Glow

Since

ArcGIS Maps SDK for JavaScript 5.0

Glow is a global stylized effect that enhances the appearance of light-emitting elements and applies to all emitters in the scene. If a scene contains no emissive elements, enabling glow has no visible effect.

When Glow is set to null, emissive elements render naturally, simulating atmospheric light scattering with a bright but realistic appearance. The intensity controls the strength of the effect: a value of 0 produces a subtle glow, while 1 creates a pronounced, exaggerated glow for strong visual emphasis.

Add light emitters to the scene by configuring Symbol3DEmissive property in Symbol3DMaterial on volumetric symbol layers, or by including 3D models with emission defined (for example, via emissive maps or materials with an emissive color or factor). See the Visualization with light-emitting symbols sample to learn how to use emissive materials and glow to highlight features and build nighttime scenes.

glow: null	glow: { intensity: 0 }	glow: { intensity: 1 }
Without glow, emissive elements display with a bright, natural appearance.	Glow enables a more stylized look of emissive elements across the scene. intensity:0 adds a subtle glow only.	intensity:1 adds an exaggerated glow, helpful for strong emphasis of emissive elements.

Example:

let view = new SceneView({
  map: new Map({
    basemap: "satellite",
    ground: "world-elevation"
  }),
  environment: {
    lighting: {
      type: "sun",
      glow: { intensity: 0.2 },
    }
  }
});

The visualization updates as soon as the property changes:

view.environment.lighting.glow = new Glow({
   intensity: 0.8
});

See also

• Sample - Visualization with light-emitting symbols