Blending Modes

What is Blending Modes?

Blending modes control how two image layers mix together: whether they darken, lighten, or combine in more complex ways to create the final result.

At a glance

Also known as
Layer modesComposite modesTransfer modes
Used for
Layer compositingColour and light effectsTexture overlaysVFX integration
Common tools
Adobe photoshopAdobe after effectsDaVinci resolveNuke
Related terms
CompositingAlpha channelOpacityColor gradingLUT

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How it compares

How it compares

Blending ModesOpacity

Opacity uniformly reduces the transparency of a layer, making it more or less visible as a whole. Blending modes change how the layer interacts with what is beneath it based on colour mathematics, producing effects that go far beyond simple transparency adjustments and cannot be achieved through opacity changes alone.

Think of it like…

Blending modes are like different types of transparent filters placed over a painting. Some filters darken everything beneath them, some lighten it, and others interact only with specific tones: the filter does not cover the painting; it changes how you perceive it.

Pro tip

When compositing AI-generated elements into live footage, try the Luminosity blending mode for colour grade layers to avoid shifting the saturation of generated skin tones and fine details: it applies the brightness changes of your grade while preserving the original colour relationships.

Types and variations

  • Blending modes are typically grouped into categories based on their function.
  • Darkening modes such as Multiply and Color Burn reduce brightness by multiplying or compressing tonal values.
  • Lightening modes such as Screen and Color Dodge increase brightness by inverting and multiplying values.
  • Contrast modes such as Overlay, Soft Light, and Hard Light boost contrast and saturation relative to a midpoint.
  • Inversion modes such as Difference and Exclusion create colour-inverted or psychedelic effects based on the mathematical difference between layers.
  • Component modes such as Hue, Saturation, Color, and Luminosity blend only a specific visual attribute of the upper layer with the rest of the base.
  • Each software application implements these categories with slight variations, but the core mode behaviour is consistent across professional tools.

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Common use cases

  • Blending modes are used across a wide range of visual production contexts.
  • In photo editing and compositing, Multiply is used to add realistic shadows and burn in textures, while Screen is used for glows, light leaks, and particle overlays.
  • Overlay and Soft Light are standard choices for applying colour and contrast grades on top of footage without completely replacing the underlying tonal values.
  • In motion graphics, blending modes allow animated elements to integrate with background footage convincingly.
  • In VFX, passes from a 3D render such as ambient occlusion, specular highlights, and diffuse light are recombined using specific modes to reconstruct a final composite.
  • In AI video and image workflows, blending modes help creators add grain, texture, and colour effects over generated content to give it a more organic, hand-finished quality.

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FAQs

What are blending modes in video editing?
Blending modes are mathematical formulas that control how two layers combine visually. Instead of one layer simply sitting on top of another, the blending mode calculates a new colour for every pixel based on the colour values in both the upper and lower layers.
Which blending mode should I use for adding glow effects?
Screen is the most common choice for glow and light effects. Because it inverts and multiplies values, black areas in the upper layer become transparent while lighter areas contribute a brightening, luminous quality to the image beneath.
What is the difference between Overlay and Soft Light blending modes?
Both modes boost contrast and saturation based on whether the base colour is above or below fifty per cent grey. Overlay produces a stronger, more vivid result, while Soft Light applies the same logic more gently, creating a subtler increase in contrast and colour depth.
Can blending modes be used in AI video generation workflows?
Yes. While blending modes are applied in post-production software rather than during AI generation itself, they are essential for compositing AI-generated elements with other footage, adding texture passes over generated images, and integrating colour grades in a non-destructive way.
Why does the Multiply blending mode make images darker?
Multiply works by multiplying the colour values of the two layers together on a scale of zero to one. Multiplying any number by a value less than one produces a smaller number, so the result is always darker than either of the original layers.
Are blending modes non-destructive?
Yes. Blending modes are a property of the layer itself and do not alter the underlying pixel data. Changing or removing the blending mode restores the layer to its original appearance, making them a safe and flexible choice for iterative compositing work.
What blending mode is best for adding film grain to AI-generated video?
Overlay or Soft Light are commonly used for applying grain layers over generated footage, as they integrate the grain texture with the tonal values of the image below. For a subtler result, reducing the opacity of the grain layer on Overlay mode gives precise control over intensity.
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