From f36b71184aca9857fa5fd2b4cdb0c1c4f0acd742 Mon Sep 17 00:00:00 2001
From: Nathan Vegdahl <cessen@cessen.com>
Date: Fri, 17 Apr 2020 13:18:37 +0900
Subject: [PATCH] Use better seeding for slow version of Owen scramble as well.

---
 sub_crates/sobol/src/lib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sub_crates/sobol/src/lib.rs b/sub_crates/sobol/src/lib.rs
index f9a6fe2..3feaf97 100644
--- a/sub_crates/sobol/src/lib.rs
+++ b/sub_crates/sobol/src/lib.rs
@@ -63,7 +63,7 @@ pub fn sample_owen(dimension: u32, index: u32, scramble: u32) -> f32 {
 #[inline]
 pub fn sample_owen_slow(dimension: u32, index: u32, scramble: u32) -> f32 {
     let mut n = sobol_u32(dimension, index);
-    n ^= scramble;
+    n = n.reverse_bits().wrapping_add(scramble).reverse_bits();
     for i in 0..16 {
         let mask = (1 << (31 - i)) - 1;
         let hash = {