mirror of
https://github.com/Ttanasart-pt/Pixel-Composer.git
synced 2024-11-14 14:33:53 +01:00
30 lines
650 B
GLSL
30 lines
650 B
GLSL
// Based on FabriceNeyret2 - plop 2 shader
|
|
|
|
varying vec2 v_vTexcoord;
|
|
varying vec4 v_vColour;
|
|
|
|
uniform vec2 position;
|
|
uniform vec2 scale;
|
|
|
|
uniform int iteration;
|
|
uniform float stretch;
|
|
uniform float amplitude;
|
|
|
|
uniform int mode;
|
|
|
|
void main() {
|
|
vec2 pos = v_vTexcoord * scale + position;
|
|
vec4 col = vec4(0., 0., 0., 1.);
|
|
|
|
for (int i = 0; i < iteration; i++) {
|
|
pos += cos( pos.yx * 3. + vec2(0.0, stretch)) / 3.;
|
|
pos += sin( pos.yx + vec2(stretch, 0.0)) / 2.;
|
|
pos *= amplitude;
|
|
}
|
|
|
|
if(mode == 0) col += length(mod(pos, 2.) - 1.);
|
|
else col.xy += abs(mod(pos, 2.) - 1.);
|
|
|
|
gl_FragColor = col;
|
|
}
|