mirror of
https://github.com/DigvijaysinhGohil/Godot-Shader-Lib.git
synced 2025-09-19 11:56:01 +08:00
10 lines
310 B
Plaintext
10 lines
310 B
Plaintext
vec2 swirl_uv(vec2 uv, vec2 center, float strength, vec2 offset){
|
|
vec2 _delta = uv - center;
|
|
float _angle = strength * max(pow(1. - length(_delta), 3), 0);
|
|
mat2 _rotation = mat2(
|
|
vec2(cos(_angle), -sin(_angle)),
|
|
vec2(sin(_angle), cos(_angle))
|
|
);
|
|
_delta = _rotation * _delta;
|
|
return _delta + center;
|
|
} |