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add pnoise3_demo
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src/experimental/demo/pnoise3_demo.scad
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68
src/experimental/demo/pnoise3_demo.scad
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use <util/rand.scad>;
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use <function_grapher.scad>;
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use <experimental/pnoise2.scad>;
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use <experimental/pnoise3.scad>;
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module demo1() {
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points = [
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for(z = [0:.2:3])
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for(y = [0:.2:5])
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for(x = [0:.2:5])
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[x, y, z]
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];
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noise = pnoise3(points);
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for(i = [0:len(points) - 1]) {
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if(noise[i] > 0) {
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translate(points[i])
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cube(.2);
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}
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}
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}
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module demo2() {
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points = [
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for(y = [0:.2:10])
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[
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for(x = [0:.2:10])
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[x, y]
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]
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];
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seed = rand(0, 256);
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points_with_h = [
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for(ri = [0:len(points) - 1])
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let(ns = pnoise2(points[ri], seed))
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[
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for(ci = [0:len(ns) - 1])
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[points[ri][ci][0], points[ri][ci][1], ns[ci] + 1]
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]
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];
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h_scale = 1.5;
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for(row = points_with_h) {
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for(i = [0:len(row) - 1]) {
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p = row[i];
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pts = [
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for(z = [0:.2:p[2] * h_scale]) [p[0], p[1], z]
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];
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noise = pnoise3(pts, seed);
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for(j = [0:len(pts) - 1]) {
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if(noise[j] > 0) {
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translate(pts[j])
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cube(.2);
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}
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}
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}
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}
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linear_extrude(.2)
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square(10);
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}
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demo1();
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translate([8, 0])
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demo2();
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