Resolume Blend Modes Explained

Blend modes are how Resolume decides what your final output looks like when more than one thing is happening at once — multiple layers stacked, one clip transitioning into another, an effect mixing into the base image. They're also where most beginner comps go sideways. Default settings produce muddy "white soup" stacks, and the names ("Luma Key 1", "Difference 1") tell you almost nothing about what each one does.

This is the page that fixes that. Every commonly-used blend mode in Resolume, what each one actually does to your image, when to reach for it, and the small handful Rob uses on every show.

Lesson 7 in our beginner course, right after Lesson 6 on audio reactivity. This also closes the loop on a promise we made back in Lesson 2 when we told you to change the default layer blend mode from Add to Alpha — this is the why.

Prefer to watch? Here's the full walkthrough — keep scrolling for the written version.

The Three Places Blend Modes Live

Before we get into the individual modes, the framing that makes the whole topic easier: Resolume lets you set blend modes in three different places, and each one affects your output differently.

On a layer — controls how the layer composites with the layers below it
On a transition — controls how one clip swaps to the next on the same layer
On an effect — controls how the effect's output composites back into the underlying image (only really matters when effect opacity is animated)

Same names, same modes, three different jobs. Knowing which slot you're in saves a lot of "why isn't this working" confusion.

Layer Blend Modes — The Defaults That Trip You Up

Click the small dropdown arrow on any layer. The blend mode for that layer lives there. The default is Add — and Add is the one that produces "white soup" stacks the moment you have multiple bright layers on at once.

Add — what's actually happening

Add literally adds the color values of two layers together. If both layers have bright areas in the same spot, those values stack — past the upper bound of "pure white" — and you get blown-out highlights. With three Add layers running bright content, the whole composition becomes an indistinguishable bright mess.

Use Add intentionally for specific bright-on-dark looks (laser-style overlays on a black base). Don't use it as your default for stacking full-frame content.

Alpha — the clean default

Alpha (called Normal in other software like After Effects or Photoshop) mixes layers based on opacity. The more transparent a pixel is, the more of the layer below shows through. Edges blend smoothly, soft transitions stay soft, partial transparency is respected.

For most general-purpose layer stacking, Alpha is the right default. This is why Lesson 2 had you switch the global default blend mode from Add to Alpha — saves you from white-souping every comp you build going forward.

Clip Blend Modes — and the Asterisk That Means You Forgot

Layers aren't the only place blend modes live. Every individual clip has its own blend mode dropdown in the clip panel. When you set a blend mode on a clip, that clip's mode overrides the layer's blend mode.

Resolume signals this with a small asterisk (*) next to the layer's blend mode. The asterisk is saying: "this layer is no longer using its own blend mode, the clip is taking over."

The trap: you set a clip-specific mode for a one-off look, forget about it, then later try to change the layer's blend mode and nothing visibly happens. That's because the clip mode is winning. If a layer's blend mode change isn't doing anything, look for the asterisk.

The 50 Series — Locked at Half-Opacity

Scroll through the blend mode dropdown and you'll see a chunk of modes prefixed with 50 — 50 Add, 50 Alpha, 50 Mask, and so on. These are the same blend modes, but the opacity slider for the layer is locked so that 50% on the slider behaves like 100%.

Think of them as "half-strength" versions for finer dynamic control on your opacity faders during a live mix. Most you can ignore — the one you'll absolutely use is 50 Mask.

50 Mask — How Resolume Masking Actually Works

Want to use one clip as a mask for another? 50 Mask is the answer. Set a layer's blend mode to 50 Mask, and that layer becomes a mask cutting into the layer beneath it. Black areas of the mask hide, white areas reveal.

Black-and-white clips work best as masks for obvious reasons. If you have a great mask clip but it's living in a deck full of regular content, you can set 50 Mask on that specific clip (clip-level blend mode) so it always masks no matter what layer it's fired on.

The Dark Series — Darken, Multiply, Burn

Three modes that all darken the composited image, in increasing intensity.

Darken — keeps the darkest pixels from both layers. Light parts of the top clip get replaced by the dark parts of the base. Good for soft mask-like looks.
Multiply — multiplies the RGB values. Slightly darker result than Darken, respects black. Rob's favorite of the three — it's the most predictable.
Burn — the intense version. Higher contrast, more blown-out shadows. Use it for impact moments, not as a default.

The Light Series — Lighten, Screen, Dodge

Mirror image of the Dark series — three modes that lighten in increasing intensity.

Lighten — keeps the lightest pixels from both layers. Dark parts get replaced by the light parts of the underlying clip.
Screen — the lighter-side opposite of Multiply. Brightens more aggressively than Lighten, retains less of the dark content.
Dodge — like Burn but lightening. Pushes highlights until they overexpose. High-contrast accent mode.

Overlay — Maximum Contrast

Overlay is a 50/50 combination of Multiply and Screen. Dark parts get darker, light parts get lighter, mid-tones stay roughly where they were. The result is one of the most contrasty blend options Resolume gives you — great when you want two clips to fight each other dramatically rather than blend softly.

The Difference Series — Subtract, Difference, Exclusion

These are where you start getting unusual color treatments — not "blend two clips together cleanly", but "produce something weird and cinematic".

Subtract — opposite of Add. Subtracts RGB values from each other. White parts of the top clip turn the underlying clip black where they hit.
Difference — returns the literal difference between the two layers' RGB values. Produces inverted, psychedelic color shifts you can't get any other way.
Difference 1 — inverted version of Difference. Same vibe, different palette.
Exclusion — similar to Difference but mid-zones aren't affected, and whites/blacks get swapped. Cleaner than Difference for some content.

Luma Modes — The Underrated Workhorses

Luma modes use the brightness of pixels rather than their alpha channel to decide what's visible. Three to know:

Luma Key — uses luminance as a key. Darker pixels become transparent, lighter pixels stay opaque.
Luma Key 1 — opposite. Lighter pixels become transparent.
Luma is Alpha — turns brightness into the alpha channel. Bright areas become fully opaque, dark areas become fully transparent. One of Rob's most-used modes — it's how you make content with no real alpha channel act like it has one.

Transition Blend Modes — Only Two You Actually Need

Transitions are the third place blend modes live. To see the transition controls in your UI, head to View → Show Layer Transition Controls (we turned this on in Lesson 2).

The opacity fader next to each layer's transition control is the transition duration — longer = slower fade. Match duration across all your layers for consistency.

For transition blend modes, Rob uses two and pretty much only two:

Alpha — the default. Clean soft fade between clips. Nothing fancy, gets out of the way, looks great.
Displace — a melty, glitchy horizontal pixel shift based on the source layer's color values. More effect than blend, but tasteful in moderation.

The rest of the transition-leaning blends (Cut, Cube, Jitterbug, Lores, Metamix, RGB-series) lean hard into glitchy-effect territory. Cube does a cube transition. Cut is a hard cut. Jitterbug and Lores produce different glitch flavors. Worth experimenting in build mode, but heavy-handed for most live shows.

Effect Blend Modes — The "Only Matters Sometimes" Case

Every effect in your effect stack also has its own blend mode. Here's the thing most beginners don't realize: this blend mode only visibly does anything when the effect's opacity is being animated (timeline, audio reactivity, MIDI control).

Static opacity at 100%? You won't see much difference between Alpha and Difference on an effect. But put an audio-reactive envelope on the effect's opacity, and now the blend mode determines how that pulsing effect looks against the layer underneath. Worth swapping through them on your audio-reactive effects to find treatments you like.

The Cheat Sheet

Default layer blend mode: Alpha (not Add)
Stacking multiple layers cleanly: Alpha
Using a clip as a mask: 50 Mask
Darkening composite: Multiply (default), Darken (subtle), Burn (intense)
Lightening composite: Screen (default), Lighten (subtle), Dodge (intense)
Maximum contrast between two clips: Overlay
Weird inverted color treatments: Difference, Exclusion
Brightness-as-alpha trick: Luma is Alpha
Transitions: Alpha (default), Displace (for melty glitch)
When a layer's blend mode change does nothing: check for the asterisk — clip mode is overriding it

What's Next

The full beginner course path:

Lesson 9 (Groups in Resolume) is in production — when it ships it'll close out the third "we'll cover that in a future tutorial" promise we made back in Lesson 2.

From here, the highest-leverage moves once blend modes click:

Sprite Sheets for VJs — pairs perfectly with 50 Mask for custom symbol overlays
Effect Stacks in Resolume — where effect blend modes become genuinely useful

Go Deeper Inside the Academy

Specific blend mode interaction confusing you — or curious about how Rob uses blend modes inside specific effect stacks? Drop a comment on the YouTube video above or email vjacademy@outlook.com and we'll dig in.