Interface AutoExposureFeatureOptions

When false, the pass writes fixedExposure each frame instead of adapting from the histogram. Note this controls the pass: the feature itself always runs so frame.exposureBuffer stays populated for the composite feature. To skip the whole feature use engine.setFeatureEnabled(AutoExposureFeature.name, false).

Initial / locked exposure value (used when adaptive = false).

Exposure-compensation bias in EV stops, applied as a final ×2^ev multiplier in both adaptive and fixed modes (+1 = one stop brighter). Mutate AutoExposureFeature.exposureCompensation at runtime for a live EV knob. Default 0.

Physically-based manual exposure from camera settings (EV100). When set, the fixed exposure is computed from aperture/shutter/ISO each frame (so it's slider-tunable) instead of being a raw fixedExposure scalar. Only used when adaptive = false. exposureCompensation still biases it.

Normalized-units → cd/m² calibration applied to the physical-camera exposure. EV100 is defined for physical luminance; while the engine's lights are still in normalized units this scales the result onto that range (it's "what one engine light-unit is worth in cd/m²"). Default 1 — correct once lights carry real photometric units. Ignored unless physicalCamera.