mirror of
https://github.com/Ttanasart-pt/Pixel-Composer.git
synced 2024-09-21 12:52:43 +02:00
25 lines
516 B
GLSL
25 lines
516 B
GLSL
//
|
|
// Simple passthrough fragment shader
|
|
//
|
|
varying vec2 v_vTexcoord;
|
|
varying vec4 v_vColour;
|
|
|
|
uniform vec2 position;
|
|
uniform vec2 scale;
|
|
uniform float seed;
|
|
uniform float shift;
|
|
|
|
float random (in vec2 st) {
|
|
return fract(sin(dot(st.xy, vec2(12.9898 * seed, 78.233))) * 43758.5453123);
|
|
}
|
|
|
|
void main() {
|
|
vec2 st = v_vTexcoord + position;
|
|
vec2 pos = vec2(st * scale);
|
|
pos.x += random(vec2(0., floor(pos.y))) * shift;
|
|
vec2 i = floor(pos);
|
|
float n = random(i);
|
|
|
|
gl_FragColor = vec4(vec3(n), 1.0);
|
|
}
|