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Resolve FX · Film Emulation · Film Grain

Film Grain

Procedurally generated film-style texture with gauge presets, multiple composite modes, grain geometry, colour/tonal weighting and diagnostics for motion and delivery.

8mm / 16mm / 35mmCompositeGrain ParamsTonal controlsStudio
Core idea: Film Grain is a generated texture layer, not a colour grade and not a substitute for Film Damage. Shape the grain itself first, then decide how much of it belongs in the shot.

Every control group

Treat preset, grain structure, compositing and tonal response as separate decisions

Starting model

Film Grain Presets · Composite · Opacity

Film Grain Presets selects the starting character of the procedural grain: 8mm, 16mm and 35mm families with stock/speed variants. It is not a LUT or colour transform — the preset seeds the grain generator. Composite Type defines how the grain layer is mathematically combined with the image, while Opacity controls the overall contribution of that layer.

  • 8mm generally starts coarser/more obvious; 35mm starts finer and calmer
  • A preset is a starting point, not a historically exact emulation of one stock
  • Opacity works best as the final trim after the structure is tuned
How grain enters the image

Composite Type

Overlay is a neutral starting point, but the menu also includes Multiply, Darken, Lighten, Screen, Subtract, Hard Light, Soft Light, Linear Light, Vivid Light and other modes. They do not merely change strength — they alter how the grain layer interacts with source luminance. The same Grain Strength can therefore feel radically different under different Composite Types.

  • Overlay / Soft Light are useful integrated-texture starting points
  • Screen/Lighten bias the result toward lighter grain
  • Multiply/Darken emphasise the darker component
Grain geometry and contrast

Texture · Size · Aspect · Strength

Texture controls separation between individual grains: larger values spread them apart, smaller values build a denser pattern. Grain Size scales the grains themselves. Grain Aspect Ratio stretches or compresses their shape. Grain Strength changes the contrast of the grain layer — unlike Opacity, it changes the internal structure before that layer is composited into the image.

  • Texture = spacing/density; Grain Size = scale of an individual grain
  • Aspect Ratio is for deliberately non-square grain structure
  • Judge Strength at 100% and in motion, not only in a reduced viewer
Character of the grain layer

Offset · Symmetry · Softness · Saturation

Offset shifts the brightness of the whole grain layer and therefore changes the balance between light and dark grains. Symmetry redistributes their contrast asymmetrically. Softness blurs transitions between grains and is especially useful when a sharp digital pattern starts resembling a noise overlay. Saturation at 0 makes the grain monochrome; raising it introduces a colour component.

  • Offset and Symmetry reshape the light/dark balance inside the grain
  • Softness blurs the grain layer, not the entire image
  • Saturation = 0 gives monochrome grain
Tonal and channel distribution

RGB · Shadows · Midtones · Highlights

Advanced Controls let you change the Red, Green and Blue contribution to the generated grain, while Shadows / Midtones / Highlights control how much grain is composited into each tonal region. This is one of the most useful sections: if the shadows already contain sensor/compression noise, you can reduce synthetic grain there without removing texture from midtones/highlights.

  • RGB controls change the colour-channel contribution of the grain
  • Shadows/Midtones/Highlights control tonal grain amount, not exposure
  • Animate On Every Refresh helps expose temporal behaviour while tuning
Diagnostics and final mix

Grain Only · Freeze · Global Blend

Grain Only isolates the generated grain layer — the clearest way to inspect pattern, density, colour and tonal distribution without the image itself. Freeze holds the pattern for controlled A/B comparisons. Global Blend is the wet/dry mix of the complete Resolve FX; use it after the grain structure has already been tuned with the dedicated controls and Opacity.

  • Grain Only is a layer diagnostic, not final output
  • Freeze is useful for A/B, but final grain must be judged in motion
  • Global Blend is the final overall trim

Preset is not the answer

Gauge names set a starting texture; the shot and codec decide the final grain

The menu gives many 8mm, 16mm and 35mm variants. Use them to get near the desired scale and character, then tune Texture, Size, Strength, Softness and the tonal weights. A preset that looks perfect on a 4K master may become too fine or too strong after a streaming encode.

Practical rule: evaluate Film Grain at 100%, in playback, and after the actual delivery encode. All three views answer different questions.

Production workflow

Six passes from a preset to grain that survives delivery

01

Choose gauge by texture, not by prestige

Start from 8mm/16mm/35mm according to the scale and character you actually need. A smaller gauge is not automatically more cinematic; it is simply a different starting texture.

02

Tune structure before intensity

Set Texture, Grain Size, Aspect Ratio, Strength and Softness while inspecting Grain Only at 100%. Opacity cannot rescue a badly shaped grain pattern.

03

Choose the composite behaviour

Overlay is a safe starting point. Change Composite Type only when the image benefits from a lighter, darker or more contrast-biased interaction.

04

Distribute grain tonally

Use Shadows/Midtones/Highlights to keep synthetic grain from fighting existing noise or overloading clean highlights.

05

Judge motion and delivery

Play the shot at speed and test the real delivery codec. Fine grain can disappear, alias or turn into compression mush after H.264/H.265/streaming transcodes.

06

Trim Opacity / Blend last

Once structure, tonal distribution and composite behaviour are correct, use Opacity and finally Global Blend for the last subjective intensity trim.

Common failures

Most bad grain is a scale, tonal-distribution or delivery problem

01

Grain looks like digital noise

Cause: Size is too small, Strength too high, Softness too low, or the composite mode is too aggressive.

Fix: Inspect Grain Only, enlarge/soften the structure and lower Strength before touching Opacity.

02

Shadows turn into a dirty block

Cause: Synthetic grain is stacking on top of sensor noise, denoise residue or codec noise.

Fix: Reduce the Shadows amount, clean objectionable noise before Film Grain, and judge at full resolution.

03

The grain disappears after export

Cause: The delivery codec/bitrate is smoothing very fine texture.

Fix: Test the actual master and web encode. Slightly larger/stronger grain often survives compression better than ultra-fine low-amplitude noise.

04

The effect screams 'preset'

Cause: A stock preset was accepted without matching scale, tonal response and delivery to the shot.

Fix: Treat the preset as a base only; reshape Size/Texture/Strength and tonal controls shot by shot or at least scene by scene.

Texture as a separate layer

Film Grain: the signal-level model

Film Grain in Resolve is a procedurally generated texture layer rather than a static overlay file or a colour transform. The plug-in creates individual simulated grains with falloff at project resolution, then lets you shape spacing, scale, contrast, softness, colour, tonal weighting and the way that layer is composited with the image.

Blackmagic's Reference Manual divides Film Grain into Main Controls, Grain Params and Advanced Controls. A preset selects the starting 8mm/16mm/35mm model; Composite Type and Opacity define how the grain layer enters the picture; Texture/Size/Strength/Offset/Symmetry/Softness/Saturation shape the layer itself; RGB and Shadows/Midtones/Highlights define channel and tonal weighting. Grain Only and Freeze are diagnostic modes, while Animate On Every Refresh helps reveal temporal behaviour while tuning.
A preset does not guarantee historically exact emulation of a specific stock, and heavy grain does not automatically make an image 'filmic'. The most common technical failure is judging grain only in the viewer without checking 100%, playback and the real delivery codec. Fine texture is especially sensitive to scaling, sharpening and H.264/H.265 compression.

Use it when

  • restoring controlled texture after denoise, compositing or overly sterile digital capture
  • integrating clean CG/graphics/retouched regions with live-action imagery
  • scene/timeline finishing when a controlled 8mm/16mm/35mm grain character is required

Choose another tool when

  • you are trying to fix sensor/compression noise — use Noise Reduction first, then rebuild deliberate grain after clean-up
  • you need scratches, dirt, vignette and temporal film damage — that is a separate Film Damage workflow

Control → signal meaning → verification

LayerWhat it meansHow to verify
Film Grain PresetsSelects a starting procedural profile from 8mm/16mm/35mm families and stock/speed variants.Compare scale/character at 100%; do not choose a gauge by name alone.
Composite Type + OpacityComposite Type changes how the grain layer mathematically interacts with picture luminance; Opacity changes the contribution of the already-shaped layer.A/B with identical grain params: Overlay/Soft Light versus lighter/darker bias modes.
Texture / Grain Size / Aspect RatioTexture controls separation/density between grains, Size scales individual grains, Aspect Ratio controls their elongation.Use Grain Only at 100% across relevant resolutions; do not confuse Texture with Size.
Strength / Offset / Symmetry / Softness / SaturationShape grain-layer contrast and light/dark balance, edge softness and colourfulness.Use Grain Only + viewer; Saturation at 0 should give monochrome grain.
Red / Green / BlueControl the grain contribution across RGB channels.RGB Parade and neutrals if coloured grain starts creating unwanted chroma texture.
Shadows / Midtones / HighlightsControl how much grain is composited into the corresponding tonal regions.Pay special attention to shadows after denoise and highlights after tone mapping/compression.
Grain Only / Freeze / Animate On Every RefreshStructure diagnostics: isolate the layer, hold a random sample for A/B, and expose temporal changes while tuning.Freeze is only for comparison; final approval should happen after unfreezing in playback.
Global BlendFinal wet/dry mix of the complete Resolve FX after internal Opacity and tonal/channel controls.Do not use Blend to hide a badly shaped grain structure — fix the generator first.

Production workflow

  1. 01Remove objectionable sensor/compression noise and finish the base grade before building deliberate grain.
  2. 02Choose an 8mm/16mm/35mm preset as a starting texture family, then enable Grain Only.
  3. 03At 100%, tune Texture, Grain Size, Aspect Ratio, Strength and Softness; only then return to the picture.
  4. 04Choose Composite Type and set Opacity; Overlay is a safe reference point for A/B.
  5. 05Tune RGB and Shadows/Midtones/Highlights for the shot's actual noise/texture conditions.
  6. 06Disable Freeze, play the shot and test both master and delivery encode; finish with Opacity/Global Blend.

Diagnostics: symptom → cause → fix

Grain looks like electronic noise

Likely cause: Grain Size is too small, Strength/edge definition too high and/or Composite Type too aggressive.

Fix: Open Grain Only, increase Size, add Softness and reduce Strength before changing Opacity.

Shadows become dirty

Likely cause: Synthetic grain is stacking on sensor noise, denoise residue or codec noise.

Fix: Clean the noise before Film Grain and reduce Shadows weighting; do not solve it only with Global Blend.

After YouTube/H.264 the grain disappears or turns to mush

Likely cause: The fine texture falls below what the scaling/bitrate/codec can preserve.

Fix: Test the delivery encode and, if needed, increase Size/Strength slightly rather than judging from the master viewer alone.

The preset is too obvious

Likely cause: The default profile was not adapted to resolution, shot contrast and tonal texture.

Fix: Use the preset only as a base; customise Size/Texture/Strength/tonal weighting.

Node placement

Film Grain usually belongs late in the creative chain, after denoise and after spatial FX such as blur/defocus that would otherwise soften the generated grain. Some show pipelines place grain before the output transform so display rendering also acts on the texture; that is valid when the ordering is intentional and consistent across shots. The key is not to add grain before a stage that later destroys its spatial/temporal structure.

Scopes / validation

A 100% Viewer, playback and the delivery encode matter more than classic scopes for the grain itself. RGB Parade is useful for coloured grain/RGB imbalance; Waveform can reveal when Composite Type and tonal weighting make the perceived density too aggressive in shadows/highlights. Grain Only is the primary diagnostic view of the generator.

Managed-pipeline warning

Film Grain does not perform colour management. It composites procedural texture into whatever signal state reaches the node. Scene-referred and display-referred placement can therefore produce different-looking behaviour, especially around strong tone mapping or an output transform. Choose the stage intentionally and do not treat Film Grain as a substitute for CST/DRT or Film Look Creator.

Do not confuse the roles

Film Grain versus the neighbouring Color FX

Color Space Transform

explicit conversion between colour-space/gamma descriptions, including tone/gamut mapping

Open guide
ACES Transform

node-level input/output through the standardised ACES transform set

Open guide
Chromatic Adaptation

conversion between white points / illuminants through a CAT model

Open guide
Color Compressor

compressing hue/saturation/luminance variation around a selected Target Color

Open guide
Color Stabilizer

temporal matching of unwanted brightness/white-balance drift around a chosen reference and analysis region

Open guide
Contrast Pop

selective increase or reduction of local contrast at a chosen structure scale and within a controlled tonal range

Open guide
DCTL

programmable host for custom transform code whose maths, UI and signal contract are defined by the selected DCTL/DCTLE

Open guide
Dehaze

depth-weighted reduction of smog/airlight/haze through a simulated depth matte and coupled colour/contrast correction

Open guide
Despill

suppression of reflected red/green/blue screen spill after the subject has already been isolated by key/matte/roto

Open guide
False Color

spatial display of exposure zones through camera-matched or creative false-colour mapping and a legend

Open guide
Gamut Limiter

final hard-clipping of chromaticities to a specified delivery/QC gamut boundary

Open guide
Gamut Mapping

tone/gamut remapping through luminance roll-off, saturation compression/clip and OOTF without a separate input/output colour-space conversion

Open guide
Invert Color

simple independent inversion of Red/Green/Blue/Alpha channels for creative and technical channel/key operations

Open guide
NVIDIA RTX Video HDR

AI-assisted SDR→HDR mapping with an explicit input/output signal contract, Middle Gray, target peak luminance and creative shaping

Open guide
Camera Shake

procedural Pan/Tilt/Rotation/Zoom motion with waveform, randomness, pauses and blanking handling

Open guide
ColorTone Diffuser

creative optical-look effect combining spatial diffusion, coloured Tone Lights, tonal protection, a falloff mask and a LUT-compatible subset

Open guide
Film Damage

procedural texture/look effect combining blur/colour drift, vignette, changing dirt and up to five scratches with motion/flicker

Open guide
Film Look Creator

integrated scene-referred film-emulation environment combining a baked-in Blackmagic film response, colour shaping, halation/bloom/grain/flicker/gate weave and a LUT-compatible subset

Open guide
Flicker Addition

dedicated temporal exposure modulation with tonal flicker modes, RGB selection, smoothness, randomness, pauses and a deterministic seed

Open guide
Halation

film-style highlight scatter using an isolation matte, chromatic dye-layer reflections, secondary glow and optional grain

Open guide
Split Tone

creative shadow/highlight colour separation through Natural/Strong/Custom modes, Pivot, Hue Angle, neutral protection and colour-space overrides

Open guide
Vignette

edge framing and visual-attention control through Basic/Advanced geometry, position, colour and compositing

Open guide
Color Generator

solid-colour generation for Layer Mixer, masks, fills and simple colour washes

Open guide
Noise Reduction

Why objectionable noise is best removed before deliberate Film Grain.

Related chapter
Film Damage

Dirt, scratches, vignette and damage are a separate task from the grain generator.

Related chapter
FilmGrain in Fusion

Parallel FilmGrain implementation in the Fusion node workflow.

Related chapter
Node pipeline

How to order denoise, spatial FX, grain and output stages relative to one another.

Related chapter

Primary references used for this technical layer

Blackmagic Design · DaVinci Resolve Reference Manual · Film Grain
Primary semantics for Film Grain Presets, Composite Type, Opacity, Grain Params, RGB/tonal controls and Animate on Every Refresh.Blackmagic Design · DaVinci Resolve Colorist Guide
Official finishing context for Film Grain and its use as a separate film-emulation texture layer.Blackmagic Design · DaVinci Resolve
Current Resolve Studio information: Film Grain is included among Studio-only additional effects.ВидеоМонтажер · Fusion FilmGrain
Related FilmGrain node in the Fusion encyclopaedia for comparing parameters/workflow.

Panel names are cross-checked against the Resolve 21 screenshots already shown on each page. Where Blackmagic does not publish proprietary implementation math, the article describes documented signal semantics and observable behaviour rather than inventing an algorithm.

FAQ

Practical Film Grain questions

Is Film Grain just noise?

No. Resolve procedurally generates simulated grains with falloff at project resolution and exposes controls for spacing, scale, contrast, softness, colour, tonal distribution and compositing.

What is the difference between Grain Strength and Opacity?

Grain Strength changes the contrast of the generated grain layer itself. Opacity fades that already-generated layer against the source. They can therefore produce different results even at similar perceived intensity.

Should I always use 35mm grain for a cinematic look?

No. Gauge is a texture choice. 8mm/16mm can be right for coarse, documentary or archival character; 35mm is generally a finer starting point. Final Size and Strength still need shot-specific tuning.

Where should Film Grain sit in the node tree?

Usually late, after denoise, base correction, major transforms and spatial effects that would otherwise blur or distort the grain. It can sit before an output transform if the look pipeline is designed that way, but document the signal state and avoid accidentally processing the grain twice.

Why use Grain Only and Freeze?

Grain Only exposes the generated layer without picture content; Freeze holds the random pattern so structural changes can be compared against the same grain sample. Unfreeze and play before final approval.

Is Film Grain available in the free Resolve?

Film Grain is a DaVinci Resolve Studio feature.

Next steps

Keep damage, grain and the base grade as separate responsibilities

Previous FX

Film Damage

Blur, colour drift, vignette, dirt and scratches are a separate damage layer.

FilmGrain · Fusion

Compare the FilmGrain node implementation in the Fusion encyclopaedia.

Noise Reduction

Remove objectionable sensor/compression noise before rebuilding deliberate grain.

Next FX

Film Look Creator

Continue from dedicated grain into Blackmagic's integrated scene-referred film-emulation effect.

Film Look Creator