Noise
Updated: 4 Dec 2023
Generates an image of random noise.
Noise
Method #
This node generates random noise pattern per pixel.
This node can be connected to any node which accepts an image input.
Parameters
These properties control the 3D transforms of the node. Transforms will generally be inherited by child nodes, although they can be ignored through the Inherit Transform Channels attributes.
These properties control the core behaviours of the node.
Parameter Details Active Enables or disables the effect. Disabling the effect means it will no longer compute, so disabling a node when not in use can improve performance.
Preview In Viewport Preview the generated image as an overlay in the viewport.
- Off : No preview is generated.
- RGBA : Preview the image blended with alpha in the viewport.
- RGB : Preview the colour channels in the viewport.
- Alpha : Preview the alpha channel in the viewport.
- PIP : Preview the image blended with alpha in the viewport, in a smaller picture in picture display, on top of the existing content.
Width The resolution of the generated image horizontally.
Height The resolution of the generated image vertically.
Update Time Mode How the generator updates with relation to the timecode.
- Locked To Timecode : The generator animations are locked to the timecode and the same time will always yield the same result.
- Running / Loopable : The generator animations are disconnected from the timecode and will run seamlessly at the end of the composition.
Intensity How strong the generated noise is.
Amount How much noise is generated per pixel.
Scale Scale the size of the generated fractal noise.
Animation Rate The speed at which the fractal noise is animated.
Attack How quickly a random point reaches its peak.
Decay How quickly a random point decays.
RGB Noise Toggle whether the noise is randomised colour, or randomised black and white..
Mode Choose different kinds of noise.
- Point : The noise generates random points of differing brightness for each frame.
- Lines : The noise generates parallel lines of differing brightness.
- Time Filtered Points : The noise is generated through random points at random times, allowing for the noise to be animated smoothly.
These properties control how the generators are coloured and blended with other images.
Parameter Details Colour Change the colour of the generated image.
Blend Amount The amount the generated image blends with the project, depending on the compositing mode chosen.
Blend Mode Choose how the image blends with the scene. See Blend Modes for details.
- Solid : The generator is solid, with a filled alpha channel. Blend amount is ignored.
- Blend : The generator RGBA values have matching alpha channels.
- Pre-Mul Blend : The RGB values are solid white, and the generator colours are stored in the alpha channel alpha. Usually gives the best results for colour blending.
Inputs
These properties control the 3D transforms of the node. Transforms will generally be inherited by child nodes, although they can be ignored through the Inherit Transform Channels attributes.
These properties control the core behaviours of the node.
| Parameter | Details |
|---|---|
| Active | Enables or disables the effect. Disabling the effect means it will no longer compute, so disabling a node when not in use can improve performance. |
| Preview In Viewport | Preview the generated image as an overlay in the viewport.
|
| Width | The resolution of the generated image horizontally. |
| Height | The resolution of the generated image vertically. |
| Update Time Mode | How the generator updates with relation to the timecode.
|
| Intensity | How strong the generated noise is. |
| Amount | How much noise is generated per pixel. |
| Scale | Scale the size of the generated fractal noise. |
| Animation Rate | The speed at which the fractal noise is animated. |
| Attack | How quickly a random point reaches its peak. |
| Decay | How quickly a random point decays. |
| RGB Noise | Toggle whether the noise is randomised colour, or randomised black and white.. |
| Mode | Choose different kinds of noise.
|
These properties control how the generators are coloured and blended with other images.
| Parameter | Details |
|---|---|
| Colour | Change the colour of the generated image. |
| Blend Amount | The amount the generated image blends with the project, depending on the compositing mode chosen. |
| Blend Mode | Choose how the image blends with the scene. See Blend Modes for details.
|
| Name | Description | Typical Input |
|---|---|---|
| Colour Ramp | Specify a range of colours the generator can use through its gradient. | Colour Ramp |
| Transform Modifiers | Apply the transforms of another node to this node. | Null |
| Target Node | Modifiy the rotations of the node to always direct the z axis towards the input. | Null |
| Local Transform Override | Apply the transforms of another node to this node, relative to its parent. | Null |