34 lines
881 B
Rust
34 lines
881 B
Rust
use super::{utility, Color, Rgb, RgbImage};
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use std::io::Write;
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pub fn write_color(out: &mut impl Write, pixel_color: &Color) {
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write!(
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out,
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"{} {} {}\n",
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(255.999 * pixel_color.x()) as u32,
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(255.999 * pixel_color.y()) as u32,
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(255.999 * pixel_color.z()) as u32
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)
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.unwrap();
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}
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pub fn put_color(img: &mut RgbImage, pixel_color: &Color, x: u32, y: u32, samples_per_pixel: u32) {
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let mut r = pixel_color.x();
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let mut g = pixel_color.y();
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let mut b = pixel_color.z();
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let scale = 1.0 / samples_per_pixel as f64;
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r *= scale;
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g *= scale;
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b *= scale;
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img.put_pixel(
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x,
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y,
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Rgb([
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(256.0 * utility::clamp(r, 0.0, 0.999)) as u8,
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(256.0 * utility::clamp(g, 0.0, 0.999)) as u8,
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(256.0 * utility::clamp(b, 0.0, 0.999)) as u8,
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]),
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);
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}
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