mirror of https://github.com/ZDoom/gzdoom-gles.git
19 lines
430 B
GLSL
19 lines
430 B
GLSL
uniform float timer;
|
|
|
|
vec4 ProcessTexel()
|
|
{
|
|
vec2 texCoord = vTexCoord.st;
|
|
|
|
const float pi = 3.14159265358979323846;
|
|
vec2 offset = vec2(0.0,0.0);
|
|
|
|
float siny = sin(pi * 2.0 * (texCoord.y * 2.2 + timer * 0.75)) * 0.03;
|
|
offset.y = siny + sin(pi * 2.0 * (texCoord.x * 0.75 + timer * 0.75)) * 0.03;
|
|
offset.x = siny + sin(pi * 2.0 * (texCoord.x * 1.1 + timer * 0.45)) * 0.02;
|
|
|
|
texCoord += offset;
|
|
|
|
return getTexel(texCoord);
|
|
}
|
|
|