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29 lines
689 B
Markdown
29 lines
689 B
Markdown
# nz_perlin2s
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Returns 2D [Perlin noise](https://en.wikipedia.org/wiki/Perlin_noise) values at (x, y) coordinates.
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**Since:** 2.3
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## Parameters
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- `points` : A list of `[x, y]` coordinates.
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- `seed` : The random seed. If it's ignored, a randomized value will be used.
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## Examples
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use <util/rand.scad>
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use <noise/nz_perlin2s.scad>
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seed = rand(0, 255);
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for(y = [0:.1:10]) {
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points = [for(x = [0:.1:10]) [x, y]];
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noises = nz_perlin2s(points, seed);
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for(i = [0:len(points) - 1]) {
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translate(points[i])
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linear_extrude(noises[i] + 1)
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square(.1);
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}
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}
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