1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
uniform float progress;
uniform int angle;
uniform sampler2D u_texture1;
uniform sampler2D u_texture2;
vec4 getFromColor (vec2 uv) {
return GskTexture(u_texture1, uv);
}
vec4 getToColor (vec2 uv) {
return GskTexture(u_texture2, uv);
}
// Source: https://gl-transitions.com/editor/Directional
// License: MIT
// Author: Gaëtan Renaudeau
vec4 transition (vec2 uv) {
float r = radians(float(angle));
vec2 direction = vec2(cos(r), sin(r));
vec2 p = uv + progress * sign(direction);
vec2 f = fract(p);
return mix(
getToColor(f),
getFromColor(f),
step(0.0, p.y) * step(p.y, 1.0) * step(0.0, p.x) * step(p.x, 1.0)
);
}
void mainImage(out vec4 fragColor, in vec2 fragCoord, in vec2 resolution, in vec2 uv)
{
fragColor = transition(uv);
}
|
