Gets Harvey's changes

1 files changed, 1746 insertions, 0 deletions

diff --git a/src/javax/media/j3d/RenderingEnvironmentStructure.java b/src/javax/media/j3d/RenderingEnvironmentStructure.java
new file mode 100644
index 0000000..a7e55f2
--- /dev/null
+++ b/src/javax/media/j3d/RenderingEnvironmentStructure.java
@@ -0,0 +1,1746 @@
+/*
+ * Copyright 1999-2008 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+package javax.media.j3d;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+
+import javax.vecmath.Vector3d;
+
+/**
+ * A rendering environment structure is an object that organizes lights,
+ * fogs, backgrounds, clips, and model clips.
+ */
+
+class RenderingEnvironmentStructure extends J3dStructure implements ObjectUpdate {
+/**
+ * The list of light nodes
+ */
+ArrayList<LightRetained> nonViewScopedLights = new ArrayList<LightRetained>();
+HashMap<View, ArrayList<LightRetained>> viewScopedLights = new HashMap<View, ArrayList<LightRetained>>();
+int numberOfLights = 0;
+
+/**
+ * The list of fog nodes
+ */
+ArrayList<FogRetained> nonViewScopedFogs = new ArrayList<FogRetained>();
+HashMap<View, ArrayList<FogRetained>> viewScopedFogs = new HashMap<View, ArrayList<FogRetained>>();
+int numberOfFogs = 0;
+
+/**
+ * The list of alternate app nodes
+ */
+ArrayList<AlternateAppearanceRetained> nonViewScopedAltAppearances = new ArrayList<AlternateAppearanceRetained>();
+HashMap<View, ArrayList<AlternateAppearanceRetained>> viewScopedAltAppearances = new HashMap<View, ArrayList<AlternateAppearanceRetained>>();
+int numberOfAltApps = 0;
+
+/**
+ * The list of model clip nodes
+ */
+ArrayList<ModelClipRetained> nonViewScopedModelClips = new ArrayList<ModelClipRetained>();
+HashMap<View, ArrayList<ModelClipRetained>> viewScopedModelClips = new HashMap<View, ArrayList<ModelClipRetained>>();
+int numberOfModelClips = 0;
+
+/**
+ * The list of background nodes
+ */
+ArrayList<BackgroundRetained> nonViewScopedBackgrounds = new ArrayList<BackgroundRetained>();
+HashMap<View, ArrayList<BackgroundRetained>> viewScopedBackgrounds = new HashMap<View, ArrayList<BackgroundRetained>>();
+int numberOfBgs = 0;
+
+/**
+ * The list of clip nodes
+ */
+ArrayList<ClipRetained> nonViewScopedClips = new ArrayList<ClipRetained>();
+HashMap<View, ArrayList<ClipRetained>> viewScopedClips = new HashMap<View, ArrayList<ClipRetained>>();
+int numberOfClips = 0;
+
+    // For closest Background selection
+    BackgroundRetained[] intersectedBacks = new BackgroundRetained[1];
+
+
+    // For closest Clip selection
+    ClipRetained[] intersectedClips = new ClipRetained[1];
+
+    // For closest Background, Clip, Fog selection
+    Bounds[] intersectedBounds = new Bounds[1];
+
+    Transform3D localeXform = new Transform3D();
+    Vector3d localeTranslation = new Vector3d();
+
+    // For closest Fog selection
+    FogRetained[] intersectedFogs = new FogRetained[1];
+
+    // for closest alternate appearance selection
+    AlternateAppearanceRetained[] intersectedAltApps = new AlternateAppearanceRetained[1];
+
+    // For closest ModelClip selection
+    ModelClipRetained[] intersectedModelClips = new ModelClipRetained[1];
+
+
+    // Back clip distance in V world
+    double backClipDistance;
+
+// ArrayList of leafRetained object whose mirrorObjects
+// should be updated
+ArrayList<Object[]> objList = new ArrayList<Object[]>();
+
+// ArrayList of leafRetained object whose boundingleaf xform
+// should be updated
+ArrayList<LeafRetained> xformChangeList = new ArrayList<LeafRetained>();
+
+// freelist management of objects
+private final ArrayList<Object[]> objFreeList = new ArrayList<Object[]>();
+
+    LightRetained[] retlights = new LightRetained[5];
+
+    // variables used for processing transform messages
+    boolean transformMsg = false;
+    UpdateTargets targets = null;
+    ArrayList blUsers = null;
+
+    Integer ogInsert = new Integer(J3dMessage.ORDERED_GROUP_INSERTED);
+    Integer ogRemove = new Integer(J3dMessage.ORDERED_GROUP_REMOVED);
+
+    // Used to lock the intersectedBounds {used by fog, mclip etc}
+    // Can used intersectedBounds itself, since this may be realloced
+    Object lockObj = new Object();
+
+    /**
+     * Constructs a RenderingEnvironmentStructure object in the specified
+     * virtual universe.
+     */
+    RenderingEnvironmentStructure(VirtualUniverse u) {
+	super(u, J3dThread.UPDATE_RENDERING_ENVIRONMENT);
+    }
+
+
+/**
+ * Returns a object array of length 5 to save the 5 objects in the message list.
+ */
+Object[] getObjectArray() {
+	int size = objFreeList.size();
+	if (size == 0)
+		return new Object[5];
+
+	return objFreeList.remove(size - 1);
+}
+
+void addObjArrayToFreeList(Object[] objs) {
+	Arrays.fill(objs, null);
+	objFreeList.add(objs);
+}
+
+@Override
+public void updateObject() {
+	int size;
+
+	size = objList.size();
+	for (int i = 0; i < size; i++) {
+		Object[] args = objList.get(i);
+		LeafRetained leaf = (LeafRetained)args[0];
+		leaf.updateMirrorObject(args);
+		addObjArrayToFreeList(args);
+	}
+	objList.clear();
+
+	size = xformChangeList.size();
+	for (int i = 0; i < size; i++) {
+		xformChangeList.get(i).updateTransformChange();
+	}
+	xformChangeList.clear();
+}
+
+    @Override
+    void processMessages(long referenceTime) {
+	J3dMessage[] messages = getMessages(referenceTime);;
+	J3dMessage m;
+	int nMsg = getNumMessage();
+
+	if (nMsg <= 0) {
+	    return;
+	}
+
+	for (int i=0; i < nMsg; i++) {
+	    m = messages[i];
+
+	    switch (m.type) {
+	    case J3dMessage.INSERT_NODES:
+		insertNodes(m);
+		break;
+	    case J3dMessage.REMOVE_NODES:
+		removeNodes(m);
+		break;
+	    case J3dMessage.LIGHT_CHANGED:
+		updateLight(m.args);
+		break;
+	    case J3dMessage.BOUNDINGLEAF_CHANGED:
+		updateBoundingLeaf(m.args);
+		break;
+	    case J3dMessage.FOG_CHANGED:
+		updateFog(m.args);
+		break;
+	    case J3dMessage.ALTERNATEAPPEARANCE_CHANGED:
+		updateAltApp(m.args);
+		break;
+	    case J3dMessage.SHAPE3D_CHANGED:
+		updateShape3D(m.args);
+		break;
+	    case J3dMessage.ORIENTEDSHAPE3D_CHANGED:
+		updateOrientedShape3D(m.args);
+		break;
+	    case J3dMessage.MORPH_CHANGED:
+		updateMorph(m.args);
+		break;
+	    case J3dMessage.TRANSFORM_CHANGED:
+		transformMsg = true;
+		break;
+	    case J3dMessage.SWITCH_CHANGED:
+		processSwitchChanged(m);
+		// may need to process dirty switched-on transform
+		if (universe.transformStructure.getLazyUpdate()) {
+		    transformMsg = true;
+		}
+		break;
+	    case J3dMessage.MODELCLIP_CHANGED:
+		updateModelClip(m.args);
+		break;
+	    case J3dMessage.BACKGROUND_CHANGED:
+		updateBackground(m.args);
+		break;
+	    case J3dMessage.CLIP_CHANGED:
+		updateClip(m.args);
+		break;
+	    case J3dMessage.ORDERED_GROUP_INSERTED:
+		updateOrderedGroupInserted(m);
+		break;
+	    case J3dMessage.ORDERED_GROUP_REMOVED:
+		updateOrderedGroupsRemoved(m);
+		break;
+	    case J3dMessage.VIEWSPECIFICGROUP_CHANGED:
+		updateViewSpecificGroupChanged(m);
+		break;
+	    case J3dMessage.VIEWSPECIFICGROUP_INIT:
+		initViewSpecificInfo(m);
+		break;
+	    case J3dMessage.VIEWSPECIFICGROUP_CLEAR:
+		clearViewSpecificInfo(m);
+		break;
+	    }
+	    m.decRefcount();
+	}
+
+	if (transformMsg) {
+	    updateTransformChange();
+	    transformMsg = false;
+	}
+
+	VirtualUniverse.mc.addMirrorObject(this);
+
+	Arrays.fill(messages, 0, nMsg, null);
+    }
+
+    void updateOrderedGroupInserted(J3dMessage m) {
+	Object[] ogList = (Object[])m.args[0];
+	Object[] ogChildIdList = (Object[])m.args[1];
+	Object[] ogOrderedIdList = (Object[])m.args[2];
+	OrderedGroupRetained og;
+
+	for (int n = 0; n < ogList.length; n++) {
+	    og = (OrderedGroupRetained)ogList[n];
+	    og.updateChildIdTableInserted(((Integer) ogChildIdList[n]).intValue(),
+					  ((Integer) ogOrderedIdList[n]).intValue());
+	    og.incrChildCount();
+	}
+    }
+
+    void updateOrderedGroupsRemoved(J3dMessage m) {
+	Object[] ogList = (Object[])m.args[0];
+	Object[] ogChildIdList = (Object[])m.args[1];
+	OrderedGroupRetained og;
+
+	for (int n = 0; n < ogList.length; n++) {
+	    og = (OrderedGroupRetained)ogList[n];
+	    og.updateChildIdTableRemoved(((Integer) ogChildIdList[n]).intValue());
+	    og.decrChildCount();
+	}
+
+    }
+    /**
+     * This processes a switch change.
+     */
+    void processSwitchChanged(J3dMessage m) {
+        int i;
+        UnorderList arrList;
+        int size;
+        Object[] nodes, nodesArr;
+        LeafRetained leaf;
+
+        UpdateTargets targets = (UpdateTargets)m.args[0];
+
+        arrList = targets.targetList[Targets.BLN_TARGETS];
+        if (arrList != null) {
+            BoundingLeafRetained mbleaf;
+            Object[] objArr = (Object[])m.args[1];
+            Object[] obj;
+            size = arrList.size();
+            nodesArr = arrList.toArray(false);
+
+            for (int h=0; h<size; h++) {
+                nodes = (Object[])nodesArr[h];
+                obj = (Object[])objArr[h];
+
+                for (i=0; i<nodes.length; i++) {
+
+                    Object[] users = (Object[])obj[i];
+                    mbleaf = (BoundingLeafRetained)nodes[i];
+
+                    //mbleaf.switchState.updateCurrentSwitchOn();
+                    for (int j = 0; j < users.length; j++) {
+                        leaf = (LeafRetained)users[j];
+                        if (leaf instanceof FogRetained ||
+                            leaf instanceof LightRetained ||
+                            leaf instanceof ModelClipRetained ||
+                            leaf instanceof ClipRetained ||
+                            leaf instanceof AlternateAppearanceRetained ||
+                            leaf instanceof BackgroundRetained) {
+                            leaf.updateBoundingLeaf();
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    void insertNodes(J3dMessage m) {
+	Object[] nodes = (Object[])m.args[0];
+	ArrayList<NodeRetained> viewScopedNodes = (ArrayList<NodeRetained>)m.args[3];
+	ArrayList<ArrayList<View>> scopedNodesViewList = (ArrayList<ArrayList<View>>)m.args[4];
+	int i;
+
+	for (i=0; i<nodes.length; i++) {
+	    Object n = nodes[i];
+	    if (n instanceof LightRetained) {
+         LightRetained lt = (LightRetained)n;
+		numberOfLights++;
+
+		// If this particulat light is not scoped, added it
+		// to all the views
+		if (lt.inBackgroundGroup)
+		    lt.geometryBackground.lights.add(lt);
+		else
+		    nonViewScopedLights.add(lt);
+
+	    } else if (n instanceof FogRetained) {
+                FogRetained fg = (FogRetained)n;
+		numberOfFogs++;
+		// If the fog is scoped to a view , then ..
+
+		if (fg.inBackgroundGroup) {
+		    fg.geometryBackground.fogs.add(fg);
+		} else {
+		    nonViewScopedFogs.add(fg);
+		}
+
+
+	    } else if (n instanceof AlternateAppearanceRetained) {
+		AlternateAppearanceRetained altApp = (AlternateAppearanceRetained)n;
+
+		numberOfAltApps++;
+
+		nonViewScopedAltAppearances.add(altApp);
+
+	    } else if (n instanceof BackgroundRetained) {
+		BackgroundRetained bg = (BackgroundRetained)n;
+		numberOfBgs++;
+
+		nonViewScopedBackgrounds.add(bg);
+
+	    } else if (n instanceof ClipRetained) {
+		ClipRetained cl = (ClipRetained)n;
+		numberOfClips++;
+
+		nonViewScopedClips.add(cl);
+
+	    } else if (n instanceof ModelClipRetained) {
+		ModelClipRetained mc = (ModelClipRetained)n;
+		numberOfModelClips++;
+
+		nonViewScopedModelClips.add(mc);
+
+	    }
+
+	}
+
+
+	if (viewScopedNodes != null) {
+	    int size = viewScopedNodes.size();
+	    int vlsize;
+
+
+	    for (i = 0; i < size; i++) {
+		NodeRetained n = viewScopedNodes.get(i);
+		ArrayList<View> vl = scopedNodesViewList.get(i);
+			if (n instanceof LightRetained) {
+				LightRetained lt = (LightRetained) n;
+				lt.isViewScoped = true;
+				numberOfLights++;
+				vlsize = vl.size();
+				for (int k = 0; k < vlsize; k++) {
+					View view = vl.get(k);
+					ArrayList<LightRetained> list = viewScopedLights.get(view);
+					if (list == null) {
+						list = new ArrayList<LightRetained>();
+						viewScopedLights.put(view, list);
+					}
+					list.add(lt);
+				}
+			}
+			else if (n instanceof FogRetained) {
+				FogRetained ft = (FogRetained) n;
+				ft.isViewScoped = true;
+				numberOfFogs++;
+				vlsize = vl.size();
+				for (int k = 0; k < vlsize; k++) {
+					View view = vl.get(k);
+					ArrayList<FogRetained> list = viewScopedFogs.get(view);
+					if (list == null) {
+						list = new ArrayList<FogRetained>();
+						viewScopedFogs.put(view, list);
+					}
+					list.add(ft);
+				}
+			}
+			else if (n instanceof AlternateAppearanceRetained) {
+				AlternateAppearanceRetained aart = (AlternateAppearanceRetained) n;
+				aart.isViewScoped = true;
+				numberOfAltApps++;
+				vlsize = vl.size();
+				for (int k = 0; k < vlsize; k++) {
+					View view = vl.get(k);
+					ArrayList<AlternateAppearanceRetained> list = viewScopedAltAppearances
+							.get(view);
+					if (list == null) {
+						list = new ArrayList<AlternateAppearanceRetained>();
+						viewScopedAltAppearances.put(view, list);
+					}
+					list.add(aart);
+				}
+			}
+			else if (n instanceof BackgroundRetained) {
+				BackgroundRetained bt = (BackgroundRetained) n;
+				bt.isViewScoped = true;
+				numberOfBgs++;
+				vlsize = vl.size();
+				for (int k = 0; k < vlsize; k++) {
+					View view = vl.get(k);
+					ArrayList<BackgroundRetained> list = viewScopedBackgrounds
+							.get(view);
+					if (list == null) {
+						list = new ArrayList<BackgroundRetained>();
+						viewScopedBackgrounds.put(view, list);
+					}
+					list.add(bt);
+				}
+			}
+			else if (n instanceof ClipRetained) {
+				ClipRetained ct = (ClipRetained) n;
+				ct.isViewScoped = true;
+				numberOfClips++;
+				vlsize = vl.size();
+				for (int k = 0; k < vlsize; k++) {
+					View view = vl.get(k);
+					ArrayList<ClipRetained> list = viewScopedClips.get(view);
+					if (list == null) {
+						list = new ArrayList<ClipRetained>();
+						viewScopedClips.put(view, list);
+					}
+					list.add(ct);
+				}
+		} else if (n instanceof ModelClipRetained) {
+			ModelClipRetained mt = (ModelClipRetained)n;
+		    mt.isViewScoped = true;
+		    numberOfModelClips++;
+		    vlsize = vl.size();
+		    for (int k = 0; k < vlsize; k++) {
+			View view = vl.get(k);
+			ArrayList<ModelClipRetained> list = viewScopedModelClips.get(view);
+			if (list == null) {
+			    list = new ArrayList<ModelClipRetained>();
+			    viewScopedModelClips.put(view, list);
+			}
+			list.add(mt);
+		    }
+		}
+	    }
+
+	}
+	if (numberOfLights > retlights.length)
+	    retlights = new LightRetained[numberOfLights];
+	if (intersectedFogs.length < numberOfFogs)
+	    intersectedFogs = new FogRetained[numberOfFogs];
+	if (intersectedAltApps.length < numberOfAltApps)
+	    intersectedAltApps = new AlternateAppearanceRetained[numberOfAltApps];
+	if (intersectedBacks.length < numberOfBgs)
+	    intersectedBacks = new BackgroundRetained[numberOfBgs];
+	if (intersectedClips.length < numberOfClips)
+	    intersectedClips = new ClipRetained[numberOfClips];
+	if (intersectedModelClips.length < numberOfModelClips)
+	    intersectedModelClips = new ModelClipRetained[numberOfModelClips];
+    }
+
+    @Override
+    void removeNodes(J3dMessage m) {
+	Object[] nodes = (Object[])m.args[0];
+	ArrayList<NodeRetained> viewScopedNodes = (ArrayList<NodeRetained>)m.args[3];
+	ArrayList<ArrayList<View>> scopedNodesViewList = (ArrayList<ArrayList<View>>)m.args[4];
+        int i;
+	GeometryAtom ga;
+	LeafRetained oldsrc = null;
+
+	// System.err.println("RE : removeNodes message " + m);
+	// System.err.println("RE : removeNodes m.args[0] " + m.args[0]);
+
+	for (i=0; i<nodes.length; i++) {
+	    Object n = nodes[i];
+	    if (n instanceof LightRetained) {
+		LightRetained lt = (LightRetained)n;
+		if (lt.inBackgroundGroup) {
+		    lt.geometryBackground.lights.remove(lt);
+		}
+		else {
+		    nonViewScopedLights.remove(lt);
+		}
+
+		numberOfLights--;
+	    } else if (n instanceof FogRetained) {
+		numberOfFogs--;
+                FogRetained fg = (FogRetained)n;
+		if (fg.inBackgroundGroup) {
+		    fg.geometryBackground.fogs.remove(fg);
+		} else {
+		    nonViewScopedFogs.remove(nonViewScopedFogs.indexOf(n));
+		}
+	    } else if (n instanceof  AlternateAppearanceRetained) {
+		numberOfAltApps--;
+	        nonViewScopedAltAppearances.remove(nonViewScopedAltAppearances.indexOf(n));
+	    }else if (n instanceof BackgroundRetained) {
+		numberOfBgs--;
+	        nonViewScopedBackgrounds.remove(nonViewScopedBackgrounds.indexOf(n));
+	    } else if (n instanceof ClipRetained) {
+		numberOfClips--;
+	        nonViewScopedClips.remove(nonViewScopedClips.indexOf(n));
+	    } else if (n instanceof ModelClipRetained) {
+		ModelClipRetained mc = (ModelClipRetained)n;
+		numberOfModelClips--;
+		nonViewScopedModelClips.remove(mc);
+
+	    }
+	    else if (n instanceof GeometryAtom) {
+		ga = (GeometryAtom)n;
+		// Check that we have not already cleared the mirrorobject
+		// since mant geometry atoms could be generated for one
+		// mirror shape
+		if (ga.source != oldsrc) {
+		    ga.source.clearMirrorShape();
+		    oldsrc = ga.source;
+		}
+	    }
+	    else if (n instanceof OrderedGroupRetained) {
+		// Clear the orderedBins for this orderedGroup
+		((OrderedGroupRetained)n).clearDerivedDataStructures();
+	    }
+	}
+	if (viewScopedNodes != null) {
+	    int size = viewScopedNodes.size();
+	    int vlsize;
+	    for (i = 0; i < size; i++) {
+		NodeRetained n = viewScopedNodes.get(i);
+		ArrayList<View> vl = scopedNodesViewList.get(i);
+			if (n instanceof LightRetained) {
+				LightRetained lt = (LightRetained) n;
+				lt.isViewScoped = false;
+				numberOfLights--;
+				vlsize = vl.size();
+				for (int k = 0; k < vlsize; k++) {
+					View view = vl.get(k);
+					ArrayList<LightRetained> list = viewScopedLights.get(view);
+					list.remove(lt);
+					if (list.size() == 0) {
+						viewScopedLights.remove(view);
+					}
+				}
+			}
+			else if (n instanceof FogRetained) {
+				FogRetained ft = (FogRetained)n;
+				ft.isViewScoped = false;
+				numberOfFogs--;
+				vlsize = vl.size();
+				for (int k = 0; k < vlsize; k++) {
+					View view = vl.get(k);
+					ArrayList<FogRetained> list = viewScopedFogs.get(view);
+					list.remove(ft);
+					if (list.size() == 0) {
+						viewScopedFogs.remove(view);
+					}
+				}
+			} else if (n instanceof AlternateAppearanceRetained) {
+				AlternateAppearanceRetained aart = (AlternateAppearanceRetained) n;
+				aart.isViewScoped = false;
+				numberOfAltApps--;
+				vlsize = vl.size();
+				for (int k = 0; k < vlsize; k++) {
+					View view = vl.get(k);
+					ArrayList<AlternateAppearanceRetained> list = viewScopedAltAppearances
+							.get(view);
+					list.remove(aart);
+					if (list.size() == 0) {
+						viewScopedAltAppearances.remove(view);
+					}
+				}
+			}
+			else if (n instanceof BackgroundRetained) {
+				BackgroundRetained bt = (BackgroundRetained)n;
+				bt.isViewScoped = false;
+				numberOfBgs--;
+				vlsize = vl.size();
+				for (int k = 0; k < vlsize; k++) {
+					View view = vl.get(k);
+					ArrayList<BackgroundRetained> list = viewScopedBackgrounds.get(view);
+					list.remove(bt);
+					if (list.size() == 0) {
+						viewScopedBackgrounds.remove(view);
+					}
+				}
+			}
+			else if (n instanceof ClipRetained) {
+				ClipRetained ct = (ClipRetained) n;
+				ct.isViewScoped = false;
+				numberOfClips--;
+				vlsize = vl.size();
+				for (int k = 0; k < vlsize; k++) {
+					View view = vl.get(k);
+					ArrayList<ClipRetained> list = viewScopedClips.get(view);
+					list.remove(ct);
+					if (list.size() == 0) {
+						viewScopedClips.remove(view);
+					}
+				}
+		} else if (n instanceof ModelClipRetained) {
+			ModelClipRetained mt = (ModelClipRetained)n;
+		    mt.isViewScoped = false;
+		    numberOfModelClips--;
+		    vlsize = vl.size();
+		    for (int k = 0; k < vlsize; k++) {
+			View view = vl.get(k);
+			ArrayList<ModelClipRetained> list = viewScopedModelClips.get(view);
+			list.remove(mt);
+			if (list.size() == 0) {
+			    viewScopedModelClips.remove(view);
+			}
+		    }
+		}
+	    }
+
+	}
+    }
+
+    LightRetained[] getInfluencingLights(RenderAtom ra, View view) {
+	LightRetained[] lightAry = null;
+	int i, j;
+
+	// Need to lock retlights, since on a multi-processor
+	// system with 2 views on a single universe, there might
+	// be councurrent access
+	synchronized (retlights) {
+		ArrayList<LightRetained> globalLights;
+		int numLights = 0;
+		if (ra.geometryAtom.source.inBackgroundGroup) {
+			globalLights = ra.geometryAtom.source.geometryBackground.lights;
+			numLights = processLights(globalLights, ra, numLights);
+		}
+		else {
+			if ((globalLights = viewScopedLights.get(view)) != null) {
+				numLights = processLights(globalLights, ra, numLights);
+			}
+			// now process the common lights
+			numLights = processLights(nonViewScopedLights, ra, numLights);
+		}
+
+	    boolean newLights = false;
+	    if (ra.lights != null && ra.lights.length == numLights) {
+		for (i=0; i<ra.lights.length; i++) {
+		    for (j=0; j<numLights; j++) {
+			if (ra.lights[i] == retlights[j]) {
+			    break;
+			}
+		    }
+		    if (j==numLights) {
+			newLights = true;
+			break;
+		    }
+		}
+	    } else {
+		newLights = true;
+	    }
+	    if (newLights) {
+		lightAry = new LightRetained[numLights];
+		for (i = 0; i < numLights; i++) {
+		    lightAry[i] = retlights[i];
+		}
+		return (lightAry);
+	    } else {
+		return(ra.lights);
+	    }
+	}
+    }
+
+// Called while holding the retlights lock
+private int processLights(ArrayList<LightRetained> globalLights, RenderAtom ra, int numLights) {
+	LightRetained[] shapeScopedLt;
+        Bounds bounds;
+	int i, j, n;
+        bounds = ra.localeVwcBounds;
+	int size = globalLights.size();
+
+	if (size > 0) {
+	    for (i=0; i<size; i++) {
+			LightRetained light = globalLights.get(i);
+		//		System.err.println("vwcBounds = "+bounds);
+		//		System.err.println("light.region = "+light.region);
+		//		System.err.println("Intersected = "+bounds.intersect(light.region));
+		//		System.err.println("");
+
+		//		    if ((light.viewList != null && light.viewList.contains(view)) &&
+		// Treat lights in background geo as having infinite bounds
+		if (light.lightOn && light.switchState.currentSwitchOn &&
+		    (ra.geometryAtom.source.inBackgroundGroup || bounds.intersect(light.region))){
+		    // Get the mirror Shape3D node
+		    n = ra.geometryAtom.source.numlights;
+		    shapeScopedLt = ra.geometryAtom.source.lights;
+
+		    // System.err.println("numLights per shape= "+n);
+		    // scoped Fog/light is kept in the original
+		    // shape3D node, what happens if this list changes
+		    // while accessing them?. So, Lock.
+		    if (light.isScoped) {
+			for (j = 0; j < n; j++) {
+			    // then check if the light is scoped to
+			    // this group
+			    if (light == shapeScopedLt[j]) {
+				retlights[numLights++] = light;
+				break;
+			    }
+			}
+		    }
+		    else {
+			retlights[numLights++] = light;
+		    }
+		}
+	    }
+	}
+	return numLights;
+
+    }
+
+FogRetained getInfluencingFog(RenderAtom ra, View view) {
+	FogRetained fog = null;
+	int j, nfogs;
+	Bounds closestBounds;
+
+	// Need to lock lockObj, since on a multi-processor
+	// system with 2 views on a single universe, there might
+	// be councurrent access
+	synchronized(lockObj) {
+	    nfogs = 0;
+	    Bounds bounds = ra.localeVwcBounds;
+
+	    if (intersectedBounds.length < numberOfFogs)
+		intersectedBounds = new Bounds[numberOfFogs];
+
+	    ArrayList<FogRetained> globalFogs;
+		if (ra.geometryAtom.source.inBackgroundGroup) {
+			globalFogs = ra.geometryAtom.source.geometryBackground.fogs;
+			nfogs = processFogs(globalFogs, ra, nfogs);
+			// If background, then nfogs > 1, take the first one
+			if (nfogs >= 1)
+				fog = intersectedFogs[0];
+
+		}
+		else {
+			if ((globalFogs = viewScopedFogs.get(view)) != null) {
+				nfogs = processFogs(globalFogs, ra, nfogs);
+			}
+		// now process the common fogs
+		nfogs = processFogs(nonViewScopedFogs, ra, nfogs);
+
+
+		if (nfogs == 1)
+		    fog = intersectedFogs[0];
+
+		else if (nfogs > 1) {
+		    closestBounds = bounds.closestIntersection(intersectedBounds);
+		    for (j= 0; j < nfogs; j++) {
+			if (intersectedBounds[j] == closestBounds) {
+			    fog = intersectedFogs[j];
+			    break;
+			}
+		    }
+		}
+	    }
+	    return (fog);
+	}
+    }
+
+    // Called while holding lockObj lock
+    int processFogs(ArrayList<FogRetained> globalFogs, RenderAtom ra, int numFogs) {
+	int size = globalFogs.size();
+	FogRetained fog;
+	int i, k, n;
+        Bounds bounds = ra.localeVwcBounds;
+	FogRetained[] shapeScopedFog;
+
+	if (globalFogs.size() > 0) {
+	    for (i = 0 ; i < size; i++) {
+		fog = globalFogs.get(i);
+		// Note : There is no enable check for fog
+		if (fog.region != null && fog.switchState.currentSwitchOn &&
+		    (ra.geometryAtom.source.inBackgroundGroup || fog.region.intersect(bounds))) {
+		    n = ra.geometryAtom.source.numfogs;
+		    shapeScopedFog = ra.geometryAtom.source.fogs;
+
+		    if (fog.isScoped) {
+			for (k = 0; k < n; k++) {
+			    // then check if the Fog is scoped to
+			    // this group
+			    if (fog == shapeScopedFog[k]) {
+				intersectedBounds[numFogs] = fog.region;
+				intersectedFogs[numFogs++] = fog;
+				break;
+			    }
+			}
+		    }
+		    else {
+			intersectedBounds[numFogs] = fog.region;
+			intersectedFogs[numFogs++] = fog;
+		    }
+		}
+	    }
+	}
+	return numFogs;
+    }
+
+ModelClipRetained getInfluencingModelClip(RenderAtom ra, View view) {
+	if (ra.geometryAtom.source.inBackgroundGroup)
+		return null;
+
+	// Need to lock lockObj, since on a multi-processor
+	// system with 2 views on a single universe, there might
+	// be councurrent access
+	synchronized (lockObj) {
+		Bounds bounds = ra.localeVwcBounds;
+		int nModelClips = 0;
+		if (intersectedBounds.length < numberOfModelClips)
+			intersectedBounds = new Bounds[numberOfModelClips];
+
+		ArrayList<ModelClipRetained> globalModelClips = viewScopedModelClips.get(view);
+		if (globalModelClips  != null)
+			nModelClips = processModelClips(globalModelClips, ra, nModelClips);
+
+		// now process the common clips
+		nModelClips = processModelClips(nonViewScopedModelClips, ra, nModelClips);
+
+		ModelClipRetained modelClip = null;
+		if (nModelClips == 1)
+			modelClip = intersectedModelClips[0];
+		else if (nModelClips > 1) {
+			Bounds closestBounds = bounds.closestIntersection(intersectedBounds);
+			for (int j = 0; j < nModelClips; j++) {
+				if (intersectedBounds[j] == closestBounds) {
+					modelClip = intersectedModelClips[j];
+					break;
+				}
+			}
+		}
+		return modelClip;
+	}
+}
+
+int processModelClips(ArrayList<ModelClipRetained> globalModelClips, RenderAtom ra, int nModelClips) {
+    	int size = globalModelClips.size();
+	int i, k, n;
+	ModelClipRetained modelClip;
+        Bounds bounds = ra.localeVwcBounds;
+	ModelClipRetained[] shapeScopedModelClip;
+
+	if (size > 0) {
+	    for (i = 0; i < size; i++) {
+		modelClip = globalModelClips.get(i);
+		if (modelClip.enableFlag == true &&
+		    modelClip.region != null && modelClip.switchState.currentSwitchOn) {
+		    if (modelClip.region.intersect(bounds) == true) {
+			n = ra.geometryAtom.source.numModelClips;
+			shapeScopedModelClip = ra.geometryAtom.source.modelClips;
+
+			if (modelClip.isScoped) {
+			    for (k = 0; k < n; k++) {
+				// then check if the modelClip is scoped to
+				// this group
+				if (shapeScopedModelClip[k] == modelClip) {
+
+				    intersectedBounds[nModelClips] = modelClip.region;
+				    intersectedModelClips[nModelClips++] = modelClip;
+				    break;
+				}
+			    }
+			}
+			else {
+			    intersectedBounds[nModelClips] = modelClip.region;
+			    intersectedModelClips[nModelClips++] = modelClip;
+			}
+		    }
+		}
+	    }
+	}
+	return nModelClips;
+    }
+
+    BackgroundRetained getApplicationBackground(BoundingSphere bounds, Locale viewLocale, View view) {
+	BackgroundRetained bg = null;
+	Bounds closestBounds;
+	int j = 0;
+	int nbacks;
+
+	// Need to lock lockObj, since on a multi-processor
+	// system with 2 views on a single universe, there might
+	// be councurrent access
+	synchronized(lockObj) {
+	    nbacks = 0;
+	    if (intersectedBounds.length < numberOfBgs)
+		intersectedBounds = new Bounds[numberOfBgs];
+
+
+		ArrayList<BackgroundRetained> globalBgs = viewScopedBackgrounds.get(view);
+		if (globalBgs != null)
+			nbacks = processBgs(globalBgs, bounds, nbacks, viewLocale);
+
+		nbacks = processBgs(nonViewScopedBackgrounds, bounds, nbacks, viewLocale);
+
+	    // If there are no intersections, set to black.
+	    if (nbacks == 1) {
+		bg = intersectedBacks[0];
+	    } else  if (nbacks > 1) {
+		closestBounds =
+		    bounds.closestIntersection(intersectedBounds);
+		for (j=0; j<nbacks; j++) {
+		    if (intersectedBounds[j] == closestBounds) {
+			bg = intersectedBacks[j];
+			//System.err.println("matched " + closestBounds);
+			break;
+		    }
+		}
+	    }
+	    return (bg);
+	}
+    }
+
+
+// Called while holding lockObj lock
+int processBgs(ArrayList<BackgroundRetained> globalBgs, BoundingSphere bounds, int nbacks, Locale viewLocale) {
+	int size = globalBgs.size();
+
+	for (int i = 0; i < size; i++) {
+		BackgroundRetained back = globalBgs.get(i);
+		if (back.transformedRegion == null || !back.switchState.currentSwitchOn)
+			continue;
+
+		if (back.cachedLocale != viewLocale) {
+			Bounds localeBounds = (Bounds)back.transformedRegion.clone();
+			// Translate the transformed region
+			back.cachedLocale.hiRes.difference(viewLocale.hiRes, localeTranslation);
+			localeXform.setIdentity();
+			localeXform.setTranslation(localeTranslation);
+			localeBounds.transform(localeXform);
+			if (localeBounds.intersect(bounds) == true) {
+				intersectedBounds[nbacks] = localeBounds;
+				intersectedBacks[nbacks++] = back;
+			}
+		}
+		else {
+			if (back.transformedRegion.intersect(bounds) == true) {
+				intersectedBounds[nbacks] = back.transformedRegion;
+				intersectedBacks[nbacks++] = back;
+			}
+		}
+	}
+	return nbacks;
+}
+
+    double[] backClipDistanceInVworld (BoundingSphere bounds, View view) {
+	int j;
+        Bounds closestBounds;
+	boolean backClipActive;
+	double[] backClipDistance;
+	double distance;
+
+	// Need to lock intersectedBounds, since on a multi-processor
+	// system with 2 views on a single universe, there might
+	// be councurrent access
+	synchronized(lockObj) {
+	    backClipDistance = null;
+	    backClipActive = false;
+		int nclips = 0;
+	    distance = 0.0;
+	    if (intersectedBounds.length < numberOfClips)
+		intersectedBounds = new Bounds[numberOfClips];
+
+		ArrayList<ClipRetained> globalClips = viewScopedClips.get(view);
+		if (globalClips != null)
+			nclips = processClips(globalClips, bounds, nclips);
+
+		nclips = processClips(nonViewScopedClips, bounds, nclips);
+
+
+	    if (nclips == 1)  {
+		distance = intersectedClips[0].backDistanceInVworld;
+		backClipActive = true;
+	    } else if (nclips > 1) {
+		closestBounds =
+		    bounds.closestIntersection(intersectedBounds);
+		for (j=0; j < nclips; j++) {
+		    if (intersectedBounds[j] == closestBounds) {
+			distance = intersectedClips[j].backDistanceInVworld;
+			backClipActive = true;
+			break;
+		    }
+		}
+	    }
+	    if (backClipActive) {
+		backClipDistance = new double[1];
+		backClipDistance[0] = distance;
+	    }
+	    return (backClipDistance);
+	}
+    }
+
+int processClips(ArrayList<ClipRetained> globalClips, BoundingSphere bounds, int nclips) {
+	int size = globalClips.size();
+
+	for (int i = 0; i < size; i++) {
+		ClipRetained clip = globalClips.get(i);
+		if (clip.transformedRegion != null &&
+		    clip.transformedRegion.intersect(bounds) == true &&
+		    clip.switchState.currentSwitchOn) {
+			intersectedBounds[nclips] = clip.transformedRegion;
+			intersectedClips[nclips++] = clip;
+		}
+	}
+	return nclips;
+}
+
+
+    void updateLight(Object[] args) {
+	Object[] objs;
+	LightRetained light = (LightRetained)args[0];
+	int component = ((Integer)args[1]).intValue();
+	// Store the value to be updated during object update
+	// If its an ambient light, then if color changed, update immediately
+	if ((component & (LightRetained.INIT_MIRROR)) != 0) {
+	    light.initMirrorObject(args);
+	}
+
+	if (light instanceof AmbientLightRetained &&
+	    ((component & LightRetained.COLOR_CHANGED) != 0)) {
+	    light.updateImmediateMirrorObject(args);
+	}
+	else if ((component & (LightRetained.COLOR_CHANGED|
+			       LightRetained.INIT_MIRROR |
+			  PointLightRetained.POSITION_CHANGED |
+			  PointLightRetained.ATTENUATION_CHANGED|
+			  DirectionalLightRetained.DIRECTION_CHANGED |
+			  SpotLightRetained.DIRECTION_CHANGED |
+			  SpotLightRetained.CONCENTRATION_CHANGED |
+			  SpotLightRetained.ANGLE_CHANGED)) != 0) {
+	    objs = getObjectArray();
+	    objs[0] = args[0];
+	    objs[1] = args[1];
+	    objs[2] = args[2];
+	    objs[3] = args[3];
+	    objs[4] = args[4];
+
+	    objList.add(objs);
+	}
+	else if ((component & LightRetained.CLEAR_MIRROR) != 0) {
+	    light.clearMirrorObject(args);
+	}
+	else  {
+	    light.updateImmediateMirrorObject(args);
+	}
+
+
+
+    }
+
+    void updateBackground(Object[] args) {
+	BackgroundRetained bg = (BackgroundRetained)args[0];
+	bg.updateImmediateMirrorObject(args);
+    }
+
+    void updateFog(Object[] args) {
+	Object[] objs;
+	FogRetained fog = (FogRetained)args[0];
+	int component = ((Integer)args[1]).intValue();
+	if ((component & FogRetained.INIT_MIRROR) != 0) {
+	    fog.initMirrorObject(args);
+	    // Color, distance et all should be updated when renderer
+	    // is not running ..
+	    objs = getObjectArray();
+	    objs[0] = args[0];
+	    objs[1] = args[1];
+	    objs[2] = args[2];
+	    objs[3] = args[3];
+	    objs[4] = args[4];
+	    objList.add(objs);
+	}
+	else if ((component & FogRetained.CLEAR_MIRROR) != 0) {
+	    fog.clearMirrorObject(args);
+	// Store the value to be updated during object update
+	} else if ((component & (FogRetained.COLOR_CHANGED |
+			  LinearFogRetained.FRONT_DISTANCE_CHANGED|
+			  LinearFogRetained.BACK_DISTANCE_CHANGED |
+			  ExponentialFogRetained.DENSITY_CHANGED)) != 0) {
+	    objs = getObjectArray();
+	    objs[0] = args[0];
+	    objs[1] = args[1];
+	    objs[2] = args[2];
+	    objs[3] = args[3];
+	    objs[4] = args[4];
+	    objList.add(objs);
+	}
+	else {
+	    fog.updateImmediateMirrorObject(args);
+	}
+
+
+    }
+
+    void updateAltApp(Object[] args) {
+	AlternateAppearanceRetained altApp = (AlternateAppearanceRetained)args[0];
+	int component = ((Integer)args[1]).intValue();
+	if ((component & AlternateAppearanceRetained.INIT_MIRROR) != 0) {
+	    AlternateAppearanceRetained altapp = (AlternateAppearanceRetained)args[0];
+	    altapp.initMirrorObject(args);
+	}
+	else if ((component & AlternateAppearanceRetained.CLEAR_MIRROR) != 0) {
+	    AlternateAppearanceRetained altapp = (AlternateAppearanceRetained)args[0];
+	    altapp.clearMirrorObject(args);
+	}
+	else {
+	    altApp.updateImmediateMirrorObject(args);
+	}
+
+
+    }
+
+    void updateClip(Object[] args) {
+	ClipRetained clip = (ClipRetained)args[0];
+	clip.updateImmediateMirrorObject(args);
+    }
+
+    void updateModelClip(Object[] args) {
+	ModelClipRetained modelClip = (ModelClipRetained)args[0];
+	Object[] objs;
+	int component = ((Integer)args[1]).intValue();
+
+	if ((component & ModelClipRetained.INIT_MIRROR) != 0) {
+	    modelClip.initMirrorObject(args);
+	}
+	if ((component & ModelClipRetained.CLEAR_MIRROR) != 0) {
+	    modelClip.clearMirrorObject(args);
+	}
+	else if ((component & (ModelClipRetained.PLANES_CHANGED |
+			  ModelClipRetained.INIT_MIRROR |
+			  ModelClipRetained.PLANE_CHANGED)) != 0) {
+	    objs = getObjectArray();
+	    objs[0] = args[0];
+	    objs[1] = args[1];
+	    objs[2] = args[2];
+	    objs[3] = args[3];
+	    objs[4] = args[4];
+	    objList.add(objs);
+	}
+	else {
+	    modelClip.updateImmediateMirrorObject(args);
+	}
+
+    }
+
+    void updateBoundingLeaf(Object[] args) {
+	BoundingLeafRetained bl = (BoundingLeafRetained)args[0];
+	Object[] users = (Object[])(args[3]);
+	bl.updateImmediateMirrorObject(args);
+	// Now update all users of this bounding leaf object
+	for (int i = 0; i < users.length; i++) {
+	    LeafRetained mLeaf = (LeafRetained)users[i];
+	    mLeaf.updateBoundingLeaf();
+	}
+    }
+
+    void updateShape3D(Object[] args) {
+	Shape3DRetained shape = (Shape3DRetained)args[0];
+	shape.updateImmediateMirrorObject(args);
+    }
+
+    void updateOrientedShape3D(Object[] args) {
+	OrientedShape3DRetained shape = (OrientedShape3DRetained)args[4];
+	shape.updateImmediateMirrorObject(args);
+    }
+
+    void updateMorph(Object[] args) {
+	MorphRetained morph = (MorphRetained)args[0];
+	morph.updateImmediateMirrorObject(args);
+    }
+
+
+    void updateTransformChange() {
+	int i,j;
+ 	Object[] nodes, nodesArr;
+	BoundingLeafRetained bl;
+        UnorderList arrList;
+        int size;
+
+	targets = universe.transformStructure.getTargetList();
+	blUsers = universe.transformStructure.getBlUsers();
+
+        // process misc environment nodes
+        arrList = targets.targetList[Targets.ENV_TARGETS];
+        if (arrList != null) {
+            size = arrList.size();
+            nodesArr = arrList.toArray(false);
+
+            for (j = 0; j < size; j++) {
+                nodes = (Object[])nodesArr[j];
+
+                for (i = 0; i < nodes.length; i++) {
+	    	    if (nodes[i] instanceof LightRetained) {
+			LightRetained ml = (LightRetained)nodes[i];
+			ml.updateImmediateTransformChange();
+			xformChangeList.add(ml);
+
+	    	    } else if (nodes[i] instanceof FogRetained) {
+			FogRetained mfog = (FogRetained) nodes[i];
+			mfog.updateImmediateTransformChange();
+			xformChangeList.add(mfog);
+
+	    	    } else if (nodes[i] instanceof AlternateAppearanceRetained){
+			AlternateAppearanceRetained mAltApp =
+					(AlternateAppearanceRetained) nodes[i];
+			mAltApp.updateImmediateTransformChange();
+			xformChangeList.add(mAltApp);
+
+	    	    } else if (nodes[i] instanceof BackgroundRetained) {
+                	BackgroundRetained bg = (BackgroundRetained) nodes[i];
+                	bg.updateImmediateTransformChange();
+
+            	    } else if (nodes[i] instanceof ModelClipRetained) {
+			ModelClipRetained mc = (ModelClipRetained) nodes[i];
+			mc.updateImmediateTransformChange();
+                    }
+                }
+            }
+        }
+
+        // process BoundingLeaf nodes
+        arrList = targets.targetList[Targets.BLN_TARGETS];
+        if (arrList != null) {
+            size = arrList.size();
+            nodesArr = arrList.toArray(false);
+            for (j = 0; j < size; j++) {
+                nodes = (Object[])nodesArr[j];
+                for (i = 0; i < nodes.length; i++) {
+                    bl = (BoundingLeafRetained)nodes[i];
+                    bl.updateImmediateTransformChange();
+                }
+            }
+        }
+
+	// Now notify the list of all users of bounding leaves
+	// to update its boundingleaf transformed region
+	if (blUsers != null) {
+	    for (i = 0; i < blUsers.size(); i++) {
+		LeafRetained leaf = (LeafRetained) blUsers.get(i);
+		leaf.updateBoundingLeaf();
+	    }
+	}
+	targets = null;
+	blUsers = null;
+    }
+
+
+    // The first element is TRUE, if alternate app is in effect
+    // The second element return the appearance that should be used
+    // Note , I can't just return null for app, then I don't know
+    // if the appearance is null or if the alternate app in not
+    // in effect
+    Object[]  getInfluencingAppearance(RenderAtom ra, View view) {
+	int j;
+	Bounds closestBounds;
+        Bounds bounds;
+	Object[] retVal;
+	retVal = new Object[2];
+
+	if (ra.geometryAtom.source.inBackgroundGroup) {
+	    retVal[0] = Boolean.FALSE;
+	    return retVal;
+	}
+
+	// Need to lock lockObj, since on a multi-processor
+	// system with 2 views on a single universe, there might
+	// be councurrent access
+	synchronized(lockObj) {
+	    int nAltApp = 0;
+	    bounds = ra.localeVwcBounds;
+
+	    if (intersectedBounds.length < numberOfAltApps)
+		intersectedBounds = new Bounds[numberOfAltApps];
+
+		ArrayList<AlternateAppearanceRetained> globalAltApps = viewScopedAltAppearances.get(view);
+		if (globalAltApps != null)
+			nAltApp = processAltApps(globalAltApps, ra, nAltApp);
+
+		nAltApp = processAltApps(nonViewScopedAltAppearances, ra, nAltApp);
+		AlternateAppearanceRetained altApp = null;
+	    if (nAltApp == 1)
+		altApp = intersectedAltApps[0];
+	    else if (nAltApp > 1) {
+		closestBounds = bounds.closestIntersection(intersectedBounds);
+		for (j= 0; j < nAltApp; j++) {
+		    if (intersectedBounds[j] == closestBounds) {
+			altApp = intersectedAltApps[j];
+			break;
+		    }
+		}
+	    }
+	    if (altApp == null) {
+		retVal[0] = Boolean.FALSE;
+		return retVal;
+	    } else {
+		retVal[0] = Boolean.TRUE;
+		retVal[1] = altApp.appearance;
+		return retVal;
+	    }
+	}
+    }
+
+// Called while holding lockObj lock
+int processAltApps(ArrayList<AlternateAppearanceRetained> globalAltApps, RenderAtom ra, int nAltApp) {
+	int size = globalAltApps.size();
+	Bounds bounds = ra.localeVwcBounds;
+	AlternateAppearanceRetained[] shapeScopedAltApp;
+
+	if (size == 0)
+		return nAltApp;
+
+	for (int i = 0; i < size; i++) {
+		AlternateAppearanceRetained altApp = globalAltApps.get(i);
+		// System.err.println("altApp.region = "+altApp.region+" altApp.switchState.currentSwitchOn = "+altApp.switchState.currentSwitchOn+" intersect = "+altApp.region.intersect(ra.geometryAtom.vwcBounds));
+		// System.err.println("altApp.isScoped = "+altApp.isScoped);
+		// Note : There is no enable check for fog
+		if (altApp.region == null || !altApp.switchState.currentSwitchOn)
+			continue;
+
+		if (altApp.region.intersect(bounds) == true) {
+			int n = ra.geometryAtom.source.numAltApps;
+			shapeScopedAltApp = ra.geometryAtom.source.altApps;
+			if (altApp.isScoped) {
+				for (int k = 0; k < n; k++) {
+					// then check if the light is scoped to
+					// this group
+					if (altApp == shapeScopedAltApp[k]) {
+
+						intersectedBounds[nAltApp] = altApp.region;
+						intersectedAltApps[nAltApp++] = altApp;
+						break;
+					}
+				}
+			}
+			else {
+				intersectedBounds[nAltApp] = altApp.region;
+				intersectedAltApps[nAltApp++] = altApp;
+			}
+		}
+	}
+
+	return nAltApp;
+}
+
+    void initViewSpecificInfo(J3dMessage m) {
+	int[] keys = (int[])m.args[2];
+	ArrayList<ArrayList<View>> vlists = (ArrayList<ArrayList<View>>)m.args[1];
+	ArrayList<ViewSpecificGroupRetained> vsgs = (ArrayList<ViewSpecificGroupRetained>)m.args[0];
+	if (vsgs != null) {
+	    //	    System.err.println("===> non null Vsg");
+	    int size = vsgs.size();
+	    for (int i = 0; i < size; i++) {
+		ViewSpecificGroupRetained v = vsgs.get(i);
+		ArrayList<View> l = vlists.get(i);
+		int index = keys[i];
+		//		System.err.println("v = "+v+" index = "+index+" l = "+l);
+		v.cachedViewList.add(index, l);
+		/*
+		for (int k = 0; k <  v.cachedViewList.size(); k++) {
+		    System.err.println("v = "+v+" k = "+k+" v.cachedViewList.get(k) = "+v.cachedViewList.get(k));
+		}
+		*/
+	    }
+	}
+    }
+
+    void clearViewSpecificInfo(J3dMessage m) {
+	int[] keys = (int[])m.args[1];
+	ArrayList<ViewSpecificGroupRetained> vsgs = (ArrayList<ViewSpecificGroupRetained>)m.args[0];
+	if (vsgs != null) {
+	    int size = vsgs.size();
+	    for (int i = 0; i < size; i++) {
+		ViewSpecificGroupRetained v = vsgs.get(i);
+		int index = keys[i];
+			if (index == -1) {
+				int csize = v.cachedViewList.size();
+				for (int j = 0; j < csize; j++) {
+					v.cachedViewList.get(j).clear();
+				}
+				v.cachedViewList.clear();
+			}
+			else {
+				v.cachedViewList.remove(index).clear();
+			}
+	    }
+	}
+    }
+
+    void updateViewSpecificGroupChanged(J3dMessage m) {
+	int component = ((Integer)m.args[0]).intValue();
+	Object[] objAry = (Object[])m.args[1];
+
+	ArrayList<LightRetained> ltList = null;
+	ArrayList<FogRetained> fogList = null;
+	ArrayList<ModelClipRetained> mclipList = null;
+	ArrayList<AlternateAppearanceRetained> altAppList = null;
+	ArrayList<BackgroundRetained> bgList = null;
+	ArrayList<ClipRetained> clipList = null;
+
+	if (((component & ViewSpecificGroupRetained.ADD_VIEW) != 0) ||
+	    ((component & ViewSpecificGroupRetained.SET_VIEW) != 0)) {
+	    int i;
+	    Object obj;
+	    View view = (View)objAry[0];
+	    ArrayList  vsgList = (ArrayList)objAry[1];
+	    ArrayList leafList = (ArrayList)objAry[2];
+	    int[] keyList = (int[])objAry[3];
+	    int size = vsgList.size();
+	    // Don't add null views
+
+	    if (view != null) {
+		for (i = 0; i < size; i++) {
+		    ViewSpecificGroupRetained vsg = (ViewSpecificGroupRetained)vsgList.get(i);
+		    int index = keyList[i];
+		    vsg.updateCachedInformation(ViewSpecificGroupRetained.ADD_VIEW, view, index);
+
+		}
+		size = leafList.size();
+		// Leaves is non-null only for the top VSG
+
+		if (size > 0) {
+		    // Now process the list of affected leaved
+		    for( i = 0; i < size; i++) {
+			obj = leafList.get(i);
+			if (obj instanceof LightRetained) {
+						LightRetained lt = (LightRetained)obj;
+						lt.isViewScoped = true;
+						numberOfLights++;
+						if (ltList == null) {
+							if ((ltList = viewScopedLights.get(view)) == null) {
+								ltList = new ArrayList<LightRetained>();
+								viewScopedLights.put(view, ltList);
+							}
+						}
+						ltList.add(lt);
+			}
+			if (obj instanceof FogRetained) {
+						FogRetained ft = (FogRetained)obj;
+						ft.isViewScoped = true;
+						numberOfFogs++;
+						if (fogList == null) {
+							if ((fogList = viewScopedFogs.get(view)) == null) {
+								fogList = new ArrayList<FogRetained>();
+								viewScopedFogs.put(view, fogList);
+							}
+						}
+						fogList.add(ft);
+			}
+			if (obj instanceof ModelClipRetained) {
+						ModelClipRetained mc = (ModelClipRetained)obj;
+						mc.isViewScoped = true;
+						numberOfModelClips++;
+						if (mclipList == null) {
+							if ((mclipList = viewScopedModelClips.get(view)) == null) {
+								mclipList = new ArrayList<ModelClipRetained>();
+								viewScopedModelClips.put(view, mclipList);
+							}
+						}
+						mclipList.add(mc);
+			}
+			if (obj instanceof AlternateAppearanceRetained) {
+						AlternateAppearanceRetained aart = (AlternateAppearanceRetained)obj;
+						aart.isViewScoped = true;
+						numberOfAltApps++;
+						if (altAppList == null) {
+							if ((altAppList = viewScopedAltAppearances
+									.get(view)) == null) {
+								altAppList = new ArrayList<AlternateAppearanceRetained>();
+								viewScopedAltAppearances.put(view, altAppList);
+							}
+						}
+						altAppList.add(aart);
+			}
+			if (obj instanceof ClipRetained) {
+						ClipRetained ct = (ClipRetained) obj;
+						ct.isViewScoped = true;
+						numberOfClips++;
+						if (clipList == null) {
+							if ((clipList = viewScopedClips.get(view)) == null) {
+								clipList = new ArrayList<ClipRetained>();
+								viewScopedClips.put(view, clipList);
+							}
+						}
+						clipList.add(ct);
+			}
+			if (obj instanceof BackgroundRetained) {
+						BackgroundRetained bg = (BackgroundRetained) obj;
+						bg.isViewScoped = true;
+						numberOfBgs++;
+						if (bgList == null) {
+							if ((bgList = viewScopedBackgrounds.get(view)) == null) {
+								bgList = new ArrayList<BackgroundRetained>();
+								viewScopedBackgrounds.put(view, bgList);
+							}
+						}
+						bgList.add(bg);
+					}
+		    }
+		    if (numberOfLights > retlights.length)
+			retlights = new LightRetained[numberOfLights];
+		    if (intersectedFogs.length < numberOfFogs)
+			intersectedFogs = new FogRetained[numberOfFogs];
+		    if (intersectedAltApps.length < numberOfAltApps)
+			intersectedAltApps = new AlternateAppearanceRetained[numberOfAltApps];
+		    if (intersectedBacks.length < numberOfBgs)
+			intersectedBacks = new BackgroundRetained[numberOfBgs];
+		    if (intersectedClips.length < numberOfClips)
+			intersectedClips = new ClipRetained[numberOfClips];
+		    if (intersectedModelClips.length < numberOfModelClips)
+			intersectedModelClips = new ModelClipRetained[numberOfModelClips];
+		}
+	    }
+	}
+	if (((component & ViewSpecificGroupRetained.REMOVE_VIEW) != 0)||
+	    ((component & ViewSpecificGroupRetained.SET_VIEW) != 0)) {
+	    int i;
+	    Object obj;
+	    ArrayList  vsgList;
+	    ArrayList leafList;
+	    int[] keyList;
+	    View view;
+
+	    if ((component & ViewSpecificGroupRetained.REMOVE_VIEW) != 0) {
+		view = (View)objAry[0];
+		vsgList = (ArrayList)objAry[1];
+		leafList = (ArrayList)objAry[2];
+		keyList = (int[])objAry[3];
+	    }
+	    else {
+		view = (View)objAry[4];
+		vsgList = (ArrayList)objAry[5];
+		leafList = (ArrayList)objAry[6];
+		keyList = (int[])objAry[7];
+	    }
+	    // Don't add null views
+	    if (view != null) {
+		int size = vsgList.size();
+		for (i = 0; i < size; i++) {
+		    ViewSpecificGroupRetained vsg = (ViewSpecificGroupRetained)vsgList.get(i);
+		    int index = keyList[i];
+		    vsg.updateCachedInformation(ViewSpecificGroupRetained.REMOVE_VIEW, view, index);
+
+		}
+		size = leafList.size();
+		// Leaves is non-null only for the top VSG
+		if (size > 0) {
+		    // Now process the list of affected leaved
+		    for( i = 0; i < size; i++) {
+			obj =  leafList.get(i);
+			if (obj instanceof LightRetained) {
+			    ((LightRetained)obj).isViewScoped = false;
+			    numberOfLights--;
+			    if (ltList == null) {
+				ltList = viewScopedLights.get(view);
+			    }
+			    ltList.remove(obj);
+			}
+			if (obj instanceof FogRetained) {
+			    ((FogRetained)obj).isViewScoped = false;
+			    numberOfFogs--;
+			    if (fogList == null) {
+				fogList = viewScopedFogs.get(view);
+			    }
+			    fogList.remove(obj);
+			}
+			if (obj instanceof ModelClipRetained) {
+			    ((ModelClipRetained)obj).isViewScoped = false;
+			    numberOfModelClips--;
+			    if (mclipList == null) {
+				mclipList = viewScopedModelClips.get(view);
+			    }
+			    mclipList.remove(obj);
+			}
+			if (obj instanceof AlternateAppearanceRetained) {
+			    ((AlternateAppearanceRetained)obj).isViewScoped = false;
+			    numberOfAltApps--;
+			    if (altAppList == null) {
+				altAppList = viewScopedAltAppearances.get(view);
+			    }
+			    altAppList.remove(obj);
+			}
+			if (obj instanceof ClipRetained) {
+			    ((ClipRetained)obj).isViewScoped = false;
+			    numberOfClips--;
+			    if (clipList == null) {
+				clipList = viewScopedClips.get(view);
+			    }
+			    clipList.remove(obj);
+			}
+			if (obj instanceof BackgroundRetained) {
+			    ((BackgroundRetained)obj).isViewScoped = false;
+			    numberOfBgs++;
+			    if (bgList == null) {
+				bgList = viewScopedBackgrounds.get(view);
+			    }
+			    bgList.remove(obj);
+			}
+		    }
+
+		    // If there are no more lights scoped to the view,
+		    // remove the mapping
+		    if (ltList != null && ltList.size() == 0)
+			viewScopedLights.remove(view);
+		    if (fogList != null && fogList.size() == 0)
+			viewScopedFogs.remove(view);
+		    if (mclipList != null && mclipList.size() == 0)
+			viewScopedModelClips.remove(view);
+		    if (altAppList != null && altAppList.size() == 0)
+			viewScopedAltAppearances.remove(view);
+		    if (clipList != null && clipList.size() == 0)
+			viewScopedClips.remove(view);
+		    if (bgList != null && bgList.size() == 0)
+			viewScopedBackgrounds.remove(view);
+		}
+	    }
+	}
+
+    }
+
+boolean isLightScopedToThisView(Object obj, View view) {
+	LightRetained light = (LightRetained)obj;
+	if (light.isViewScoped) {
+		ArrayList<LightRetained> l = viewScopedLights.get(view);
+		// If this is a scoped lights, but has no views then ..
+		if (l == null || !l.contains(light))
+			return false;
+	}
+	return true;
+}
+
+boolean isFogScopedToThisView(Object obj, View view) {
+	FogRetained fog = (FogRetained)obj;
+	if (fog.isViewScoped) {
+		ArrayList<FogRetained> l = viewScopedFogs.get(view);
+		// If this is a scoped fog, but has no views then ..
+		if (l == null || !l.contains(fog))
+			return false;
+	}
+	return true;
+}
+
+boolean isAltAppScopedToThisView(Object obj, View view) {
+	AlternateAppearanceRetained altApp = (AlternateAppearanceRetained)obj;
+	if (altApp.isViewScoped) {
+		ArrayList<AlternateAppearanceRetained> l = viewScopedAltAppearances.get(view);
+		// If this is a scoped altapp, but has no views then ..
+		if (l == null || !l.contains(altApp))
+			return false;
+	}
+	return true;
+}
+
+boolean isBgScopedToThisView(Object obj, View view) {
+	BackgroundRetained bg = (BackgroundRetained)obj;
+	if (bg.isViewScoped) {
+		ArrayList<BackgroundRetained> l = viewScopedBackgrounds.get(view);
+		// If this is a scoped bg, but has no views then ..
+		if (l == null || !l.contains(bg))
+			return false;
+	}
+	return true;
+}
+
+boolean isClipScopedToThisView(Object obj, View view) {
+	ClipRetained clip = (ClipRetained)obj;
+	if (clip.isViewScoped) {
+		ArrayList<ClipRetained> l = viewScopedClips.get(view);
+		// If this is a scoped clip, but has no views then ..
+		if (l == null || !l.contains(clip))
+			return false;
+	}
+	return true;
+}
+
+
+boolean isMclipScopedToThisView(Object obj, View view) {
+	ModelClipRetained mclip = (ModelClipRetained)obj;
+	if (mclip.isViewScoped) {
+		ArrayList<ModelClipRetained> l = viewScopedModelClips.get(view);
+		// If this is a scoped mclip, but has no views then ..
+		if (l == null || !l.contains(mclip))
+			return false;
+	}
+	return true;
+}
+
+@Override
+void cleanup() {}
+}