`fx_physics`

jaPRO

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

Controls physics applied to FX system particles - 0: Disable all FX physics - 1: use non-expensive physics only - 2: Use flags in the fx file (Default behavior) - 3: Force expensive physics on all particles

At a glance

Field	Value
Category	Engine & diagnostics
Module	`engine-client`
Also registered in	`engine-client`
Renderer	All / not renderer-specific
Network scope	`client-only` — Local to the client/UI/renderer.
Derivation	`documented`
Confidence	`medium`
In-game xdocs	No
In-game menu	No
Default	`2`
Value type	`bitmask`
Restart	No latch flag is registered.
Cheat protected	No

Values

Value	Meaning	Evidence
`0`	Disable all FX physics.	codemp/client/FxUtil.cpp:117
`1`	Use non-expensive physics only.	codemp/client/FxUtil.cpp:117
`2`	Use flags in the fx file (Default behavior).	codemp/client/FxUtil.cpp:117
`3`	Force expensive physics on all particles.	codemp/client/FxUtil.cpp:117

Flags

CVAR_ARCHIVE — saved to the user configuration

Provenance

Origin: jaPRO

Ultimate-origin introduction: d9d510063ce6 in jaPRO (content authored 2014-01-18, integrated 2018-01-01)
Upstream registration evidence: codemp/client/FxUtil.cpp:117
Attribution method: squash-feature-group-explicit-credit
Attribution confidence: medium
Notes: The earliest authored/submitted introduction is shared by eternaljk, taystjk, japro, vulkan; fork-lineage order selects eternaljk. The identifier’s single-prefix squash feature group explicitly credits japro.

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
EternalJK	`2014-01-18`	—	`2018-01-01`	`d9d510063ce6`	Shared integration commit
TaystJK	`2014-01-18`	—	`2018-01-01`	`d9d510063ce6`	Shared integration commit
jaPRO	`2014-01-18`	—	`2018-01-01`	`d9d510063ce6`	Ultimate origin
Vulkan	`2014-01-18`	—	`2018-01-01`	`d9d510063ce6`	Shared integration commit

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
`2018-01-07`	jaPRO	`55d08a9b4ab0` Remove unused code from japro engine	Changed registration, default, flags, module, renderer scope, handler, or gating; and an exact bound cvar-variable reference. `codemp/client/FxPrimitives.cpp`, `codemp/client/FxSystem.cpp`, `codemp/client/FxSystem.h` and 1 more	`high`
`2019-03-21`	EternalJK	`c903375519cd` fx_physics	Changed registration, default, flags, module, renderer scope, handler, or gating; and an exact bound cvar-variable reference. `codemp/client/FxPrimitives.cpp`, `codemp/client/FxSystem.cpp`, `codemp/client/FxSystem.h` and 1 more	`medium`

Evidence

registration: codemp/client/FxUtil.cpp:117 (Cvar_Get)
behavior: codemp/client/FxPrimitives.cpp:228
behavior: codemp/client/FxPrimitives.cpp:230