From 946da4e507dd00e6e7a9e465d38494bcafe4f652 Mon Sep 17 00:00:00 2001
From: Graham Linden <graham@lindenlab.com>
Date: Mon, 15 Jul 2019 15:04:48 -0700
Subject: SL-10761

Add work-around for broken intel drivers which can't use glReadPixels from RGBA FBOs to get alpha without locking up.
---
 indra/newview/lldynamictexture.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

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

diff --git a/indra/newview/lldynamictexture.cpp b/indra/newview/lldynamictexture.cpp
index 5e283f7cd0..e1f41a9bd7 100644
--- a/indra/newview/lldynamictexture.cpp
+++ b/indra/newview/lldynamictexture.cpp
@@ -240,6 +240,7 @@ BOOL LLViewerDynamicTexture::updateAllInstances()
 				gDepthDirty = TRUE;
 								
 				gGL.color4f(1,1,1,1);
+                dynamicTexture->setBoundTarget(use_fbo ? &gPipeline.mWaterDis : nullptr);
 				dynamicTexture->preRender();	// Must be called outside of startRender()
 				result = FALSE;
 				if (dynamicTexture->render())
@@ -250,7 +251,7 @@ BOOL LLViewerDynamicTexture::updateAllInstances()
 				}
 				//gGL.flush();
 				LLVertexBuffer::unbind();
-				
+				dynamicTexture->setBoundTarget(nullptr);
 				dynamicTexture->postRender(result);
 			}
 		}
-- 
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