CircleParticleRenderer constructor

CircleParticleRenderer({
  1. double softness = 0,
  2. BlendMode? blendMode,
  3. Paint? paint,
})

Creates a circle renderer.

softness goes from 0 (a crisp edge) to 1 (fully faded from the center), which suits smoke and glow, especially combined with blendMode: BlendMode.plus.