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以下是一个创建128x128 OpenSimplex2噪声数组的示例。

use fastnoise_lite::*;

// Create and configure the FastNoise object
let mut noise = FastNoiseLite::new();
noise.set_noise_type(Some(NoiseType::OpenSimplex2));

const WIDTH: usize = 128;
const HEIGHT: usize = 128;
let mut noise_data = [[0.; HEIGHT]; WIDTH];

// Sample noise pixels
for x in 0..WIDTH {
    for y in 0..HEIGHT {
        // Domain warp can optionally be employed to transform the coordinates before sampling:
        // let (x, y) = noise.domain_warp_2d(x as f32, y as f32);
        
        let negative_1_to_1 = noise.get_noise_2d(x as f32, y as f32);
        // You may want to remap the -1..1 range data to the 0..1 range:
        noise_data[x][y] = (neg_1_to_1 + 1.) / 2.;
        
        // (Uses of `as f32` above should become `as f64` if you're using FNL with the "f64" feature flag)
    }
}

// Do something with this data...