When you first switch to automatic profiling, Denoise uses the current frame to calculate the profile. This way, Denoise removes different amounts of noise from the shadow, midtone, and highlight areas of the Source image. Automatic - let Denoise estimate a noise profile automatically based on the entire Profile Frame.Constant is nearly always a good choice, but if you find that your denoise results are too smooth and adjusting Denoise Amount and Roll Off doesn’t help, you should try setting this to Automatic. Constant - let Denoise look at the analysis region and remove the same amount of noise across all intensities.This can be particularly useful if your image contains a lot of sub-blacks, areas of black with a value less than 0.
When enabled, blacks in the image are lifted toward white. Modulated - for most cases, this is a good option.Constant - try this if you’re working on film footage with lots of detail and not too much noise in dark regions, or digital footage with lots of detail and not too much noise in light regions.See Nuke 14 Release Notes for more information on the GPUs Nuke supports.Ĭhoose Film or Digital according to what type of footage you’re working with.Ĭhoose what type of noise you’re dealing with: You should also select this if you wish to render from the command line with the -gpu option. Note:Enabling this option with no local GPU allows the script to run on the GPU whenever the script is opened on a machine that does have a GPU available. When enabled, rendering occurs on the Local GPU specified, if available, rather than the CPU. Note: Selecting a different GPU requires you to restart Nuke before the change takes effect. You can select a different GPU, if available, by navigating to the Preferences and selecting an alternative from the default blink device dropdown. it was not possible to create a context for processing on the selected GPU, such as when there is not enough free memory available on the GPU.no suitable GPU was found on your system.Use CPU is selected as the default blink device in the Preferences.If you’re working with complex footage that doesn’t have a convenient area for analyzing noise, you can use the Noise input to analyze noise from another image and apply the results to your footage.ĭisplays the GPU used for rendering when Use GPU if available is enabled.
Inputs and ControlsĪn optional input for attaching pre-calculated motion vectors, such as those created by VectorGenerator.ĭenoise can generate motion vectors internally, but connecting this input may produce significantly faster results.Īn optional input for attaching a separate noise file. It uses spatial or temporal filtering to remove noise without losing image quality. The Denoise node is an efficient tool for removing noise or grain from your footage.
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