COLOR / TOOL GUIDE 13 / 13
Motion.
Less noise. More texture.
Temporal NR, Spatial NR and Motion Blur solve different problems. Choose by defect type and inspect motion as carefully as still-frame cleanliness.
compares neighbouring frames with motion compensation
analyses noise within a single frame
analyses a noise pattern from a flat image region
STUDIO Noise-reduction features require DaVinci Resolve Studio.
The Spatial NR capture uses Faster, not UltraNR. UltraNR is explained separately in the text. Noise reduction requires Studio; judge the result in motion.
BEFORE MOVING A CONTROL
Understand what you are changing.
Distinguish noise from useful detail first
Fabric texture, hair, film grain and compression blocks are not the same defect. Inspect at 100% and during playback. If noise becomes conspicuous only after aggressive shadow lifting, reconsider the grade itself.
Remove distracting defects while preserving natural structure. Perfectly smooth skin in a still may look worse in motion. Compare bypass at the same scale and comparable brightness.
Temporal and spatial cleanup have different costs
Temporal NR uses neighboring frames and motion estimation. This can separate random noise, but motion errors can create trails and smearing. A larger frame window is not always better: inspect fast edges, occlusion and pans.
Spatial NR works within a frame and can help when temporal analysis is unstable, but heavy settings destroy microcontrast. Evaluate luma and chroma separately; both methods need not be strong or used together at all.
UltraNR and Motion Blur are different functions
UltraNR is a Studio spatial-denoising mode. The Resolve 19 guide describes Analyze and Show Patch, using a relatively flat region to estimate noise. Ensure the sample does not contain useful fine texture; automatic estimation still needs review.
Motion Blur synthesizes motion blur rather than removing noise. Do not use it to hide temporal artifacts. Existing shutter blur may make additional synthesis excessively soft. Evaluate it separately after choosing the required cleanup.
FROM PURPOSE TO CONTROL
Choose deliberately, not by trial and error.
The interface images are collected in the viewer above. Here, focus on what each control changes and when to use it; values in the captures are not universal presets.
Time, space and blur
Temporal NR: noise reduction across time
Temporal NR compares neighboring frames and uses motion information to separate random noise from real detail. It is especially useful on noisy footage where scene structure persists from frame to frame.
Spatial NR: cleanup inside a single frame
Spatial NR works within the current frame. It is useful as a second stage after Temporal NR or when temporal processing is not practical, but aggressive settings can quickly soften fine texture.
Motion Blur: controlled motion blur
Motion Blur does not remove noise. It adds or strengthens blur on moving objects based on motion estimation. This is a visual treatment rather than an image-cleanup step.
Temporal NR controls
Frames
Controls how many neighboring frames participate in the analysis. More frames can strengthen noise reduction, but increase processing cost and require careful motion checks.
Motion Estimation Type
Selects how motion between frames is estimated. The more complex the movement and fine detail, the more important it is to avoid turning real motion into artifacts.
Motion Range
Sets the scale of motion the algorithm tries to account for. Too small can miss fast movement; too large can add processing cost without a useful gain.
Luma / Chroma / Motion Threshold
Separate luminance and chroma noise treatment and influence how strongly moving areas are processed. These are the controls you normally refine after choosing the base mode.
Blend
Lets you reduce the final Temporal NR effect. Useful when the cleaned image starts to feel too plastic and you want some original texture back.
TECHNICAL REFERENCE
Motion Effects — classify the noise first, then choose the algorithm
Temporal NR, Spatial NR and Motion Blur share one palette but operate on different principles. Temporal NR looks for persistent structure across neighbouring frames and separates it from random noise using motion estimation. Spatial NR analyses patterns within a single frame. Motion Blur uses motion estimation not for cleanup but to synthesise motion blur. The professional goal is not the smoothest possible image; it is reducing noise until it stops distracting while preserving texture and temporal stability.
How to read Motion Effects as a system
Aggressive settings cannot compensate for choosing the wrong method. Identify the artefact first, then use the minimum processing that solves it.
| Tool / control | What it analyses | When it helps | Main risk |
|---|---|---|---|
| Temporal NR | multiple frames + motion estimation | random sensor noise, chroma noise and temporally stable regions | ghosting, trails and smearing when motion is mis-estimated |
| Frames | size of the temporal window | increase the temporal evidence available for denoising | complex motion makes temporal mistakes more visible |
| Motion Estimation / Range | character and scale of motion | pans, fast subjects and small motion | a mismatched range can create temporal artefacts |
| Luma / Chroma Threshold | luma and chroma components of noise | treat chroma speckles and luminance grain independently | high thresholds begin classifying real detail as noise |
| Spatial NR | local patterns inside one frame | residual noise after Temporal NR or shots where temporal analysis is unstable | softening skin, hair, fabric and micro-contrast |
| AI UltraNR | a noise sample from a low-detail area | heavy noise where conventional spatial thresholds are difficult to tune | a poor sample area or trusting Auto without inspection |
| Motion Blur | estimated pixel motion | CG, retimes, overly crisp motion and creative motion treatment | double blur when the source already has enough shutter blur |
FROM KNOWLEDGE TO A REPEATABLE RESULT
One exercise. A result you can check.
Use a short noisy shot with motion, skin or fabric in Studio and preserve the original. Screenshot values document a particular panel state; they are not universal settings.
- 01
First identify the actual noise
Inspect the image at 100% and look at shadows, flat surfaces and chroma noise. Do not enable NR just because the panel exists.
- 02
Start with Temporal NR
When motion allows it, Temporal NR is usually the logical first step because it uses neighboring frames and can reduce noise with less loss of spatial detail.
- 03
Add Spatial NR only when needed
Use it as a second cleanup layer, not as a maximum-strength filter. If skin, hair and texture start to smear, the settings are already too aggressive.
- 04
Judge Motion Blur separately
Do not treat Motion Blur as part of noise reduction. It is a separate visual decision, best judged after the image is technically clean.
Self-check in Resolve; the site does not evaluate your work. Progress is not saved after reloading.
An editorial exercise for your own footage, not an automated check of a Resolve project. Work on a copy or separate version and evaluate the complete shot.
WHEN THE RESULT IS NOT WHAT YOU EXPECT
Find the cause, not a compensating slider.
01A moving subject leaves a trail+
Possible cause. Temporal NR is mis-matching motion or the temporal window/threshold is too aggressive
What to check. Frames, Motion Estimation Type/Range, Motion Threshold and difficult sections frame by frame
02Skin and hair look waxy+
Possible cause. Spatial NR or thresholds are suppressing real high-frequency texture
What to check. 100% comparison, Radius/Mode, Luma/Chroma thresholds and NR Blend
03Chroma speckles remain while detail is already soft+
Possible cause. luma and chroma are being treated equally even though their noise differs
What to check. reduce luma NR and adjust chroma treatment separately
04AI UltraNR gives an unstable result+
Possible cause. the sample patch landed on texture, a gradient or an unrepresentative area
What to check. Show Patch, the analysed frame, patch position/size and results across multiple frames
A SITUATION TO THINK THROUGHThe denoised still is clean but a moving hand leaves a trail. Should Spatial NR be increased?Compare your reasoning ↓
First reduce or bypass Temporal NR and inspect motion estimation and Frames. The trail may be a temporal artifact that spatial smoothing would merely hide at the expense of detail. Combine methods after addressing the cause, then review motion again.
FAQ
What else should you know?
What is the difference between Temporal NR and Spatial NR in DaVinci Resolve?
Temporal NR compares multiple frames and uses motion to separate noise from detail. Spatial NR works within a single frame. In practice, Temporal NR is often used first and Spatial NR as a secondary cleanup stage.
How many Frames should you use in Temporal NR?
There is no universal value. Start with a small number of frames and increase only when the noise genuinely requires stronger processing. The more complex the motion, the more carefully you should check for ghosting and detail loss.
Why can noise reduction make the image look plastic?
This usually means Temporal or Spatial NR is removing fine texture along with noise. Reduce thresholds, radius or overall Blend and compare skin, hair and fine texture carefully.
Should Temporal NR and Spatial NR always be used together?
No. If Temporal NR already gives a clean, natural result, Spatial NR may not be necessary. Add another stage only when visible noise remains and actually matters.
What is AI UltraNR and when should you use it?
AI UltraNR is a Spatial NR mode in Resolve Studio. It analyzes a selected flat image patch as a noise sample, so choose an area without useful texture first and then judge the result on skin, hair and fine detail.
Does Motion Blur in Motion Effects remove noise?
No. Motion Blur is for the appearance of movement, not noise reduction. Temporal NR and Spatial NR handle cleanup; Motion Blur handles motion appearance.
Sources and version notes
Checked against Blackmagic Design’s Color documentation and the relevant new-feature guides. Screenshots are from the site’s own supplied library; controls and layout can differ between versions. Examples are instructional, not universal production settings.