Adhesion Gel - Revision history

MrWheatleyCore: Added a new fact into trivia

2026-04-13T06:43:09Z

Added a new fact into trivia

← Older revision		Revision as of 06:43, 13 April 2026
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	* This gel was later added to Portal 2: Community Edition.		* This gel was later added to Portal 2: Community Edition.

			* There were at least 8 maps with Adhesion Gel. <ref>Portal 2 game files, portal2\reslists</ref>

	== Gallery ==		== Gallery ==

GrampaSwood at 01:07, 31 March 2026

2026-03-31T01:07:47Z

← Older revision		Revision as of 01:07, 31 March 2026
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	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]].		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 ==		== Reimplementation in community maps ==
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	* While the properties of the gel is sticky. In some maps, jumping off (default key {{Key\|space}}) the gel will not disengage the player from the ''sticky'' state. This glitch can be observed and practiced in some maps where the workaround is rotating the entire map.		* While the properties of the gel is sticky. In some maps, jumping off (default key {{Key\|space}}) the gel will not disengage the player from the ''sticky'' state. This glitch can be observed and practiced in some maps where the workaround is rotating the entire map.

	* This gel was later added to Portal 2: Community Edition		* This gel was later added to Portal 2: Community Edition.

	== Gallery ==		== Gallery ==

Windows11: added mention to P2CE

2026-03-30T23:28:44Z

added mention to P2CE

← Older revision		Revision as of 23:28, 30 March 2026
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	* While the properties of the gel is sticky. In some maps, jumping off (default key {{Key\|space}}) the gel will not disengage the player from the ''sticky'' state. This glitch can be observed and practiced in some maps where the workaround is rotating the entire map.		* While the properties of the gel is sticky. In some maps, jumping off (default key {{Key\|space}}) the gel will not disengage the player from the ''sticky'' state. This glitch can be observed and practiced in some maps where the workaround is rotating the entire map.

			* This gel was later added to Portal 2: Community Edition

	== Gallery ==		== Gallery ==

Naleksuh: Reverting vandalism

2023-06-13T05:11:10Z

Reverting vandalism

Show changes

CatMurderer at 04:50, 13 June 2023

2023-06-13T04:50:48Z

Show changes

Cqf at 19:36, 27 April 2023

2023-04-27T19:36:18Z

← Older revision		Revision as of 19:36, 27 April 2023
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	[[File:Adhesion Gel 2.jpg\|right\|300px\|Adhesion Gel in-game]]		[[File:Adhesion Gel 2.jpg\|right\|300px\|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.		'''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.
	~~{{Clr}}~~
	== Function ==		== 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.		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.
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	}}		}}

			{{Portal2MechanicsNav}}

	~~{{MechanicsNav}}~~
	[[Category:Beta and unused content]]		[[Category:Beta and unused content]]

LeToadFan9595: This should explain it: https://www.reddit.com/r/Portal/comments/umhs86/comment/i82qkna/?utm_name=iossmf&context=3

2023-02-18T14:24:05Z

This should explain it: https://www.reddit.com/r/Portal/comments/umhs86/comment/i82qkna/?utm_name=iossmf&context=3

← Older revision		Revision as of 14:24, 18 February 2023
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	== Problems ==		== Problems ==
	According to the ''Portal 2'' developer commentary and [[The Final Hours of Portal 2]], play testers were falsely 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 falsely disoriented when they had to think with portals while walking on walls and ceilings, and the gel did not work correctly with portals. 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]].		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]].

AverageSpaceCore at 10:25, 24 October 2020

2020-10-24T10:25:45Z

← Older revision		Revision as of 10:25, 24 October 2020
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	[[File:Adhesion Gel 2.jpg\|right\|300px\|Adhesion Gel in-game]]		[[File:Adhesion Gel 2.jpg\|right\|300px\|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.		'''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.
	{{Clr}}		{{Clr}}

Headquarter8302: cleaning up

2020-08-31T00:00:05Z

cleaning up

← Older revision		Revision as of 00:00, 31 August 2020
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	~~{{Stub}}~~
	[[File:Adhesion Gel 2.jpg\|right\|300px\|Adhesion Gel in-game]]		[[File:Adhesion Gel 2.jpg\|right\|300px\|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.		'''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.
			{{Clr}}
	== Function ==		== 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.		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 ==		== Problems ==
			According to the ''Portal 2'' developer commentary and [[The Final Hours of Portal 2]], play testers were falsely 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.

	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]].		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]].
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	== Reimplementation in community maps ==		== 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. Several other mapmakers have also created their own Adhesion Gel implementations, though most of these have not been released or no longer function.

	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.~~		=== Examples an/or workarounds ===
			* 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].
			* Literally ''stick'' the player into the floor.
			* Camera angle manipulation, with using the ''stick'' workaround

			== Videos ==
	{{youtube\|taN5-hNaAuk}}		{{youtube\|taN5-hNaAuk}}
	{{youtube\|9Zj6IR_9fL4}}		{{youtube\|9Zj6IR_9fL4}}
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	== Trivia ==		== Trivia ==
			* 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.

	*~~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~~.		* While the properties of the gel is sticky. In some maps, jumping off (default key {{Key\|space}}) the gel will not disengage the player from the ''sticky'' state. This glitch can be observed and practiced in some maps where the workaround is rotating the entire map.

	== Gallery ==		== Gallery ==

VRadExe at 03:42, 14 May 2019

2019-05-14T03:42:59Z

← Older revision		Revision as of 03:42, 14 May 2019
Line 1:		Line 1:
	{{Stub}}		{{Stub}}
	[[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.

	{{youtube\|taN5-hNaAuk}}		{{youtube\|taN5-hNaAuk}}
Line 25:		Line 23:
	{{youtube\|ogePnpISpmo}}		{{youtube\|ogePnpISpmo}}
	{{youtube\|WDZ2AOm-0Do}}		{{youtube\|WDZ2AOm-0Do}}

	== 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.
	}}		}}