Fragmented/README.md

Fragmented

Create image filters by writing shaders.

Supported Platforms

• Linux

You can find the latest releases here.

Usage

The repo includes examples. You can use them as a starting-point to write your own filters.
Just load an image using //!load, edit the shader code and hit F5 to see the changes.

Load TEXTURE using the //!load directive

//!load <filepath>

The image file will be read and available as the TEXTURE variable.

Load additional images

//!load+ <name> <filepath>
uniform sampler2D <name>;

Have a look at the mix.gdshader example:

shader_type canvas_item;

//!load ./swamp.jpg

//!load+ img2 ./overlay.jpg
uniform sampler2D img2: repeat_enable, filter_nearest;

void fragment() {
	COLOR = mix(COLOR, texture(img2, UV), .2);
}

Shaderlib

This repo comes with a (still small) shader library including pre-written functions and more. Have a look at the shaderlib folder.

Here is an example on how to use it (the hsv.gdshader example):

shader_type canvas_item;

#include "res://shaderlib/hsv.gdshaderinc"

//!load ./swamp.jpg

void fragment() {
	COLOR = hsv_offset(COLOR, 0.32, 0.2, 0.0);
}