1) No exit when exception is encountered.

2) Added new GLSL shader example program.

1 files changed, 666 insertions, 0 deletions

diff --git a/src/GLSLShaderTest/ShaderTestGLSL.java b/src/GLSLShaderTest/ShaderTestGLSL.java
new file mode 100644
index 0000000..b55650d
--- /dev/null
+++ b/src/GLSLShaderTest/ShaderTestGLSL.java
@@ -0,0 +1,666 @@
+/*
+ * $RCSfile$
+ *
+ * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistribution of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistribution in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in
+ *   the documentation and/or other materials provided with the
+ *   distribution.
+ *
+ * Neither the name of Sun Microsystems, Inc. or the names of
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * This software is provided "AS IS," without a warranty of any
+ * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
+ * EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
+ * NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
+ * USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
+ * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR
+ * ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
+ * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
+ * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
+ * INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ *
+ * You acknowledge that this software is not designed, licensed or
+ * intended for use in the design, construction, operation or
+ * maintenance of any nuclear facility.
+ *
+ * $Revision$
+ * $Date$
+ * $State$
+ */
+
+import com.sun.j3d.utils.geometry.Sphere;
+import com.sun.j3d.utils.shader.StringIO;
+import com.sun.j3d.utils.universe.*;
+import javax.media.j3d.*;
+import javax.vecmath.*;
+import java.awt.GraphicsConfiguration;
+import java.io.IOException;
+
+public class ShaderTestGLSL extends javax.swing.JFrame {
+
+    static final int GOLD   = 1;
+    static final int SILVER = 2;
+    
+    static final int DIMPLE_SHADER      = 1;
+    static final int BRICK_SHADER       = 2;
+    static final int WOOD_SHADER        = 3;
+    static final int POLKADOT3D_SHADER  = 4;        
+    
+    static final String[] shaderAttrNames1 = {
+        "Density", "Size", "LightPosition", "Color"
+    };
+
+    static final String[] shaderAttrNames2 = {
+        "BrickColor", "LightPosition"
+    };
+    
+    private SimpleUniverse u = null;
+    private View view;
+    private BranchGroup transpObj;
+    private BranchGroup scene = null;
+    private int shaderSelected = DIMPLE_SHADER;
+    private float density = 16.0f;
+    private int color = GOLD; 
+    
+    private Color3f eColor    = new Color3f(0.2f, 0.2f, 0.2f);
+    private Color3f sColor    = new Color3f(0.8f, 0.8f, 0.8f);
+    private Color3f objColor  = new Color3f(0.6f, 0.6f, 0.6f);
+    private Color3f bgColor   = new Color3f(0.05f, 0.05f, 0.2f);
+    private Color3f gold      = new Color3f(0.7f, 0.6f, 0.18f);
+    private Color3f silver    = new Color3f(0.75f, 0.75f, 0.75f);
+    
+    // Handlers for doing update
+    private ShaderAppearance sApp1 = null;
+    private ShaderAppearance sApp2 = null;    
+    private ShaderAppearance sApp3 = null;    
+    private ShaderAppearance sApp4 = null;    
+    private ShaderProgram sp1 = null;
+    private ShaderProgram sp2 = null;
+    private ShaderProgram sp3 = null;
+    private ShaderProgram sp4 = null;
+    private ShaderAttributeSet sas1 = null;
+    private ShaderAttributeSet sas2 = null;    
+    private ShaderAttributeObject sao1 = null;
+    private ShaderAttributeObject sao2 = null;    
+    private Sphere sphere = null;
+    private Shape3D s3d = null;
+    
+    private Material createMaterial() {
+    	Material m;
+        m = new Material(objColor, eColor, objColor, sColor, 100.0f);
+	m.setLightingEnable(true);
+        return m;
+    }
+ 
+    private ShaderProgram createGLSLShaderProgram(int index) {
+        String vertexProgram = null;
+	String fragmentProgram = null;
+	try {
+            switch (index) {
+                case DIMPLE_SHADER:
+                    vertexProgram = StringIO.readFully("./dimple.vert");
+                    fragmentProgram = StringIO.readFully("./dimple.frag");
+                    break;
+                case BRICK_SHADER:
+        	    vertexProgram = StringIO.readFully("./aabrick.vert");
+                    fragmentProgram = StringIO.readFully("./aabrick.frag");
+                    break;
+                case WOOD_SHADER:
+        	    vertexProgram = StringIO.readFully("./wood.vert");
+                    fragmentProgram = StringIO.readFully("./wood.frag");
+                    break;
+                case POLKADOT3D_SHADER:
+        	    vertexProgram = StringIO.readFully("./polkadot3d.vert");
+                    fragmentProgram = StringIO.readFully("./polkadot3d.frag");
+                    break;                    
+                default:
+            }
+	}
+ 	catch (IOException e) {
+	    throw new RuntimeException(e);
+	}
+  	Shader[] shaders = new Shader[2];
+	shaders[0] = new SourceCodeShader(Shader.SHADING_LANGUAGE_GLSL,
+					  Shader.SHADER_TYPE_VERTEX,
+					  vertexProgram);
+	shaders[1] = new SourceCodeShader(Shader.SHADING_LANGUAGE_GLSL,
+					  Shader.SHADER_TYPE_FRAGMENT,
+					  fragmentProgram);
+	ShaderProgram shaderProgram = new GLSLShaderProgram();
+        shaderProgram.setShaders(shaders);
+        return shaderProgram;
+    }    
+
+    private ShaderAttributeSet createShaderAttributeSet(int index) {
+        ShaderAttributeSet shaderAttributeSet = new ShaderAttributeSet();
+        ShaderAttributeObject shaderAttribute = null;
+        
+        switch (index) {
+            case DIMPLE_SHADER:
+                //  "Density", "Size", "Scale", "Color", "LightPosition"
+                shaderAttribute = new ShaderAttributeValue("Size", new Float(0.25));
+                shaderAttributeSet.put(shaderAttribute);
+                shaderAttribute = new ShaderAttributeValue("LightPosition",
+                        new Point3f(0.0f, 0.0f, 0.5f));
+                shaderAttributeSet.put(shaderAttribute);
+                
+                sao1 = new ShaderAttributeValue("Density", new Float(density));
+                sao1.setCapability(ShaderAttributeObject.ALLOW_VALUE_READ);
+                sao1.setCapability(ShaderAttributeObject.ALLOW_VALUE_WRITE);
+                shaderAttributeSet.put(sao1);
+                
+                if(color == GOLD) {
+                    sao2 = new ShaderAttributeValue("Color", gold);
+                }
+                else if (color == SILVER) {    
+                    sao2 = new ShaderAttributeValue("Color", silver);
+                }
+                sao2.setCapability(ShaderAttributeObject.ALLOW_VALUE_READ);
+                sao2.setCapability(ShaderAttributeObject.ALLOW_VALUE_WRITE);
+                shaderAttributeSet.put(sao2);                
+                break;
+                
+            case BRICK_SHADER:
+                // "BrickColor", "LightPosition"
+                shaderAttribute = new ShaderAttributeValue("BrickColor",
+                        new Color3f(1.0f, 0.3f, 0.2f));
+                shaderAttributeSet.put(shaderAttribute);
+                shaderAttribute = new ShaderAttributeValue("LightPosition",
+                        new Point3f(0.0f, 0.0f, 0.5f));
+                shaderAttributeSet.put(shaderAttribute);
+                break;
+            default:
+                assert false;
+        }
+        return shaderAttributeSet;
+    }
+    
+    private ShaderAppearance createShaderAppearance() {
+        ShaderAppearance sApp = new ShaderAppearance();
+        sApp.setMaterial(createMaterial());
+        return sApp;
+    }
+    
+    
+    private BranchGroup createSubSceneGraph() {
+        // Create the sub-root of the branch graph
+        BranchGroup subRoot = new BranchGroup();
+        
+        //
+        // Create 1 spheres with a GLSLShader and add it into the scene graph.
+        //
+        sApp1 = createShaderAppearance();
+        sApp1.setCapability(ShaderAppearance.ALLOW_SHADER_PROGRAM_READ);
+        sApp1.setCapability(ShaderAppearance.ALLOW_SHADER_PROGRAM_WRITE);
+        sApp1.setCapability(ShaderAppearance.ALLOW_SHADER_ATTRIBUTE_SET_READ);
+        sApp1.setCapability(ShaderAppearance.ALLOW_SHADER_ATTRIBUTE_SET_WRITE);
+
+        sp1 = createGLSLShaderProgram(1);
+        sp1.setShaderAttrNames(shaderAttrNames1);
+        sas1 = createShaderAttributeSet(1);
+        sas1.setCapability(ShaderAttributeSet.ALLOW_ATTRIBUTES_READ);
+        sas1.setCapability(ShaderAttributeSet.ALLOW_ATTRIBUTES_WRITE);
+        sApp1.setShaderProgram(sp1);
+        sApp1.setShaderAttributeSet(sas1);
+                
+        // Setup Brick shader
+        sp2 = createGLSLShaderProgram(2);
+        sp2.setShaderAttrNames(shaderAttrNames2);
+        sas2 = createShaderAttributeSet(2);
+        sApp2 = createShaderAppearance();
+        sApp2.setShaderProgram(sp2);
+        sApp2.setShaderAttributeSet(sas2);
+
+        // Setup Wood shader
+        sp3 = createGLSLShaderProgram(3);
+        sApp3 = createShaderAppearance();
+        sApp3.setShaderProgram(sp3);
+
+        // Setup Polkadot3d shader
+        sp4 = createGLSLShaderProgram(4);
+        sApp4 = createShaderAppearance();
+        sApp4.setShaderProgram(sp4);
+
+        sphere = new Sphere(1.5f, Sphere.GENERATE_NORMALS, 200, null);
+        s3d = (Shape3D)sphere.getShape();
+        s3d.setCapability(Shape3D.ALLOW_APPEARANCE_READ);
+        s3d.setCapability(Shape3D.ALLOW_APPEARANCE_WRITE);
+        s3d.setAppearance(sApp1);
+        
+        TransformGroup objTG;
+        Transform3D t = new Transform3D();
+        t.set(new Vector3d(0.0, 0.0, 0.0));
+        objTG = new TransformGroup(t);
+        objTG.addChild(sphere);
+        subRoot.addChild(objTG);
+        
+        return subRoot;
+    }
+    
+    private BranchGroup createSceneGraph(int selectedScene) {
+        // Create the root of the branch graph
+        BranchGroup objRoot = new BranchGroup();
+        objRoot.setCapability(BranchGroup.ALLOW_DETACH);
+        
+        // Create a Transformgroup to scale all objects so they
+        // appear in the scene.
+        TransformGroup objScale = new TransformGroup();
+        Transform3D t3d = new Transform3D();
+        t3d.setScale(0.4);
+        objScale.setTransform(t3d);
+        objRoot.addChild(objScale);
+        
+        // Create a bounds for the background and lights
+        BoundingSphere bounds =
+                new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);
+        
+        // Set up the background
+        Background bg = new Background(bgColor);
+        bg.setApplicationBounds(bounds);
+        objScale.addChild(bg);
+        
+        objScale.addChild(createSubSceneGraph());
+        
+        // Create a position interpolator and attach it to the view
+        // platform
+        TransformGroup vpTrans =
+                u.getViewingPlatform().getViewPlatformTransform();
+        Transform3D axisOfTranslation = new Transform3D();
+        Alpha transAlpha = new Alpha(-1,
+                Alpha.INCREASING_ENABLE |
+                Alpha.DECREASING_ENABLE,
+                0, 0,
+                5000, 0, 0,
+                5000, 0, 0);
+        axisOfTranslation.rotY(-Math.PI/2.0);
+        PositionInterpolator translator =
+                new PositionInterpolator(transAlpha,
+                vpTrans,
+                axisOfTranslation,
+                2.0f, 3.5f);
+        translator.setSchedulingBounds(bounds);
+        objScale.addChild(translator);
+        
+        // Let Java 3D perform optimizations on this scene graph.
+        objRoot.compile();
+        
+        return objRoot;
+    }
+    
+    private Canvas3D initScene() {
+        GraphicsConfiguration config =
+                SimpleUniverse.getPreferredConfiguration();
+        
+        Canvas3D c = new Canvas3D(config);
+        
+        u = new SimpleUniverse(c);
+        
+        ViewingPlatform viewingPlatform = u.getViewingPlatform();
+        // This will move the ViewPlatform back a bit so the
+        // objects in the scene can be viewed.
+        viewingPlatform.setNominalViewingTransform();
+        
+        view = u.getViewer().getView();
+        
+        return c;
+    }
+    
+    /**
+     * Creates new form ShaderTestGLSL
+     */
+    public ShaderTestGLSL() {
+        // Initialize the GUI components
+        initComponents();
+        
+        // Create the scene and add the Canvas3D to the drawing panel
+        Canvas3D c = initScene();
+        drawingPanel.add(c, java.awt.BorderLayout.CENTER);
+    }
+    
+    
+    // ----------------------------------------------------------------
+    
+    /** This method is called from within the constructor to
+     * initialize the form.
+     * WARNING: Do NOT modify this code. The content of this method is
+     * always regenerated by the Form Editor.
+     */
+    // <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:initComponents
+    private void initComponents() {
+        java.awt.GridBagConstraints gridBagConstraints;
+
+        densityButtonGroup = new javax.swing.ButtonGroup();
+        colorButtonGroup = new javax.swing.ButtonGroup();
+        sceneGraphButtonGroup = new javax.swing.ButtonGroup();
+        mainPanel = new javax.swing.JPanel();
+        guiPanel = new javax.swing.JPanel();
+        densityPanel = new javax.swing.JPanel();
+        zeroButton = new javax.swing.JRadioButton();
+        halfButton = new javax.swing.JRadioButton();
+        fullButton = new javax.swing.JRadioButton();
+        colorPanel = new javax.swing.JPanel();
+        goldButton = new javax.swing.JRadioButton();
+        silverButton = new javax.swing.JRadioButton();
+        sceneGraphPanel = new javax.swing.JPanel();
+        DetachButton = new javax.swing.JToggleButton();
+        AttachButton = new javax.swing.JToggleButton();
+        replaceSPButton = new javax.swing.JButton();
+        drawingPanel = new javax.swing.JPanel();
+        jMenuBar1 = new javax.swing.JMenuBar();
+        fileMenu = new javax.swing.JMenu();
+        exitMenuItem = new javax.swing.JMenuItem();
+
+        setTitle("Window Title");
+        addWindowListener(new java.awt.event.WindowAdapter() {
+            public void windowClosing(java.awt.event.WindowEvent evt) {
+                exitForm(evt);
+            }
+        });
+
+        mainPanel.setLayout(new java.awt.BorderLayout());
+
+        guiPanel.setLayout(new javax.swing.BoxLayout(guiPanel, javax.swing.BoxLayout.X_AXIS));
+
+        guiPanel.setBorder(new javax.swing.border.LineBorder(new java.awt.Color(0, 0, 0)));
+        densityPanel.setLayout(new java.awt.GridBagLayout());
+
+        densityPanel.setBorder(new javax.swing.border.TitledBorder("Density"));
+        densityButtonGroup.add(zeroButton);
+        zeroButton.setText("Zero");
+        zeroButton.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                zeroButtonActionPerformed(evt);
+            }
+        });
+
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
+        densityPanel.add(zeroButton, gridBagConstraints);
+
+        densityButtonGroup.add(halfButton);
+        halfButton.setText("Half");
+        halfButton.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                halfButtonActionPerformed(evt);
+            }
+        });
+
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 0;
+        gridBagConstraints.gridy = 1;
+        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
+        densityPanel.add(halfButton, gridBagConstraints);
+
+        densityButtonGroup.add(fullButton);
+        fullButton.setSelected(true);
+        fullButton.setText("Full");
+        fullButton.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                fullButtonActionPerformed(evt);
+            }
+        });
+
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 0;
+        gridBagConstraints.gridy = 2;
+        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
+        densityPanel.add(fullButton, gridBagConstraints);
+
+        guiPanel.add(densityPanel);
+        densityPanel.getAccessibleContext().setAccessibleName("ShaderAttributeValue \n");
+
+        colorPanel.setLayout(new java.awt.GridBagLayout());
+
+        colorPanel.setBorder(new javax.swing.border.TitledBorder("Color"));
+        colorButtonGroup.add(goldButton);
+        goldButton.setSelected(true);
+        goldButton.setText("Gold");
+        goldButton.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                goldButtonActionPerformed(evt);
+            }
+        });
+
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
+        colorPanel.add(goldButton, gridBagConstraints);
+
+        colorButtonGroup.add(silverButton);
+        silverButton.setText("Silver");
+        silverButton.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                silverButtonActionPerformed(evt);
+            }
+        });
+
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 0;
+        gridBagConstraints.gridy = 1;
+        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
+        colorPanel.add(silverButton, gridBagConstraints);
+
+        guiPanel.add(colorPanel);
+
+        sceneGraphPanel.setLayout(new java.awt.GridBagLayout());
+
+        sceneGraphPanel.setBorder(new javax.swing.border.TitledBorder("Scene Graph"));
+        sceneGraphButtonGroup.add(DetachButton);
+        DetachButton.setSelected(true);
+        DetachButton.setText("Detach");
+        DetachButton.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                DetachButtonActionPerformed(evt);
+            }
+        });
+
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
+        sceneGraphPanel.add(DetachButton, gridBagConstraints);
+
+        sceneGraphButtonGroup.add(AttachButton);
+        AttachButton.setText("Create");
+        AttachButton.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                AttachButtonActionPerformed(evt);
+            }
+        });
+
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 0;
+        gridBagConstraints.gridy = 1;
+        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
+        sceneGraphPanel.add(AttachButton, gridBagConstraints);
+
+        replaceSPButton.setText("Replace Shader");
+        replaceSPButton.setEnabled(false);
+        replaceSPButton.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                replaceSPButtonActionPerformed(evt);
+            }
+        });
+
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 0;
+        gridBagConstraints.gridy = 2;
+        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
+        sceneGraphPanel.add(replaceSPButton, gridBagConstraints);
+
+        guiPanel.add(sceneGraphPanel);
+
+        mainPanel.add(guiPanel, java.awt.BorderLayout.NORTH);
+
+        drawingPanel.setLayout(new java.awt.BorderLayout());
+
+        drawingPanel.setPreferredSize(new java.awt.Dimension(500, 500));
+        mainPanel.add(drawingPanel, java.awt.BorderLayout.CENTER);
+
+        getContentPane().add(mainPanel, java.awt.BorderLayout.CENTER);
+
+        fileMenu.setText("File");
+        exitMenuItem.setText("Exit");
+        exitMenuItem.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                exitMenuItemActionPerformed(evt);
+            }
+        });
+
+        fileMenu.add(exitMenuItem);
+
+        jMenuBar1.add(fileMenu);
+
+        setJMenuBar(jMenuBar1);
+
+        pack();
+    }
+    // </editor-fold>//GEN-END:initComponents
+
+    private void silverButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_silverButtonActionPerformed
+        color = SILVER;
+        if(scene != null) {
+            sao2.setValue(silver);
+        }
+    }//GEN-LAST:event_silverButtonActionPerformed
+
+    private void goldButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_goldButtonActionPerformed
+        color = GOLD;
+        if(scene != null) {
+            sao2.setValue(gold);
+        }
+    }//GEN-LAST:event_goldButtonActionPerformed
+
+    private void replaceSPButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_replaceSPButtonActionPerformed
+      if (shaderSelected != DIMPLE_SHADER) {
+          goldButton.setEnabled(false);
+          silverButton.setEnabled(false);
+          zeroButton.setEnabled(false);
+          halfButton.setEnabled(false);
+          fullButton.setEnabled(false);
+      }
+      
+      switch(shaderSelected) {
+          case DIMPLE_SHADER:
+             s3d.setAppearance(sApp1);
+             goldButton.setEnabled(true);
+             silverButton.setEnabled(true);
+             zeroButton.setEnabled(true);
+             halfButton.setEnabled(true);
+             fullButton.setEnabled(true); 
+             shaderSelected = BRICK_SHADER;
+             break;
+          case BRICK_SHADER:
+             s3d.setAppearance(sApp2);
+             shaderSelected = WOOD_SHADER;
+             break;
+          case WOOD_SHADER:
+              s3d.setAppearance(sApp3);
+              shaderSelected = POLKADOT3D_SHADER;
+              break;
+          case POLKADOT3D_SHADER:
+              s3d.setAppearance(sApp4);
+              shaderSelected = DIMPLE_SHADER;
+              break;
+          default:
+              assert false;
+      }
+      
+    }//GEN-LAST:event_replaceSPButtonActionPerformed
+
+    private void fullButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_fullButtonActionPerformed
+        density = 16.0f;
+        if (scene != null) {
+            sao1.setValue(new Float(density));
+        }
+    }//GEN-LAST:event_fullButtonActionPerformed
+
+    private void DetachButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_DetachButtonActionPerformed
+        if (scene != null) {
+            scene.detach();
+            scene = null;
+            replaceSPButton.setEnabled(false);
+            goldButton.setEnabled(true);
+            silverButton.setEnabled(true);
+            zeroButton.setEnabled(true);
+            halfButton.setEnabled(true);
+            fullButton.setEnabled(true);
+            shaderSelected = DIMPLE_SHADER;           
+        }
+    }//GEN-LAST:event_DetachButtonActionPerformed
+
+    private void AttachButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_AttachButtonActionPerformed
+       if (scene == null) {
+            scene = createSceneGraph(1);
+            u.addBranchGraph(scene);
+            replaceSPButton.setEnabled(true);
+            shaderSelected = BRICK_SHADER;
+       }  
+    }//GEN-LAST:event_AttachButtonActionPerformed
+
+    private void halfButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_halfButtonActionPerformed
+        density = 8.0f;
+        if(scene != null) {
+            sao1.setValue(new Float(density));
+        }
+    }//GEN-LAST:event_halfButtonActionPerformed
+
+    private void zeroButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_zeroButtonActionPerformed
+        density = 0.0f;
+        if(scene != null) {
+            sao1.setValue(new Float(density));
+        }
+  
+    }//GEN-LAST:event_zeroButtonActionPerformed
+
+    private void exitMenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_exitMenuItemActionPerformed
+        System.exit(0);
+    }//GEN-LAST:event_exitMenuItemActionPerformed
+
+    /** Exit the Application */
+    private void exitForm(java.awt.event.WindowEvent evt) {//GEN-FIRST:event_exitForm
+        System.exit(0);
+    }//GEN-LAST:event_exitForm
+
+    /**
+     * @param args the command line arguments
+     */
+    public static void main(String args[]) {
+        new ShaderTestGLSL().setVisible(true);
+    }
+
+    // Variables declaration - do not modify//GEN-BEGIN:variables
+    private javax.swing.JToggleButton AttachButton;
+    private javax.swing.JToggleButton DetachButton;
+    private javax.swing.ButtonGroup colorButtonGroup;
+    private javax.swing.JPanel colorPanel;
+    private javax.swing.ButtonGroup densityButtonGroup;
+    private javax.swing.JPanel densityPanel;
+    private javax.swing.JPanel drawingPanel;
+    private javax.swing.JMenuItem exitMenuItem;
+    private javax.swing.JMenu fileMenu;
+    private javax.swing.JRadioButton fullButton;
+    private javax.swing.JRadioButton goldButton;
+    private javax.swing.JPanel guiPanel;
+    private javax.swing.JRadioButton halfButton;
+    private javax.swing.JMenuBar jMenuBar1;
+    private javax.swing.JPanel mainPanel;
+    private javax.swing.JButton replaceSPButton;
+    private javax.swing.ButtonGroup sceneGraphButtonGroup;
+    private javax.swing.JPanel sceneGraphPanel;
+    private javax.swing.JRadioButton silverButton;
+    private javax.swing.JRadioButton zeroButton;
+    // End of variables declaration//GEN-END:variables
+
+}