From a4642c0e9f6fa9d51be0fe3200f610444bc5fa74 Mon Sep 17 00:00:00 2001
From: numzero <numzer0@yandex.ru>
Date: Tue, 24 Dec 2024 02:21:37 +0300
Subject: [PATCH] Add a safeguard to a potentially-infinite loop

---
 src/bin/envmap/perlin.wgsl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/bin/envmap/perlin.wgsl b/src/bin/envmap/perlin.wgsl
index b07bb7c..e845b49 100644
--- a/src/bin/envmap/perlin.wgsl
+++ b/src/bin/envmap/perlin.wgsl
@@ -137,12 +137,12 @@ fn rand_float(state: ptr<function, u32>) -> f32 {
 }
 
 fn rand_sphere(state: ptr<function, u32>) -> vec3f {
-	loop {
+	for (var k = 0; k < 16; k++) {
 		let v = vec3f(rand_float(state), rand_float(state), rand_float(state)) - 0.5;
 		let l = length(v);
 		if (length(v) <= 0.5) {
 			return v / l;
 		}
 	}
-	return vec3f(0.0); // unreachable
+	return vec3f(0.0); // safeguard
 }