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.envrc
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.envrc
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use flake
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.gitignore
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.gitignore
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.direnv
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3
assignment-0/.gitignore
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assignment-0/.gitignore
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/target
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out.ppm
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390
assignment-0/Cargo.lock
generated
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assignment-0/Cargo.lock
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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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[[package]]
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"anyhow",
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"clap",
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"rand",
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]
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"clap_lex",
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"is-terminal",
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"once_cell",
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"strsim",
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"termcolor",
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]
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"quote",
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"syn",
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]
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"errno-dragonfly",
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"libc",
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"winapi",
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]
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dependencies = [
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"cc",
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"libc",
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]
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[[package]]
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"cfg-if",
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"libc",
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"wasi",
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]
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[[package]]
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"libc",
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]
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[[package]]
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"syn",
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"version_check",
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]
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[[package]]
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||||||
|
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows-sys"
|
||||||
|
version = "0.42.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "5a3e1820f08b8513f676f7ab6c1f99ff312fb97b553d30ff4dd86f9f15728aa7"
|
||||||
|
dependencies = [
|
||||||
|
"windows_aarch64_gnullvm",
|
||||||
|
"windows_aarch64_msvc",
|
||||||
|
"windows_i686_gnu",
|
||||||
|
"windows_i686_msvc",
|
||||||
|
"windows_x86_64_gnu",
|
||||||
|
"windows_x86_64_gnullvm",
|
||||||
|
"windows_x86_64_msvc",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_aarch64_gnullvm"
|
||||||
|
version = "0.42.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "8c9864e83243fdec7fc9c5444389dcbbfd258f745e7853198f365e3c4968a608"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_aarch64_msvc"
|
||||||
|
version = "0.42.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "4c8b1b673ffc16c47a9ff48570a9d85e25d265735c503681332589af6253c6c7"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_i686_gnu"
|
||||||
|
version = "0.42.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "de3887528ad530ba7bdbb1faa8275ec7a1155a45ffa57c37993960277145d640"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_i686_msvc"
|
||||||
|
version = "0.42.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "bf4d1122317eddd6ff351aa852118a2418ad4214e6613a50e0191f7004372605"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_x86_64_gnu"
|
||||||
|
version = "0.42.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "c1040f221285e17ebccbc2591ffdc2d44ee1f9186324dd3e84e99ac68d699c45"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_x86_64_gnullvm"
|
||||||
|
version = "0.42.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "628bfdf232daa22b0d64fdb62b09fcc36bb01f05a3939e20ab73aaf9470d0463"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_x86_64_msvc"
|
||||||
|
version = "0.42.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "447660ad36a13288b1db4d4248e857b510e8c3a225c822ba4fb748c0aafecffd"
|
||||||
11
assignment-0/Cargo.toml
Normal file
11
assignment-0/Cargo.toml
Normal file
|
|
@ -0,0 +1,11 @@
|
||||||
|
[package]
|
||||||
|
name = "assignment-0"
|
||||||
|
version = "0.1.0"
|
||||||
|
edition = "2021"
|
||||||
|
|
||||||
|
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||||
|
|
||||||
|
[dependencies]
|
||||||
|
anyhow = "1.0.68"
|
||||||
|
clap = { version = "4.1.1", features = ["derive"] }
|
||||||
|
rand = "0.8.5"
|
||||||
33
assignment-0/src/main.rs
Normal file
33
assignment-0/src/main.rs
Normal file
|
|
@ -0,0 +1,33 @@
|
||||||
|
use std::{fs::File, path::PathBuf};
|
||||||
|
|
||||||
|
use anyhow::Result;
|
||||||
|
use clap::Parser;
|
||||||
|
|
||||||
|
use crate::value_noise::generate_noise;
|
||||||
|
|
||||||
|
mod ppm;
|
||||||
|
mod value_noise;
|
||||||
|
mod vec2;
|
||||||
|
|
||||||
|
#[derive(Parser)]
|
||||||
|
struct Opt {
|
||||||
|
#[clap(short = 'o', long = "out", default_value = "out.ppm")]
|
||||||
|
output_path: PathBuf,
|
||||||
|
}
|
||||||
|
|
||||||
|
fn main() -> Result<()> {
|
||||||
|
let opt = Opt::parse();
|
||||||
|
|
||||||
|
let rng = rand::thread_rng();
|
||||||
|
|
||||||
|
let width = 256;
|
||||||
|
let height = 256;
|
||||||
|
let ppm = generate_noise(width, height, rng);
|
||||||
|
|
||||||
|
{
|
||||||
|
let file = File::create(opt.output_path)?;
|
||||||
|
ppm.write(file)?;
|
||||||
|
}
|
||||||
|
|
||||||
|
Ok(())
|
||||||
|
}
|
||||||
26
assignment-0/src/ppm.rs
Normal file
26
assignment-0/src/ppm.rs
Normal file
|
|
@ -0,0 +1,26 @@
|
||||||
|
use std::io::{Result, Write};
|
||||||
|
|
||||||
|
pub struct Pixel(pub u8, pub u8, pub u8);
|
||||||
|
|
||||||
|
pub struct Ppm {
|
||||||
|
pub(crate) width: usize,
|
||||||
|
pub(crate) height: usize,
|
||||||
|
pub(crate) data: Vec<Pixel>,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl Ppm {
|
||||||
|
pub fn write(&self, mut w: impl Write) -> Result<()> {
|
||||||
|
// Header
|
||||||
|
let header = format!("P3 {} {} 255\n", self.width, self.height);
|
||||||
|
w.write_all(header.as_bytes())?;
|
||||||
|
|
||||||
|
// Pixel data
|
||||||
|
for pixel in self.data.iter() {
|
||||||
|
let Pixel(red, green, blue) = pixel;
|
||||||
|
let pixel = format!("{red} {green} {blue}\n");
|
||||||
|
w.write_all(pixel.as_bytes())?;
|
||||||
|
}
|
||||||
|
|
||||||
|
Ok(())
|
||||||
|
}
|
||||||
|
}
|
||||||
88
assignment-0/src/value_noise.rs
Normal file
88
assignment-0/src/value_noise.rs
Normal file
|
|
@ -0,0 +1,88 @@
|
||||||
|
// https://www.scratchapixel.com/lessons/procedural-generation-virtual-worlds/procedural-patterns-noise-part-1/creating-simple-2D-noise.html
|
||||||
|
|
||||||
|
use std::mem::{self};
|
||||||
|
|
||||||
|
use rand::{Rng, RngCore};
|
||||||
|
|
||||||
|
use crate::ppm::{Pixel, Ppm};
|
||||||
|
use crate::vec2::Vec2;
|
||||||
|
|
||||||
|
const MAX_TABLE_SIZE: usize = 256;
|
||||||
|
const MAX_TABLE_SIZE_MASK: usize = MAX_TABLE_SIZE - 1;
|
||||||
|
|
||||||
|
pub fn generate_noise(width: usize, height: usize, rng: impl RngCore) -> Ppm {
|
||||||
|
let mut noise_map = vec![0.0; width * height];
|
||||||
|
let noise = ValueNoise::new(rng);
|
||||||
|
let frequency = 0.05;
|
||||||
|
|
||||||
|
for j in 0..height {
|
||||||
|
for i in 0..width {
|
||||||
|
let vec = Vec2::new(i as f64, j as f64);
|
||||||
|
noise_map[j * width + i] = noise.eval(vec * frequency);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
let data = noise_map
|
||||||
|
.into_iter()
|
||||||
|
.map(|f| {
|
||||||
|
let v = (f * 256.0).floor() as u8;
|
||||||
|
Pixel(v, v, v)
|
||||||
|
})
|
||||||
|
.collect();
|
||||||
|
Ppm {
|
||||||
|
width,
|
||||||
|
height,
|
||||||
|
data,
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
pub struct ValueNoise {
|
||||||
|
r: [f64; MAX_TABLE_SIZE * MAX_TABLE_SIZE],
|
||||||
|
}
|
||||||
|
|
||||||
|
impl ValueNoise {
|
||||||
|
pub fn new(mut rng: impl RngCore) -> Self {
|
||||||
|
let mut r: [f64; MAX_TABLE_SIZE * MAX_TABLE_SIZE] = unsafe { mem::zeroed() };
|
||||||
|
for k in 0..MAX_TABLE_SIZE * MAX_TABLE_SIZE {
|
||||||
|
r[k] = rng.gen_range(0.0..1.0);
|
||||||
|
}
|
||||||
|
ValueNoise { r }
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn eval(&self, point: Vec2) -> f64 {
|
||||||
|
let xi = point.x.floor();
|
||||||
|
let yi = point.y.floor();
|
||||||
|
|
||||||
|
let tx = point.x - xi;
|
||||||
|
let ty = point.y - yi;
|
||||||
|
|
||||||
|
let xi = xi as usize;
|
||||||
|
let yi = yi as usize;
|
||||||
|
|
||||||
|
let rx0 = xi & MAX_TABLE_SIZE_MASK;
|
||||||
|
let rx1 = (rx0 + 1) & MAX_TABLE_SIZE_MASK;
|
||||||
|
let ry0 = yi & MAX_TABLE_SIZE_MASK;
|
||||||
|
let ry1 = (ry0 + 1) & MAX_TABLE_SIZE_MASK;
|
||||||
|
|
||||||
|
let c00 = self.r[ry0 * MAX_TABLE_SIZE_MASK + rx0];
|
||||||
|
let c10 = self.r[ry0 * MAX_TABLE_SIZE_MASK + rx1];
|
||||||
|
let c01 = self.r[ry1 * MAX_TABLE_SIZE_MASK + rx0];
|
||||||
|
let c11 = self.r[ry1 * MAX_TABLE_SIZE_MASK + rx1];
|
||||||
|
|
||||||
|
let sx = smooth_step(tx);
|
||||||
|
let sy = smooth_step(ty);
|
||||||
|
|
||||||
|
let nx0 = lerp(c00, c10, sx);
|
||||||
|
let nx1 = lerp(c01, c11, sx);
|
||||||
|
|
||||||
|
lerp(nx0, nx1, sy)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn smooth_step(t: f64) -> f64 {
|
||||||
|
t * t * (3.0 - 2.0 * t)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn lerp(lo: f64, hi: f64, t: f64) -> f64 {
|
||||||
|
lo * (1.0 - t) + hi * t
|
||||||
|
}
|
||||||
23
assignment-0/src/vec2.rs
Normal file
23
assignment-0/src/vec2.rs
Normal file
|
|
@ -0,0 +1,23 @@
|
||||||
|
use std::ops::Mul;
|
||||||
|
|
||||||
|
pub struct Vec2<T = f64> {
|
||||||
|
pub x: T,
|
||||||
|
pub y: T,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl<T> Vec2<T> {
|
||||||
|
pub fn new(x: T, y: T) -> Self {
|
||||||
|
Self { x, y }
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl<S: Copy, T: Mul<S>> Mul<S> for Vec2<T> {
|
||||||
|
type Output = Vec2<T::Output>;
|
||||||
|
|
||||||
|
fn mul(self, rhs: S) -> Self::Output {
|
||||||
|
Vec2 {
|
||||||
|
x: self.x * rhs,
|
||||||
|
y: self.y * rhs,
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
93
flake.lock
Normal file
93
flake.lock
Normal file
|
|
@ -0,0 +1,93 @@
|
||||||
|
{
|
||||||
|
"nodes": {
|
||||||
|
"fenix": {
|
||||||
|
"inputs": {
|
||||||
|
"nixpkgs": "nixpkgs",
|
||||||
|
"rust-analyzer-src": "rust-analyzer-src"
|
||||||
|
},
|
||||||
|
"locked": {
|
||||||
|
"lastModified": 1674240251,
|
||||||
|
"narHash": "sha256-AVMmf/CtcGensTZmMicToDpOwySEGNKYgRPC7lu3m8w=",
|
||||||
|
"owner": "nix-community",
|
||||||
|
"repo": "fenix",
|
||||||
|
"rev": "d8067f4d1d3d30732703209bec5ca7d62aaececc",
|
||||||
|
"type": "github"
|
||||||
|
},
|
||||||
|
"original": {
|
||||||
|
"owner": "nix-community",
|
||||||
|
"repo": "fenix",
|
||||||
|
"type": "github"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"flake-utils": {
|
||||||
|
"locked": {
|
||||||
|
"lastModified": 1667395993,
|
||||||
|
"narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
|
||||||
|
"owner": "numtide",
|
||||||
|
"repo": "flake-utils",
|
||||||
|
"rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
|
||||||
|
"type": "github"
|
||||||
|
},
|
||||||
|
"original": {
|
||||||
|
"id": "flake-utils",
|
||||||
|
"type": "indirect"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"nixpkgs": {
|
||||||
|
"locked": {
|
||||||
|
"lastModified": 1673796341,
|
||||||
|
"narHash": "sha256-1kZi9OkukpNmOaPY7S5/+SlCDOuYnP3HkXHvNDyLQcc=",
|
||||||
|
"owner": "nixos",
|
||||||
|
"repo": "nixpkgs",
|
||||||
|
"rev": "6dccdc458512abce8d19f74195bb20fdb067df50",
|
||||||
|
"type": "github"
|
||||||
|
},
|
||||||
|
"original": {
|
||||||
|
"owner": "nixos",
|
||||||
|
"ref": "nixos-unstable",
|
||||||
|
"repo": "nixpkgs",
|
||||||
|
"type": "github"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"nixpkgs_2": {
|
||||||
|
"locked": {
|
||||||
|
"lastModified": 1667629849,
|
||||||
|
"narHash": "sha256-P+v+nDOFWicM4wziFK9S/ajF2lc0N2Rg9p6Y35uMoZI=",
|
||||||
|
"owner": "nixos",
|
||||||
|
"repo": "nixpkgs",
|
||||||
|
"rev": "3bacde6273b09a21a8ccfba15586fb165078fb62",
|
||||||
|
"type": "github"
|
||||||
|
},
|
||||||
|
"original": {
|
||||||
|
"id": "nixpkgs",
|
||||||
|
"type": "indirect"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"root": {
|
||||||
|
"inputs": {
|
||||||
|
"fenix": "fenix",
|
||||||
|
"flake-utils": "flake-utils",
|
||||||
|
"nixpkgs": "nixpkgs_2"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"rust-analyzer-src": {
|
||||||
|
"flake": false,
|
||||||
|
"locked": {
|
||||||
|
"lastModified": 1674162026,
|
||||||
|
"narHash": "sha256-iY0bxoVE7zAZmp0BB/m5hZW5pWHUfgntDvc1m2zyt/U=",
|
||||||
|
"owner": "rust-lang",
|
||||||
|
"repo": "rust-analyzer",
|
||||||
|
"rev": "6e52c64031825920983515b9e975e93232739f7f",
|
||||||
|
"type": "github"
|
||||||
|
},
|
||||||
|
"original": {
|
||||||
|
"owner": "rust-lang",
|
||||||
|
"ref": "nightly",
|
||||||
|
"repo": "rust-analyzer",
|
||||||
|
"type": "github"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"root": "root",
|
||||||
|
"version": 7
|
||||||
|
}
|
||||||
20
flake.nix
Normal file
20
flake.nix
Normal file
|
|
@ -0,0 +1,20 @@
|
||||||
|
{
|
||||||
|
inputs = { fenix.url = "github:nix-community/fenix"; };
|
||||||
|
|
||||||
|
outputs = { self, nixpkgs, flake-utils, fenix }:
|
||||||
|
flake-utils.lib.eachDefaultSystem (system:
|
||||||
|
let
|
||||||
|
pkgs = import nixpkgs {
|
||||||
|
inherit system;
|
||||||
|
overlays = [ fenix.overlays.default ];
|
||||||
|
};
|
||||||
|
|
||||||
|
toolchain = pkgs.fenix.default;
|
||||||
|
in rec {
|
||||||
|
devShell = pkgs.mkShell {
|
||||||
|
packages = (with pkgs; [ cargo-watch cargo-deny cargo-edit ])
|
||||||
|
++ (with toolchain; [ cargo rustc rustfmt clippy ]);
|
||||||
|
CARGO_UNSTABLE_SPARSE_REGISTRY = "true";
|
||||||
|
};
|
||||||
|
});
|
||||||
|
}
|
||||||
Loading…
Reference in a new issue