Surface Dither Copernicus node

Applies a halftone dithering pattern relative to UVs.

On this page	Parameters Inputs Outputs
Since	21.0

This node applies a halftone dithering. To avoid the dither pattern becoming too small and then aliasing, the node uses UV space to break into different texture levels.

The node computes the dithering in a provided texture map space instead of in image space. This allows the dither pattern to stick to objects rather than the camera.

Parameters ¶

Density Scale

The overall scale of the surface-stable pattern. This controls how big the halftone pattern is in UV space.

Pattern Scale

The overall scale of the textured pattern. This is a UV scaling factor.

Pattern Scale XY

The per-axis scaling of the textured pattern in UV space.

Pattern Offset

The translation of the pattern in UV space. As the pattern repeats, large changes may appear to do nothing.

Pattern Rotate

The rotation of the pattern in UV space.

Dot Scale

The global scale of the dotscale input and the Level Transition.

Output Type

The type of the dither output. The dither pattern internally generates an SDF.

Mask

Internally convert the SDF to a black and white mask using the ISO value and smooth rate.

SDF

Output the internal SDF for further post-processing.

Iso Offset

The crossing point to use for converting the SDF into a mask. You can use this to adjust the dot size without affecting level transitions.

Smooth

The width to smooth out the SDF conversion when crossing over the ISO offset.

Level Transition

How to adjust the dot scale when switching texture scales, which can help minimize the jump across levels.

See Ramp parameters for more information.

Shape Resolution

The shape input is resampled to this resolution. This speeds up filtering of the shape layer.

Inputs ¶

A UV layer that provides the surface locations as a texture map.

dotscale

A layer that scales the size of the dots.

shape

An optional SDF layer that provides a shape. If not wired in, the node uses a dot.

Outputs ¶

dither

The dithered output, either as a mask or an SDF.

The tiled UVs, each one of a different level.

level

The level each UV patch comes from.

scale

The relative fractional scale for the UV patch.

See also

Mono

Copernicus nodes

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Distort

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Dot Product

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Edge Detect by Contour

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Edge Detect by Normal

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Flow Block End

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Heat Distort

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Height to Normal

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Height to Shadow

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HeightField Visualize

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Hex Tile

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Histogram

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Hyperbolic Tile

Generates hyperbolic polygon tiles for texture patterns.
ID to Mask

Creates a mask from an ID layer based on filtering parameters.
ID to Mono

Converts an ID layer into a mono layer.
ID to RGB

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Invert

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Invoke Block

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Invoke Geometry

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Lattice Deform

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Layer Attribute Create

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Layer Attribute Delete

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Layer Properties

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Render Curves into a Layer.
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Layer to Points

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Lens Distort

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Mask from Curves

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Match UDIM

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Median

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Mirror

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Mono

Converts a layer to mono.
Mono to ID

Converts a mono layer into an ID layer.
Mono to RGB

Converts a mono layer into an RGB layer.
Mono to RGBA

Converts a mono layer into an RGBA layer.
Mono to SDF

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Null

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OCIO Transform

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ONNX Inference

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OpenCL

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Output

Collects the outputs of a subnetwork.
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Pixelate

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Polar to UV

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Position Map

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Position Sample

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Start of a Pyro simulation block.
Pyro Block End

End of a Pyro simulation block.
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Configures a Pyro simulation.
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Quantizes input data into discrete steps.
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Converts RGB layers to RGBA.
RGB to UV

Splits an RGB layer into UV and mono layers.
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Converts RGBA layers to RGB.
RGBA to UV

Splits an RGBA layer into two UV layers.
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Creates a mono layer with random values.
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Creates an RGB layer with random colors.
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Rasterizes curves onto a layer.
Rasterize Geometry

Rasterizes geometry onto a layer.
Rasterize Layer

Rasterizes a layer onto another layer’s camera.
Rasterize Setup

Prepares geometry for the Rasterize Geometry COP.
Rasterize Volume

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Reaction-Diffusion Block Begin

Start of a Reaction-Diffusion simulation block.
Reaction-Diffusion Block End

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Resample

Performs image scaling by changing the width, height, and pixel sizes.
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Modifies the values for a Mono SDF layer.
SDF Blend

Combines two Mono SDF layers.
SDF Shape

Builds a 2D signed distance field of a selected shape.
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Converts an SDF field to a Mono image layer.
SDF to RGB

Converts an SDF field to an RGB color layer.
SOP Import

Imports SOP geometry into Copernicus.
SOP Invoke

Invokes a compiled SOP block on the inputs.
SOP Invoke Graph

Invokes a geometry SOP graph on the inputs.
Scatter Shapes

Scatters input stamps across the image using randomization controls.
Scatter on Curves

Scatters input stamps along an input curve using randomization controls.
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Segment a layer into connected components.
Segment by Value

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Sequence Blend

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Slap Comp Import

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Slope Direction

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Solve Poisson Multigrid

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Space Transform

Transforms positions and UV values between spaces.
Stamp Points

Stamps layers from point positions.
Stash

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Statistics

Outputs the average, minimum and maximum values of the input layer
Statistics by ID

Compute statistics for each ID island.
Streak Blur

Streaks an image, adding a motion blur effect.
Subnetwork

Used to organize a collection of COPs into one node.
Surface Dither

Applies a halftone dithering pattern relative to UVs.
Swirl

Twists an image layer into a spiral shape.
Switch

Selects an input layer.
Switch If Wired

Selects an input based on what is connected.
Switch by Type

Selects an output layer by the type of the inputs.
Tile Pattern

Generates rectangular tiles for texture patterns.
Tone Map

Applies a filmic tone mapping curve to compress a high dynamic range input into a displayable range.
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Transforms a layer in 2D.
Transform 3D

Transforms a layer in 3D.
Triplanar

Generates a texture by projecting X, Y, and Z textures onto the position layer.
Triplanar Hex Tile

Seamless texturing and normal mapping of triplanar projections without visible repetitions.
Triplanar UV

Generates UVs in three orthogonal projections.
Two Way Switch If Wired

Selects between two inputs based on if you wire in another input.
UV Map

Generates a UV Map.
UV Map by ID

Creates a UV Map for each connected ID island.
UV Sample

Samples an input layer using a UV layer.
UV Transform

Transforms the values of a UV layer in 2d space.
UV to Polar

Converts Cartesian coordinate pixels to polar coordinate pixels.
UV to RGB

Joins a UV and mono layer into an RGB layer.
UV to RGBA

Joins two UV layers into an RGBA layer.
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VDB Position Map

Stores in each voxel that voxel’s position.
VDB Reshape

Rebuilds a VDB to match another VDB’s topology.
VDB Visualize

Creates multi-volume visualization.
VDB Visualize Slice

Extracts a slice from a VDB as Geometry for visualization.
VDB Visualize Tree

Builds a geometry visualizing the topology of a VDB.
VDB Visualize Velocity

Traces streamers through a velocity VDB.
VDB from Layer

Sets VDB values from the closest values in a layer.
Vector Transform

Transforms values of an RGB layer in 3d space.
Vector Transform 2D

Transforms the values of a UV layer in 2D space.
Vignette

Darkens the corners of an input layer.
Wipe

Performs a wipe transition between two images.
Worley Noise

Generates Worley noise.
Worley Noise 3D

Generates Worley noise from 3D locations.
Wrangle

Runs a VEX snippet to modify layer values.
Z Composite

Composites two layers by depth.