* Fix lighting "early cull" issue for terrain lighting shader as well

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@7794 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/core-data/Common/MatDefs/Light/Lighting.vert

@@ -99,6 +99,9 @@ void lightComputeDir(in vec3 worldPos, in vec4 color, in vec4 position, out vec4
   }
 
   float lightComputeSpecular(in vec3 norm, in vec3 viewdir, in vec3 lightdir, in float shiny){
+      if (shiny <= 1.0){
+          return 0.0;
+      }
       #ifndef LOW_QUALITY
         vec3 H = (viewdir + lightdir) * vec3(0.5);
         return pow(max(dot(H, norm), 0.0), shiny);

engine/src/lwjgl-ogl/com/jme3/system/lwjgl/LwjglDisplay.java

@@ -126,6 +126,12 @@ public class LwjglDisplay extends LwjglAbstractDisplay {
         
         Display.setVSyncEnabled(settings.isVSync());
         
+        if (created.get()){
+            Display.releaseContext();
+            Display.makeCurrent();
+            Display.update();
+        }
+
         if (!created.get() || pixelFormatChanged){
             ContextAttribs attr = createContextAttribs();
             if (attr != null){

engine/src/terrain/Common/MatDefs/Terrain/TerrainLighting.frag

@@ -161,6 +161,9 @@ float lightComputeDiffuse(in vec3 norm, in vec3 lightdir, in vec3 viewdir){
 }
 
 float lightComputeSpecular(in vec3 norm, in vec3 viewdir, in vec3 lightdir, in float shiny){
+    if (shiny <= 1.0){
+        return 0.0;
+    }
     #ifdef WARDISO
         // Isotropic Ward
         vec3 halfVec = normalize(viewdir + lightdir);