[JAVA3D] Multi-texture question

[David]

I am getting a null pointer exception when I try to set a texture coordinate
for unit state 0.  When I created the triangle strip array I asked for two
texture sets like this:

  public TriangleStripArray getGeometryDefinition( int vertexPoints, int
perStrip[] ) {

      Log.log.println(LogType.EXHAUSTIVE,"Creating multitexture geometry");
      int texMapping[] = {0,1,1};

  return new TriangleStripArray(vertexPoints,
   GeometryArray.COORDINATES |
   GeometryArray.NORMALS |
   GeometryArray.TEXTURE_COORDINATE_2 |
   GeometryArray.COLOR_3,
         2,
         texMapping,
         perStrip);

   }


Later I try to set the texture coordinates for a single vertex like this:

      triangles.setTextureCoordinate(0,vertex,new TexCoord2f(texX,texZ));
      triangles.setTextureCoordinate(1,vertex,new
TexCoord2f(texX/density,texZ/density));

In the only example of this I could find, they were calculating an array of
floats and just setting the entire unit state texture coords like this:

// specify texture coordinates for texture coordinate set 0
>         geo.setTextureCoordinates(0, 0, texCoordSet0);
>
>         // specify texture coordinates for texture coordinate set 1
>         geo.setTextureCoordinates(1, 0, texCoordSet1);


Am I missing something?  I am trying to multi texture a detail texture over
another texture.

Dave Yazel
Cosm Development Team

===========================================================================
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".