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slight open simplex 2s op\pt

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This commit is contained in:
Zoe Gidiere
2024-09-23 19:48:22 -06:00
parent 5b35eb041b
commit 5f340f8ffd
1 changed files with 10 additions and 14 deletions
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24
common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/noise/simplex/OpenSimplex2Sampler.java
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@@ -37,41 +37,37 @@ public class OpenSimplex2Sampler extends SimplexStyleSampler {
i *= PRIME_X;
j *= PRIME_Y;
double n0, n1, n2;
double value = 0;
double a = 0.5 - x0 * x0 - y0 * y0;
if(a <= 0) n0 = 0;
else {
n0 = (a * a) * (a * a) * gradCoord(seed, i, j, x0, y0);
if(a > 0) {
value = (a * a) * (a * a) * gradCoord(seed, i, j, x0, y0);
}
double c = 2 * (1 - 2 * G2) * (1 / G2 - 2) * t + ((-2 * (1 - 2 * G2) * (1 - 2 * G2)) + a);
if(c <= 0) n2 = 0;
else {
if(c > 0) {
double x2 = x0 + (2 * G2 - 1);
double y2 = y0 + (2 * G2 - 1);
n2 = (c * c) * (c * c) * gradCoord(seed, i + PRIME_X, j + PRIME_Y, x2, y2);
value += (c * c) * (c * c) * gradCoord(seed, i + PRIME_X, j + PRIME_Y, x2, y2);
}
if(y0 > x0) {
double x1 = x0 + G2;
double y1 = y0 + (G2 - 1);
double b = 0.5 - x1 * x1 - y1 * y1;
if(b <= 0) n1 = 0;
else {
n1 = (b * b) * (b * b) * gradCoord(seed, i, j + PRIME_Y, x1, y1);
if(b > 0) {
value += (b * b) * (b * b) * gradCoord(seed, i, j + PRIME_Y, x1, y1);
}
} else {
double x1 = x0 + (G2 - 1);
double y1 = y0 + G2;
double b = 0.5 - x1 * x1 - y1 * y1;
if(b <= 0) n1 = 0;
else {
n1 = (b * b) * (b * b) * gradCoord(seed, i + PRIME_X, j, x1, y1);
if(b <= 0) {
value += (b * b) * (b * b) * gradCoord(seed, i + PRIME_X, j, x1, y1);
}
}
return (n0 + n1 + n2) * 99.83685446303647f;
return value * 99.83685446303647f;
}
@Override