Create image filters by writing shaders.
- Linux
You can find the latest releases here.
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 <filepath>
The image file will be read and available as the TEXTURE
variable.
//!load+ <name> <filepath>
uniform sampler2D <name>;
Have a look at the place_texture.gdshader
example.
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:
shader_type canvas_item;
#include "res://shaderlib/hsv.gdshaderinc"
//!load ./swamp.jpg
void fragment() {
COLOR = hsv_offset(COLOR, 0.32, 0.2, 0.0);
}