3 files changed, 5 insertions, 0 deletions
diff --git a/indra/llwindow/llwindowmacosx.cpp b/indra/llwindow/llwindowmacosx.cpp
index cb2abc5bc0..4dd11541b9 100644
--- a/indra/llwindow/llwindowmacosx.cpp
+++ b/indra/llwindow/llwindowmacosx.cpp
@@ -1266,6 +1266,7 @@ BOOL LLWindowMacOSX::setSize(const LLCoordScreen size)
 
 void LLWindowMacOSX::swapBuffers()
 {
+	glFinish();
 	aglSwapBuffers(mContext);
 }
 
diff --git a/indra/llwindow/llwindowsdl.cpp b/indra/llwindow/llwindowsdl.cpp
index b65287715c..e41aa9820f 100644
--- a/indra/llwindow/llwindowsdl.cpp
+++ b/indra/llwindow/llwindowsdl.cpp
@@ -984,7 +984,10 @@ BOOL LLWindowSDL::setSize(const LLCoordScreen size)
 void LLWindowSDL::swapBuffers()
 {
 	if (mWindow)
+	{	
+		glFinish();
 		SDL_GL_SwapBuffers();
+	}
 }
 
 U32 LLWindowSDL::getFSAASamples()
diff --git a/indra/llwindow/llwindowwin32.cpp b/indra/llwindow/llwindowwin32.cpp
index 551d487cc8..20286b4ca8 100644
--- a/indra/llwindow/llwindowwin32.cpp
+++ b/indra/llwindow/llwindowwin32.cpp
@@ -2865,6 +2865,7 @@ BOOL LLWindowWin32::resetDisplayResolution()
 
 void LLWindowWin32::swapBuffers()
 {
+	glFinish();
 	SwapBuffers(mhDC);
 }