dependency of the prims ~~will be~~ discarded. The only thing that ~~will matter~~ is the bounding sphere of the collection of prim centers. The linkability rule can be written as:		'''The linkability rule for objects changed as of Dec 2010.''' The main motivation was to make the linkability check more efficient but a consequence is that they are also much simpler. The size-dependency of the prims has been discarded. The only thing that matters is the bounding sphere of the collection of prim centers. The linkability rule can be written as:

	LINKABLE = {{HoverText\|D\|diameter of the smallest bounding sphere of the collection of prim centers}} < 54 AND {{HoverText\|N\|number of prims in the collection}} < 256		LINKABLE = {{HoverText\|D\|diameter of the smallest bounding sphere of the collection of prim centers}} < 54 AND {{HoverText\|N\|number of prims in the collection}} < 256

Strife Onizuka: /* New Linkability Rule */

2010-12-02T20:34:52Z

New Linkability Rule

← Older revision		Revision as of 13:34, 2 December 2010
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	'''The linkability rule for objects changed as of Dec 2010.''' The main motivation was to make the linkability check more efficient but a consequence is that they are also much simpler. The size-dependency of the prims will be discarded. The only thing that will matter is the bounding sphere of the collection of prim centers. The linkability rule can be written as:		'''The linkability rule for objects changed as of Dec 2010.''' The main motivation was to make the linkability check more efficient but a consequence is that they are also much simpler. The size-dependency of the prims will be discarded. The only thing that will matter is the bounding sphere of the collection of prim centers. The linkability rule can be written as:

	LINKABLE = D < 54 AND N < 256		LINKABLE = {{HoverText\|D\|diameter of the smallest bounding sphere of the collection of prim centers}} < 54 AND {{HoverText\|N\|number of prims in the collection}} < 256
	where D = diameter of the smallest bounding sphere of the collection of prim centers		where D = diameter of the smallest bounding sphere of the collection of prim centers
	and N = number of prims in the collection		and N = number of prims in the collection

Strife Onizuka: /* Some stuff that linked in Havok1 do not link in Havok4. */ grammar

2010-12-02T20:32:10Z

Some stuff that linked in Havok1 do not link in Havok4.: grammar

← Older revision		Revision as of 13:32, 2 December 2010
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	== Bugs ==		== Bugs ==
	===Some stuff that linked in Havok1 ~~do not link~~ in Havok4.===		=== Some stuff that could be linked in Havok1 cannot be linked in Havok4 ===
	The Havok4 linkability limits are larger that Havok1 for most prim collections, however there is indeed a set of objects that were linkable in Havok1 that are NOT linkable in Havok4.		The Havok4 linkability limits are larger that Havok1 for most prim collections, however there is indeed a set of objects that were linkable in Havok1 that are NOT linkable in Havok4.

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	The maximum AABB was actually a box with sides of about 32 meters ==> span was 55.4 meters. So the Havok1 box almost fits inside the 54 diameter sphere used in Havok4... but has some corners that stick out very slightly ==> any house that just barely fits inside the AABB might not link in Havok4.		The maximum AABB was actually a box with sides of about 32 meters ==> span was 55.4 meters. So the Havok1 box almost fits inside the 54 diameter sphere used in Havok4... but has some corners that stick out very slightly ==> any house that just barely fits inside the AABB might not link in Havok4.

	Note that ~~the "AA" means~~ "axis aligned" ~~and that~~ means that if you were to rotate your house... the maximum box would NOT rotate since it was always aligned with the axes of the world (East, North, and Up), and your house would not fit inside the box in its rotated state, and would unlink later after the region suffered a shutdown/load cycle (this was a bug in Havok1), or if you were to take it to inventory in its rotated state and then rez that inventory (it would show up unlinked).		Note that "axis aligned" means that if you were to rotate your house... the maximum box would NOT rotate since it was always aligned with the axes of the world (East, North, and Up), and your house would not fit inside the box in its rotated state, and would unlink later after the region suffered a shutdown/load cycle (this was a bug in Havok1), or if you were to take it to inventory in its rotated state and then rez that inventory (it would show up unlinked).

	===When I link two prims the maximum distance between them does NOT agree with the formula above.===		===When I link two prims the maximum distance between them does NOT agree with the formula above.===

Andrew Linden: /* New Linkability Rules */

2010-12-02T18:08:03Z

New Linkability Rules

← Older revision		Revision as of 11:08, 2 December 2010
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	{{Multi-lang}}		{{Multi-lang}}
	= New Linkability ~~Rules~~ =		= New Linkability Rule =
	'''The linkability ~~rules~~ for objects changed as of Dec 2010.''' The main motivation was to make the linkability check more efficient but a consequence is that they are also much simpler. The size-dependency of the prims will be discarded. The only thing that will matter is the bounding sphere of the collection of prim centers. The linkability rule can be written as:		'''The linkability rule for objects changed as of Dec 2010.''' The main motivation was to make the linkability check more efficient but a consequence is that they are also much simpler. The size-dependency of the prims will be discarded. The only thing that will matter is the bounding sphere of the collection of prim centers. The linkability rule can be written as:

	LINKABLE = D < 54 AND N < 256		LINKABLE = D < 54 AND N < 256

Andrew Linden: /* New Linkability Rules */

2010-12-02T18:07:20Z

New Linkability Rules

← Older revision		Revision as of 11:07, 2 December 2010
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	{{Multi-lang}}		{{Multi-lang}}
	= New Linkability Rules =		= New Linkability Rules =
	'''The linkability rules ~~are changing!~~''' The main motivation was to make the linkability check more efficient, but ~~another~~ consequence is that ~~the rules will be~~ much simpler. The size-dependency of the prims will be discarded. The only thing that will matter is the bounding sphere of the collection of prim centers. The linkability rule can be written as:		'''The linkability rules for objects changed as of Dec 2010.''' The main motivation was to make the linkability check more efficient but a consequence is that they are also much simpler. The size-dependency of the prims will be discarded. The only thing that will matter is the bounding sphere of the collection of prim centers. The linkability rule can be written as:

	LINKABLE = D < 54 AND N < 256		LINKABLE = D < 54 AND N < 256
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	and N = number of prims in the collection		and N = number of prims in the collection

	~~This behavior is currently deployed to the '''Second Life Beta Server''' channel of the test grid (aditi) as of 2010.11.15 13:30. It will soon be deployed in a release candidate on the main grid.~~		[[User:Andrew Linden\|Andrew Linden]] 21:47, 02 December 2010 (UTC)

	[[User:Andrew Linden\|Andrew Linden]] 21:47, ~~15 November~~ 2010 (UTC)

	= Old Linkability Rules =		= Old Linkability Rules =