Shawn,
> This example (as well as Java3D) will blend between two textures.
> However, you can not set the amount of blend, it's always 50/50.
Yes, the example that I included in the previous mail is just meant to
show Mike how multiple textures can be applied to a shape node in Java3D.
> And can you control the amount of blend/alpha (ex texture1.alpha = .2)
> directly - other than the actual alpha of each pixels?
Currently, you need to use the DECAL texture mode and use the
texture alpha value to control the amount of blend of the two textures.
In Java3D1.3, we are proposing a new COMBINE texture mode which will
give you more control on how to combine textures or how to combine
primary color with texture in general.
-Charmaine Lee
Java3D Engineering Team
>
> Charmaine Lee wrote:
>
> > Mike,
> >
> > You can use multiple texture unit states to blend multiple
> > textures onto a shape. Included in the attachment is an
> > example of multi texturing in Java3D.
> >
> > -Charmaine Lee
> > Java3D Engineering Team
> >
> >
> >
> >
> >
> >> X-Originating-IP: [128.187.171.43]
> >> Mime-Version: 1.0
> >> X-OriginalArrivalTime: 14 Feb 2001 22:50:46.0351 (UTC)
> >
> > FILETIME=[916FF5F0:01C096D8]
> >
> >> Date: Wed, 14 Feb 2001 15:03:13 -0800
> >> From: Michael Smith <[EMAIL PROTECTED]>
> >> Subject: [JAVA3D] texture map blending
> >> To: [EMAIL PROTECTED]
> >>
> >> Java3D people,
> >> I'm doing research in image morphing and animation. I'd like
> to know
> >> how you would recommend handling the problem of blending two different
> >> textures onto a shape (triangulated grid) in Java3d. We'd like to do it
> >> taking advantage of java3d's hardware acceleration if we can.
> >> I've looked through the documentation on Java3D and couldn't find
> >> anything that I thought would work for this. The BLEND option in the
> >> TextureAppearance class only works with regaurd to the blend color.
> >> One thing we've done in the past was to paint the first texture
> map at
> >> a fraction of it's value (ex texture1.alpha = .2 ) and then paint
> the second
> >> texture map on top of that with a the rest of the value(
> texture2.alpha = .8
> >> ). I don't know how you would do this in java3d.
> >> I would be most grateful for any advice you would have.
> >>
> >> -Mike Smith.
> >> _________________________________________________________________
> >> Get your FREE download of MSN Explorer at http://explorer.msn.com
> >>
> >>
> ===========================================================================
> >> 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".
> >>
> >>
> >> ------------------------------------------------------------------------
> >>
> >> /*
> >> * @(#)MultiTextureTest.java 1.8 01/01/11 07:40:34
> >> *
> >> * Copyright (c) 1996-2001 Sun Microsystems, Inc. All Rights Reserved.
> >> *
> >> * Sun grants you ("Licensee") a non-exclusive, royalty free,
> license to use,
> >> * modify and redistribute this software in source and binary code form,
> >> * provided that i) this copyright notice and license appear on all
> copies of
> >> * the software; and ii) Licensee does not utilize the software in a
> manner
> >> * which is disparaging to Sun.
> >> *
> >> * 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 AND ITS LICENSORS
> SHALL NOT BE
> >> * LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING,
> MODIFYING
> >> * OR DISTRIBUTING THE 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 SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
> >> * POSSIBILITY OF SUCH DAMAGES.
> >> *
> >> * This software is not designed or intended for use in on-line
> control of
> >> * aircraft, air traffic, aircraft navigation or aircraft
> communications; or in
> >> * the design, construction, operation or maintenance of any nuclear
> >> * facility. Licensee represents and warrants that it will not use or
> >> * redistribute the Software for such purposes.
> >> */
> >>
> >> import com.sun.j3d.utils.image.TextureLoader;
> >> import com.sun.j3d.utils.geometry.Box;
> >> import com.sun.j3d.utils.behaviors.vp.*;
> >> import java.applet.Applet;
> >> import java.awt.*;
> >> import java.awt.event.*;
> >> import com.sun.j3d.utils.applet.MainFrame;
> >> import com.sun.j3d.utils.universe.*;
> >> import javax.media.j3d.*;
> >> import javax.vecmath.*;
> >> import java.awt.image.BufferedImage;
> >>
> >> public class MultiTextureTest extends Applet implements ItemListener{
> >>
> >> Choice choice;
> >> TextureUnitState textureUnitState[] = new TextureUnitState[2];
> >> Texture stoneTex;
> >> Texture skyTex;
> >> Texture lightTex;
> >>
> >> private java.net.URL stoneImage = null;
> >> private java.net.URL skyImage = null;
> >>
> >> private SimpleUniverse u = null;
> >>
> >> public Texture createLightMap(){
> >>
> >> int width = 128;
> >> int height = 128;
> >> BufferedImage bimage = new BufferedImage(width, height,
> BufferedImage.TYPE_INT_RGB);
> >> int [] rgbArray = new int[width * height];
> >> int index, index2;
> >> int rgbInc = 256 / (width / 2 - 20);
> >> int rgbValue = 0;
> >> int k = width/2 - 5;
> >> int i, j, rgb;
> >>
> >> rgb = 0xff;
> >> rgbValue = rgb | (rgb << 8) | (rgb << 16) | (rgb << 24);
> >> for ( i = width / 2 - 1, j = 0; j < 10; j++, i--) {
> >> rgbArray[i] = rgbValue;
> >> }
> >>
> >> for (; i > 8; i--, rgb -= rgbInc) {
> >> rgbValue = rgb | (rgb << 8) | (rgb << 16) | (rgb << 24);
> >> rgbArray[i] = rgbValue;
> >> }
> >>
> >> for (; i >= 0; i--) {
> >> rgbArray[i] = rgbValue;
> >> }
> >>
> >> for (i = 0; i < width/2; i++) {
> >> rgbValue = rgbArray[i];
> >> index = i;
> >> index2 = (width - i - 1);
> >> for (j = 0; j < height; j++) {
> >> rgbArray[index] = rgbArray[index2] = rgbValue;
> >> index += width;
> >> index2 += width;
> >> }
> >> }
> >>
> >> bimage.setRGB(0, 0, width, height, rgbArray, 0, width);
> >>
> >>
> >> ImageComponent2D grayImage = new
> ImageComponent2D(ImageComponent.FORMAT_RGB, bimage);
> >>
> >> lightTex = new Texture2D(Texture.BASE_LEVEL, Texture.RGB, width,
> height);
> >> lightTex.setImage(0, grayImage);
> >>
> >> return lightTex;
> >> }
> >>
> >>
> >> 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(0.4);
> >> objScale.setTransform(t3d);
> >> objRoot.addChild(objScale);
> >>
> >> TransformGroup objTrans = new TransformGroup();
> >> //write-enable for behaviors
> >> objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
> >> objTrans.setCapability( TransformGroup.ALLOW_TRANSFORM_READ );
> >> objTrans.setCapability(TransformGroup.ENABLE_PICK_REPORTING);
> >> objScale.addChild(objTrans);
> >>
> >> Appearance ap = new Appearance();
> >>
> >> // load textures
> >> TextureAttributes texAttr1 = new TextureAttributes();
> >> texAttr1.setTextureMode(TextureAttributes.DECAL);
> >> TextureAttributes texAttr2 = new TextureAttributes();
> >> texAttr2.setTextureMode(TextureAttributes.MODULATE);
> >>
> >> TextureLoader tex = new TextureLoader(stoneImage, new
> String("RGB"), this);
> >> if (tex == null)
> >> return null;
> >> stoneTex = tex.getTexture();
> >>
> >> tex = new TextureLoader(skyImage, new String("RGB"), this);
> >> if (tex == null)
> >> return null;
> >> skyTex = tex.getTexture();
> >>
> >> lightTex = createLightMap();
> >>
> >>
> >> textureUnitState[0] = new TextureUnitState(stoneTex, texAttr1,
> null);
> >>
> textureUnitState[0].setCapability(TextureUnitState.ALLOW_STATE_WRITE);
> >>
> >> textureUnitState[1] = new TextureUnitState(lightTex, texAttr2,
> null);
> >>
> textureUnitState[1].setCapability(TextureUnitState.ALLOW_STATE_WRITE);
> >>
> >> ap.setTextureUnitState(textureUnitState);
> >>
> >> //Create a Box
> >> Box BoxObj = new Box(1.5f, 1.5f, 0.8f, Box.GENERATE_NORMALS |
> >> Box.GENERATE_TEXTURE_COORDS, ap, 2);
> >> // add it to the scene graph.
> >> objTrans.addChild(BoxObj);
> >>
> >> BoundingSphere bounds =
> >> new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);
> >>
> >> //Shine it with two lights.
> >> Color3f lColor1 = new Color3f(0.7f, 0.7f, 0.7f);
> >> Color3f lColor2 = new Color3f(0.2f, 0.2f, 0.1f);
> >> Vector3f lDir1 = new Vector3f(-1.0f, -1.0f, -1.0f);
> >> Vector3f lDir2 = new Vector3f(0.0f, 0.0f, -1.0f);
> >> DirectionalLight lgt1 = new DirectionalLight(lColor1, lDir1);
> >> DirectionalLight lgt2 = new DirectionalLight(lColor2, lDir2);
> >> lgt1.setInfluencingBounds(bounds);
> >> lgt2.setInfluencingBounds(bounds);
> >> objScale.addChild(lgt1);
> >> objScale.addChild(lgt2);
> >>
> >> // Let Java 3D perform optimizations on this scene graph.
> >> objRoot.compile();
> >>
> >> return objRoot;
> >> }
> >>
> >> public MultiTextureTest (){
> >> }
> >>
> >> public MultiTextureTest(java.net.URL stoneURL, java.net.URL skyURL) {
> >> stoneImage = stoneURL;
> >> skyImage = skyURL;
> >> }
> >>
> >> public void init() {
> >> if (stoneImage == null) {
> >> // the path to the image for an applet
> >> try {
> >> stoneImage = new java.net.URL(getCodeBase().toString() +
> >> "../images/stone.jpg");
> >> }
> >> catch (java.net.MalformedURLException ex) {
> >> System.out.println(ex.getMessage());
> >> System.exit(1);
> >> }
> >> }
> >>
> >> if (skyImage == null) {
> >> // the path to the image for an applet
> >> try {
> >> skyImage = new java.net.URL(getCodeBase().toString() +
> >> "../images/bg.jpg");
> >> }
> >> catch (java.net.MalformedURLException ex) {
> >> System.out.println(ex.getMessage());
> >> System.exit(1);
> >> }
> >> }
> >>
> >> setLayout(new BorderLayout());
> >> GraphicsConfiguration config =
> >> SimpleUniverse.getPreferredConfiguration();
> >>
> >> Canvas3D c = new Canvas3D(config);
> >> add("Center", c);
> >>
> >> // create the gui
> >> choice = new Choice();
> >> choice.addItem("stone + light");
> >> choice.addItem("stone");
> >> choice.addItem("lightMap");
> >> choice.addItem("sky");
> >> choice.addItem("stone + sky");
> >> choice.addItemListener(this);
> >> add("North", choice);
> >>
> >> BranchGroup scene = createSceneGraph();
> >> u = new SimpleUniverse(c);
> >>
> >> ViewingPlatform viewingPlatform = u.getViewingPlatform();
> >> // This will move the ViewPlatform back a bit so the
> >> // objects in the scene can be viewed.
> >> viewingPlatform.setNominalViewingTransform();
> >>
> >> // add orbit behavior but disable translate
> >> OrbitBehavior orbit =
> >> new OrbitBehavior(c, OrbitBehavior.DISABLE_TRANSLATE);
> >> BoundingSphere bounds =
> >> new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0);
> >> orbit.setSchedulingBounds(bounds);
> >> viewingPlatform.setViewPlatformBehavior(orbit);
> >>
> >> u.addBranchGraph(scene);
> >> }
> >>
> >> public void destroy() {
> >> u.removeAllLocales();
> >> }
> >>
> >> public void itemStateChanged(ItemEvent e)
> >> {
> >> int index = choice.getSelectedIndex();
> >>
> >> switch (index) {
> >> case 0 : /* stone + light */
> >> textureUnitState[0].setTexture(stoneTex);
> >> textureUnitState[1].setTexture(lightTex);
> >> break;
> >> case 1 : /* stone */
> >> textureUnitState[0].setTexture(stoneTex);
> >> textureUnitState[1].setTexture(null);
> >> break;
> >> case 2 : /* light */
> >> textureUnitState[0].setTexture(null);
> >> textureUnitState[1].setTexture(lightTex);
> >> break;
> >> case 3 : /* sky */
> >> textureUnitState[0].setTexture(null);
> >> textureUnitState[1].setTexture(skyTex);
> >> break;
> >> case 4 : /* stone + sky */
> >> textureUnitState[0].setTexture(stoneTex);
> >> textureUnitState[1].setTexture(skyTex);
> >> break;
> >> default: /* both */
> >> break;
> >> }
> >> }
> >>
> >> public static void main(String argv[])
> >> {
> >> java.net.URL stoneURL = null;
> >> java.net.URL skyURL = null;
> >> // the path to the image for an application
> >> try {
> >> stoneURL = new java.net.URL("file:../images/stone.jpg");
> >> skyURL = new java.net.URL("file:../images/bg.jpg");
> >> }
> >> catch (java.net.MalformedURLException ex) {
> >> System.out.println(ex.getMessage());
> >> System.exit(1);
> >> }
> >> new MainFrame(new MultiTextureTest(stoneURL, skyURL), 750, 750);
> >> }
> >> }
> >>
> >> MultiTextureTest.java
> >>
> >> Content-Description:
> >>
> >> MultiTextureTest.java
> >> Content-Type:
> >>
> >> TEXT/plain
> >>
> >>
>
>
> --
> ___________________________________________________________
>
> Shawn Kendall Full Sail Real World Education
> Course Director 3300 University BLVD
> Real Time 3D for Gaming Winter Park FL 32792
> [EMAIL PROTECTED] http://www.fullsail.com
> ___________________________________________________________
>
>
> --
> ___________________________________________________________
>
> Shawn Kendall Full Sail Real World Education
> Course Director 3300 University BLVD
> Real Time 3D for Gaming Winter Park FL 32792
> [EMAIL PROTECTED] http://www.fullsail.com
> ___________________________________________________________
>
> ===========================================================================
> 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".
===========================================================================
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".
