New permutation (much improved randomness)
parent
73ef55129f
commit
c445960cda
|
@ -20,9 +20,9 @@ vec4 mod7(vec4 x) {
|
||||||
return x - floor(x * (1.0 / 7.0)) * 7.0;
|
return x - floor(x * (1.0 / 7.0)) * 7.0;
|
||||||
}
|
}
|
||||||
|
|
||||||
// Permutation polynomial: (34x^2 + x) mod 289
|
// Permutation polynomial: (34x^2 + 6x) mod 289
|
||||||
vec4 permute(vec4 x) {
|
vec4 permute(vec4 x) {
|
||||||
return mod289((34.0 * x + 1.0) * x);
|
return mod289((34.0 * x + 6.0) * x);
|
||||||
}
|
}
|
||||||
|
|
||||||
// Cellular noise, returning F1 and F2 in a vec2.
|
// Cellular noise, returning F1 and F2 in a vec2.
|
||||||
|
|
Loading…
Reference in New Issue