Using Shadow Casters
Emissive lighting (Material Glow / Self Illumination and Particle effects) along with point lights do not cast shadows. Now you can pair up Shadow Caster with these types of shadowless lighting to better their authenticity.
Directional Shadow effect
Spot Shadow effect
Directional Shadow & Spot Shadow Comparison
Creating Shadow Caster
You can create two types of shadow caster from Create menu > Shadow Caster > Directional Shadow or Spot Shadow.
After the shadow caster is created, you can see the aster under the Light group in the Scene Manager.
Note:
Both the Directional Shadow and SpotShadow nodes contain Darkness slider to increase the intensity of its cast shadows.