ambroisie/pathtracer
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library: render: don't return infinite weight

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hemisphere sampling previously could return infinite, producing NaNs
when later multiplying that weight by 0.
This commit is contained in:
Antoine Martin 2020-05-09 02:05:12 +02:00
parent dad5113724
commit ae3931e796
1 changed files with 1 additions and 1 deletions
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pathtracer/src/render/utils.rs
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@ -101,7 +101,7 @@ pub fn sample_hemisphere(normal: Unit<Vector>) -> (Unit<Vector>, f32) {
// The probability to have picked the ray is inversely proportional to cosine of the angle with // The probability to have picked the ray is inversely proportional to cosine of the angle with
// the normal // the normal
(scattered, 1. / scattered.dot(&normal)) (scattered, (1. / scattered.dot(&normal)).min(f32::MAX))
} }
pub fn buffer_to_image(buffer: &[LinearColor], passes: u32, width: u32, height: u32) -> RgbImage { pub fn buffer_to_image(buffer: &[LinearColor], passes: u32, width: u32, height: u32) -> RgbImage {