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library: render: pathtracer: sequential passes

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This commit is contained in:
Antoine Martin 2020-04-08 17:54:45 +02:00
parent 2fe65e9bc6
commit be1f400b34
1 changed files with 21 additions and 11 deletions
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32
pathtracer/src/render/pathtrace/pathtracer.rs
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@ -1,4 +1,4 @@
use indicatif::ParallelProgressIterator;
use indicatif::ProgressIterator;
use rayon::prelude::*;
use super::super::utils::{buffer_to_image, sample_hemisphere};
@ -43,23 +43,33 @@ impl Pathtracer {
// Ensure at least one round of shots
let img_buf = (0..self.scene.shot_rays.max(1))
.into_par_iter()
.progress_with(p)
.map(|_| {
let mut buffer: Vec<LinearColor> = Vec::new();
buffer.resize_with(total as usize, LinearColor::black);
for y in 0..self.scene.camera.film().height() {
for x in 0..self.scene.camera.film().width() {
let i = x + y * self.scene.camera.film().width();
buffer[i as usize] += self.pixel_ray(x as f32, y as f32);
}
}
(0..height)
.into_par_iter()
.map(|y| {
let mut row: Vec<LinearColor> = Vec::new();
row.resize_with(width as usize, LinearColor::black);
buffer
for x in 0..width {
row[x as usize] += self.pixel_ray(x as f32, y as f32);
}
row
})
.reduce(
|| Vec::new(),
|mut buf, row| {
buf.extend(row);
buf
},
)
})
.reduce(
|| {
.fold(
{
let mut vec = Vec::new();
vec.resize_with(total as usize, LinearColor::black);
vec