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/dev/null +++ b/Cargo.toml @@ -0,0 +1,11 @@ +[package] +name = "rusty_brot" +version = "0.1.0" +edition = "2021" + +# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html + +[dependencies] +colorgrad = "0.6.2" +image = "0.24.6" +rayon = "1.7.0" diff --git a/filename b/filename new file mode 100644 index 0000000..e69de29 diff --git a/out.mp4 b/out.mp4 new file mode 100644 index 0000000..e5fe347 Binary files /dev/null and b/out.mp4 differ diff --git a/output.png b/output.png new file mode 100644 index 0000000..ab9016c Binary files /dev/null and b/output.png differ diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..4a7fc94 --- /dev/null +++ b/src/main.rs @@ -0,0 +1,219 @@ +// TODO +// implament Color gradient with emums and match statement +// MandelbrottZoom constructor + +// ffmpeg -framerate 30 -start_number 1 -i ./animation/%00d.png -pix_fmt yuv420p out.mp4 + +#![allow(dead_code)] +#![allow(unused_variables)] +#![allow(unused_imports)] +#![allow(unused_mut)] + +extern crate image; + +use image::{Rgb, RgbImage, ColorType, save_buffer}; +use rayon::prelude::*; +use std::fs::File; +use std::sync::{Arc, Mutex}; +use std::ops::Add; +use colorgrad::Color; +use colorgrad::Gradient; + +struct Complex{ + rel: f64, + img: f64 +} + +impl Complex{ + fn distance_from_origin(&self) -> f64{ + return (self.rel * self.rel) + (self.img * self.img); + } + + fn square(&self) -> Complex{ + return Complex { rel: ((self.rel * self.rel) - (self.img * self.img)), + img: (2.0 * self.rel * self.img) } + } + + fn add(&self, c: &Complex) -> Complex{ + return Complex { rel: (self.rel + c.rel), img: (self.img + c.img) } + } +} + +struct MandelbrottZoom{ + width: u32, + height: u32, + max_iterations: i32, + starting_zoom: f64, + ending_zoom: f64, + center: Complex, + dry_run: bool, + color_pallette: Gradient, + number_of_frames: i32 + +} + +impl MandelbrottZoom{ + + fn render_animation(&self){ + (0..self.number_of_frames).into_par_iter().for_each(|frame|{ + self.render_animation_frame(frame) + }); + } + + fn run_multithreaded(&self){ + let img = Arc::new(Mutex::new(RgbImage::new(self.width, self.height))); + let img_in = Arc::clone(&img); + + (0..self.height).into_par_iter().for_each(|i| { + self.render_row_parallel(&img_in, i as i32); + }); + + img.lock().unwrap().save("hello.png").unwrap(); + } + + fn run_multithreaded_fast(&self){ + let mut pixels = vec![0; self.width as usize * self.height as usize * 3]; + let bands: Vec<(usize, &mut [u8])> = pixels.chunks_mut(self.width as usize * 3).enumerate().collect(); + + bands.into_par_iter().for_each(|(i, band)| { + self.render_line(band, i); + }); + + let _ = write_image("filename", &pixels, (self.height, self.width)); + + } + + fn run_singlethreaded(&self){ + let mut img = RgbImage::new(self.width, self.height); + + for y in 0..self.height{ + for x in 0..self.width{ + let point: Complex = self.pixel_to_point(x as i32, y as i32, 0.0); + let pixel_value: i32 = self.iterations(point); + let pixel = get_pixel_color(&self.color_pallette, self.max_iterations, pixel_value); + img.put_pixel(x as u32, y as u32, pixel); + } + } + img.save("rendered_on_1_thread.png").unwrap(); + } + + fn render_animation_frame(&self, frame_index: i32, ){ + + let total_zoom_range = self.starting_zoom - self.ending_zoom; + let zoom_step = total_zoom_range / (self.number_of_frames as f64); + let zoom_offset = frame_index as f64 * zoom_step; + + let mut img = RgbImage::new(self.width, self.height); + + for y in 0..self.height{ + for x in 0..self.width{ + let point: Complex = self.pixel_to_point(x as i32, y as i32, zoom_offset); + let pixel_value: i32 = self.iterations(point); + let pixel = get_pixel_color(&self.color_pallette, self.max_iterations, pixel_value); + img.put_pixel(x as u32, y as u32, pixel); + } + } + img.save("./animation/".to_string() + &frame_index.to_string()+ ".png").unwrap(); + } + + fn render_row_parallel(&self, img: &Arc>>, row_index: i32){ + let mut row: Vec> = Vec::new(); + for column_index in 0..self.width{ + let point: Complex = self.pixel_to_point(column_index as i32, row_index as i32, 0.0); + let pixel_value: i32 = self.iterations(point); + row.push(get_pixel_color(&self.color_pallette, self.max_iterations, pixel_value)); + } + + let mut imglock = img.lock().unwrap(); + for pixel in 0..row.len(){ + imglock.put_pixel(pixel as u32, row_index as u32, row[pixel]) + } + } + + fn render_line(&self, pixels: &mut [u8], y: usize){ + + for x in 0..self.width{ + let point: Complex = self.pixel_to_point(x as i32, y as i32, 0.0); + let pixel_value: i32 = self.iterations(point); + + let pixel = get_pixel_color_raw(&self.color_pallette, self.max_iterations, pixel_value); + + pixels[x as usize * 3] = pixel[0]; + pixels[x as usize * 3 + 1] = pixel[1]; + pixels[x as usize * 3 + 2] = pixel[2]; + } + } + + fn pixel_to_point(&self, pix_x: i32, pix_y: i32, zoom_offset: f64) -> Complex{ + let dx = (self.width / 2) as f64; + let dy = (self.height / 2) as f64; + + let top_left_rel = (self.center.rel) - (dx * self.starting_zoom); + let top_left_img = (self.center.img) + (dy * self.starting_zoom); + + let top_left = Complex {rel: top_left_rel, img: top_left_img}; + + return Complex { rel: (top_left.rel + (pix_x as f64 * (self.starting_zoom + zoom_offset))), img: (top_left.img - (pix_y as f64 * (self.starting_zoom + zoom_offset))) } + } + + fn iterations(&self, point: Complex) -> i32{ + let mut z = Complex { rel: (0.0), img: (0.0) }; + + for iteration in 0..self.max_iterations { + z = z.square(); + z = z.add(&point); + + if z.distance_from_origin() >= 4.0{ + return iteration; + } + } + return self.max_iterations; + } + + +} + +fn get_pixel_color(gradient: &Gradient, max_iteration: i32, iter_count: i32) -> Rgb{ + + let interpolation_value = iter_count as f64 / max_iteration as f64; + let color = gradient.at(interpolation_value).to_rgba8(); + + return Rgb([color[0], color[1], color[2]]); +} + +fn get_pixel_color_raw(gradient: &Gradient, max_iteration: i32, iter_count: i32) -> Vec{ + + let interpolation_value = iter_count as f64 / max_iteration as f64; + let color = gradient.at(interpolation_value).to_rgba8(); + + return vec![color[0], color[1], color[2]]; +} + +fn write_image( + filename: &str, + pixels: &[u8], + bounds: (u32, u32), +) -> Result<(), image::ImageError>{ + + let output = File::create(filename)?; + return image::save_buffer("./output.png", pixels, bounds.1, bounds.0, ColorType::Rgb8); +} + +fn main() { + + let frame = MandelbrottZoom { + width: 1920, + height: 1080, + max_iterations: 100000, + starting_zoom: 4.0 / 1920 as f64, + ending_zoom: 20.0 / 1920 as f64, + center: Complex {rel: -1.674409674093473, img: 0.000004716540768697223 }, + dry_run: false, + color_pallette: colorgrad::rainbow(), + number_of_frames: 500 + }; + // frame.render_animation(); + + frame.run_multithreaded_fast() + +}