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heyarne 2022-09-30 20:55:53 +02:00
commit f412f975ad
1 changed files with 10 additions and 8 deletions
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18
src/noise-studies-01.rs
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@ -1,7 +1,7 @@
use nannou::{ use nannou::{
prelude::*,
color::Alpha, color::Alpha,
noise::{Fbm, NoiseFn} noise::{Fbm, NoiseFn},
prelude::*,
}; };
const WIDTH: f32 = 512.0; const WIDTH: f32 = 512.0;
@ -26,9 +26,7 @@ fn model(app: &App) -> Model {
.build() .build()
.unwrap(); .unwrap();
Model { Model { noise: Fbm::new() }
noise: Fbm::new(),
}
} }
fn view(app: &App, model: &Model, frame: Frame) { fn view(app: &App, model: &Model, frame: Frame) {
@ -45,15 +43,19 @@ fn view(app: &App, model: &Model, frame: Frame) {
let line_color = Alpha { let line_color = Alpha {
color: LIGHTSALMON, color: LIGHTSALMON,
alpha: 0.3 alpha: 0.3,
}; };
for x in (block_size..(frame.rect().w() as usize - block_size)).step_by(block_size / 8) { for x in (block_size..(frame.rect().w() as usize - block_size)).step_by(block_size / 8) {
for y in (block_size..(frame.rect().h() as usize - block_size)).step_by(block_size / 8) { for y in (block_size..(frame.rect().h() as usize - block_size)).step_by(block_size / 8) {
let half = (block_size / 2) as f32; let half = (block_size / 2) as f32;
let v1 = vec2(x as f32, y as f32); let v1 = vec2(x as f32, y as f32);
let noise = model.noise.get([(v1.x * x_step) as f64, (v1.y * y_step) as f64]) as f32; let noise: f32 = model
let v2 = v1 + vec2(0.0, half * map_range(noise, -1.0, 1.0, 0.0, 2.0)).rotate(noise * TAU); .noise
.get([(v1.x * x_step) as f64, (v1.y * y_step) as f64])
as f32;
let v2 =
v1 + vec2(0.0, half * map_range(noise, -1.0, 1.0, 0.0, 2.0)).rotate(noise * TAU);
draw.line().weight(1.0).points(v1, v2).color(line_color); draw.line().weight(1.0).points(v1, v2).color(line_color);
} }
} }