Adhesion Gel: Difference between revisions

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[[File:Adhesion Gel 2.jpg|right|300px|The beta Adhesion gel]]
[[File:Adhesion Gel 2.jpg|right|300px|Adhesion Gel in-game]]
[[File:Portal 2-signage paint stick.png|right|The unused sign for Adhesion Gel]]
The '''Adhesion Gel''' was a gel type scrapped from the final release of ''[[Portal 2]]'' and can only be found in the ''[[Portal 2 Authoring Tools]]''.


'''Adhesion Gel''' was a [[gel]] type that was cut from  ''[[Portal 2]]''. It did not function and was replaced by [[Reflection Gel]] in the [[Peer Review]] DLC.


== Function ==
== Function ==


The gel was supposed to "paint" the floor, walls or ceiling and the player could walk on the walls and ceiling of the [[Test Chambers]] to resolve the tests.
Adhesion Gel can be "painted" onto surfaces like any other gel. Originally, the gel was supposed to allow the player to walk on the walls and ceiling of test chambers. However, this effect has been removed in the final game. Objects can be coated in Adhesion Gel, but there are no Adhesion Gel-coated textures for anything, so it will not render. The only remaining effect of Adhesion Gel is that objects coated in it will not slide along [[Propulsion Gel]], and vice-versa. The gel was made purple as a placeholder; a final color was never decided on, so it remains purple in the final game.
The only remaining effect of Adhesion Gel is that objects coated in it (although they lack a coated texture) will not slide along [[Repulsion Gel]] on the floor and Vice Versa.


== Problems ==
== Problems ==


According to the ''Portal 2'' developer commentaries, play testers were too disoriented when they had to think with portals while walking on walls and ceilings. Valve had ultimately scrapped the gel as a result.
According to the ''Portal 2'' developer commentary and [[The Final Hours of Portal 2]], play testers were too disoriented when they had to think with portals while walking on walls and ceilings. Valve had ultimately scrapped the gel as a result.


The Adhesion Gel was eventually replaced with [[Reflection Gel]] after an update to the game, which uses the same textures as the [[Conversion Gel]]. The updated gel is not found in the game, but it is usable to redirect lasers with.
Adhesion Gel was later replaced by [[Reflection Gel]] in the [[Peer Review]] DLC, which uses the same color as [[Conversion Gel]]. The updated gel is still not used in the game, but it is functional to redirect lasers if placed using the [[Portal 2 Authoring Tools]].




== Demonstrations ==
== Reimplementation in community maps ==


Since textures of the adhesion gel still exists along with its indicator signage, various community map makers have attempted to incorporate the gel [http://www.youtube.com/watch?v=WDZ2AOm-0Do into their maps] from scratch as the entity itself no longer exists. Some more video about the Adhesion Gel (Sticky Gel). [https://www.youtube.com/watch?v=9Zj6IR_9fL4]
Because Adhesion Gel still partially exists in the game along with a signage texture, several community map makers have attempted to reimplement the gel using standard entities and scripts. Most of these involve tricks with rotating the entire map around the player, while making sure physics objects like cubes still fall towards the actual floor. One example of such a map that has been publicly released is Prototype's [https://steamcommunity.com/sharedfiles/filedetails/?id=860192232 Adhesion series]. Several other mapmakers have also created their own Adhesion Gel implementations, though most of these have not been released or no longer function.


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== Trivia ==
== Trivia ==


*The Adhesion Gel was initially meant to function the same manner as the blue stick paint in ''[[Tag: The Power of Paint]]'', the game off of which ''Portal 2''<nowiki>'</nowiki>s gel mechanics are based on.
*The Adhesion Gel was based on the blue "stick" paint in ''[[Tag: The Power of Paint]]'', the game which ''Portal 2''<nowiki>'</nowiki>s gel mechanics are based on.


== Gallery ==
== Gallery ==
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|width = 250
|width = 250
|File:Stick Paint.png|Stick Paint from ''Tag: The Power of Paint'', the game that was the basis for the ''Portal 2'' gels.
|File:Stick Paint.png|Stick Paint from ''Tag: The Power of Paint'', the game that was the basis for the ''Portal 2'' gels.
|File:Sticky_Gel_Screenshot.png|A cube covered by the Adhesion Gel, in a modded ''Portal 2''.
|File:Sticky_Gel_Screenshot.png|A cube covered by Adhesion Gel in a custom map.
|File:Portal 2-signage paint stick.png|The unused Adhesion Gel signage texture.
}}
}}



Revision as of 03:42, 14 May 2019

Adhesion Gel in-game

Adhesion Gel was a gel type that was cut from Portal 2. It did not function and was replaced by Reflection Gel in the Peer Review DLC.

Function

Adhesion Gel can be "painted" onto surfaces like any other gel. Originally, the gel was supposed to allow the player to walk on the walls and ceiling of test chambers. However, this effect has been removed in the final game. Objects can be coated in Adhesion Gel, but there are no Adhesion Gel-coated textures for anything, so it will not render. The only remaining effect of Adhesion Gel is that objects coated in it will not slide along Propulsion Gel, and vice-versa. The gel was made purple as a placeholder; a final color was never decided on, so it remains purple in the final game.

Problems

According to the Portal 2 developer commentary and The Final Hours of Portal 2, play testers were too disoriented when they had to think with portals while walking on walls and ceilings. Valve had ultimately scrapped the gel as a result.

Adhesion Gel was later replaced by Reflection Gel in the Peer Review DLC, which uses the same color as Conversion Gel. The updated gel is still not used in the game, but it is functional to redirect lasers if placed using the Portal 2 Authoring Tools.


Reimplementation in community maps

Because Adhesion Gel still partially exists in the game along with a signage texture, several community map makers have attempted to reimplement the gel using standard entities and scripts. Most of these involve tricks with rotating the entire map around the player, while making sure physics objects like cubes still fall towards the actual floor. One example of such a map that has been publicly released is Prototype's Adhesion series. Several other mapmakers have also created their own Adhesion Gel implementations, though most of these have not been released or no longer function.

Trivia

  • The Adhesion Gel was based on the blue "stick" paint in Tag: The Power of Paint, the game which Portal 2's gel mechanics are based on.

Gallery

See also: Portal 2