"Water Foam" option doesn't work

[LWestTech]

What happened?

Simply put, there is no foam. I can't see edges of water at all, making it really hard to tell when it's there.




My game version is 1.21.1 by the way, however just so you know, everything else works perfectly in this version as far as I can tell

Minecraft Version

1.20.2 its 1.21.1

Which shader mod are you using?

Iris

Shader mod version

v1.0a

Shader settings

#Sat Nov 02 01:00:13 EDT 2024
AIR_FOG_COLORED_LIGHT_SHAFTS=true
AIR_FOG_RAYLEIGH_DENSITY=0.0004
AURORA_BRIGHTNESS=1.40
AURORA_FREQUENCY=2.00
AURORA_NORMAL=AURORA_RARELY
AURORA_SNOW=AURORA_ALWAYS
AUTO_EXPOSURE=AUTO_EXPOSURE_SIMPLE
BLOCK_ENTITY_SHADOWS=true
BOUNCED_LIGHT_I=1.74
CAS_INTENSITY=0.75
CLOUD_SHADOWS_INTENSITY=1.00
COLORED_LIGHTS=true
DOF=true
DOF_INTENSITY=0.40
EDGE_HIGHLIGHT=true
EDGE_HIGHLIGHT_SCALE=8.0
GRADE_CONTRAST=1.07
GRADE_SATURATION=1.01
HANDHELD_LIGHTING=true
INFO=3
MOON_I=0.41
SHADING_STRENGTH=0.48
SKY_GROUND=true
SSS_INTENSITY=1.01
STARS_COVERAGE=1.00
STARS_INTENSITY=0.54
SUN_EB=0.39
SUN_EG=0.54
SUN_I=1.74
SUN_MB=0.42
SUN_MG=0.54
SUN_NB=0.97
SUN_NR=0.84
VANILLA_SUN=true
WATER_ABSORPTION_B_UNDERWATER=0.07
WATER_CAUSTICS=true
WATER_FOAM=true
WATER_REFRACTION_INTENSITY=1.03
WATER_SCATTERING_UNDERWATER=0.02
WATER_WAVE_SPEED_FLOWING=2.00
WATER_WAVE_SPEED_STILL=0.90
shadowMapResolution=4096

Relevant log output

No response