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Implemented terrain texturing

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This commit is contained in:
Lorenzo Torres 2025-08-14 22:53:53 +02:00
parent 1475fd2101
commit 9fdd47ea6e
19 changed files with 1977 additions and 87 deletions
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9
src/math/PerlinNoise.zig
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@ -62,17 +62,16 @@ fn noise(self: Self, x: f64, y: f64) f64 {
}
pub fn fbm(self: Self, x: f64, y: f64, octaves: u32, lacunarity: f64, gain: f64) f64 {
var total: f64 = 0.0;
var amplitude: f64 = 1.0;
var frequency: f64 = 1.0;
var maxAmplitude: f64 = 1.0;
var maxAmplitude: f64 = 0.0;
for(0..octaves) |_| {
total += self.noise(x * frequency, y * frequency) * amplitude;
maxAmplitude += amplitude;
const value = (self.noise(x * frequency, y * frequency) * 2) - 1;
maxAmplitude += amplitude * value;
amplitude *= gain;
frequency *= lacunarity;
}
return total / maxAmplitude;
return maxAmplitude;
}