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Game Development / Newbie & Debugging Questions / Re: Broken applet - assist please

on: 2012-08-31 15:22:42

this one works for me, in index.html file:

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<applet code="org.jdesktop.applet.util.JNLPAppletLauncher"
      width="100%"
      height="100%"
      archive="jar/applet-launcher.jar,
               jar/gluegen-rt.jar,
               jar/jogl.all.jar,
               jar/<your_file>.jar">
   <param name="codebase_lookup" value="false">
   <param name="subapplet.classname" value="main.class.here">
   <param name="subapplet.displayname" value="">
   <param name="noddraw.check" value="true">
   <param name="progressbar" value="true">
   <param name="jnlpNumExtensions" value="1">
   <param name="jnlpExtension1"
          value="jar/jogl-all-awt.jnlp">
   <param name="java_arguments" value="-Dsun.java2d.noddraw=true">
   <param name="jnlp_href" value="jar/applet-launcher.jnlp">
</applet>

applet-launcher.jnlp:

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<?xml version="1.0" encoding="utf-8"?>
<jnlp href="applet-launcher.jnlp">
  <information>
    <title></title>
    <vendor></vendor>
    <homepage href=""/>
    <description></description>
    <description kind="short"></description>
    <offline-allowed/>
  </information>

    <resources>
      <j2se href="http://java.sun.com/products/autodl/j2se" version="1.4+"/>
      <property name="sun.java2d.noddraw" value="true"/>
      <jar href="yourfile.jar" main="true"/>
      <extension name="newt-all-awt" href="jogl-all-awt.jnlp" />
    </resources>

  <applet-desc 
      name="Applet"
      main-class="main/class.here"
      width="640" 
      height="480">
  </applet-desc>
</jnlp>

Game Development / Newbie & Debugging Questions / Re: Alpha doesnt work

on: 2012-08-31 15:00:33

setting glColor to white, fixes the problem... but the scene is a little brighter.

The following code was causing alpha to fail:

1	gl.glTexEnvi (GL2.GL_TEXTURE_ENV, GL2.GL_TEXTURE_ENV_MODE, GL2.GL_DECAL);

3	Game Development / Newbie & Debugging Questions / Re: Alpha doesnt work	on: 2012-08-30 20:20:40
ok, found a problem: gl.glTexEnvi (GL2.GL_TEXTURE_ENV, GL2.GL_TEXTURE_ENV_MODE, GL2.GL_DECAL); after removing* that transparency works, but everything is red... its red becouse of font rendering. is there a way to reset opengl color after calling glColor?? and another way to use only texture color no lights?

4	Game Development / Newbie & Debugging Questions / Re: Alpha doesnt work	on: 2012-08-30 20:02:48
ok made a progress, removed default color from objects, only texture now. now on areas where should be transparent, i have red color? EDIT: its not the background, background is blue

5	Game Development / Newbie & Debugging Questions / Re: Alpha doesnt work	on: 2012-08-30 19:45:21
still doesn't work, and i see poligons thru walls.

6	Game Development / Newbie & Debugging Questions / Re: Alpha doesnt work	on: 2012-08-30 18:34:29
Almost everything i have

Game Development / Newbie & Debugging Questions / Alpha doesnt work

on: 2012-08-30 18:02:03

Using JOGL, and problem is - there is no alpha. I have a PNG file that shows transparency in photoshop.

Loading texture:

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   public void LoadTextureFromResource(String res,String type) throws IOException
   {
      
        InputStream stream = getClass().getResourceAsStream(res);
        TextureData data = TextureIO.newTextureData(GLProfile.getDefault(),stream,GL2.GL_RGBA,GL2.GL_RGBA, false, type);
        this.texture = TextureIO.newTexture(data);
        this.loaded = true;
   }

OpenGL init:

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        GLCapabilities capabilities = new GLCapabilities(GLProfile.getDefault());
        capabilities.setHardwareAccelerated(true);
        capabilities.setNumSamples(0);
        capabilities.setAlphaBits(8);
        capabilities.setSampleBuffers(true);

        ......
       
        gl.glDisable(GL2.GL_LIGHTING);
   gl.glBlendFunc(GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA);  // <--
   gl.glEnable (GL2.GL_BLEND); 
        gl.glShadeModel(GLLightingFunc.GL_SMOOTH);
        gl.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
        gl.glClearDepth(1.0f);
        gl.glEnable(GL.GL_DEPTH_TEST);
        gl.glDepthFunc(GL.GL_LEQUAL);
        gl.glHint(GL2ES1.GL_PERSPECTIVE_CORRECTION_HINT, GL.GL_NICEST);

Tried changing blend func, some modes make everything transparent, this one renders fine but without alpha.
And ofcourse, im rendering object with that texture last.

Help??

8	Game Development / Newbie & Debugging Questions / Re: Texturing problem	on: 2011-12-30 00:16:49
texture coords were wrong, i needed to use UVW Unwrap modifier in 3DS max. after that works perfectly

Game Development / Newbie & Debugging Questions / Re: Texturing problem

on: 2011-12-29 22:21:37

some things are complicated too much, somewhere used wrong names...
but anyway i have checked parsed data, everything is correct.

tested with simple object, result:
http://img7.imageshack.us/img7/5130/omgwtfqj.jpg

looks like texture is applied on every side, instead of whole object.

here is my CTexture class:

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public class CTexture 
{
   private Texture texture;
   private boolean loaded;
   
   public CTexture()
   {
      loaded = false;
   }
   
   public void LoadTextureFromResource(String res,String type) throws IOException
   {
        InputStream stream = getClass().getResourceAsStream(res);
        TextureData data = TextureIO.newTextureData(GLProfile.getDefault(),stream, false, type);
        this.texture = TextureIO.newTexture(data);
        this.loaded = true;
   }
   
   public boolean hasTexture()
   {
      return loaded;
   }
   
   public void apply2Object(GL gl)
   {
      texture.enable(gl);
      texture.bind(gl);
   }
   
}

Game Development / Newbie & Debugging Questions / Texturing problem

on: 2011-12-29 18:06:35

I am trying to bake texture in 3DS Max and use it in OpenGL, but texture looks weird.
I was looking on google for few hours, but cant find any solution. Sad

Here is my code:

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public void RenderObject(CObject obj)
   {
      CMesh m; MFace f; MVertex v; MNormal n; MTexCords t; CTexture tx;
      
      tx = obj.GetTexture(); m = obj.GetMesh();
      
      if(tx.hasTexture()) 
      {
         tx.apply2Object(gl.getGL());
      }
      
      gl.glTranslatef(obj.location.x, obj.location.y, obj.location.z);
      gl.glRotatef(obj.rotation.x, 1, 0, 0);
      gl.glRotatef(obj.rotation.y, 0, 1, 0);
      gl.glRotatef(obj.rotation.z, 0, 0, 1);
      
      for(int i = 0; i < m.getFaceList().size();i++)
      {
         f = m.getFaceList().get(i);
         
         gl.glColor3f(0.5f, 0.5f, 0.5f);
         gl.glBegin(GL2.GL_POLYGON);
               
         for(int j = 0;j < f.GetPolygonCount();j++)
         {
            v = m.getVertexList().get(f.GetPolygonByIndex(j).vertexIndex - 1);
            t = m.getTexCordsList().get(f.GetPolygonByIndex(j).texcordIndex - 1);
            n = m.getNormalList().get(f.GetPolygonByIndex(j).normalIndex - 1);
            
            gl.glNormal3f(n.x, n.y, n.z);
            gl.glTexCoord3f(t.u,t.v, t.w);
            gl.glVertex3f(v.x, v.y, v.z);
            
         }

         gl.glEnd();
      }

Code is based on open source OBJ loader in c++.
http://sourceforge.net/projects/objloader/

What i want:
http://img521.imageshack.us/img521/5181/wantp.jpg

What i get:
http://img171.imageshack.us/img171/645/getor.jpg

Baked texture:
http://img205.imageshack.us/img205/8562/bakedi.jpg

help!?

Game Development / Newbie & Debugging Questions / Re: Applet resize problem

on: 2011-09-24 22:02:14

fixed

replaced canvas.setPreferedSize() with canvas.reshape().
eclipse doesn't have javadoc for that method, it has 4 parameters so i guessed that would be x,y,width,and height.

1	canvas.reshape(0, 0, this.getWidth(), this.getHeight());

12	Game Development / Newbie & Debugging Questions / Re: Applet resize problem	on: 2011-09-24 13:31:31
Nobody knows where is problem? Dont know if i have to resize canvas manually or is there some way to tell canvas to resize automatically, i need to set some layout or??

Game Development / Newbie & Debugging Questions / Applet resize problem

on: 2011-09-23 18:52:56

Hi, i am new to java and game development.

I just started creating my first java applet using JOGL library.
After few tutorials i managed to draw a triangle, but have problem with GLCanvas and the reshape method.

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        public class CMain extends Applet implements GLEventListener
....

   public void init()
   {
      glu = new GLU();
      canvas = new GLCanvas(new GLCapabilities(GLProfile.getDefault()));
      this.add(canvas);
      
      canvas.addGLEventListener(this);
      canvas.setPreferredSize(this.getSize());
      
      final FPSAnimator animator = new FPSAnimator(canvas, 60);
      animator.start();
   }

....

   public void reshape(GLAutoDrawable glDrawable, int x, int y, int w, int h) 
   {
         GL2 gl = glDrawable.getGL().getGL2();
         
         h = (h == 0) ? 1 : h;  // Prevent divide by zero
         float aspect = (float)w / h; // Compute aspect ratio
         
         // Set view port to cover full screen 
         gl.glViewport(0, 0, w, h);
         
         // Set up the projection matrix - choose perspective view
         gl.glMatrixMode(GLMatrixFunc.GL_PROJECTION);  
         gl.glLoadIdentity();    // reset
         glu.gluPerspective(45.0f, aspect, 0.1f, 100.0f);
         
         // Switch to the model-view transform
         gl.glMatrixMode(GLMatrixFunc.GL_MODELVIEW);
         gl.glLoadIdentity();    
         
         canvas.setPreferredSize(null);
         canvas.setPreferredSize(this.getSize());  // <--- hmmm
   }

I'm using Eclipse and Java applet viewer, and when i resize window/applet
sometimes the Canvas size doesn't update!! persecutioncomplex

Any suggestions?

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