`r_greyscale`

rend2

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

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

At a glance

Field	Value
Category	Graphics & rendering
Module	`renderer`
Also registered in	`renderer`
Renderer	`rd-rend2`, `rd-vulkan`
Network scope	`client-only` — Local to the client/UI/renderer.
Derivation	`code-trace`
Confidence	`high`
In-game xdocs	No
In-game menu	No
Default	`0`
Value type	`float`
Restart	Yes; the value is latched.
Cheat protected	No

Values

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

Flags

CVAR_ARCHIVE — saved to the user configuration
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
`0`	`renderer`	`rd-rend2`	`always`
`0`	`renderer`	`rd-vulkan`	`always`

Provenance

Origin: rend2

Ultimate-origin introduction: be28b4edd6c7 in rend2 (content authored 2013-10-08, integrated 2023-10-03)
TaystJK integration evidence: c4a9c87ef0e3
Upstream registration evidence: codemp/rd-rend2/tr_init.cpp:1499
Attribution method: introduction-commit-explicit-credit
Attribution confidence: high
Notes: rend2 retains origin because content authorship and PR submission predate the project that merged the work first. The TaystJK integration evidence credits vulkan as an immediate port source, but rend2 has an earlier dated introduction and remains the ultimate origin. 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	`2013-10-08`	—	`2023-10-03`	`be28b4edd6c7`	Shared integration commit
rend2	`2013-10-08`	—	`2023-10-03`	`be28b4edd6c7`	Ultimate origin
TaystJK	`2021-05-25`	—	`2021-05-25`	`c4a9c87ef0e3`	Other project appearance
jaPRO	`2021-05-25`	—	`2021-05-25`	`c4a9c87ef0e3`	Other project appearance
Vulkan	`2021-05-25`	—	`2021-05-25`	`c4a9c87ef0e3`	Other project appearance
NewJK / NewMod	`2026-08-09`	—	`2026-08-09`	`686cbf9b649b`	Other project appearance

Immediate port-source credit: Vulkan. The earlier dated project remains the ultimate origin.

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
`2021-05-25`	Vulkan	`c4a9c87ef0e3` Added vulkan renderer	Changed registration, default, flags, module, renderer scope, handler, or gating. `codemp/rd-vulkan/tr_init.cpp`	`high`
`2023-10-03`	TaystJK	`86c0756385ef` · PR #12 Rend2 (#12)	Changed registration, default, flags, module, renderer scope, handler, or gating. `codemp/rd-rend2/tr_init.cpp`	`medium`

Evidence

registration: codemp/rd-rend2/tr_init.cpp:1534 (Cvar_Get)
registration: codemp/rd-vulkan/tr_init.cpp:932 (Cvar_Get)
behavior: shared/rd-rend2/tr_image.cpp:1741
behavior: shared/rd-rend2/tr_image.cpp:1758
behavior: shared/rd-rend2/tr_image.cpp:1799
behavior: shared/rd-rend2/tr_image.cpp:2114
behavior: shared/rd-rend2/tr_image.cpp:2124