`r_mapGreyScale`

Vulkan

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

Controls r_mapGreyScale in the renderer module. Consult the cited behavior reads before relying on values not listed here.

At a glance

Field	Value
Default	`0`
Value type	`float`
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-vulkan`
Derivation	`code-trace`
Confidence	`medium`
Added	2021-05-25 in `c4a9c87ef` needs review (how to compare this against your build)
In-game xdocs	No
In-game menu	No

Values

No discrete value list is enforced or documented in the inspected source.

Enforced ranges

-1 through 1 (numeric; Cvar_CheckRange). Evidence: codemp/rd-vulkan/tr_init.cpp:929

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

Provenance

Origin: Vulkan

Ultimate-origin introduction: c4a9c87ef0e3 in Vulkan (content authored 2021-05-25, integrated 2021-05-25)
Upstream registration evidence: codemp/rd-vulkan/tr_init.cpp:927
Attribution method: squash-feature-group-explicit-credit
Attribution confidence: medium
Notes: The identifier’s single-prefix squash feature group explicitly credits vulkan.

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
TaystJK	`2021-05-25`	—	`2021-05-25`	`c4a9c87ef0e3`	Shared integration commit
jaPRO	`2021-05-25`	—	`2021-05-25`	`c4a9c87ef0e3`	Shared integration commit
Vulkan	`2021-05-25`	—	`2021-05-25`	`c4a9c87ef0e3`	Ultimate origin
NewJK / NewMod	`2026-08-09`	—	`2026-08-09`	`686cbf9b649b`	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
`2022-02-14`	TaystJK	`507a46dfc17d` Collection of code cleanup and refactoring. Plus recent quake3e changes	Changed an exact bound cvar-variable reference. `codemp/rd-vulkan/tr_bsp.cpp`	`medium`

Evidence

registration: codemp/rd-vulkan/tr_init.cpp:928 (Cvar_Get)
behavior: codemp/rd-vulkan/tr_bsp.cpp:147
behavior: codemp/rd-vulkan/tr_bsp.cpp:153
behavior: codemp/rd-vulkan/tr_bsp.cpp:2068
behavior: codemp/rd-vulkan/vk_image.cpp:1493
behavior: codemp/rd-vulkan/vk_image.cpp:1497

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