Hi all,
Anyone give me any pointers as to why nothing is appearing in my scene. Its probably
something easy but its driving me mad.
Thanks,
Dave.
Wall Class:
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 com.sun.j3d.utils.behaviors.keyboard.*;
import javax.media.j3d.*;
import javax.vecmath.*;
import javax.swing.*;
import com.sun.j3d.loaders.*;
import java.io.*;
import java.util.*;
public class Wall extends Applet
{
private void buildMultiTexturedWall(Appearance floorAp , int roomSize, Point3d
p1,Point3d p2)
{
TransformGroup transformGroup = null;
BranchGroup bg = new BranchGroup();
Vector3d dir = new Vector3d(p2.x - p1.x, p2.y - p1.y, p2.z - p1.z);
double wallLength = Math.sqrt(dir.x*dir.x + dir.y*dir.y);
int itePlan = (int) wallLength/roomSize;
int iteZ = (int) dir.z/roomSize;
Vector3d dirScaled = new Vector3d(dir.x/itePlan, dir.y/itePlan,
roomSize);
for (int j = 0; j < iteZ; j++)
{
for (int i = 0; i < itePlan; i++)
{
GeometryArray floor = new
QuadArray(4,QuadArray.COORDINATES |
QuadArray.TEXTURE_COORDINATE_2);
floor.setCapability(QuadArray.ALLOW_COLOR_WRITE|TransformGroup.ALLOW_TRANSFORM_READ
|TransformGroup.ALLOW_TRANSFORM_WRITE|Group.ALLOW_CHILDREN_EXTEND|
Group.ALLOW_CHILDREN_READ| Group.ALLOW_CHILDREN_WRITE);
Point3d pp0 = new Point3d(p1.x + i*dirScaled.x,
p1.y + i*dirScaled.y, p1.z
+ j*dirScaled.z);
Point3d pp1 = new Point3d(p1.x + (i+1)*dirScaled.x
, p1.y +
(i+1)*dirScaled.y , p1.z + j*dirScaled.z);
Point3d pp2 = new Point3d(p1.x +
(i+1)*dirScaled.x, p1.y +
(i+1)*dirScaled.y, p1.z + (j+1)*dirScaled.z);
Point3d pp3 = new Point3d(p1.x + i*dirScaled.x,
p1.y + i*dirScaled.y, p1.z +
(j+1)*dirScaled.z);
if ((p1.x < 0.0) && (p2.x < 0.0))
{
floor.setCoordinate(0,pp0);
floor.setCoordinate(1,pp1);
floor.setCoordinate(2,pp2);
floor.setCoordinate(3,pp3);
floor.setTextureCoordinate(0, new Point2f(0,
0));
floor.setTextureCoordinate(1, new Point2f(0,
1));
floor.setTextureCoordinate(2, new Point2f(1,
1));
floor.setTextureCoordinate(3, new Point2f(1,
0));
}
else if ((p1.x > 0.0) && (p2.x > 0.0))
{
floor.setCoordinate(3,pp0);
floor.setCoordinate(2,pp1);
floor.setCoordinate(1,pp2);
floor.setCoordinate(0,pp3);
floor.setTextureCoordinate(0, new Point2f(0,
0));
floor.setTextureCoordinate(1, new Point2f(0,
1));
floor.setTextureCoordinate(2, new Point2f(1,
1));
floor.setTextureCoordinate(3, new Point2f(1,
0));
}
else if ((p1.y > 0.0) && (p2.y > 0.0))
{
floor.setCoordinate(0,pp0);
floor.setCoordinate(1,pp1);
floor.setCoordinate(2,pp2);
floor.setCoordinate(3,pp3);
floor.setTextureCoordinate(3, new Point2f(0,
0));
floor.setTextureCoordinate(2, new Point2f(0,
1));
floor.setTextureCoordinate(1, new Point2f(1,
1));
floor.setTextureCoordinate(0, new Point2f(1,
0));
}
else if ((p1.y < 0.0) && (p2.y < 0.0))
{
floor.setCoordinate(3,pp0);
floor.setCoordinate(2,pp1);
floor.setCoordinate(1,pp2);
floor.setCoordinate(0,pp3);
floor.setTextureCoordinate(3, new Point2f(0, 0));
floor.setTextureCoordinate(2, new Point2f(0, 1));
floor.setTextureCoordinate(1, new Point2f(1, 1));
floor.setTextureCoordinate(0, new Point2f(1, 0));
}
Shape3D floorShape3D = new Shape3D(floor, floorAp);
floorShape3D.getGeometry().setCapability(Geometry.ALLOW_INTERSECT);
bg.addChild(floorShape3D);
}
}
transformGroup.addChild(bg); //added multiTexture
}
}
And a test class:
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 com.sun.j3d.utils.behaviors.keyboard.*;
import javax.media.j3d.*;
import javax.vecmath.*;
import javax.swing.*;
import com.sun.j3d.loaders.*;
import java.io.*;
import com.sun.j3d.utils.image.TextureLoader;
import java.util.*;
public class test extends Applet
{
BranchGroup branchGroup;
Canvas3D c;
SimpleUniverse u;
private BoundingSphere bounds;
String imageName;
public BranchGroup createSceneGraph()
{
BranchGroup objRoot = new BranchGroup();
TransformGroup objTrans = new TransformGroup();
objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
objRoot.addChild(objTrans);
return objRoot;
}
//////////////////////////////////////////////
//Adds the wall to the scene
private BranchGroup addWall()
{
Appearance floorAp = new Appearance();
String filename = "stripe.gif";
TextureLoader loader = new TextureLoader(filename, null);
ImageComponent2D image = loader.getImage();
if(image == null)
{
System.out.println("load failed for texture: "+filename);
}
// can't use parameterless constuctor
Texture2D texture = new Texture2D(Texture.BASE_LEVEL, Texture.RGBA,
image.getWidth(), image.getHeight());
texture.setImage(0, image);
//texture.setEnable(false);
floorAp.setTexture(texture);
floorAp.setTransparencyAttributes(
new TransparencyAttributes(TransparencyAttributes.FASTEST, 0.1f));
BranchGroup branchGroup = new BranchGroup();
WallManager wall = new WallManager(branchGroup);
Point3d p1 = new Point3d(10,1,1);
Point3d p2 = new Point3d(1,0,10);
//something here. Think its coordinates. Look up point3d
coordinates!!!!!!!!
wall.buildMultiTexturedWall(floorAp, 40, p1, p2);
bounds = new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);
branchGroup.compile();
return branchGroup;
}
public void buildMultiTexturedWall(Appearance floorAp, int roomSize, Point3d
p1,Point3d p2)
{
TransformGroup transformGroup = null;
BranchGroup bg = new BranchGroup();
Vector3d dir = new Vector3d(p2.x - p1.x, p2.y - p1.y, p2.z - p1.z);
double wallLength = Math.sqrt(dir.x*dir.x + dir.y*dir.y);
int itePlan = (int) wallLength/roomSize;
int iteZ = (int) dir.z/roomSize;
Vector3d dirScaled = new Vector3d(dir.x/itePlan, dir.y/itePlan,
roomSize);
for (int j = 0; j < iteZ; j++)
{
for (int i = 0; i < itePlan; i++)
{
GeometryArray floor = new
QuadArray(4,QuadArray.COORDINATES |
QuadArray.TEXTURE_COORDINATE_2);
floor.setCapability(QuadArray.ALLOW_COLOR_WRITE|TransformGroup.ALLOW_TRANSFORM_READ
|TransformGroup.ALLOW_TRANSFORM_WRITE|Group.ALLOW_CHILDREN_EXTEND|
Group.ALLOW_CHILDREN_READ| Group.ALLOW_CHILDREN_WRITE);
Point3d pp0 = new Point3d(p1.x + i*dirScaled.x,
p1.y + i*dirScaled.y, p1.z
+ j*dirScaled.z);
Point3d pp1 = new Point3d(p1.x + (i+1)*dirScaled.x
, p1.y +
(i+1)*dirScaled.y , p1.z + j*dirScaled.z);
Point3d pp2 = new Point3d(p1.x +
(i+1)*dirScaled.x, p1.y +
(i+1)*dirScaled.y, p1.z + (j+1)*dirScaled.z);
Point3d pp3 = new Point3d(p1.x + i*dirScaled.x,
p1.y + i*dirScaled.y, p1.z +
(j+1)*dirScaled.z);
if ((p1.x < 0.0) && (p2.x < 0.0))
{
floor.setCoordinate(0,pp0);
floor.setCoordinate(1,pp1);
floor.setCoordinate(2,pp2);
floor.setCoordinate(3,pp3);
floor.setTextureCoordinate(0, new Point2f(0,
0));
floor.setTextureCoordinate(1, new Point2f(0,
1));
floor.setTextureCoordinate(2, new Point2f(1,
1));
floor.setTextureCoordinate(3, new Point2f(1,
0));
}
else if ((p1.x > 0.0) && (p2.x > 0.0))
{
floor.setCoordinate(3,pp0);
floor.setCoordinate(2,pp1);
floor.setCoordinate(1,pp2);
floor.setCoordinate(0,pp3);
floor.setTextureCoordinate(0, new Point2f(0,
0));
floor.setTextureCoordinate(1, new Point2f(0,
1));
floor.setTextureCoordinate(2, new Point2f(1,
1));
floor.setTextureCoordinate(3, new Point2f(1,
0));
}
else if ((p1.y > 0.0) && (p2.y > 0.0))
{
floor.setCoordinate(0,pp0);
floor.setCoordinate(1,pp1);
floor.setCoordinate(2,pp2);
floor.setCoordinate(3,pp3);
floor.setTextureCoordinate(3, new Point2f(0,
0));
floor.setTextureCoordinate(2, new Point2f(0,
1));
floor.setTextureCoordinate(1, new Point2f(1,
1));
floor.setTextureCoordinate(0, new Point2f(1,
0));
}
else if ((p1.y < 0.0) && (p2.y < 0.0))
{
floor.setCoordinate(3,pp0);
floor.setCoordinate(2,pp1);
floor.setCoordinate(1,pp2);
floor.setCoordinate(0,pp3);
floor.setTextureCoordinate(3, new Point2f(0, 0));
floor.setTextureCoordinate(2, new Point2f(0, 1));
floor.setTextureCoordinate(1, new Point2f(1, 1));
floor.setTextureCoordinate(0, new Point2f(1, 0));
}
Shape3D floorShape3D = new Shape3D(floor, floorAp);
floorShape3D.getGeometry().setCapability(Geometry.ALLOW_INTERSECT);
bg.addChild(floorShape3D);
}
}
transformGroup.addChild(bg); //added multiTexture
}
public void init()
{
setLayout(new BorderLayout());
GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration();
c = new Canvas3D(config);
add("Center", c);
u = new SimpleUniverse(c);
BranchGroup scene = createSceneGraph();
u.addBranchGraph(addWall());
u.addBranchGraph(scene);
}
public static void main(String[] args)
{
Frame frame = new MainFrame(new test(), 600, 400);
}
}
wall Manager:
import java.io.*;
import javax.media.j3d.*;
import javax.vecmath.*;
public class WallManager
{
BranchGroup branchGroup;
public WallManager(BranchGroup b)
{
branchGroup = b;
}
public void buildMultiTexturedWall(Appearance floorAp , int roomSize, Point3d
p1,Point3d p2)
{
TransformGroup transformGroup = null;
BranchGroup bg = new BranchGroup();
Vector3d dir = new Vector3d(p2.x - p1.x, p2.y - p1.y, p2.z - p1.z);
double wallLength = Math.sqrt(dir.x*dir.x + dir.y*dir.y);
int itePlan = (int) wallLength/roomSize;
int iteZ = (int) dir.z/roomSize;
Vector3d dirScaled = new Vector3d(dir.x/itePlan, dir.y/itePlan,
roomSize);
for (int j = 0; j < iteZ; j++)
{
for (int i = 0; i < itePlan; i++)
{
GeometryArray floor = new
QuadArray(4,QuadArray.COORDINATES |
QuadArray.TEXTURE_COORDINATE_2);
floor.setCapability(QuadArray.ALLOW_COLOR_WRITE|TransformGroup.ALLOW_TRANSFORM_READ
|TransformGroup.ALLOW_TRANSFORM_WRITE|Group.ALLOW_CHILDREN_EXTEND|
Group.ALLOW_CHILDREN_READ| Group.ALLOW_CHILDREN_WRITE);
Point3d pp0 = new Point3d(p1.x + i*dirScaled.x,
p1.y + i*dirScaled.y, p1.z
+ j*dirScaled.z);
Point3d pp1 = new Point3d(p1.x + (i+1)*dirScaled.x
, p1.y +
(i+1)*dirScaled.y , p1.z + j*dirScaled.z);
Point3d pp2 = new Point3d(p1.x +
(i+1)*dirScaled.x, p1.y +
(i+1)*dirScaled.y, p1.z + (j+1)*dirScaled.z);
Point3d pp3 = new Point3d(p1.x + i*dirScaled.x,
p1.y + i*dirScaled.y, p1.z +
(j+1)*dirScaled.z);
if ((p1.x < 0.0) && (p2.x < 0.0))
{
floor.setCoordinate(0,pp0);
floor.setCoordinate(1,pp1);
floor.setCoordinate(2,pp2);
floor.setCoordinate(3,pp3);
floor.setTextureCoordinate(0, new Point2f(0,
0));
floor.setTextureCoordinate(1, new Point2f(0,
1));
floor.setTextureCoordinate(2, new Point2f(1,
1));
floor.setTextureCoordinate(3, new Point2f(1,
0));
}
else if ((p1.x > 0.0) && (p2.x > 0.0))
{
floor.setCoordinate(3,pp0);
floor.setCoordinate(2,pp1);
floor.setCoordinate(1,pp2);
floor.setCoordinate(0,pp3);
floor.setTextureCoordinate(0, new Point2f(0,
0));
floor.setTextureCoordinate(1, new Point2f(0,
1));
floor.setTextureCoordinate(2, new Point2f(1,
1));
floor.setTextureCoordinate(3, new Point2f(1,
0));
}
else if ((p1.y > 0.0) && (p2.y > 0.0))
{
floor.setCoordinate(0,pp0);
floor.setCoordinate(1,pp1);
floor.setCoordinate(2,pp2);
floor.setCoordinate(3,pp3);
floor.setTextureCoordinate(3, new Point2f(0,
0));
floor.setTextureCoordinate(2, new Point2f(0,
1));
floor.setTextureCoordinate(1, new Point2f(1,
1));
floor.setTextureCoordinate(0, new Point2f(1,
0));
}
else if ((p1.y < 0.0) && (p2.y < 0.0))
{
floor.setCoordinate(3,pp0);
floor.setCoordinate(2,pp1);
floor.setCoordinate(1,pp2);
floor.setCoordinate(0,pp3);
floor.setTextureCoordinate(3, new Point2f(0, 0));
floor.setTextureCoordinate(2, new Point2f(0, 1));
floor.setTextureCoordinate(1, new Point2f(1, 1));
floor.setTextureCoordinate(0, new Point2f(1, 0));
}
Shape3D floorShape3D = new Shape3D(floor, floorAp);
floorShape3D.getGeometry().setCapability(Geometry.ALLOW_INTERSECT);
bg.addChild(floorShape3D);
}
}
}
}
===========================================================================
To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
of the message "signoff JAVA3D-INTEREST". For general help, send email to
[EMAIL PROTECTED] and include in the body of the message "help".
