Voronoi Texture Node

Merknad

This node is ported from shader nodes. The manual and images are referencing the shader version of the node. This node accepts field inputs and outputs. When not connected the Vector input has an implicit position attribute value.

Voronoi Texture Node.

The Voronoi Texture node evaluates a Worley Noise at the input texture coordinates.

Inputs

The inputs are dynamic, they become available if needed depending on the node properties.

Vector

Texture coordinate to evaluate the noise at; defaults to Generated texture coordinates if the socket is left unconnected.

W

Texture coordinate to evaluate the noise at.

Scale

Scale of the noise.

Detail

Number of noise octaves. The fractional part of the input is multiplied by the magnitude of the highest octave. Higher number of octaves corresponds to a higher evaluation time.

Roughness

Blend between a smoother noise pattern, and rougher with sharper peaks.

Lacunarity

The difference between the scale of each two consecutive octaves. Larger values corresponds to larger scale for higher octaves.

Smoothness

The smoothness of the noise.

../../../_images/render_shader-nodes_textures_voronoi_smoothness-distance-zero.png

Smoothness: 0.0.

../../../_images/render_shader-nodes_textures_voronoi_smoothness-distance-quarter.png

Smoothness: 0.25.

../../../_images/render_shader-nodes_textures_voronoi_smoothness-distance-half.png

Smoothness: 0.5.

../../../_images/render_shader-nodes_textures_voronoi_smoothness-distance-one.png

Smoothness: 1.0.

../../../_images/render_shader-nodes_textures_voronoi_smoothness-color-zero.png

Smoothness: 0.0.

../../../_images/render_shader-nodes_textures_voronoi_smoothness-color-quarter.png

Smoothness: 0.25.

../../../_images/render_shader-nodes_textures_voronoi_smoothness-color-half.png

Smoothness: 0.5.

../../../_images/render_shader-nodes_textures_voronoi_smoothness-color-one.png

Smoothness: 1.0.

Exponent

Exponent of the Minkowski distance metric.

../../../_images/render_shader-nodes_textures_voronoi_minkowski-half.png

Exponent: 0.5.

../../../_images/render_shader-nodes_textures_voronoi_minkowski-one.png

Exponent: 1.0.

../../../_images/render_shader-nodes_textures_voronoi_minkowski-two.png

Exponent: 2.0.

../../../_images/render_shader-nodes_textures_voronoi_minkowski-32.png

Exponent: 32.0.

Randomness

The randomness of the noise.

../../../_images/render_shader-nodes_textures_voronoi_randomness-one.png

Randomness: 1.0.

../../../_images/render_shader-nodes_textures_voronoi_randomness-half.png

Randomness: 0.5.

../../../_images/render_shader-nodes_textures_voronoi_randomness-quarter.png

Randomness: 0.25.

../../../_images/render_shader-nodes_textures_voronoi_randomness-zero.png

Randomness: 0.0.

Properties

Dimensions

The dimensions of the space to evaluate the noise in.

1D:

Evaluate the noise in 1D space at the input W.

2D:

Evaluate the noise in 2D space at the input Vector. The Z component is ignored.

3D:

Evaluate the noise in 3D space at the input Vector.

4D:

Evaluate the noise in 4D space at the input Vector and the input W as the fourth dimension.

Higher dimensions corresponds to higher render time, so lower dimensions should be used unless higher dimensions are necessary.

Feature

The Voronoi feature that the node will compute.

F1:

The distance to the closest feature point as well as its position and color.

../../../_images/render_shader-nodes_textures_voronoi_smoothness-distance-zero.png

Distance.

../../../_images/render_shader-nodes_textures_voronoi_smoothness-color-zero.png

Color.

../../../_images/render_shader-nodes_textures_voronoi_f1-position.png

Position.

F2:

The distance to the second closest feature point as well as its position and color.

../../../_images/render_shader-nodes_textures_voronoi_f2-distance.png

Distance.

../../../_images/render_shader-nodes_textures_voronoi_f2-color.png

Color.

../../../_images/render_shader-nodes_textures_voronoi_f2-position.png

Position.

Smooth F1:

A smooth version of F1.

../../../_images/render_shader-nodes_textures_voronoi_smoothness-distance-one.png

Distance.

../../../_images/render_shader-nodes_textures_voronoi_smoothness-color-one.png

Color.

../../../_images/render_shader-nodes_textures_voronoi_smooth-f1-position.png

Position.

Distance to Edge:

The distance to the edges of the Voronoi cells.

../../../_images/render_shader-nodes_textures_voronoi_distance-to-edge.png

Distance.

../../../_images/render_shader-nodes_textures_voronoi_distance-to-edge-less-than.png

Distance smaller than 0.05.

N-Sphere Radius:

The radius of the n-sphere inscribed in the Voronoi cells. In other words, it is half the distance between the closest feature point and the feature point closest to it.

../../../_images/render_shader-nodes_textures_voronoi_n-sphere-radius.png

The n-sphere radius can be used to create tightly packed n-spheres.

../../../_images/render_shader-nodes_textures_voronoi_n-sphere-radius-nodetree.png

Node tree for the shader to the left.

Distance Metric

The distance metric used to compute the texture.

Euclidean:

Use the Euclidean distance metric.

Manhattan:

Use the Manhattan distance metric.

Chebychev:

Use the Chebychev distance metric.

Minkowski:

Use the Minkowski distance metric. The Minkowski distance is a generalization of the aforementioned metrics with an Exponent as a parameter. Minkowski with an exponent of one is equivalent to the Manhattan distance metric. Minkowski with an exponent of two is equivalent to the Euclidean distance metric. Minkowski with an infinite exponent is equivalent to the Chebychev distance metric.

../../../_images/render_shader-nodes_textures_voronoi_minkowski-half.png

Minkowski Exponent: 0.5 (Minkowski 1/2).

../../../_images/render_shader-nodes_textures_voronoi_minkowski-one.png

Minkowski Exponent: 1.0 (Manhattan).

../../../_images/render_shader-nodes_textures_voronoi_minkowski-two.png

Minkowski Exponent: 2.0 (Euclidean).

../../../_images/render_shader-nodes_textures_voronoi_minkowski-32.png

Minkowski Exponent: 32.0 (approximation of Chebychev).

Normalize

If enabled, ensures that the output values stay in the range 0.0 to 1.0. In rare cases, the output value may be outside that range when Feature is F2.

Outputs

Distance

Distance.

Color

Cell color. The color is arbitrary.

Position

Position of feature point.

W

Position of feature point.

Radius

N-Sphere radius.

Notes

In some configurations of the node, especially for low values of Randomness, rendering artifacts may occur. This happens due to the same reasons described in the Notes section in the White Noise Texture page and can be fixed in a similar manner as described there.

Examples

../../../_images/render_shader-nodes_textures_voronoi_example-beveled-cells.png

The difference between F1 and Smooth F1 can be used to create beveled Voronoi cells.

../../../_images/render_shader-nodes_textures_voronoi_example-hammered-metal.jpg

Creating a hammered metal shader using the Voronoi Texture node.