OptionalintensityHow strongly the bloom pyramid is added back to the scene. 0 =
no contribution (but still costs the prep passes — drop the active
View.renderMode out of BloomParams.renderModes to
skip the work entirely), 1 = full additive contribution.
Default is 0.15 — a subtle additive contribution that picks
up specular peaks (HDR sun, smooth-metal reflections) without
washing out the rest of the scene. Increase for a more
pronounced glow.
OptionalkneeSoft-knee width around the threshold. 0 gives a hard cut, higher
values smooth the roll-in so bloom appears more gradually as pixels
approach the threshold. Range roughly [0, 1]. Default is 0.5.
OptionalrenderWhich rendering modes in which to apply Bloom.
Default value is [RealisticRender].
OptionalthresholdLuminance threshold above which pixels contribute to bloom. Values
between scene-reasonable 1.0 and ~4.0 are common. Default is
4.0 — only the brightest HDR-range pixels (sun core, smooth-metal
specular peaks) bloom, so the effect reads as a tight glow on real
highlights rather than a haze over moderately-bright surfaces.
Parameters for a Bloom.