mirror of
https://github.com/CrispyPin/julia-fractal-renderer.git
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init
This commit is contained in:
commit
f02250a507
5 changed files with 234 additions and 0 deletions
2
.gitignore
vendored
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2
.gitignore
vendored
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@ -0,0 +1,2 @@
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/target
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*.png
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153
Cargo.lock
generated
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153
Cargo.lock
generated
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@ -0,0 +1,153 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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version = 3
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[[package]]
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name = "adler"
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version = "1.0.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
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[[package]]
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name = "autocfg"
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version = "1.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
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[[package]]
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name = "bitflags"
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version = "1.3.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
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[[package]]
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name = "bytemuck"
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version = "1.13.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "17febce684fd15d89027105661fec94afb475cb995fbc59d2865198446ba2eea"
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[[package]]
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name = "byteorder"
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version = "1.4.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
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[[package]]
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name = "cfg-if"
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version = "1.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
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[[package]]
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name = "color_quant"
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version = "1.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "3d7b894f5411737b7867f4827955924d7c254fc9f4d91a6aad6b097804b1018b"
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[[package]]
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name = "crc32fast"
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version = "1.3.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b540bd8bc810d3885c6ea91e2018302f68baba2129ab3e88f32389ee9370880d"
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dependencies = [
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"cfg-if",
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]
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[[package]]
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name = "fdeflate"
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version = "0.3.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d329bdeac514ee06249dabc27877490f17f5d371ec693360768b838e19f3ae10"
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dependencies = [
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"simd-adler32",
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]
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[[package]]
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name = "flate2"
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version = "1.0.26"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "3b9429470923de8e8cbd4d2dc513535400b4b3fef0319fb5c4e1f520a7bef743"
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dependencies = [
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"crc32fast",
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"miniz_oxide",
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]
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[[package]]
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name = "image"
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version = "0.24.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "527909aa81e20ac3a44803521443a765550f09b5130c2c2fa1ea59c2f8f50a3a"
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dependencies = [
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"bytemuck",
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"byteorder",
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"color_quant",
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"num-rational",
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"num-traits",
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"png",
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]
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[[package]]
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name = "julia-set"
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version = "0.1.0"
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dependencies = [
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"image",
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]
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[[package]]
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name = "miniz_oxide"
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version = "0.7.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e7810e0be55b428ada41041c41f32c9f1a42817901b4ccf45fa3d4b6561e74c7"
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dependencies = [
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"adler",
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"simd-adler32",
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]
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[[package]]
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name = "num-integer"
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version = "0.1.45"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "225d3389fb3509a24c93f5c29eb6bde2586b98d9f016636dff58d7c6f7569cd9"
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dependencies = [
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"autocfg",
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"num-traits",
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]
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[[package]]
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name = "num-rational"
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version = "0.4.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "0638a1c9d0a3c0914158145bc76cff373a75a627e6ecbfb71cbe6f453a5a19b0"
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dependencies = [
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"autocfg",
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"num-integer",
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"num-traits",
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]
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[[package]]
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name = "num-traits"
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version = "0.2.15"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "578ede34cf02f8924ab9447f50c28075b4d3e5b269972345e7e0372b38c6cdcd"
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dependencies = [
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"autocfg",
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]
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[[package]]
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name = "png"
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version = "0.17.9"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "59871cc5b6cce7eaccca5a802b4173377a1c2ba90654246789a8fa2334426d11"
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dependencies = [
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"bitflags",
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"crc32fast",
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"fdeflate",
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"flate2",
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"miniz_oxide",
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]
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[[package]]
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name = "simd-adler32"
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version = "0.3.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "238abfbb77c1915110ad968465608b68e869e0772622c9656714e73e5a1a522f"
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13
Cargo.toml
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13
Cargo.toml
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[package]
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name = "julia-set"
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version = "0.1.0"
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edition = "2021"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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image = { version = "0.24.6", default_features = false, features = ["png"] }
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# Enable high optimizations for dependencies
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[profile.dev.package."*"]
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opt-level = 3
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1
rustfmt.toml
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1
rustfmt.toml
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hard_tabs = true
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65
src/main.rs
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65
src/main.rs
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use std::time::SystemTime;
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use image::{Rgb, RgbImage};
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const WIDTH: u32 = 4096;
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const HEIGHT: u32 = WIDTH / 2;
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const TOTAL_UNITS_WIDE: f64 = 4.0;
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const MAX_ITER: u32 = 512;
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const CX: f64 = -0.98;
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const CY: f64 = -0.277;
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const WIDTH_F: f64 = WIDTH as f64;
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const HEIGHT_F: f64 = HEIGHT as f64;
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const PIXELS_PER_UNIT: f64 = WIDTH_F / TOTAL_UNITS_WIDE;
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fn main() {
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let start_time = SystemTime::now();
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let mut img = RgbImage::new(WIDTH, HEIGHT);
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for y in 0..HEIGHT {
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for x in 0..WIDTH {
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let pixel = fractal(x as f64, y as f64);
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img.put_pixel(x, y, pixel);
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}
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}
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println!(
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"Generating took {} ms",
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start_time.elapsed().unwrap().as_millis()
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);
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let start_time = SystemTime::now();
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let filename = format!("julia_set_cx{:.3}_cy{:.3}.png", CX, CY);
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img.save(filename).unwrap();
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println!(
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"Saving took {} ms",
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start_time.elapsed().unwrap().as_millis()
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);
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}
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fn fractal(x: f64, y: f64) -> Rgb<u8> {
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let mut x = (x - WIDTH_F / 2.0) / PIXELS_PER_UNIT;
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let mut y = (y - HEIGHT_F / 2.0) / PIXELS_PER_UNIT;
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let mut iterations = 0;
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while (x * x + y * y) < 4.0 {
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(x, y) = (
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x * x - y * y + CX, //
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2.0 * x * y + CY,
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);
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iterations += 1;
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if iterations == MAX_ITER {
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return Rgb([0, 0, 0]);
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}
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}
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let i = iterations.min(255) as u8;
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Rgb([
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i.saturating_mul(4),
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i.saturating_mul(8),
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i.saturating_mul(12),
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])
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}
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