Bloom

Bloom is a post-process effect that diffuses very bright pixels. This mimics what happens inside a real camera.

This allows a better sense of what the actual intensities of the pixels are.

Settings

Reference

Panel:Render ‣ Bloom
Threshold
Filters out pixels under this level of brightness.
Color
Color applied to the bloom effect.
Knee
Makes transition between under/over-threshold gradual.
Radius
Bloom spread distance.
Clamp
Maximum intensity a bloom pixel can have.
Intensity
Blend factor.