From b04c4ad042f235ab6ee225312b711354b44839ff Mon Sep 17 00:00:00 2001
From: shadowislord <shadowislord@gmail.com>
Date: Sat, 31 Jan 2015 15:47:25 -0500
Subject: [PATCH] Flush GL pipeline for pbuffer after frame (required because
 there's no backbuffer)

---
 .../main/java/com/jme3/system/lwjgl/LwjglOffscreenBuffer.java | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/jme3-lwjgl/src/main/java/com/jme3/system/lwjgl/LwjglOffscreenBuffer.java b/jme3-lwjgl/src/main/java/com/jme3/system/lwjgl/LwjglOffscreenBuffer.java
index acec23768..efdb5dfdf 100644
--- a/jme3-lwjgl/src/main/java/com/jme3/system/lwjgl/LwjglOffscreenBuffer.java
+++ b/jme3-lwjgl/src/main/java/com/jme3/system/lwjgl/LwjglOffscreenBuffer.java
@@ -126,6 +126,10 @@ public class LwjglOffscreenBuffer extends LwjglContext implements Runnable {
         checkGLError();
 
         renderer.postFrame();
+        
+        // Need to flush GL commands 
+        // to see any result on the pbuffer's front buffer.
+        GL11.glFlush();
 
         int frameRate = settings.getFrameRate();
         if (frameRate >= 1) {