From 73dbed5bfc2656a806063a8b697288634d12c439 Mon Sep 17 00:00:00 2001
From: Ben Steffensmeier <Benjamin.P.Steffensmeier@raytheon.com>
Date: Tue, 4 Dec 2012 12:27:11 -0600
Subject: [PATCH] Issue #1371 fix offscreen rendering on graphics cards that
 don't support luminance.

Former-commit-id: 4c620ffc4a6df585c67b41868ec1b28dab21a7e4
---
 .../viz/core/gl/ext/GLOffscreenRenderingExtension.java         | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/cave/com.raytheon.viz.core.gl/src/com/raytheon/viz/core/gl/ext/GLOffscreenRenderingExtension.java b/cave/com.raytheon.viz.core.gl/src/com/raytheon/viz/core/gl/ext/GLOffscreenRenderingExtension.java
index cd7ab01ed1..f8fc9d01f4 100644
--- a/cave/com.raytheon.viz.core.gl/src/com/raytheon/viz/core/gl/ext/GLOffscreenRenderingExtension.java
+++ b/cave/com.raytheon.viz.core.gl/src/com/raytheon/viz/core/gl/ext/GLOffscreenRenderingExtension.java
@@ -218,13 +218,14 @@ public class GLOffscreenRenderingExtension extends GraphicsExtension<IGLTarget>
                 checkedLuminance = true;
                 try {
                     renderOffscreen(image);
-                    renderOnscreen();
                 } catch (VizException e) {
                     // assume we don't support luminance
                     supportsLuminance = false;
                     // Reconstruct image
                     image = constructOffscreenImage(dataType, dimensions,
                             parameters);
+                } finally {
+                    renderOnscreen();
                 }
             }
             return image;