From 086da3d6f8be0fd1e35fc7fc4438d832187c0b5e Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Wed, 12 Apr 2023 09:55:00 -0500
Subject: DRTVWR-559 Make cloud pattern deterministic when cloud scroll is
 zero.

---
 indra/newview/lldrawpoolwlsky.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'indra/newview/lldrawpoolwlsky.cpp')

diff --git a/indra/newview/lldrawpoolwlsky.cpp b/indra/newview/lldrawpoolwlsky.cpp
index 820073b3e0..05ee328e43 100644
--- a/indra/newview/lldrawpoolwlsky.cpp
+++ b/indra/newview/lldrawpoolwlsky.cpp
@@ -265,6 +265,11 @@ void LLDrawPoolWLSky::renderSkyCloudsDeferred(const LLVector3& camPosLocal, F32
         F32 cloud_variance = psky ? psky->getCloudVariance() : 0.0f;
         F32 blend_factor   = psky ? psky->getBlendFactor() : 0.0f;
 
+        if (psky->getCloudScrollRate().isExactlyZero())
+        {
+            blend_factor = 0.f;
+        }
+
         // if we even have sun disc textures to work with...
         if (cloud_noise || cloud_noise_next)
         {
-- 
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