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Wiki » Reference » test_ entities » test_aurelio_func_fluid
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test_aurelio_func_fluid

This is an entity on id Tech 4 engines, present on Quake 4. Below you can find its spawnflags, keys and editor settings for each game that defines it.

Quake 4

A brush model that simulates a fluid.

NOTE: If you ever change pipeLength or pipeArea, remember to adjust damping factor!

Keys

Key Type Default Description
solid bool 0 whether the object should be solid or not.
hide bool whether the object should be visible when spawned.
density var 1.0 The density of the fluid. (default: 1.0)
gridsize_x var 32 The size/resolution of the grid on the x-axis. (default: 32)
gridsize_y var 32 The size/resolution of the grid on the y-axis. (default: 32)
damping var 0.97 How much to dampen the fluid movement. (1.0 is none, 0.0 is completely dampend)
pipeLength var -1 Override for the length of the pipes that connect water across grid units.
pipeArea var -1 Override for the cross-sectional area of the pipes that connect water across grid units.
gravity var 1066 The gravity acting on this fluid. (default: quake standard - 1066)
fluidType var nspipes The type of simulation to run on the fluid height field.

Editor

Property Value
Type brush entity
Spawn class rvFluid
Color 0 .5 1.0

Last changed Sep 21, 2026
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