Watch Dogs 1 — Environment Lighting Parameters

Reference for environmentlighting.lib parameters. These control time-of-day lighting, exposure, GI probes, and reflections.

Sun/Moon Lighting

Parameter	Description
gradSunLightColor	Projected sunlight color (gradient over ToD)
gradMoonLightColor	Ambient moonlight color
curveSunLightIntensity	Projected sunlight intensity (curve over ToD)
curveMoonLightIntensity	Ambient moonlight intensity

Shadows & Reflections

Parameter	Description
curveWorldShadowContribution	Toggles shadows; supports in-between values (not just on/off)
curveStaticReflectionIntensityDay	Static cubemap reflection intensity (daytime)
curveStaticReflectionIntensityNight	Static cubemap reflection intensity (nighttime)
curveDynamicReflectionGIInfluence	How much GI affects dynamic reflections

Global Lights

Parameter	Description
curveGlobalLightsIntensity0	On/off switch for light source type 0
curveGlobalLightsIntensity1	On/off switch for light source type 1
curveGlobalLightsIntensity2	On/off switch for light source type 2
curveGlobalLightsIntensity3	On/off switch for light source type 3

GI Probe Parameters

Parameter	Description
curveProbeScale	Global GI probe scale multiplier
curveProbeSkyBounceMultiplier	Sky bounce light multiplier
curveProbeSkyDirectMultiplier	Sky direct light multiplier
curveProbeSunBounceMultiplier	Sun bounce light multiplier
curveProbeSkySaturation	Sky color saturation in GI
curveProbeLocalLightsMultiplier	Local artificial light multiplier (exterior)
curveProbeLocalLightsMultiplierInterior	Local artificial light multiplier (interior)
curveProbeBackgroundAmbientStrength	Background ambient contribution to probes

Exposure (Auto-Exposure)

Parameter	Description
curveExposureValue	Base exposure value
selLuminanceComputationMethod	Method for measuring scene luminance
curvePercentile	Luminance percentile threshold
curveTargetLuminance	Target average luminance
curveSpeed	Exposure adaptation speed
curveSpeedMultiplier	Exposure adaptation speed multiplier
fScreenPercentX	Screen sample region X
fScreenPercentY	Screen sample region Y
curveMinimumExposureValue	Minimum exposure clamp
curveMaximumExposureValue	Maximum exposure clamp

Luminance Computation Methods

Value	Method	Notes
0	Histogram threshold	Used in 2013 beta builds
1	Histogram average	Used in 360/PS3 retail
2	(unused)	—
3	GPU average	Next-gen (PC/PS4/XB1)

Dunia Legacy Parameters (Unused in WD1)

These carried over from Far Cry 3 (Dunia engine) but are not actively used:

• gradPaintedGIColor, curvePaintedGIIntensity
• curveAmbientDirectionalContrast
• gradAmbientSkyColor, curveAmbientSkyIntensity
• gradAmbientGroundColor, curveAmbientGroundIntensity
• gradAmbientSunFrontColor, curveAmbientSunFrontIntensity
• gradAmbientSunBackColor, curveAmbientSunBackIntensity
• curveRimLightIntensity
• AmbientOcclusion

Cross-References

• Lighting Pipeline Hooks — renderer queue RVAs, GPU light structs
• Shader Addons — Parallellines' lighting fixes