При импорте в джаве 3д модели из obj файла сбиваются нормали, код импорта - стандартный из примеров с официальго сайта. не подскажите как вообще можно подправлять такие вещи и вообще в какую сторону копать? с 3д довольно туго, так что приветсвуются правильные ссылки в гугл  заранее спасибо. | Код |
import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.GraphicsConfiguration;
import java.awt.event.KeyEvent;
import java.io.FileNotFoundException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Enumeration;
import javax.media.j3d.Alpha;
import javax.media.j3d.AmbientLight;
import javax.media.j3d.Background;
import javax.media.j3d.Behavior;
import javax.media.j3d.BoundingSphere;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.Canvas3D;
import javax.media.j3d.DirectionalLight;
import javax.media.j3d.RotationInterpolator;
import javax.media.j3d.Transform3D;
import javax.media.j3d.TransformGroup;
import javax.media.j3d.WakeupOnAWTEvent;
import javax.swing.JFrame;
import javax.vecmath.Color3f;
import javax.vecmath.Point3d;
import javax.vecmath.Vector3f;
import com.sun.j3d.loaders.IncorrectFormatException;
import com.sun.j3d.loaders.ParsingErrorException;
import com.sun.j3d.loaders.Scene;
import com.sun.j3d.loaders.objectfile.ObjectFile;
import com.sun.j3d.utils.behaviors.vp.OrbitBehavior;
import com.sun.j3d.utils.universe.PlatformGeometry;
import com.sun.j3d.utils.universe.SimpleUniverse;
import com.sun.j3d.utils.universe.ViewingPlatform;
public class SomeClass extends Applet
{
private static final long serialVersionUID = 2314234895161365954L;
private boolean spin = false;
private double creaseAngle = 60.0;
private URL filename = null;
private SimpleUniverse u;
private BoundingSphere bounds;
public class SimpleBehavior extends Behavior {
private TransformGroup targetTG;
private Transform3D rotation = new Transform3D();
private double angle = 0.0;
// create SimpleBehavior
SimpleBehavior(TransformGroup targetTG) {
this.targetTG = targetTG;
}
// initialize the Behavior
// set initial wakeup condition
// called when behavior beacomes live
public void initialize() {
// set initial wakeup condition
this.wakeupOn(new WakeupOnAWTEvent(KeyEvent.KEY_PRESSED));
}
@Override
public void processStimulus(Enumeration arg0) {
// decode event
// do what is necessary
angle += 0.1;
rotation.rotY(angle);
targetTG.setTransform(rotation);
this.wakeupOn(new WakeupOnAWTEvent(KeyEvent.KEY_PRESSED));
}
} // end of class SimpleBehavior
public BranchGroup createSceneGraph()
{
// 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(0.7);
objScale.setTransform(t3d);
objRoot.addChild(objScale);
// Create the transform group node and initialize it to the
// identity. Enable the TRANSFORM_WRITE capability so that
// our behavior code can modify it at runtime. Add it to the
// root of the subgraph.
TransformGroup objTrans = new TransformGroup();
objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
objScale.addChild(objTrans);
int flags = ObjectFile.RESIZE;
//if (!noTriangulate)
// flags |= ObjectFile.TRIANGULATE;
//if (!noStripify)
// flags |= ObjectFile.STRIPIFY;
// flags |= ObjectFile.REVERSE;
ObjectFile f = new ObjectFile(flags, (float) (creaseAngle * Math.PI / 180.0));
f.setFlags(ObjectFile.LOAD_ALL);
Scene s = null;
try
{
s = f.load(filename);
}
catch (FileNotFoundException e)
{
System.err.println(e);
System.exit(1);
}
catch (ParsingErrorException e)
{
System.err.println(e);
System.exit(1);
}
catch (IncorrectFormatException e)
{
System.err.println(e);
System.exit(1);
}
objTrans.addChild(s.getSceneGroup());
bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0);
SimpleBehavior beh = new SimpleBehavior(objTrans);
beh.setSchedulingBounds(bounds);
objRoot.addChild(beh);
if (spin)
{
Transform3D yAxis = new Transform3D();
Alpha rotationAlpha = new Alpha(-1, Alpha.INCREASING_ENABLE, 0, 0, 9000, 0, 0, 0, 0, 0);
RotationInterpolator rotator = new RotationInterpolator(
rotationAlpha,
objTrans,
yAxis,
0.0f,
(float) Math.PI * 2.0f);
rotator.setSchedulingBounds(bounds);
objTrans.addChild(rotator);
}
// Set up the background
Color3f bgColor = new Color3f(0.0f, 0.0f, 0.0f);
Background bgNode = new Background(bgColor);
bgNode.setApplicationBounds(bounds);
objRoot.addChild(bgNode);
return objRoot;
}
public void init()
{
if (filename == null)
{
try
{
filename = new URL("file:/c:/3.obj");
}
catch (MalformedURLException e)
{
System.err.println(e);
System.exit(1);
}
}
setLayout(new BorderLayout());
GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration();
Canvas3D c = new Canvas3D(config);
add("Center", c);
// Create a simple scene and attach it to the virtual universe
BranchGroup scene = createSceneGraph();
u = new SimpleUniverse(c);
// add mouse behaviors to the ViewingPlatform
ViewingPlatform viewingPlatform = u.getViewingPlatform();
PlatformGeometry pg = new PlatformGeometry();
// Set up the ambient light
Color3f ambientColor = new Color3f(0.1f, 0.1f, 0.1f);
AmbientLight ambientLightNode = new AmbientLight(ambientColor);
ambientLightNode.setInfluencingBounds(bounds);
pg.addChild(ambientLightNode);
// Set up the directional lights
Color3f light1Color = new Color3f(1.0f, 1.0f, 0.9f);
Vector3f light1Direction = new Vector3f(1.0f, 1.0f, 1.0f);
Color3f light2Color = new Color3f(1.0f, 1.0f, 1.0f);
Vector3f light2Direction = new Vector3f(-1.0f, -1.0f, -1.0f);
DirectionalLight light1 = new DirectionalLight(light1Color, light1Direction);
light1.setInfluencingBounds(bounds);
pg.addChild(light1);
DirectionalLight light2 = new DirectionalLight(light2Color, light2Direction);
light2.setInfluencingBounds(bounds);
pg.addChild(light2);
viewingPlatform.setPlatformGeometry(pg);
// This will move the ViewPlatform back a bit so the
// objects in the scene can be viewed.
viewingPlatform.setNominalViewingTransform();
if (!spin)
{
OrbitBehavior orbit = new OrbitBehavior(c, OrbitBehavior.REVERSE_ALL);
BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0);
orbit.setSchedulingBounds(bounds);
viewingPlatform.setViewPlatformBehavior(orbit);
}
u.addBranchGraph(scene);
}
public SomeClass()
{
init();
}
public void destroy()
{
u.cleanup();
}
public static void main(String[] args)
{
JFrame f = new JFrame();
f.setSize(600, 600);
f.add(new SomeClass());
f.setVisible(true);
}
}
|
|
Нормали в java3D 
Загрузка ...
