Every video editor hits this moment: you place a light leak, sparkle effect, or smoke overlay on a track above your footage and it just sits there as an opaque rectangle. You need a blend mode — but the dropdown has 30+ options.
Three handle 90% of overlay compositing: Screen, Add, and Overlay.
Screen: The Default for Overlays on Black
Screen blend mode multiplies the inverse of both layers. In practice, this means black pixels become transparent and bright pixels stay visible.
Use Screen when your overlay has a black background — light effects, sparkles, fire, lens flares, glitch artifacts. It’s the most common blend mode for motion graphics overlays and the safest default choice.
One quirk: Screen can slightly wash out the footage underneath. Bright areas of the overlay lighten the underlying image. If the effect looks too faded, reduce the overlay’s opacity or use Levels to darken the overlay’s midtones before applying Screen.
Add (Linear Dodge): Brighter Than Screen
Add is similar to Screen but more aggressive. It literally adds the pixel values together. White on white becomes super-white (clipped). Dark areas have no effect.
Use Add when you want overlays to feel more intense — electric effects, neon glows, energy bursts. The result is punchier and brighter than Screen.
The risk: Add blows out highlights easily. If your footage already has bright areas, Add mode can clip them to pure white. Lower the overlay opacity to compensate.
Overlay: Contrast and Texture
Overlay blend mode is different from the other two. It combines Multiply (darkening) and Screen (lightening) based on the underlying footage. Dark areas get darker, light areas get lighter.
Use Overlay for texture effects — film grain, paper textures, subtle color washes. It adds contrast and character to footage without the purely additive effect of Screen.
Overlay preserves the tonal range of your footage better than Screen or Add. It’s the right choice when you want the effect to feel integrated rather than layered on top.
Quick Decision Guide
- Bright elements on black background: Screen
- Intense light effects that need to pop: Add
- Texture, grain, or subtle color effects: Overlay
- Overlay on green screen: Don’t use blend modes — key out the green instead
Combining Blend Modes
You’re not limited to one. A common setup:
- Base layer: your footage
- Track 2: film grain overlay set to Overlay at 30% opacity
- Track 3: light leak set to Screen at 50% opacity
- Track 4: sparkle effect set to Add at 40% opacity
Each blend mode handles a different type of effect. Stacking them creates a rich, layered composite that looks natural.
Platform Availability
These three blend modes are available in every major editing application — Premiere Pro, After Effects, DaVinci Resolve, and Final Cut Pro. The names are identical across platforms, so techniques transfer directly.
