https://github.com/doubleailes/guerilla-nodes

Collection of guerilla shaders and other utility nodes
https://github.com/doubleailes/guerilla-nodes

Last synced: 3 months ago
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Collection of guerilla shaders and other utility nodes

• Host: GitHub
• URL: https://github.com/doubleailes/guerilla-nodes
• Owner: doubleailes
• Created: 2019-12-09T07:37:34.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2018-11-04T15:35:16.000Z (over 6 years ago)
• Last Synced: 2025-01-06T03:26:02.572Z (4 months ago)
• Size: 1.34 MB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# guerilla-nodes

Collection of shaders and other utility nodes for the rendering engine [Guerilla Render](http://guerillarender.com/)

## Attributes

Nodes that can be used in Guerilla shaders.

### Voronoï nodes

This section concern all the nodes that generates Voronoï diagrams.

#### Voronoi2D

##### Description

This node allows generates two-dimensional Voronoï diagram.

##### Inputs

- Input (enum): specify which input coordinates to use.

When set to 'st', it will use first set of texture coordinates.

When set to to Coords it will use the input Coords value.

- Coords (point): coordinates to use when the input is set to 'Coords'.

- Scale (vector): Scales the input coordinates. 

- Jitter (float): Multiplication factor of how much the cell position is

jittered for the original cell center.

##### Outputs

- CellCoords (vector): returns the coordinates of the shading point relative to the cell center.

- CellPosition (point): returns the position of the cell center in which the shading point falls into.

- CellIndex (vector); returns the index of the cell in which the shading point falls into.

![Voronoi2D-CellCoords](images/voronoi2D-CellCoords.png)

![Voronoi2D-CellPosition](images/voronoi2D-CellPosition.png)

![Voronoi2D-CellIndex](images/voronoi2D-CellIndex.png)

##### Notes

You can modify the `modifyPosition` function in the Voronoï SL Node if you need

more control on how the cell center is displaced from its original position.

By default, the function jitters the cell position by a random vector.

### Random number generator nodes

#### Random

##### Description

This node generates a uniformly distributed random value for the given input

vector.

Even if they look similar, Color and Vector mode does not return the same

output. Vector output is a normalized vector while Color is not. Make sure to

choose the correct mode.

##### Inputs

- Mode: type of value to generate (Float, Vector or Color)

- v: input vector for which to generate the random value

##### Output