Relintai/material-maker
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Merge branch 'master' of https://github.com/RodZill4/godot-procedural-textures

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This is an addon for the Godot game engine that can be used to create texture procedurally.
This is atool based on the Godot game engine that can be used to create textures procedurally. It can also be used as a Godot addon (but there's no good reason for not using it as a standalone tool).
Its user interface is based on Godot's GraphEditor: textures are described as interconnected texture generators and operators.
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### Image
This operator reads a bitmap from disk
This node reads a bitmap from disk
### Pattern
This generator creates a greyscale image by mixing an horizontal and a vertical pattern.
Patterns can either be based on a sine, triangle or square waveform (i.e. the color as function of the x or y coordinate).
The frequency (number of waves per unit) be configure for both axes.
Patterns can either be based on a sine, triangle, square, saw or "constant" waveform (i.e. the color as function of the x or y coordinate).
The frequency (number of waves per unit) can be configure for both axes.
Mix functions can also be configured.
![Sine pattern](doc/sine.png)
![Pattern](doc/pattern.png)
### Bricks
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* The third output shows a different color for each cell.
![Voronoi Noise](doc/voronoi.png)
## Filters
### Colorize
This filter accepts a greyscale image as input and is configured using a gradient. The output image is obtained by applying the gradient to the greyscale image (the example below shows a colorized perlin noise).
![Colorize](doc/colorize.png)
### Blend
This filter accepts 2 inputs and an optional mask and blends the 2 images according to the selected blend algorithm.
### Blur
This node applies a Gaussian blur to the input image.
### Combine
This node accepts 3 greyscale images as inputs (one for each R, G and B channels) and combines them into a single image. It is useful to create textures that combine distinct features (for example Metallic and Roughness for Godot's Spatial materials).
### Emboss
This node creates a lighting effect from a greyscale image, with a configurable light direction.
### Normal map
This node creates a normal map from a greyscale height map.
### Transform
This node applies a transform (translation, rotation, and scale) to its input image. Whether the input image is clamped or repeated when downsizing is configurable.
This can be combined with the pattern node to create a great variety of shapes.
### Warp
This node deforms an input image according to the gradient of another image (generally perlin noise).