`r_gammaShaders`

OpenJK

Needs review. The inventory/provenance evidence is recorded, but some behavior, options, or attribution still lacks a direct user-facing source.

Set gamma using pixel shaders inside the game window only.

At a glance

Field	Value
Default	`1`
Value type	`bool`
Restart	Yes; the value is latched.
Manually settable	Yes
Cheat protected	No
Network scope	`client-only`: Local to the client/UI/renderer.
Category	Graphics & rendering
Module	`renderer`
Renderer	`rd-vanilla`, `rd-vulkan`
Derivation	`documented`
Confidence	`medium`
Added	2015-11-13 in `5ef5d7214` needs review (how to compare this against your build)
In-game xdocs	No
In-game menu	No

Values

Value	Meaning	Evidence
`0`	Disabled.	codemp/rd-vanilla/tr_init.cpp:718
`1`	Enabled.	codemp/rd-vanilla/tr_init.cpp:718

Flags

CVAR_ARCHIVE_ND: saved to configuration without marking the cvar as user-created
CVAR_LATCH: latched until the relevant subsystem or map is restarted

Registration-specific defaults

Default	Module	Renderer	Compile condition
`1`	`renderer`	`rd-vanilla`	`always`
`1`	`renderer`	`rd-vulkan`	`always`

Provenance

Origin: OpenJK

Ultimate-origin introduction: ead8e3618248 in OpenJK (content authored 2015-07-25, integrated 2015-07-25)
TaystJK integration evidence: 5ef5d7214371
Upstream registration evidence: codemp/rd-vanilla/tr_init.cpp:1575
Attribution method: squash-feature-group-explicit-credit
Attribution confidence: medium
Notes: The identifier’s single-prefix squash feature group explicitly credits openjk. Dated commit evidence identifies later registration changes relative to the origin snapshot.

Dated project introductions

Authored dates come from the exact registration’s first content commit, PR dates identify when work was proposed to each project, and integration dates come from each first-parent mainline. A project merging first does not override earlier upstream authorship or submission.

Project	Authored	PR opened	Integrated	Commit	Relationship
OpenJK	`2015-07-25`	—	`2015-07-25`	`ead8e3618248`	Ultimate origin
rend2	`2015-07-25`	—	`2015-07-25`	`ead8e3618248`	Shared integration commit
NewJK / NewMod	`2015-07-25`	—	`2015-07-25`	`ead8e3618248`	Shared integration commit
EternalJK	`2015-07-25`	—	`2015-11-13`	`5ef5d7214371`	Other project appearance
TaystJK	`2015-07-25`	—	`2015-11-13`	`5ef5d7214371`	Other project appearance
jaPRO	`2015-07-25`	—	`2015-11-13`	`5ef5d7214371`	Other project appearance
Vulkan	`2015-07-25`	—	`2015-11-13`	`5ef5d7214371`	Other project appearance

Later changes

These commits occur after the ultimate-origin introduction on TaystJK’s inherited first-parent lineage. Registration evidence is exact; behavior evidence requires a changed bound cvar reference or a changed registered command-handler hunk.

Date	Change source	Commit / subject	Evidence	Confidence
`2015-11-13`	OpenJK	`5ef5d7214371` Merge branch ‘master’ of https://github.com/JACoders/OpenJK	Changed registration, default, flags, module, renderer scope, handler, or gating. `codemp/rd-vanilla/tr_init.cpp`	`medium`
`2016-03-24`	EternalJK	`c9c6ab99fdd2` Merge branch ‘master’ of https://github.com/JACoders/OpenJK into japro	Changed registration, default, flags, module, renderer scope, handler, or gating. `codemp/rd-vanilla/tr_init.cpp`	`medium`
`2017-08-31`	OpenJK	`913e3cc57ec7` Merge branch ‘master’ of https://github.com/JACoders/OpenJK.git	Changed registration, default, flags, module, renderer scope, handler, or gating. `codemp/rd-vanilla/tr_init.cpp`	`medium`
`2017-12-29`	EternalJK	`43b393062090` Merge remote-tracking branch ‘upstream/master’	Changed registration, default, flags, module, renderer scope, handler, or gating. `codemp/rd-vanilla/tr_init.cpp`	`medium`
`2018-01-06`	EternalJK	`a2acfb6b9129` Merge pull request #11 from Bucky21659/master	Changed registration, default, flags, module, renderer scope, handler, or gating. `codemp/rd-vanilla/tr_init.cpp`	`medium`
`2021-05-25`	TaystJK	`d7d7ce3234e6` Added vanilla clone for code compare	Changed registration, default, flags, module, renderer scope, handler, or gating; and an exact bound cvar-variable reference. `codemp/rd-vulkan/tr_init.cpp`	`medium`
`2021-05-25`	Vulkan	`c4a9c87ef0e3` Added vulkan renderer	Changed an exact bound cvar-variable reference. `codemp/rd-vulkan/tr_init.cpp`	`high`
`2025-04-15`	rend2	`c98ecf977bd3` · PR #217 Rend2 update (#217)	Changed registration, default, flags, module, renderer scope, handler, or gating. `codemp/rd-vanilla/tr_init.cpp`	`medium`

Evidence

registration: codemp/rd-vanilla/tr_init.cpp:1641 (Cvar_Get)
registration: codemp/rd-vulkan/tr_init.cpp:792 (Cvar_Get)
behavior: codemp/rd-vanilla/tr_init.cpp:718

Generated from source commit c722804317d7 on 2026-09-28. Anything merged after that is not reflected here.