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Code Issues Releases Activity

Fix optimize noise generation

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violetc
2025-08-15 14:53:25 +08:00
parent 79d9ef74c2
commit 7179028625
1 changed files with 91 additions and 49 deletions
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136
leaves-server/minecraft-patches/features/0062-Optimize-noise-generation.patch
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@@ -6,7 +6,7 @@ Subject: [PATCH] Optimize noise generation
This patch is Powered by Gale(https://github.com/GaleMC/Gale)
diff --git a/net/minecraft/world/level/levelgen/synth/ImprovedNoise.java b/net/minecraft/world/level/levelgen/synth/ImprovedNoise.java
index fb11a2eea540d55e50eab59f9857ca5d99f556f8..47225646e98b5707af167cf8758f44c42c3cd38c 100644
index fb11a2eea540d55e50eab59f9857ca5d99f556f8..a54ad0b2731b83ee2e3de09972c62992fbea0ff6 100644
--- a/net/minecraft/world/level/levelgen/synth/ImprovedNoise.java
+++ b/net/minecraft/world/level/levelgen/synth/ImprovedNoise.java
@@ -11,6 +11,27 @@ public final class ImprovedNoise {
@@ -37,72 +37,99 @@ index fb11a2eea540d55e50eab59f9857ca5d99f556f8..47225646e98b5707af167cf8758f44c4
public ImprovedNoise(RandomSource random) {
this.xo = random.nextDouble() * 256.0;
this.yo = random.nextDouble() * 256.0;
@@ -41,9 +62,20 @@ public final class ImprovedNoise {
int floor = Mth.floor(d);
int floor1 = Mth.floor(d1);
int floor2 = Mth.floor(d2);
@@ -38,40 +59,78 @@ public final class ImprovedNoise {
double d = x + this.xo;
double d1 = y + this.yo;
double d2 = z + this.zo;
- int floor = Mth.floor(d);
- int floor1 = Mth.floor(d1);
- int floor2 = Mth.floor(d2);
- double d3 = d - floor;
- double d4 = d1 - floor1;
- double d5 = d2 - floor2;
- double d7;
- if (yScale != 0.0) {
- double d6;
- if (yMax >= 0.0 && yMax < d4) {
- d6 = yMax;
+ // Leaves start - optimize noise generation
+ double d3;
+ double d4;
+ double d5;
+ if (!org.leavesmc.leaves.LeavesConfig.performance.optimizeNoiseGeneration) {
+ d3 = d - (double)floor;
+ d4 = d1 - (double)floor1;
+ d5 = d2 - (double)floor2;
+ int floor = Mth.floor(d);
+ int floor1 = Mth.floor(d1);
+ int floor2 = Mth.floor(d2);
+ double d3 = d - floor;
+ double d4 = d1 - floor1;
+ double d5 = d2 - floor2;
+ double d7;
+ if (yScale != 0.0) {
+ double d6;
+ if (yMax >= 0.0 && yMax < d4) {
+ d6 = yMax;
+ } else {
+ d3 = d - floor;
+ d4 = d1 - floor1;
+ d5 = d2 - floor2;
+ d6 = d4;
+ }
+ // Leaves end - optimize noise generation
double d7;
if (yScale != 0.0) {
double d6;
@@ -53,12 +85,24 @@ public final class ImprovedNoise {
d6 = d4;
+
+ d7 = Mth.floor(d6 / yScale + 1.0E-7F) * yScale;
} else {
- d6 = d4;
+ d7 = 0.0;
}
- d7 = Mth.floor(d6 / yScale + 1.0E-7F) * yScale;
+ // Leaves start - optimize noise generation
+ if (!org.leavesmc.leaves.LeavesConfig.performance.optimizeNoiseGeneration) {
+ d7 = (double)Mth.floor(d6 / yScale + 1.0E-7F) * yScale;
+ } else {
+ d7 = Math.floor(d6 / yScale + (double)1.0E-7F) * yScale;
+ }
+ // Leaves end - optimize noise generation
+ return this.sampleAndLerp(floor, floor1, floor2, d3, d4 - d7, d5, d4);
} else {
d7 = 0.0;
}
- d7 = 0.0;
- }
+ double floor = Math.floor(d);
+ double floor1 = Math.floor(d1);
+ double floor2 = Math.floor(d2);
+ double d3 = d - floor;
+ double d4 = d1 - floor1;
+ double d5 = d2 - floor2;
+ double d7;
+ if (yScale != 0.0) {
+ double d6;
+ if (yMax >= 0.0 && yMax < d4) {
+ d6 = yMax;
+ } else {
+ d6 = d4;
+ }
+
+ d7 = Math.floor(d6 / yScale + 1.0E-7F) * yScale;
+ } else {
+ d7 = 0.0;
+ }
- return this.sampleAndLerp(floor, floor1, floor2, d3, d4 - d7, d5, d4);
+ // Leaves start - optimize noise generation
+ if (!org.leavesmc.leaves.LeavesConfig.performance.optimizeNoiseGeneration) {
+ return this.sampleAndLerp(floor, floor1, floor2, d3, d4 - d7, d5, d4);
+ } else {
+ return this.sampleAndLerp((int) floor, (int) floor1, (int) floor2, d3, d4 - d7, d5, d4);
+ }
+ // Leaves end - optimize noise generation
}
public double noiseWithDerivative(double x, double y, double z, double[] values) {
@@ -68,10 +112,19 @@ public final class ImprovedNoise {
int floor = Mth.floor(d);
int floor1 = Mth.floor(d1);
int floor2 = Mth.floor(d2);
double d = x + this.xo;
double d1 = y + this.yo;
double d2 = z + this.zo;
- int floor = Mth.floor(d);
- int floor1 = Mth.floor(d1);
- int floor2 = Mth.floor(d2);
- double d3 = d - floor;
- double d4 = d1 - floor1;
- double d5 = d2 - floor2;
- return this.sampleWithDerivative(floor, floor1, floor2, d3, d4, d5, values);
+ // Leaves start - optimize noise generation
+ if (!org.leavesmc.leaves.LeavesConfig.performance.optimizeNoiseGeneration) {
+ double d3 = d - (double)floor;
+ double d4 = d1 - (double)floor1;
+ double d5 = d2 - (double)floor2;
+ int floor = Mth.floor(d);
+ int floor1 = Mth.floor(d1);
+ int floor2 = Mth.floor(d2);
+ double d3 = d - floor;
+ double d4 = d1 - floor1;
+ double d5 = d2 - floor2;
+ return this.sampleWithDerivative(floor, floor1, floor2, d3, d4, d5, values);
+ } else {
+ double floor = Math.floor(d);
+ double floor1 = Math.floor(d1);
+ double floor2 = Math.floor(d2);
+ double d3 = d - floor;
+ double d4 = d1 - floor1;
+ double d5 = d2 - floor2;
@@ -112,7 +139,7 @@ index fb11a2eea540d55e50eab59f9857ca5d99f556f8..47225646e98b5707af167cf8758f44c4
}
private static double gradDot(int gradIndex, double xFactor, double yFactor, double zFactor) {
@@ -83,24 +136,90 @@ public final class ImprovedNoise {
@@ -83,24 +142,90 @@ public final class ImprovedNoise {
}
private double sampleAndLerp(int gridX, int gridY, int gridZ, double deltaX, double weirdDeltaY, double deltaZ, double deltaY) {
@@ -185,7 +212,7 @@ index fb11a2eea540d55e50eab59f9857ca5d99f556f8..47225646e98b5707af167cf8758f44c4
+ final int var26 = (this.p[var18] & 15) << 2;
+ final int var27 = (this.p[var19] & 15) << 2;
+ final double var60 = deltaX - 1.0;
+ final double var61 = deltaY - 1.0;
+ final double var61 = weirdDeltaY - 1.0;
+ final double var62 = deltaZ - 1.0;
+ final double var87 = FLAT_SIMPLEX_GRAD[(var20) | 0] * deltaX + FLAT_SIMPLEX_GRAD[(var20) | 1] * weirdDeltaY + FLAT_SIMPLEX_GRAD[(var20) | 2] * deltaZ;
+ final double var88 = FLAT_SIMPLEX_GRAD[(var21) | 0] * var60 + FLAT_SIMPLEX_GRAD[(var21) | 1] * weirdDeltaY + FLAT_SIMPLEX_GRAD[(var21) | 2] * deltaZ;
@@ -197,13 +224,13 @@ index fb11a2eea540d55e50eab59f9857ca5d99f556f8..47225646e98b5707af167cf8758f44c4
+ final double var94 = FLAT_SIMPLEX_GRAD[(var27) | 0] * var60 + FLAT_SIMPLEX_GRAD[(var27) | 1] * var61 + FLAT_SIMPLEX_GRAD[(var27) | 2] * var62;
+
+ final double var95 = deltaX * 6.0 - 15.0;
+ final double var96 = weirdDeltaY * 6.0 - 15.0;
+ final double var96 = deltaY * 6.0 - 15.0;
+ final double var97 = deltaZ * 6.0 - 15.0;
+ final double var98 = deltaX * var95 + 10.0;
+ final double var99 = weirdDeltaY * var96 + 10.0;
+ final double var99 = deltaY * var96 + 10.0;
+ final double var100 = deltaZ * var97 + 10.0;
+ final double var101 = deltaX * deltaX * deltaX * var98;
+ final double var102 = weirdDeltaY * weirdDeltaY * weirdDeltaY * var99;
+ final double var102 = deltaY * deltaY * deltaY * var99;
+ final double var103 = deltaZ * deltaZ * deltaZ * var100;
+
+ final double var113 = var87 + var101 * (var88 - var87);
@@ -222,7 +249,7 @@ index fb11a2eea540d55e50eab59f9857ca5d99f556f8..47225646e98b5707af167cf8758f44c4
private double sampleWithDerivative(int gridX, int gridY, int gridZ, double deltaX, double deltaY, double deltaZ, double[] noiseValues) {
diff --git a/net/minecraft/world/level/levelgen/synth/PerlinNoise.java b/net/minecraft/world/level/levelgen/synth/PerlinNoise.java
index da3c26fbad32d75d71f7e59c8c3341316a754756..82a2569139b088b30f9d8a13f50d556fefd78742 100644
index da3c26fbad32d75d71f7e59c8c3341316a754756..fde3efb7fa4fb9332ec0faafc6f9c4262a4f55c5 100644
--- a/net/minecraft/world/level/levelgen/synth/PerlinNoise.java
+++ b/net/minecraft/world/level/levelgen/synth/PerlinNoise.java
@@ -26,6 +26,10 @@ public class PerlinNoise {
@@ -260,7 +287,7 @@ index da3c26fbad32d75d71f7e59c8c3341316a754756..82a2569139b088b30f9d8a13f50d556f
+ double e = this.lowestFreqInputFactor;
+ double f = this.lowestFreqValueFactor;
+
+ for(int i = 0; i < this.octaveSamplersCount; ++i) {
+ for (int i = 0; i < this.octaveSamplersCount; ++i) {
+ ImprovedNoise perlinNoiseSampler = this.noiseLevels[i];
+ if (perlinNoiseSampler != null) {
+ @SuppressWarnings("deprecation")
@@ -279,3 +306,18 @@ index da3c26fbad32d75d71f7e59c8c3341316a754756..82a2569139b088b30f9d8a13f50d556f
}
@Deprecated
@@ -187,7 +218,13 @@ public class PerlinNoise {
}
public static double wrap(double value) {
- return value - Mth.lfloor(value / 3.3554432E7 + 0.5) * 3.3554432E7;
+ // Leaves start - optimize noise generation
+ if (!org.leavesmc.leaves.LeavesConfig.performance.optimizeNoiseGeneration) {
+ return value - Mth.lfloor(value / 3.3554432E7 + 0.5) * 3.3554432E7;
+ } else {
+ return value - Math.floor(value / 3.3554432E7 + 0.5) * 3.3554432E7;
+ }
+ // Leaves end - optimize noise generation
}
protected int firstOctave() {