From 2052cbaaa4bf6248c704431b5700db3d16a41241 Mon Sep 17 00:00:00 2001
From: nsfisis <nsfisis@gmail.com>
Date: Sat, 4 Feb 2023 13:55:45 +0900
Subject: 5.7

---
 src/rtw/texture.zig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/rtw/texture.zig b/src/rtw/texture.zig
index 6322ac0..ae24265 100644
--- a/src/rtw/texture.zig
+++ b/src/rtw/texture.zig
@@ -99,6 +99,6 @@ pub const NoiseTexture = struct {
     fn value(tx: NoiseTexture, u: f64, v: f64, p: Vec3) Color {
         _ = u;
         _ = v;
-        return rgb(1, 1, 1).mul(tx.perlin.turb(p.mul(tx.scale), 7));
+        return rgb(1, 1, 1).mul(0.5 * (1.0 + @sin(tx.scale * p.z + 10.0 * tx.perlin.turb(p, 7))));
     }
 };
-- 
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