I know that after fews hours my video card does not show anything or light
object diferently and i need to reboot.
i use ATI wonder
-----Message d'origine-----
De : Fabrizio NUNNARI <[EMAIL PROTECTED]>
Ŕ : [EMAIL PROTECTED] <[EMAIL PROTECTED]>
Date : vendredi 6 juin 2003 11:02
Objet : Re: [JAVA3D] Possible lighting bug
>Works fine with my system. And I guess it's not T&L Enabled...
>
>- PIII @ 600MHz, Matrox Millenuim G400 (AGP 1x!!!)
>- Linux version 2.4.20 ([EMAIL PROTECTED]) (gcc version 2.95.3 20010315
>(release)) #1 Thu Feb 20 11:30:41 CET 2003
>- mgadrivers-2.1.tgz
>- XFree86 Version 4.2.0 / X Window System (protocol Version 11, revision
>0, vendor release 6600) Release Date: 18 January 2002
>- java version "1.4.1_01" from SUN
>- Java 3D(TM) 1.3.1 Beta fom Blackdown
>- ~72FPS in ~1280x1024 sized window
>
>Fabrizio NUNNARI
>
>Rob Nugent wrote:
>> Hi All,
>>
>> I've hit what may be a lighting bug, and I wonder if someone could try to
>> confirm my results on their system please.
>>
>> The testcase is based on one of Florin's performance tests, and displays
a
>> number of cubes.
>>
>> Each cube is in its own TransformGroup. Each TransformGroup has a yellow
>> point
>> light added to it. The PointLight is scoped to only affect that
>> TransformGroup.
>>
>> There are additionally a single ambient light and a single directional
>> light
>> each with default (universal) scope.
>>
>> Each cube should therefore lit by exactly 3 lights (1 ambient, 1
>> directional, 1
>> point). The trouble is on my system, that only some of the cubes are lit
by
>> their point lights. See the attached JPEG for details.
>>
>> Can anyone say if they get the same problem - I'm trying to work out if
>> this is
>> a general Java3D issue, or an issue with my machine/video card.
>>
>> Thanks !
>>
>> Rob
>> --
>>
>>
>> Rob Nugent
>> Sun Microsystems, Southampton, UK
>>
>> [EMAIL PROTECTED]
>>
>> Tel: +44 (0) 1489 585503
>> Fax: +44 (0) 1489 881363
>>
>> ------------------------------------------------------------------------
>>
>>
>> ------------------------------------------------------------------------
>>
>> /*
>> * $Id: $
>> * c. 2002 publity AG
>> */
>>
>> import java.awt.BorderLayout;
>> import java.awt.Color;
>> import java.util.Enumeration;
>>
>> import javax.media.j3d.Canvas3D;
>> import javax.media.j3d.BranchGroup;
>> import javax.media.j3d.TransformGroup;
>> import javax.media.j3d.Transform3D;
>> import javax.media.j3d.BoundingSphere;
>> import javax.media.j3d.Appearance;
>> import javax.media.j3d.Material;
>> import javax.media.j3d.AmbientLight;
>> import javax.media.j3d.DirectionalLight;
>> import javax.media.j3d.PointLight;
>> import javax.media.j3d.Alpha;
>> import javax.media.j3d.Behavior;
>> import javax.media.j3d.WakeupCondition;
>> import javax.media.j3d.WakeupOnElapsedFrames;
>> import javax.media.j3d.Shape3D;
>> import javax.media.j3d.QuadArray;
>> import javax.media.j3d.Geometry;
>> import javax.swing.JFrame;
>> import javax.swing.JLabel;
>> import javax.vecmath.Vector3f;
>> import javax.vecmath.Point3d;
>> import javax.vecmath.Color3f;
>> import javax.vecmath.Point3f;
>>
>> import com.sun.j3d.utils.universe.SimpleUniverse;
>> import com.sun.j3d.utils.timer.J3DTimer;
>>
>> /**
>> *
>> * @author fherinean
>> * @version $Revision: $
>> */
>> public class LTest extends JFrame
>> {
>> private JLabel label = new JLabel("FPS: ");
>> private Appearance app = null;
>> private QuadArray geom = null;
>>
>> // box size
>> float size = 0.1f;
>> Point3f lower = new Point3f(-size, -size, -size);
>> Point3f upper = new Point3f(size, size, size);
>>
>> // normals for a simple box
>> float[] normals = {
>> 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f,
1.0f,
>> 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f,
0.0f,
>> 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f,
0.0f, -1.0f,
>> -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f,
0.0f, 0.0f,
>> 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f,
0.0f, -1.0f, 0.0f,
>> 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f,
0.0f,
>> };
>>
>> // box coords
>> float[] coords = {
>> lower.x, lower.y, upper.z, upper.x, lower.y, upper.z, upper.x,
upper.y, upper.z, lower.x, upper.y, upper.z,
>> upper.x, lower.y, upper.z, upper.x, lower.y, lower.z, upper.x,
upper.y, lower.z, upper.x, upper.y, upper.z,
>> upper.x, lower.y, lower.z, lower.x, lower.y, lower.z, lower.x,
upper.y, lower.z, upper.x, upper.y, lower.z,
>> lower.x, lower.y, lower.z, lower.x, lower.y, upper.z, lower.x,
upper.y, upper.z, lower.x, upper.y, lower.z,
>> lower.x, lower.y, lower.z, upper.x, lower.y, lower.z, upper.x,
lower.y, upper.z, lower.x, lower.y, upper.z,
>> upper.x, upper.y, lower.z, lower.x, upper.y, lower.z, lower.x,
upper.y, upper.z, upper.x, upper.y, upper.z,
>> };
>>
>> public LTest()
>> {
>> super();
>>
>> // create canvas & universe
>> Canvas3D c3d = new
Canvas3D(SimpleUniverse.getPreferredConfiguration());
>> SimpleUniverse universe = new SimpleUniverse(c3d);
>> universe.addBranchGraph(createBranchBroup());
>>
>> // show the window
>> getContentPane().add(c3d, BorderLayout.CENTER);
>> getContentPane().add(label, BorderLayout.SOUTH);
>> setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
>> setSize(400, 400);
>> setVisible(true);
>> }
>>
>> private BranchGroup createBranchBroup()
>> {
>> BranchGroup objRoot = new BranchGroup();
>> FPSCounter counter = new FPSCounter(6 * 6);
>> for (int k = 0; k < 6; k++)
>> {
>> for (int l = 0; l < 6; l++)
>> {
>> Vector3f position = new Vector3f(-1.0f + k * 0.05f, -0.9f
+ 0.38f * l, -3.5f - (k * 0.3f));
>> TransformGroup objSpin = new TransformGroup();
>>
objSpin.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
>>
objSpin.setCapabilityIsFrequent(TransformGroup.ALLOW_TRANSFORM_WRITE);
>> objSpin.addChild(new Shape3D(getGeometry(1, 0.4f, 0.0f),
getAppearance()));
>> counter.addTarget(objSpin, position);
>>
>> BoundingSphere bounds = new BoundingSphere(new
Point3d(0.0,0.0,0.0),
>> Double.POSITIVE_INFINITY);
>>
>> PointLight pl = new PointLight();
>> pl.setCapability(PointLight.ALLOW_STATE_WRITE);
>> pl.setColor(new Color3f(1.0f,1.0f,0.0f));
>> Point3f pos = new Point3f(1.25f,0.0f, 0.0f);
>> pl.setPosition(pos);
>>
>> pl.setAttenuation(0.0f,0.0f,0.015f);
>> pl.setInfluencingBounds(bounds);
>> objSpin.addChild(pl);
>> pl.addScope(objSpin);
>>
>> objRoot.addChild(objSpin);
>> }
>> }
>> objRoot.addChild(counter);
>>
>> BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0,
0.0), 1000.0);
>> Color3f ambientColor = new Color3f(0.3f, 0.3f, 0.3f);
>> AmbientLight ambientLightNode = new AmbientLight(ambientColor);
>> ambientLightNode.setInfluencingBounds(bounds);
>> objRoot.addChild(ambientLightNode);
>>
>> //Skapa en direktionell ljuskÄalla
>> Color3f light1Color = new Color3f(0.1f, 0.1f, 0.1f);
>> Vector3f light1Direction = new Vector3f(0.0f, 0.0f, -1.0f);
>> DirectionalLight light1 = new DirectionalLight();
>> light1.setInfluencingBounds(bounds);
>> light1.setDirection(light1Direction);
>> light1.setColor(light1Color);
>> objRoot.addChild(light1);
>>
>> //objRoot.compile();
>> return objRoot;
>> }
>>
>> private Appearance getAppearance()
>> {
>> if (app == null)
>> {
>> app = new Appearance();
>> Color3f ambient = new Color3f(Color.LIGHT_GRAY);
>> Color3f emissive = new Color3f(Color.BLACK);
>> Color3f diffuse = new Color3f(Color.LIGHT_GRAY);
>> Color3f specular = new Color3f(Color.WHITE);
>> Material material = new Material(ambient, emissive, diffuse,
specular, 10);
>> app.setMaterial(material);
>> }
>> return app;
>> }
>>
>> private Geometry getGeometry(int count, float dx, float dy)
>> {
>> if (geom == null)
>> {
>> Point3f coord = new Point3f();
>> Vector3f norm = new Vector3f();
>> geom = new QuadArray(24 * count,
>> QuadArray.COORDINATES | QuadArray.NORMALS);
>> int d = 0;
>> for (int i = 0; i < count; i++)
>> {
>> Transform3D trans = new Transform3D();
>> trans.setTranslation(new Vector3f(dx * i, dy * i, 0));
>> int d1 = 0;
>> for (int j = 0; j < 24; j++)
>> {
>> coord.set(coords[d1], coords[d1 + 1], coords[d1 +
2]);
>> trans.transform(coord);
>> geom.setCoordinate(d, coord);
>> norm.set(normals[d1], normals[d1 + 1], normals[d1 +
2]);
>> geom.setNormal(d++, norm);
>> d1 += 3;
>> }
>> }
>> }
>> return geom;
>> }
>>
>> public static void main(String[] args)
>> {
>> new LTest();
>> }
>>
>> public class FPSCounter
>> extends Behavior
>> {
>> private int nFrames;
>> private long startTime;
>> private final WakeupCondition w;
>> private int count = 0;
>> private Transform3D transform = new Transform3D();
>> private Alpha alpha = new Alpha(-1, 8000);
>> private Vector3f[] posArray;
>> private TransformGroup[] tgArray;
>> private int size = 0;
>>
>> public FPSCounter(int size)
>> {
>> nFrames = 200;
>> this.size = size;
>> tgArray = new TransformGroup[size];
>> posArray = new Vector3f[size];
>> w = new WakeupOnElapsedFrames(0);
>> }
>>
>> public void initialize()
>> {
>> count = 0;
>> setSchedulingBounds(new BoundingSphere(new Point3d(), 1000));
>> startTime = J3DTimer.getValue();
>> wakeupOn(w);
>> }
>>
>> public void processStimulus(Enumeration criteria)
>> {
>> count++;
>> if (count == nFrames)
>> {
>> long time = J3DTimer.getValue();
>> label.setText("FPS: " + (1000000000.0f * nFrames /
(time - startTime)));
>> startTime = time;
>> count = 0;
>> }
>> transform.rotX(alpha.value() * Math.PI * 2);
>> for (int i = 0; i < size; i++)
>> {
>> transform.setTranslation(posArray[i]);
>> tgArray[i].setTransform(transform);
>> }
>> wakeupOn(w);
>> }
>>
>> public void addTarget(TransformGroup tg, Vector3f position)
>> {
>> tgArray[count] = tg;
>> posArray[count++] = position;
>> }
>> }
>> }
>
>
>--
>Fabrizio Nunnari (nunnarif at di.unito.it)
>PhD Student - Computer Science Department - Torino - Italy
>http://www.di.unito.it/~nunnarif/
>
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>
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