WaterFilter reflection is now correctly rendered when the up axis of the cam is not Y

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@7567 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/core/com/jme3/post/FilterPostProcessor.java

@@ -194,7 +194,7 @@ public class FilterPostProcessor implements SceneProcessor, Savable {
 
     public void renderFilterChain(Renderer r, FrameBuffer sceneFb) {
         Texture2D tex = filterTexture;
-        FrameBuffer buff = null;
+        FrameBuffer buff = sceneFb;
         boolean msDepth = depthTexture != null && depthTexture.getImage().getMultiSamples() > 1;
         for (int i = 0; i < filters.size(); i++) {
             Filter filter = filters.get(i);
@@ -260,6 +260,9 @@ public class FilterPostProcessor implements SceneProcessor, Savable {
             sceneBuffer = renderFrameBufferMS;
         }
         renderFilterChain(renderer, sceneBuffer);
+        renderManager.setCamera(viewPort.getCamera(), false);
+        
+        renderer.setFrameBuffer(outputBuffer);
 
     }
 

engine/src/desktop-fx/com/jme3/post/filters/TranslucentBucketFilter.java

@@ -49,7 +49,9 @@ public final class TranslucentBucketFilter extends Filter {
     @Override
     public void postFrame(RenderManager renderManager, ViewPort viewPort, FrameBuffer prevFilterBuffer, FrameBuffer sceneBuffer) {
         renderManager.setCamera(viewPort.getCamera(), false);
-        renderManager.getRenderer().copyFrameBuffer(prevFilterBuffer, sceneBuffer, false);
+        if(prevFilterBuffer != sceneBuffer){
+            renderManager.getRenderer().copyFrameBuffer(prevFilterBuffer, sceneBuffer, false);
+        }
         renderManager.getRenderer().setFrameBuffer(sceneBuffer);
         viewPort.getQueue().renderQueue(RenderQueue.Bucket.Translucent, renderManager, viewPort.getCamera());
     }

engine/src/desktop-fx/com/jme3/water/WaterFilter.java

@@ -53,6 +53,7 @@ import com.jme3.scene.Spatial;
 import com.jme3.texture.Image.Format;
 import com.jme3.texture.Texture.WrapMode;
 import com.jme3.texture.Texture2D;
+import com.jme3.util.TempVars;
 import java.io.IOException;
 
 /**
@@ -166,7 +167,16 @@ public class WaterFilter extends Filter {
                 sceneCam.getFrustumRight(),
                 sceneCam.getFrustumTop(),
                 sceneCam.getFrustumBottom());
-        reflectionCam.lookAt(targetLocation, Vector3f.UNIT_Y);
+        TempVars vars = TempVars.get();
+        assert vars.lock();
+
+        vars.vect1.set(sceneCam.getLocation()).addLocal(sceneCam.getUp());
+        float planeDistance = plane.pseudoDistance(vars.vect1);
+        vars.vect2.set(plane.getNormal()).multLocal(planeDistance * 2.0f);
+        vars.vect3.set(vars.vect1.subtractLocal(vars.vect2)).subtractLocal(loc).normalizeLocal().negateLocal();
+        reflectionCam.lookAt(targetLocation, vars.vect3);
+
+        assert vars.unlock();
         if (inv) {
             reflectionCam.setAxes(reflectionCam.getLeft().negateLocal(), reflectionCam.getUp(), reflectionCam.getDirection().negateLocal());
         }