`r_drawfog`

Base Jedi Academy

Controls fog rendering. The Vulkan registration documents 0 as disabled, 1 as software fog, and 2 as hardware fog; the same cvar is registered by vanilla, rend2, Vulkan, and the dedicated renderer stub.

At a glance

Field	Value
Category	Graphics & rendering
Module	`renderer`
Also registered in	`renderer`
Renderer	`rd-dedicated`, `rd-rend2`, `rd-vanilla`, `rd-vulkan`
Network scope	`client-only` — Local to the client/UI/renderer.
Derivation	`mixed`
Confidence	`high`
In-game xdocs	No
In-game menu	No
Default	`2`
Value type	`enum`
Restart	Yes; the value is latched.
Cheat protected	No

Values

Value	Meaning	Evidence
`0`	Disable fog.	codemp/rd-vulkan/tr_init.cpp:871
`1`	Use software fog.	codemp/rd-vulkan/tr_init.cpp:871
`2`	Use hardware fog.	codemp/rd-vulkan/tr_init.cpp:871

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
`2`	`renderer`	`rd-dedicated`	`always`
`2`	`renderer`	`rd-rend2`	`always`
`2`	`renderer`	`rd-vanilla`	`always`
`2`	`renderer`	`rd-vulkan`	`always`

Provenance

Origin: Base Jedi Academy

Baseline evidence: 14cea1563762
Upstream registration evidence: code/renderer/tr_init.cpp:1204
Attribution method: present-in-openjk-initial-source-import
Attribution confidence: high
Notes: Identifier is present in OpenJK’s initial Raven source-import snapshot. Dated commit evidence identifies later registration changes relative to the origin snapshot.

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
`2013-04-16`	OpenJK	`714c868b42c6` Merge branch ‘master’ of https://github.com/Razish/OpenJK	Changed registration, default, flags, module, renderer scope, handler, or gating; and an exact bound cvar-variable reference. `codemp/rd-dedicated/tr_init.cpp`, `codemp/rd-dedicated/tr_local.h`, `codemp/rd-vanilla/tr_init.cpp` and 4 more	`high`
`2013-04-19`	OpenJK	`16007a014e0b` 19 externals left to fix in the SP modular renderer, doing a push/pull break here	Changed registration, default, flags, module, renderer scope, handler, or gating. `code/rd-vanilla/tr_init.cpp`	`medium`
`2013-08-02`	OpenJK	`dd9bd9b9ae92` Refactored renderer API, fixed some Ghoul2 crashes	Changed registration, default, flags, module, renderer scope, handler, or gating. `codemp/rd-dedicated/tr_init.cpp`, `codemp/rd-vanilla/tr_init.cpp`	`medium`
`2014-01-30`	OpenJK	`d3a6d2b9b9d2` [MP] Style: remove superfluous whitespace	Changed an exact bound cvar-variable reference. `codemp/rd-vanilla/tr_shade.cpp`	`medium`
`2014-05-28`	OpenJK	`773fdcef0610` [JK2SP] Fix yavin_swamp by removing GL fog when compiling the renderer for JK2. Also sets r_drawfog to 1 for JK2 mode instead of 2.	Changed registration, default, flags, module, renderer scope, handler, or gating. `code/rd-vanilla/tr_init.cpp`	`medium`
`2015-11-16`	EternalJK	`83d2ef4ac09a` Unlock all cheat-protected renderer cvars	Changed registration, default, flags, module, renderer scope, handler, or gating. `codemp/rd-vanilla/tr_init.cpp`	`medium`
`2015-11-24`	EternalJK	`c8f6ea17a324` Remove SP code	Changed registration, default, flags, module, renderer scope, handler, or gating. `code/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-dedicated/tr_init.cpp`, `codemp/rd-vanilla/tr_init.cpp`	`medium`
`2016-04-23`	OpenJK	`34634e7dbad8` 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`
`2017-12-04`	jaPRO	`b713e21a0ea8` Merge pull request #1 from Bucky21659/master	Changed registration, default, flags, module, renderer scope, handler, or gating. `codemp/rd-vanilla/tr_init.cpp`	`high`
`2017-12-29`	EternalJK	`43b393062090` Merge remote-tracking branch ‘upstream/master’	Changed registration, default, flags, module, renderer scope, handler, or gating. `codemp/rd-dedicated/tr_init.cpp`, `codemp/rd-vanilla/tr_init.cpp`	`medium`
`2018-01-01`	jaPRO	`d9d510063ce6` Merge branch ‘japro-ejk’	Changed registration, default, flags, module, renderer scope, handler, or gating. `codemp/rd-dedicated/tr_init.cpp`	`high`
`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`, `codemp/rd-vulkan/tr_local.h`, `codemp/rd-vulkan/tr_quicksprite.cpp` and 2 more	`medium`
`2021-05-25`	Vulkan	`c4a9c87ef0e3` Added vulkan renderer	Changed registration, default, flags, module, renderer scope, handler, or gating; and an exact bound cvar-variable reference. `codemp/rd-vulkan/tr_init.cpp`, `codemp/rd-vulkan/tr_quicksprite.cpp`, `codemp/rd-vulkan/tr_shade.cpp` and 2 more	`high`
`2022-02-15`	Vulkan	`723c24a13050` Vulkan: Fixed entity wall clipping & refactor fastsky color for performance	Changed an exact bound cvar-variable reference. `codemp/rd-vulkan/vk_shade_geometry.cpp`	`high`
`2023-10-03`	TaystJK	`86c0756385ef` · PR #12 Rend2 (#12)	Changed registration, default, flags, module, renderer scope, handler, or gating; and an exact bound cvar-variable reference. `codemp/rd-rend2/tr_init.cpp`	`medium`
`2024-02-03`	TaystJK	`0c789787f79c` · PR #110 Rend2 updates (#110)	Changed an exact bound cvar-variable reference. `shared/rd-rend2/tr_glsl.cpp`, `shared/rd-rend2/tr_local.h`, `shared/rd-rend2/tr_shade.cpp` and 1 more	`medium`
`2025-04-15`	rend2	`c98ecf977bd3` · PR #217 Rend2 update (#217)	Changed an exact bound cvar-variable reference. `shared/rd-rend2/tr_glsl.cpp`	`medium`
`2025-08-08`	Vulkan	`cc93ec8c4139` · PR #251 Merge pull request #251 from taysta/vk-update	Changed registration, default, flags, module, renderer scope, handler, or gating; and an exact bound cvar-variable reference. `codemp/rd-vulkan/tr_init.cpp`, `codemp/rd-vulkan/vk_init.cpp`, `codemp/rd-vulkan/vk_local.h` and 1 more	`medium`
`2026-01-09`	Vulkan	`f18b5091e2f3` · PR #286 Merge pull request #286 from taysta/vk-update	Changed an exact bound cvar-variable reference. `codemp/rd-vulkan/vk_vbo_surfacesprites.cpp`	`medium`
`2026-06-18`	TaystJK	`9693491bc25a` · PR #346 Merge pull request #346 from taysta/rend2-cvars	Changed registration, default, flags, module, renderer scope, handler, or gating. `codemp/rd-rend2/tr_init.cpp`	`medium`

Evidence

registration: codemp/rd-dedicated/tr_init.cpp:404 (Cvar_Get)
registration: codemp/rd-rend2/tr_init.cpp:1653 (Cvar_Get)
registration: codemp/rd-vanilla/tr_init.cpp:1713 (Cvar_Get)
registration: codemp/rd-vulkan/tr_init.cpp:871 (Cvar_Get)
behavior: codemp/rd-vanilla/tr_quicksprite.cpp:87
behavior: codemp/rd-vanilla/tr_quicksprite.cpp:130
behavior: codemp/rd-vanilla/tr_shade.cpp:648
behavior: codemp/rd-vanilla/tr_shade.cpp:1000
behavior: codemp/rd-vanilla/tr_shade.cpp:1882