Reduce noise v4 nuke1/23/2024 When enabled, existing channels are cleared to black before drawing into them. intersect bbox and format - restrict the output image to an intersection of the bounding box and incoming format area.union bbox and format - restrict the output image to a combination of the incoming bounding box and format area.format - restrict the output image to the incoming format area.bbox - restrict the output image to the incoming bounding box.If you don’t want this to happen, set premult to rgb instead. Note:Selecting rgba premultiplies the alpha against itself (a*a). Where the noise is opaque (the matte is white or full), the input channels keep their full value. For example, where there is no noise (the matte is black or empty), the input channels are set to black. Premultiply multiplies the chosen input channels with a mask representing the noise. If you set this to something other than none, you can use the checkboxes on the right to select individual channels. The noise is rendered into these output channels. If you cannot see the mask input, ensure that the mask control is disabled or set to none. By default, the noise is limited to the non-black areas of the mask.Īt first, the mask input appears as triangle on the right side of the node, but when you drag it, it turns into an arrow labeled mask. The image sequence to which noise is added.Īn optional image to use as a mask. See also Grain, ScannedGrain, and F_ReGrain. Adds various types of seemingly random noise to the input image, all based on the Perlin noise function.
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