Halation DCTL

Halation is one of the defining characteristics of film, the warm, organic glow that bleeds around bright light sources as light scatters back through the emulsion layers. It’s subtle, physical, and almost impossible to replicate with a simple glow or blur.

Halation DCTL simulates this effect in DaVinci Resolve Studio using an exponential blur kernel and an additive light model inspired by the physics of film emulsion. The result is a halation that behaves like the real thing, soft at the edges, color-accurate, and fully integrated into your grade.

Designed for colorists who want the film look without the compromise.

Built around an exponential blur kernel that replicates the natural falloff of light scatter in film. Unlike glows based on Gaussian, the falloff remains soft and natural throughout the entire effect, from narrow highlights to broad, spread-out halos.

Hue and Saturation give you precise control over the chromatic character of the halation. Dial in the classic red-orange of color negative film, shift toward amber for a warmer stock, or desaturate completely for a clean white bloom.

Isolate the halation to the areas where it actually belongs, specular highlights, practical lights, blown windows. The Threshold control keeps the effect from affecting midtones and shadows, where it doesn’t belong.

A high-frequency suppression layer that reduces fine detail in the halation-affected zones, replicating the subtle resolution loss that occurs in film emulsion around overexposed areas. Masked precisely to where the effect is active.