/* * $RCSfile$ * * Copyright (c) 2006 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; /** * * @author kcr */ public class PhongShadingGLSL extends javax.swing.JFrame { // Constants for type of light to use private static final int DIRECTIONAL_LIGHT = 0; private static final int POINT_LIGHT = 1; private static final int SPOT_LIGHT = 2; // Flag indicates type of lights: directional, point, or spot lights. private static int lightType = DIRECTIONAL_LIGHT; private SimpleUniverse u = null; private ShaderAppearance sApp = null; private ShaderProgram gouraudSP = null; private ShaderProgram phongSP = null; public BranchGroup createSceneGraph() { Color3f eColor = new Color3f(0.0f, 0.0f, 0.0f); Color3f sColor = new Color3f(1.0f, 1.0f, 1.0f); Color3f objColor = new Color3f(0.6f, 0.6f, 0.6f); // Color3f lColor1 = new Color3f(1.0f, 0.0f, 0.0f); // Color3f lColor2 = new Color3f(0.0f, 1.0f, 0.0f); Color3f lColor1 = new Color3f(1.0f, 1.0f, 0.5f); Color3f alColor = new Color3f(0.2f, 0.2f, 0.2f); Color3f bgColor = new Color3f(0.05f, 0.05f, 0.2f); Transform3D t; // Create the root of the branch graph BranchGroup objRoot = new BranchGroup(); // Create a Transformgroup to scale all objects so they // appear in the scene. TransformGroup objScale = new TransformGroup(); Transform3D t3d = new Transform3D(); t3d.setScale(0.5); 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); objRoot.addChild(bg); // Create the TransformGroup node and initialize it to the // identity. Enable the TRANSFORM_WRITE capability so that // our behavior code can modify it at run time. Add it to // the root of the subgraph. TransformGroup objTrans = new TransformGroup(); objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); objScale.addChild(objTrans); // Create a Sphere object, generate one copy of the sphere, // and add it into the scene graph. sApp = new ShaderAppearance(); sApp.setCapability(ShaderAppearance.ALLOW_SHADER_PROGRAM_WRITE); Material m = new Material(objColor, eColor, objColor, sColor, 100.0f); sApp.setMaterial(m); // Create Gouraud and Phong shader programs String vertexProgram = null; String fragmentProgram = null; Shader[] shaders = new Shader[2]; String[] attrNames = { "numLights" }; try { vertexProgram = StringIO.readFully("./gouraud.vert"); fragmentProgram = StringIO.readFully("./gouraud.frag"); } catch (IOException e) { throw new RuntimeException(e); } 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); gouraudSP = new GLSLShaderProgram(); gouraudSP.setShaders(shaders); try { vertexProgram = StringIO.readFully("./phong.vert"); fragmentProgram = StringIO.readFully("./phong.frag"); } catch (IOException e) { throw new RuntimeException(e); } 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); phongSP = new GLSLShaderProgram(); phongSP.setShaders(shaders); if (gouraudButton.isSelected()) { sApp.setShaderProgram(gouraudSP); } else if (phongButton.isSelected()) { sApp.setShaderProgram(phongSP); } Sphere sph = new Sphere(1.0f, Sphere.GENERATE_NORMALS, 30, sApp); objTrans.addChild(sph); // Create a new Behavior object that will perform the // desired operation on the specified transform and add // it into the scene graph. Transform3D yAxis = new Transform3D(); yAxis.rotZ(Math.PI); Alpha rotationAlpha = new Alpha(-1, 10000); RotationInterpolator rotator = new RotationInterpolator(rotationAlpha, objTrans, yAxis, 0.0f, (float) Math.PI*2.0f); rotator.setSchedulingBounds(bounds); objRoot.addChild(rotator); // Create the transform group node for the each light and initialize // it to the identity. Enable the TRANSFORM_WRITE capability so that // our behavior code can modify it at runtime. Add them to the root // of the subgraph. TransformGroup l1RotTrans = new TransformGroup(); l1RotTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); objScale.addChild(l1RotTrans); TransformGroup l2RotTrans = new TransformGroup(); l2RotTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); objScale.addChild(l2RotTrans); // Create transformations for the positional lights t = new Transform3D(); Vector3d lPos1 = new Vector3d(0.0, 0.0, 2.0); t.set(lPos1); TransformGroup l1Trans = new TransformGroup(t); l1RotTrans.addChild(l1Trans); // t = new Transform3D(); // Vector3d lPos2 = new Vector3d(0.5, 0.8, 2.0); // t.set(lPos2); // TransformGroup l2Trans = new TransformGroup(t); // l2RotTrans.addChild(l2Trans); // Create Geometry for point lights ColoringAttributes caL1 = new ColoringAttributes(); // ColoringAttributes caL2 = new ColoringAttributes(); caL1.setColor(lColor1); // caL2.setColor(lColor2); Appearance appL1 = new Appearance(); // Appearance appL2 = new Appearance(); appL1.setColoringAttributes(caL1); // appL2.setColoringAttributes(caL2); l1Trans.addChild(new Sphere(0.05f, appL1)); // l2Trans.addChild(new Sphere(0.05f, appL2)); // Create lights AmbientLight aLgt = new AmbientLight(alColor); Light lgt1 = null; // Light lgt2 = null; Point3f lPoint = new Point3f(0.0f, 0.0f, 0.0f); Point3f atten = new Point3f(1.0f, 0.0f, 0.0f); Vector3f lDirect1 = new Vector3f(lPos1); // Vector3f lDirect2 = new Vector3f(lPos2); lDirect1.negate(); // lDirect2.negate(); switch (lightType) { case DIRECTIONAL_LIGHT: lgt1 = new DirectionalLight(lColor1, lDirect1); // lgt2 = new DirectionalLight(lColor2, lDirect2); break; case POINT_LIGHT: assert false : "can't get here"; lgt1 = new PointLight(lColor1, lPoint, atten); // lgt2 = new PointLight(lColor2, lPoint, atten); break; case SPOT_LIGHT: assert false : "can't get here"; lgt1 = new SpotLight(lColor1, lPoint, atten, lDirect1, 25.0f * (float)Math.PI / 180.0f, 10.0f); // lgt2 = new SpotLight(lColor2, lPoint, atten, lDirect2, // 25.0f * (float)Math.PI / 180.0f, 10.0f); break; } // Set the influencing bounds aLgt.setInfluencingBounds(bounds); lgt1.setInfluencingBounds(bounds); // lgt2.setInfluencingBounds(bounds); // Add the lights into the scene graph objScale.addChild(aLgt); l1Trans.addChild(lgt1); // l2Trans.addChild(lgt2); // Create a new Behavior object that will perform the desired // operation on the specified transform object and add it into the // scene graph. yAxis = new Transform3D(); Alpha rotor1Alpha = new Alpha(-1, Alpha.INCREASING_ENABLE, 0, 0, 4000, 0, 0, 0, 0, 0); RotationInterpolator rotator1 = new RotationInterpolator(rotor1Alpha, l1RotTrans, yAxis, 0.0f, (float) Math.PI*2.0f); rotator1.setSchedulingBounds(bounds); l1RotTrans.addChild(rotator1); // Create a new Behavior object that will perform the desired // operation on the specified transform object and add it into the // scene graph. Alpha rotor2Alpha = new Alpha(-1, Alpha.INCREASING_ENABLE, 0, 0, 1000, 0, 0, 0, 0, 0); RotationInterpolator rotator2 = new RotationInterpolator(rotor2Alpha, l2RotTrans, yAxis, 0.0f, 0.0f); bounds = new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0); rotator2.setSchedulingBounds(bounds); l2RotTrans.addChild(rotator2); return objRoot; } private Canvas3D initScene() { GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration(); Canvas3D c = new Canvas3D(config); u = new SimpleUniverse(c); // This will move the ViewPlatform back a bit so the // objects in the scene can be viewed. u.getViewingPlatform().setNominalViewingTransform(); BranchGroup scene = createSceneGraph(); u.addBranchGraph(scene); return c; } /** * Creates new form PhongShadingGLSL */ public PhongShadingGLSL() { // 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. */ // //GEN-BEGIN:initComponents private void initComponents() { java.awt.GridBagConstraints gridBagConstraints; shaderButtonGroup = new javax.swing.ButtonGroup(); guiPanel = new javax.swing.JPanel(); jPanel1 = new javax.swing.JPanel(); gouraudButton = new javax.swing.JRadioButton(); phongButton = new javax.swing.JRadioButton(); drawingPanel = new javax.swing.JPanel(); jMenuBar1 = new javax.swing.JMenuBar(); fileMenu = new javax.swing.JMenu(); exitMenuItem = new javax.swing.JMenuItem(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); setTitle("Phong Shading Test"); guiPanel.setLayout(new java.awt.GridBagLayout()); jPanel1.setLayout(new java.awt.GridBagLayout()); jPanel1.setBorder(javax.swing.BorderFactory.createTitledBorder("Shader")); shaderButtonGroup.add(gouraudButton); gouraudButton.setSelected(true); gouraudButton.setText("Per-Vertex Lighting (Gouraud)"); gouraudButton.setBorder(javax.swing.BorderFactory.createEmptyBorder(0, 0, 0, 0)); gouraudButton.setMargin(new java.awt.Insets(0, 0, 0, 0)); gouraudButton.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { gouraudButtonActionPerformed(evt); } }); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL; gridBagConstraints.insets = new java.awt.Insets(2, 2, 2, 2); jPanel1.add(gouraudButton, gridBagConstraints); shaderButtonGroup.add(phongButton); phongButton.setText("Per-Pixel Lighting (Phong)"); phongButton.setBorder(javax.swing.BorderFactory.createEmptyBorder(0, 0, 0, 0)); phongButton.setMargin(new java.awt.Insets(0, 0, 0, 0)); phongButton.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { phongButtonActionPerformed(evt); } }); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 0; gridBagConstraints.gridy = 1; gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL; gridBagConstraints.insets = new java.awt.Insets(2, 2, 2, 2); jPanel1.add(phongButton, gridBagConstraints); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL; gridBagConstraints.insets = new java.awt.Insets(4, 4, 4, 4); guiPanel.add(jPanel1, gridBagConstraints); getContentPane().add(guiPanel, java.awt.BorderLayout.NORTH); drawingPanel.setLayout(new java.awt.BorderLayout()); drawingPanel.setPreferredSize(new java.awt.Dimension(500, 500)); getContentPane().add(drawingPanel, 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(); }// //GEN-END:initComponents private void phongButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_phongButtonActionPerformed sApp.setShaderProgram(phongSP); }//GEN-LAST:event_phongButtonActionPerformed private void gouraudButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_gouraudButtonActionPerformed sApp.setShaderProgram(gouraudSP); }//GEN-LAST:event_gouraudButtonActionPerformed private void exitMenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_exitMenuItemActionPerformed System.exit(0); }//GEN-LAST:event_exitMenuItemActionPerformed /** * @param args the command line arguments */ public static void main(String args[]) { java.awt.EventQueue.invokeLater(new Runnable() { public void run() { new PhongShadingGLSL().setVisible(true); } }); } // Variables declaration - do not modify//GEN-BEGIN:variables private javax.swing.JPanel drawingPanel; private javax.swing.JMenuItem exitMenuItem; private javax.swing.JMenu fileMenu; private javax.swing.JRadioButton gouraudButton; private javax.swing.JPanel guiPanel; private javax.swing.JMenuBar jMenuBar1; private javax.swing.JPanel jPanel1; private javax.swing.JRadioButton phongButton; private javax.swing.ButtonGroup shaderButtonGroup; // End of variables declaration//GEN-END:variables }