GreatGlare provides post-processing glow and bloom effects for Blender's compositor. The package includes a photographic bloom node with a dirty lens feature and a separate toon-style bloom node. The photographic bloom includes a tail slider to adjust the falloff curve of the effect, while the toon bloom automatically adjusts its radius based on light brightness to create hard or soft-edged halos around bright objects. The download contains the two compositor node groups along with dirty lens overlay textures and test images.