Instance: Difference between revisions
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Note:While working inside Hammer for all Source games, instances are currently only supported by the map compilers for Left 4 Dead 2, Alien Swarm and Portal 2, and will therefore not work for any other games.
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An '''instance''' is a [[VMF|map (.vmf) file]] referenced inside another map through a [[func_instance]], possibly aided by a [[func_instance_parms]]. | An '''instance''' is a [[VMF|map (.vmf) file]] referenced inside another map through a [[func_instance]], possibly aided by a [[func_instance_parms]] and/or [[func_instance_io_proxy]]. | ||
{{note|While working inside [[Hammer]] for all Source games, instances are currently only supported by the [[Left 4 Dead 2]] | {{note|While working inside [[Hammer]] for all Source games, instances are currently only supported by the map compilers for [[Left 4 Dead 2]], [[Alien Swarm]] and [[Portal 2]], and will therefore not work for any other games.}} | ||
Instances are helpful in many ways: | Instances are helpful in many ways: | ||
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== Manifests == | == Manifests == | ||
{{todo|}} | {{todo|}} | ||
== Also see == | == Also see == | ||
* [[ | * [[L4D2 Level Design/VMF Instances]] - A Valve tutorial on how to use instances in Left 4 Dead 2. | ||
[[Category:Glossary]] | [[Category:Glossary]] | ||
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[[Category:Left 4 Dead 2]] | [[Category:Left 4 Dead 2]] | ||
[[Category:Alien Swarm]] | [[Category:Alien Swarm]] | ||
[[Category:Portal 2]] |
Revision as of 12:07, 2 May 2011
An instance is a map (.vmf) file referenced inside another map through a func_instance, possibly aided by a func_instance_parms and/or func_instance_io_proxy.

Instances are helpful in many ways:
- They provide a more dynamic alternative to prefabs, as any changes to the instanced map will be reflected in all instances of it.
- They provide an alternative to visgroups, as they can be used to divide a large, unwieldy map into several smaller, manageable ones (that can even be worked on by multiple authors simultaneously).
- They provide a simple way to edit portions of a map that needs to be at a non-orthogonal angle. (Build the map on-grid inside a separate map, and then instance it into another map through a func_instance rotated at the correct angle.
- They provide a way for maps to work on multiple platforms, such as Left 4 Dead and Left 4 Dead 2 versions of the same map.
Manifests
[Todo]
Also see
- L4D2 Level Design/VMF Instances - A Valve tutorial on how to use instances in Left 4 Dead 2.