Portal:Env Fire fix: Difference between revisions

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{{DISPLAYTITLE: Portal - env_fire Fix}}
{{back| Portal Level Creation}}
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The [[Env_fire]] entity is broken in portal. There's actually a fixable reason as to why this is.
The [[env_fire]] entity is broken in Portal. There's actually a fixable reason as to why this is.


In the Source engine, the Env_fire entity looks for the particle "fire_01.pcf" to use.
In the Source engine, the Env_fire entity looks for the particle "fire_01.pcf" to use.
This contains all the necessary particles, like smoke, large/medium/small fires, etc. In Half Life 2, this works fine.
This contains all the necessary particles, like smoke, large/medium/small fires, etc. In Half-Life 2, this works fine.


However, in Portal, the fire pit particles seen at the end of the test chambers are also named "fire_01.pcf".
However, in Portal, the fire pit particles seen at the end of the test chambers are also named "fire_01.pcf".
This creates some conflicts, as the Env_fire can't find the correct particles within the Portal fire pit particle system. This is further complicated by the absence of any Env_fires in the original Portal.
This creates some conflicts, as the Env_fire can't find the correct particles within the Portal fire pit particle system.
Had any been placed during development, this problem would have been dealt with far before Portal was released.


This fix tells portal that the env_fire entity can use fire_02 (a renamed fire_01 from half life 2). If you distribute a map with an env_fire in it, you MUST include this fix! Otherwise your mapwill be broken!
This fix tells Portal that the env_fire entity can use fire_02.pcf (the renamed fire_01.pcf from Half-Life 2). If you distribute a map with an env_fire in it, you MUST include this fix! Otherwise your map will be broken!


==Env_fire Fix==
There are a few issues with the fix, however.  First, some have reported that the fire is mute (no sound).  Second, the "Fire Size" keyvalue has no effect on the ingame fire; it remains the same size no matter what value the entry has (thanks to reepblue for pointing that one out).


[http://www.myaperturelabs.com/file.php?id=256 Env_fire fix] by NocturnalGhost, packaged by [[user:WinstonSmith|WinstonSmith]]
{{Note|Additionally, this bug also caused the game to crash (only in build 9530103, which upgraded {{portal|1}} to {{hl2}}'s 20th Anniversary Update version of {{src13sp|1}}), which led to Valve reverting the game back to the previous version.}}
 
[https://myapertureinnovations.com/mal/maps/WinstonSmith/Portal%20Env_Fire%20Fix.zip Download here.] by NocturnalGhost, packaged by [[user:WinstonSmith|WinstonSmith]]


[[Category:Level Design Tutorials]]
[[Category:Portal]]
[[Category:Portal]]
[[Category:Particle System]]
[[Category:Tutorials]]

Latest revision as of 05:44, 25 April 2025

Portal Level Creation

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The env_fire entity is broken in Portal. There's actually a fixable reason as to why this is.

In the Source engine, the Env_fire entity looks for the particle "fire_01.pcf" to use. This contains all the necessary particles, like smoke, large/medium/small fires, etc. In Half-Life 2, this works fine.

However, in Portal, the fire pit particles seen at the end of the test chambers are also named "fire_01.pcf". This creates some conflicts, as the Env_fire can't find the correct particles within the Portal fire pit particle system.

This fix tells Portal that the env_fire entity can use fire_02.pcf (the renamed fire_01.pcf from Half-Life 2). If you distribute a map with an env_fire in it, you MUST include this fix! Otherwise your map will be broken!

There are a few issues with the fix, however. First, some have reported that the fire is mute (no sound). Second, the "Fire Size" keyvalue has no effect on the ingame fire; it remains the same size no matter what value the entry has (thanks to reepblue for pointing that one out).

Note.pngNote:Additionally, this bug also caused the game to crash (only in build 9530103, which upgraded Portal to Half-Life 2's 20th Anniversary Update version of Source 2013 Singleplayer), which led to Valve reverting the game back to the previous version.

Download here. by NocturnalGhost, packaged by WinstonSmith