From 8b86e2ad1b1326cb3e98acd857dc93f4f1455b8c Mon Sep 17 00:00:00 2001
From: RunitaiLinden <davep@lindenlab.com>
Date: Thu, 14 Dec 2023 14:11:46 -0600
Subject: SL-20611 Followup -- fix for depth based atmospheric mask making
 atmospherics effect sun/moon/clouds

---
 indra/newview/lldrawpoolwlsky.cpp | 3 +++
 1 file changed, 3 insertions(+)

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

diff --git a/indra/newview/lldrawpoolwlsky.cpp b/indra/newview/lldrawpoolwlsky.cpp
index 05ee328e43..b14235f25c 100644
--- a/indra/newview/lldrawpoolwlsky.cpp
+++ b/indra/newview/lldrawpoolwlsky.cpp
@@ -87,6 +87,9 @@ void LLDrawPoolWLSky::endDeferredPass(S32 pass)
     cloud_shader = nullptr;
     sun_shader   = nullptr;
     moon_shader  = nullptr;
+
+    // clear the depth buffer so haze shaders can use unwritten depth as a mask
+    glClear(GL_DEPTH_BUFFER_BIT);
 }
 
 void LLDrawPoolWLSky::renderDome(const LLVector3& camPosLocal, F32 camHeightLocal, LLGLSLShader * shader) const
-- 
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