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Code Issues Releases Wiki Activity

noise as alpha

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This commit is contained in:
Justin Lin
2020-03-09 08:58:30 +08:00
parent ee125eafd6
commit 56d169e677
1 changed files with 9 additions and 10 deletions
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19
src/experimental/demo/pnoise3_demo.scad
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@@ -1,6 +1,6 @@
use <util/rand.scad>;
use <experimental/pnoise2.scad>;
use <experimental/pnoise3.scad>;
use <experimental/pnoise2s.scad>;
use <experimental/pnoise3s.scad>;
module demo1() {
for(z = [0:.2:5]) {
@@ -9,13 +9,12 @@ module demo1() {
for(x = [0:.2:5])
[x, y, z]
];
noise = pnoise3(points, 3);
noise = pnoise3s(points, 3);
for(i = [0:len(points) - 1]) {
if(noise[i] > 0) {
color([noise[i], .75, .75])
translate(points[i])
cube(.2);
}
alpha = abs(noise[i] + .5);
color([.75, .75, .75, alpha < 0 ? 0 : alpha > 1 ? 1 : alpha])
translate(points[i])
cube(.2);
}
}
}
@@ -33,7 +32,7 @@ module demo2() {
points_with_h = [
for(ri = [0:len(points) - 1])
let(ns = pnoise2(points[ri], seed))
let(ns = pnoise2s(points[ri], seed))
[
for(ci = [0:len(ns) - 1])
[points[ri][ci][0], points[ri][ci][1], ns[ci] + 1]
@@ -47,7 +46,7 @@ module demo2() {
pts = [
for(z = [0:.2:p[2] * h_scale]) [p[0], p[1], z]
];
noise = pnoise3(pts, seed);
noise = pnoise3s(pts, seed);
for(j = [0:len(pts) - 1]) {
if(noise[j] > 0) {
color(