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Fix noise

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This commit is contained in:
Daniel Mills 2020-08-17 15:52:50 -04:00
parent bb7e277f19
commit 6153b25bc7
4 changed files with 30 additions and 32 deletions
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6
src/main/java/com/volmit/iris/noise/CNG.java
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@ -31,6 +31,7 @@ public class CNG
private final double opacity; private final double opacity;
private NoiseInjector injector; private NoiseInjector injector;
private RNG rng; private RNG rng;
private boolean noscale;
private int oct; private int oct;
private double patch; private double patch;
private double up; private double up;
@ -124,6 +125,7 @@ public class CNG
public CNG(RNG random, NoiseType t, double opacity, int octaves) public CNG(RNG random, NoiseType t, double opacity, int octaves)
{ {
creates++; creates++;
noscale = t.equals(NoiseType.WHITE);
this.oct = octaves; this.oct = octaves;
this.rng = random; this.rng = random;
power = 1; power = 1;
@ -332,8 +334,8 @@ public class CNG
public double noise(double... dim) public double noise(double... dim)
{ {
double scale = this.bakedScale * this.scale; double scale = noscale ? 1 : this.bakedScale * this.scale;
double f = (fracture != null ? (fracture.noise(dim) - 0.5) * fscale : 0D); double f = noscale ? 0 : (fracture != null ? (fracture.noise(dim) - 0.5) * fscale : 0D);
double x = dim.length > 0 ? dim[0] + f : 0D; double x = dim.length > 0 ? dim[0] + f : 0D;
double y = dim.length > 1 ? dim[1] - f : 0D; double y = dim.length > 1 ? dim[1] - f : 0D;
double z = dim.length > 2 ? dim[2] - f : 0D; double z = dim.length > 2 ? dim[2] - f : 0D;

10
src/main/java/com/volmit/iris/noise/FastNoise.java
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@ -353,21 +353,21 @@ public class FastNoise
private static double DValCoord2D(int seed, long x, long y) private static double DValCoord2D(int seed, long x, long y)
{ {
int n = seed; long n = seed;
n ^= X_PRIME_L * x; n ^= X_PRIME_L * x;
n ^= Y_PRIME_L * y; n ^= Y_PRIME_L * y;
return ((n * n * n * 604930000L) / 21474836480000D) % 2D; return ((n * n * n * 60493L) / (double) Long.MAX_VALUE);
} }
private static double DValCoord3D(int seed, long x, long y, long z) private static double DValCoord3D(int seed, long x, long y, long z)
{ {
int n = seed; long n = seed;
n ^= X_PRIME_L * x; n ^= X_PRIME_L * x;
n ^= Y_PRIME_L * y; n ^= Y_PRIME_L * y;
n ^= Z_PRIME_L * z; n ^= Z_PRIME_L * z;
return ((n * n * n * 604930000L) / 21474836480000D) % 2D; return ((n * n * n * 60493L) / (double) Long.MAX_VALUE);
} }
private static float ValCoord3D(int seed, int x, int y, int z) private static float ValCoord3D(int seed, int x, int y, int z)
@ -628,7 +628,7 @@ public class FastNoise
{ {
long i = Double.doubleToRawLongBits(f); long i = Double.doubleToRawLongBits(f);
return i ^ (i >> 16); return i ^ (i >> 32);
} }
public float GetWhiteNoise(float x, float y, float z, float w) public float GetWhiteNoise(float x, float y, float z, float w)

11
src/main/java/com/volmit/iris/noise/WhiteNoise.java
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@ -9,21 +9,26 @@ public class WhiteNoise implements NoiseGenerator
n = new FastNoise((int) seed); n = new FastNoise((int) seed);
} }
private double f(double m)
{
return m;
}
@Override @Override
public double noise(double x) public double noise(double x)
{ {
return (n.GetWhiteNoise(Float.intBitsToFloat((int) Double.doubleToLongBits(x / 1000d)) % 1000000F, 0) / 2D) + 0.5D; return (n.DGetWhiteNoise(f(x), 0d) / 2D) + 0.5D;
} }
@Override @Override
public double noise(double x, double z) public double noise(double x, double z)
{ {
return (n.GetWhiteNoise(Float.intBitsToFloat((int) Double.doubleToLongBits(x / 1000d)) % 1000000F, Float.intBitsToFloat((int) Double.doubleToLongBits(z / 1000d)) % 1000000F) / 2D) + 0.5D; return (n.DGetWhiteNoise(f(x), f(z)) / 2D) + 0.5D;
} }
@Override @Override
public double noise(double x, double y, double z) public double noise(double x, double y, double z)
{ {
return (n.GetWhiteNoise(Float.intBitsToFloat((int) Double.doubleToLongBits(x / 1000d)) % 1000000F, Float.intBitsToFloat((int) Double.doubleToLongBits(y / 1000d)) % 1000000F, Float.intBitsToFloat((int) Double.doubleToLongBits(z / 1000d)) % 1000000F) / 2D) + 0.5D; return (n.DGetWhiteNoise(f(x), f(y), f(z)) / 2D) + 0.5D;
} }
} }

35
src/main/java/com/volmit/iris/object/NoiseStyle.java
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@ -9,19 +9,12 @@ import com.volmit.iris.util.RNG;
@Desc("Styles of noise") @Desc("Styles of noise")
@DontObfuscate @DontObfuscate
public enum NoiseStyle { public enum NoiseStyle
{
@Desc("White Noise is like static. Useful for block scattering but not terrain.") @Desc("White Noise is like static. Useful for block scattering but not terrain.")
@DontObfuscate @DontObfuscate
STATIC(rng -> new CNG(rng, NoiseType.WHITE, 1D, 1)), STATIC(rng -> new CNG(rng, NoiseType.WHITE, 1D, 1)),
@Desc("White Noise is like static. Useful for block scattering but not terrain. 4 Times finer.")
@DontObfuscate
STATIC_FINE(rng -> new CNG(rng, NoiseType.WHITE, 1D, 1).scale(4)),
@Desc("White Noise is like static. Useful for block scattering but not terrain. 16 Times finer.")
@DontObfuscate
STATIC_ULTRA_FINE(rng -> new CNG(rng, NoiseType.WHITE, 1D, 1).scale(16)),
@Desc("Wispy Perlin-looking simplex noise. The 'iris' style noise.") @Desc("Wispy Perlin-looking simplex noise. The 'iris' style noise.")
@DontObfuscate @DontObfuscate
IRIS(rng -> CNG.signature(rng).scale(1)), IRIS(rng -> CNG.signature(rng).scale(1)),
@ -44,9 +37,7 @@ public enum NoiseStyle {
@Desc("Very Detailed smoke using simplex fractured with fractal billow simplex at high octaves.") @Desc("Very Detailed smoke using simplex fractured with fractal billow simplex at high octaves.")
@DontObfuscate @DontObfuscate
FRACTAL_SMOKE(rng -> new CNG(rng, 1D, 1) FRACTAL_SMOKE(rng -> new CNG(rng, 1D, 1).fractureWith(new CNG(rng.nextParallelRNG(1), NoiseType.FRACTAL_BILLOW_SIMPLEX, 1D, 8).scale(0.2), 1000).scale(0.34)),
.fractureWith(new CNG(rng.nextParallelRNG(1), NoiseType.FRACTAL_BILLOW_SIMPLEX, 1D, 8).scale(0.2), 1000)
.scale(0.34)),
@Desc("Thinner Veins.") @Desc("Thinner Veins.")
@DontObfuscate @DontObfuscate
@ -54,19 +45,15 @@ public enum NoiseStyle {
@Desc("Cells of simplex noise") @Desc("Cells of simplex noise")
@DontObfuscate @DontObfuscate
SIMPLEX_CELLS(rng -> new CNG(rng.nextParallelRNG(1), NoiseType.SIMPLEX, 1D, 1).scale(1) SIMPLEX_CELLS(rng -> new CNG(rng.nextParallelRNG(1), NoiseType.SIMPLEX, 1D, 1).scale(1).fractureWith(new CNG(rng.nextParallelRNG(8), NoiseType.CELLULAR, 1D, 1).scale(1), 200)),
.fractureWith(new CNG(rng.nextParallelRNG(8), NoiseType.CELLULAR, 1D, 1).scale(1), 200)),
@Desc("Veins of simplex noise") @Desc("Veins of simplex noise")
@DontObfuscate @DontObfuscate
SIMPLEX_VASCULAR(rng -> new CNG(rng.nextParallelRNG(1), NoiseType.SIMPLEX, 1D, 1).scale(1) SIMPLEX_VASCULAR(rng -> new CNG(rng.nextParallelRNG(1), NoiseType.SIMPLEX, 1D, 1).scale(1).fractureWith(new CNG(rng.nextParallelRNG(8), NoiseType.VASCULAR, 1D, 1).scale(1), 200)),
.fractureWith(new CNG(rng.nextParallelRNG(8), NoiseType.VASCULAR, 1D, 1).scale(1), 200)),
@Desc("Very Detailed fluid using simplex fractured with fractal billow simplex at high octaves.") @Desc("Very Detailed fluid using simplex fractured with fractal billow simplex at high octaves.")
@DontObfuscate @DontObfuscate
FRACTAL_WATER(rng -> new CNG(rng, 1D, 1) FRACTAL_WATER(rng -> new CNG(rng, 1D, 1).fractureWith(new CNG(rng.nextParallelRNG(1), NoiseType.FRACTAL_FBM_SIMPLEX, 1D, 9).scale(0.03), 9900).scale(1.14)),
.fractureWith(new CNG(rng.nextParallelRNG(1), NoiseType.FRACTAL_FBM_SIMPLEX, 1D, 9).scale(0.03), 9900)
.scale(1.14)),
@Desc("Perlin. Like simplex but more natural") @Desc("Perlin. Like simplex but more natural")
@DontObfuscate @DontObfuscate
@ -413,17 +400,21 @@ public enum NoiseStyle {
VASCULAR_IRIS_HALF(rng -> CNG.signatureHalf(rng, NoiseType.VASCULAR)), VASCULAR_IRIS_HALF(rng -> CNG.signatureHalf(rng, NoiseType.VASCULAR)),
; ;
private CNGFactory f; private CNGFactory f;
private NoiseStyle(CNGFactory f) { private NoiseStyle(CNGFactory f)
{
this.f = f; this.f = f;
} }
public CNG create(RNG seed) { public CNG create(RNG seed)
{
return f.create(seed).bake(); return f.create(seed).bake();
} }
public IrisGeneratorStyle style() { public IrisGeneratorStyle style()
{
return new IrisGeneratorStyle(this); return new IrisGeneratorStyle(this);
} }
} }