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Avatar billede fredand Forsker
15. august 2001 - 13:07 Der er 1 løsning

Problems with CULL_NONE in java 3D

Hello!

I\'m trying to get the \"PolygonAttributes.CULL_NONE\" to work in an 3D applet. But I can\'t get it right
<p>

I ad here 1a full class wich extends Shape3D wich in my opinion use \"PolygonAttributes.CULL_NONE\" wich also in my opinion shuld be solid.<p>

I also add the html-file to run it and an applet.
<b>When you have started the applet, start navigate with ARROW_DOWN-key. Then You will see the Shape3d</b> <p>

<br> The shape3d-class</b><p>
import java.applet.*;
import java.awt.*;
import java.awt.Frame;
import java.awt.event.*;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.universe.*;
import com.sun.j3d.utils.geometry.*;
import javax.media.j3d.*;
import javax.vecmath.*;
import java.awt.event.*;
import java.util.Enumeration;



public class Test3dBrick extends Shape3D
{

    public Test3dBrick()
    {
        createAppearance();
        addGeometry(getContour());
        addGeometry(getBody());
    }

    public void createAppearance()
    {
        Appearance appearance = new Appearance();
        PolygonAttributes polygonAttributes = new PolygonAttributes();
        polygonAttributes.setCullFace(PolygonAttributes.CULL_NONE);
        polygonAttributes.setPolygonMode(PolygonAttributes.POLYGON_FILL);
        polygonAttributes.setBackFaceNormalFlip(true);
        appearance.setPolygonAttributes(polygonAttributes);
        setAppearance(appearance);
    }


    public Geometry getContour()
    {
        Color3f darkgray = new Color3f(0.2f, 0.2f, 0.2f);

        IndexedLineArray indexedLineArray = new IndexedLineArray(8,  GeometryArray.COORDINATES | GeometryArray.COLOR_3 , 24);

        indexedLineArray.setCoordinate(0, new Point3f(  -0.201f, -0.001f,  -0.201f ));
        indexedLineArray.setCoordinate(1, new Point3f( -0.201f, -0.001f, 0.201f ));
        indexedLineArray.setCoordinate(2, new Point3f( 0.201f, -0.001f,  0.201f ));
        indexedLineArray.setCoordinate(3, new Point3f(  0.201f, -0.001f,  -0.201f ));

        indexedLineArray.setCoordinate(4, new Point3f(  -0.201f, 0.201f,  -0.201f ));
        indexedLineArray.setCoordinate(5, new Point3f( -0.201f, 0.201f, 0.201f ));
        indexedLineArray.setCoordinate(6, new Point3f( 0.201f, 0.201f,  0.201f ));
        indexedLineArray.setCoordinate(7, new Point3f(  0.201f, 0.201f,  -0.201f ));

        indexedLineArray.setCoordinateIndex( 0, 0);
        indexedLineArray.setCoordinateIndex( 1, 1);

        indexedLineArray.setCoordinateIndex( 2, 1);
        indexedLineArray.setCoordinateIndex( 3, 2);

        indexedLineArray.setCoordinateIndex( 4, 2);
        indexedLineArray.setCoordinateIndex( 5, 3);

        indexedLineArray.setCoordinateIndex( 6, 3);
        indexedLineArray.setCoordinateIndex( 7, 0);

        indexedLineArray.setCoordinateIndex( 10, 4);
        indexedLineArray.setCoordinateIndex( 11, 5);

        indexedLineArray.setCoordinateIndex( 12, 5);
        indexedLineArray.setCoordinateIndex( 13, 6);

        indexedLineArray.setCoordinateIndex( 14, 6);
        indexedLineArray.setCoordinateIndex( 15, 7);

        indexedLineArray.setCoordinateIndex( 16, 7);
        indexedLineArray.setCoordinateIndex( 17, 4);

        indexedLineArray.setCoordinateIndex( 8, 0);
        indexedLineArray.setCoordinateIndex( 9, 4);

        indexedLineArray.setCoordinateIndex( 18, 1);
        indexedLineArray.setCoordinateIndex( 19, 5);

        indexedLineArray.setCoordinateIndex( 20, 2);
        indexedLineArray.setCoordinateIndex( 21, 6);

        indexedLineArray.setCoordinateIndex( 22, 3);
        indexedLineArray.setCoordinateIndex( 23, 7);

        indexedLineArray.setColor(0, darkgray);

        return indexedLineArray;
    }

    public Geometry getBody()
    {
        Color3f lightgray = new Color3f(0.8f, 0.8f, 0.8f);

        IndexedQuadArray indexedQuadArray = new IndexedQuadArray(8,  GeometryArray.COORDINATES | GeometryArray.COLOR_3 , 24);

        indexedQuadArray.setCoordinate(0, new Point3f(  -0.2f, 0.0f,  -0.2f ));
        indexedQuadArray.setCoordinate(1, new Point3f( -0.2f, 0.0f, 0.2f ));
        indexedQuadArray.setCoordinate(2, new Point3f( 0.2f, 0.0f,  0.2f ));
        indexedQuadArray.setCoordinate(3, new Point3f(  0.2f, 0.0f,  -0.2f ));

        indexedQuadArray.setCoordinate(4, new Point3f(  -0.2f, 0.2f,  -0.2f ));
        indexedQuadArray.setCoordinate(5, new Point3f( -0.2f, 0.2f, 0.2f ));
        indexedQuadArray.setCoordinate(6, new Point3f( 0.2f, 0.2f,  0.2f ));
        indexedQuadArray.setCoordinate(7, new Point3f(  0.2f, 0.2f,  -0.2f ));

        indexedQuadArray.setCoordinateIndex( 0, 0);
        indexedQuadArray.setCoordinateIndex( 1, 1);
        indexedQuadArray.setCoordinateIndex( 2, 2);
        indexedQuadArray.setCoordinateIndex( 3, 3);

        indexedQuadArray.setCoordinateIndex( 4, 4);
        indexedQuadArray.setCoordinateIndex( 5, 5);
        indexedQuadArray.setCoordinateIndex( 6, 6);
        indexedQuadArray.setCoordinateIndex( 7, 7);

        indexedQuadArray.setCoordinateIndex( 8, 0);
        indexedQuadArray.setCoordinateIndex( 9, 4);
        indexedQuadArray.setCoordinateIndex( 10, 5);
        indexedQuadArray.setCoordinateIndex( 11, 1);

        indexedQuadArray.setCoordinateIndex( 12, 1);
        indexedQuadArray.setCoordinateIndex( 13, 5);
        indexedQuadArray.setCoordinateIndex( 14, 6);
        indexedQuadArray.setCoordinateIndex( 15, 7);

        indexedQuadArray.setCoordinateIndex( 16, 2);
        indexedQuadArray.setCoordinateIndex( 17, 6);
        indexedQuadArray.setCoordinateIndex( 18, 7);
        indexedQuadArray.setCoordinateIndex( 19, 3);

        indexedQuadArray.setCoordinateIndex( 20, 0);
        indexedQuadArray.setCoordinateIndex( 21, 4);
        indexedQuadArray.setCoordinateIndex( 22, 7);
        indexedQuadArray.setCoordinateIndex( 23, 3);

        indexedQuadArray.setColor(0, lightgray);

        return indexedQuadArray;

    }



}<p>
<b>The html-file:</b><p>
<html>
    <head></head>
    <body bgcolor=Yellow>
    <!--\"CONVERTED_APPLET\"-->
<!-- CONVERTER VERSION 1.3 -->
<OBJECT classid=\"clsid:8AD9C840-044E-11D1-B3E9-00805F499D93\"
WIDTH = \"600\" HEIGHT = \"400\"  codebase=\"http://java.sun.com/products/plugin/1.3/jinstall-13-win32.cab#Version=1,3,0,0\">
<PARAM NAME = CODE VALUE = \"Shape3DTesterApplet.class\" >
<PARAM NAME = CODEBASE VALUE = \".\" >

<PARAM NAME=\"type\" VALUE=\"application/x-java-applet;version=1.3\">
<PARAM NAME=\"scriptable\" VALUE=\"false\">
<PARAM NAME = \"archive\" VALUE =\"java.zip\">
<COMMENT>
<EMBED type=\"application/x-java-applet;version=1.3\"  CODE = \"Shape3DTesterApplet.class\" CODEBASE = \".\" WIDTH = \"600\" HEIGHT = \"400\" archive = \"java.zip\"  scriptable=false pluginspage=\"http://java.sun.com/products/plugin/1.3/plugin-install.html\"><NOEMBED></COMMENT>

</NOEMBED></EMBED>
</OBJECT>


<!--\"END_CONVERTED_APPLET\"-->

    </body>
</html>

<p>

<b>The applet</b>
<p>
import java.applet.*;
import java.awt.*;
import java.awt.Frame;
import java.awt.event.*;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.universe.*;
import com.sun.j3d.utils.geometry.*;
import javax.media.j3d.*;
import javax.vecmath.*;
import com.sun.j3d.utils.behaviors.keyboard.*;


public class Shape3DTesterApplet extends Applet
{
    public void init()
    {

        setLayout(new BorderLayout());
        GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration();

        Canvas3D canvas3D = new Canvas3D(config);
        add(\"Center\", canvas3D);

        SimpleUniverse simpleUniverse = new SimpleUniverse(canvas3D);

        BranchGroup branchGroup = new BranchGroup();

        branchGroup.addChild(addShape3D());


        TransformGroup transformGroup1 = simpleUniverse.getViewingPlatform().getViewPlatformTransform();
        KeyNavigatorBehavior keyNavigatorBehavior = new KeyNavigatorBehavior(transformGroup1);
        keyNavigatorBehavior.setSchedulingBounds(new BoundingSphere(new Point3d(-3.0f, -3.0f, -3.0f),10000.0));

        branchGroup.addChild(keyNavigatorBehavior);


        simpleUniverse.addBranchGraph(branchGroup);

    }

      public Shape3D addShape3D()
      {
        Test3dBrick test3dBrick = new Test3dBrick();
        return test3dBrick;
        }

}<p>

Best regards <br>
Fredrik
Avatar billede fredand Forsker
24. august 2001 - 12:40 #1
This did the trick!

import java.applet.*;
import java.awt.*;
import java.awt.Frame;
import java.awt.event.*;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.universe.*;
import com.sun.j3d.utils.geometry.*;
import javax.media.j3d.*;
import javax.vecmath.*;
import java.awt.event.*;
import java.util.Enumeration;



public class Test3dBrick extends Shape3D
{
    float x = 2;
    float y = 4;
    float z = 2;

    float posX = 0;
    float posY = 0;
    float posZ = 0;

    public Test3dBrick()
    {
        createAppearance();
        addGeometry(getContour());
        //addGeometry(getBody());
        addGeometry(getIndexedQuadArray());
    }

    public Test3dBrick(float x, float y, float z)
    {
        this.x = x/2;
        this.y = y;
        this.z = z/2;

        createAppearance();
        addGeometry(getContour());
        //addGeometry(getBody());
        addGeometry(getIndexedQuadArray());
    }

    public Test3dBrick(float x, float y, float z, Point3f point3f)
    {
        this.x = x/2;
        this.y = y;
        this.z = z/2;

        posX = point3f.x;
        posY = point3f.y;
        posZ = point3f.z;

        System.out.println(posX);
        System.out.println(posY);
        System.out.println(posZ);

        createAppearance();
        addGeometry(getContour());
        //addGeometry(getBody());
        addGeometry(getIndexedQuadArray());
    }

    public void createAppearance()
    {
        Appearance appearance = new Appearance();
        PolygonAttributes polygonAttributes = new PolygonAttributes();
        polygonAttributes.setCullFace(PolygonAttributes.CULL_NONE);
        polygonAttributes.setPolygonMode(PolygonAttributes.POLYGON_FILL);
        polygonAttributes.setBackFaceNormalFlip(true);
        appearance.setPolygonAttributes(polygonAttributes);
        setAppearance(appearance);
    }


    public Geometry getContour()
    {
        Color3f darkgray = new Color3f(0.3f, 0.3f, 0.3f);

        IndexedLineArray indexedLineArray = new IndexedLineArray(8,  GeometryArray.COORDINATES | GeometryArray.COLOR_3 , 24);

        indexedLineArray.setCoordinate(0, new Point3f(posX+(-x), posY+(-0.0f), posZ+(z) ));
        indexedLineArray.setCoordinate(1, new Point3f(posX+(-x), posY+(-0.0f), posZ+(-z) ));
        indexedLineArray.setCoordinate(2, new Point3f(posX+(x), posY+(-0.0f), posZ+(-z) ));
        indexedLineArray.setCoordinate(3, new Point3f(posX+(x), posY+(-0.0f), posZ+(z) ));

        indexedLineArray.setCoordinate(4, new Point3f(posX+(-x), posY+(-y), posZ+(z) ));
        indexedLineArray.setCoordinate(5, new Point3f(posX+(-x), posY+(-y), posZ+(-z) ));
        indexedLineArray.setCoordinate(6, new Point3f(posX+(x), posY+(-y), posZ+(-z) ));
        indexedLineArray.setCoordinate(7, new Point3f(posX+(x), posY+(-y), posZ+(z) ));

        /*
        indexedLineArray.setCoordinate(0, new Point3f(-x, -0.001f,  z ));
        indexedLineArray.setCoordinate(1, new Point3f(-x, -0.001f, -z ));
        indexedLineArray.setCoordinate(2, new Point3f( x, -0.001f, -z ));
        indexedLineArray.setCoordinate(3, new Point3f( x, -0.001f, z ));

        indexedLineArray.setCoordinate(4, new Point3f(-x, -y,  z ));
        indexedLineArray.setCoordinate(5, new Point3f(-x, -y, -z ));
        indexedLineArray.setCoordinate(6, new Point3f( x, -y, -z ));
        indexedLineArray.setCoordinate(7, new Point3f( x, -y,  z ));
        */

        indexedLineArray.setCoordinateIndex( 0, 0);
        indexedLineArray.setCoordinateIndex( 1, 1);

        indexedLineArray.setCoordinateIndex( 2, 1);
        indexedLineArray.setCoordinateIndex( 3, 2);

        indexedLineArray.setCoordinateIndex( 4, 2);
        indexedLineArray.setCoordinateIndex( 5, 3);

        indexedLineArray.setCoordinateIndex( 6, 3);
        indexedLineArray.setCoordinateIndex( 7, 0);

        indexedLineArray.setCoordinateIndex( 10, 4);
        indexedLineArray.setCoordinateIndex( 11, 5);

        indexedLineArray.setCoordinateIndex( 12, 5);
        indexedLineArray.setCoordinateIndex( 13, 6);

        indexedLineArray.setCoordinateIndex( 14, 6);
        indexedLineArray.setCoordinateIndex( 15, 7);

        indexedLineArray.setCoordinateIndex( 16, 7);
        indexedLineArray.setCoordinateIndex( 17, 4);

        indexedLineArray.setCoordinateIndex( 8, 0);
        indexedLineArray.setCoordinateIndex( 9, 4);

        indexedLineArray.setCoordinateIndex( 18, 1);
        indexedLineArray.setCoordinateIndex( 19, 5);

        indexedLineArray.setCoordinateIndex( 20, 2);
        indexedLineArray.setCoordinateIndex( 21, 6);

        indexedLineArray.setCoordinateIndex( 22, 3);
        indexedLineArray.setCoordinateIndex( 23, 7);

        indexedLineArray.setColor(0, darkgray);

        return indexedLineArray;
    }


    public Geometry getBody()
    {
        Color3f lightgray = new Color3f(0.8f, 0.8f, 0.8f);

        IndexedQuadArray indexedQuadArray = new IndexedQuadArray(8,  GeometryArray.COORDINATES | GeometryArray.COLOR_3 , 24);

        indexedQuadArray.setCoordinate(0, new Point3f(  -0.2f, 0.0f,  -0.2f ));
        indexedQuadArray.setCoordinate(1, new Point3f( -0.2f, 0.0f, 0.2f ));
        indexedQuadArray.setCoordinate(2, new Point3f( 0.2f, 0.0f,  0.2f ));
        indexedQuadArray.setCoordinate(3, new Point3f(  0.2f, 0.0f,  -0.2f ));

        indexedQuadArray.setCoordinate(4, new Point3f(  -0.2f, 0.2f,  -0.2f ));
        indexedQuadArray.setCoordinate(5, new Point3f( -0.2f, 0.2f, 0.2f ));
        indexedQuadArray.setCoordinate(6, new Point3f( 0.2f, 0.2f,  0.2f ));
        indexedQuadArray.setCoordinate(7, new Point3f(  0.2f, 0.2f,  -0.2f ));

        indexedQuadArray.setCoordinateIndex( 0, 0);
        indexedQuadArray.setCoordinateIndex( 1, 1);
        indexedQuadArray.setCoordinateIndex( 2, 2);
        indexedQuadArray.setCoordinateIndex( 3, 3);

        indexedQuadArray.setCoordinateIndex( 4, 4);
        indexedQuadArray.setCoordinateIndex( 5, 5);
        indexedQuadArray.setCoordinateIndex( 6, 6);
        indexedQuadArray.setCoordinateIndex( 7, 7);

        indexedQuadArray.setCoordinateIndex( 8, 0);
        indexedQuadArray.setCoordinateIndex( 9, 4);
        indexedQuadArray.setCoordinateIndex( 10, 5);
        indexedQuadArray.setCoordinateIndex( 11, 1);

        indexedQuadArray.setCoordinateIndex( 12, 1);
        indexedQuadArray.setCoordinateIndex( 13, 5);
        indexedQuadArray.setCoordinateIndex( 14, 6);
        indexedQuadArray.setCoordinateIndex( 15, 7);

        indexedQuadArray.setCoordinateIndex( 16, 2);
        indexedQuadArray.setCoordinateIndex( 17, 6);
        indexedQuadArray.setCoordinateIndex( 18, 7);
        indexedQuadArray.setCoordinateIndex( 19, 3);

        indexedQuadArray.setCoordinateIndex( 20, 0);
        indexedQuadArray.setCoordinateIndex( 21, 4);
        indexedQuadArray.setCoordinateIndex( 22, 7);
        indexedQuadArray.setCoordinateIndex( 23, 3);

        indexedQuadArray.setColor(0, lightgray);

        return indexedQuadArray;

    }

    public Geometry getIndexedQuadArray()
      {
        Color3f lightgray = new Color3f(0.8f, 0.8f, 0.8f);

        float x = this.x - 0.001f;
        float y = this.y - 0.001f;
        float z = this.z - 0.001f;

        IndexedQuadArray indexedQuadArray = new IndexedQuadArray(8, GeometryArray.COORDINATES | GeometryArray.COLOR_3, 24);

        indexedQuadArray.setCoordinate(0, new Point3f(posX+(-x), posY+(0.001f), posZ+(z) ));
        indexedQuadArray.setCoordinate(1, new Point3f(posX+(-x), posY+(0.001f), posZ+(-z) ));
        indexedQuadArray.setCoordinate(2, new Point3f(posX+(x), posY+(0.001f), posZ+(-z) ));
        indexedQuadArray.setCoordinate(3, new Point3f(posX+(x), posY+(0.001f), posZ+(z) ));

        indexedQuadArray.setCoordinate(4, new Point3f(posX+(-x), posY+(-y),  posZ+(z) ));
        indexedQuadArray.setCoordinate(5, new Point3f(posX+(-x), posY+(-y), posZ+(-z) ));
        indexedQuadArray.setCoordinate(6, new Point3f(posX+(x), posY+(-y), posZ+(-z) ));
        indexedQuadArray.setCoordinate(7, new Point3f(posX+(x), posY+(-y), posZ+(z) ));

        //Botten
        indexedQuadArray.setCoordinateIndex( 0, 0);
        indexedQuadArray.setCoordinateIndex( 1, 3);
        indexedQuadArray.setCoordinateIndex( 2, 2);
        indexedQuadArray.setCoordinateIndex( 3, 1);

        //Top
        indexedQuadArray.setCoordinateIndex( 4, 4);
        indexedQuadArray.setCoordinateIndex( 5, 5);
        indexedQuadArray.setCoordinateIndex( 6, 6);
        indexedQuadArray.setCoordinateIndex( 7, 7);

        //Höger sida
        indexedQuadArray.setCoordinateIndex( 8, 7);
        indexedQuadArray.setCoordinateIndex( 9, 6);
        indexedQuadArray.setCoordinateIndex( 10, 2);
        indexedQuadArray.setCoordinateIndex( 11, 3);

        //Vänster sida
        indexedQuadArray.setCoordinateIndex( 12, 0);
        indexedQuadArray.setCoordinateIndex( 13, 1);
        indexedQuadArray.setCoordinateIndex( 14, 5);
        indexedQuadArray.setCoordinateIndex( 15, 4);

        //Bak sida
        indexedQuadArray.setCoordinateIndex( 16, 4);
        indexedQuadArray.setCoordinateIndex( 17, 7);
        indexedQuadArray.setCoordinateIndex( 18, 3);
        indexedQuadArray.setCoordinateIndex( 19, 0);


        //Fram sida
        indexedQuadArray.setCoordinateIndex( 20, 5);
        indexedQuadArray.setCoordinateIndex( 21, 1);
        indexedQuadArray.setCoordinateIndex( 22, 2);
        indexedQuadArray.setCoordinateIndex( 23, 6);


        /*
        //Fram sida
        indexedQuadArray.setCoordinateIndex( 20, 6);
        indexedQuadArray.setCoordinateIndex( 21, 2);
        indexedQuadArray.setCoordinateIndex( 22, 1);
        indexedQuadArray.setCoordinateIndex( 23, 5);
        */


        /*//Ger ändå bara samma färg
        indexedQuadArray.setColor(0, new Color3f(1, 0, 0));
        indexedQuadArray.setColor(1, new Color3f(0, 1, 0));
        indexedQuadArray.setColor(2, new Color3f(0, 0, 1));
        indexedQuadArray.setColor(3, new Color3f(1, 1, 1));
        indexedQuadArray.setColor(4, new Color3f(1, 0, 1));
        indexedQuadArray.setColor(5, new Color3f(1, 1, 0));
        indexedQuadArray.setColor(6, new Color3f(0, 1, 1));
        indexedQuadArray.setColor(7, new Color3f(0, 0, 0));
        */

        indexedQuadArray.setColor(0, lightgray);
        /*//Endats den översta behövs
        indexedQuadArray.setColor(1, lightgray);
        indexedQuadArray.setColor(2, lightgray);
        indexedQuadArray.setColor(3, lightgray);
        indexedQuadArray.setColor(4, lightgray);
        indexedQuadArray.setColor(5, lightgray);
        indexedQuadArray.setColor(6, lightgray);
        indexedQuadArray.setColor(7, lightgray);
        */


        return indexedQuadArray;
    }




}
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