simple texturing help

[gelero]

Hi guys.. new around here!
:-/

very nice forum by the way!!


My doubt is very simple...

How can I texture a single quad ?

the quad will be stored at QuadArray.... i guess...


and maybe this texture can be a image in grayscale, to simule transparency...

Any kind of help is really appreciate.

thank you

[gelero]

ahhhh!! i am using java3d... of course...

[gelero]

ok.. let me change my question...
:-/

How can I use the following image like a opacity map ??

http://www.meubrfree.com.br/~guivieira/star.png

Games published by our own members! Check 'em out!

[Trond_A]

Something along the lines of this:

1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   31   32

QuadArray l_quad = new QuadArray(8, QuadArray.COORDINATES | GeometryArray.TEXTURE_COORDINATE_2 | QuadArray.COLOR_4); //Set vertex world position            l_quad.setCoordinate(0, new Point3f(0.0f, 0.0f, -3.0f));             l_quad.setCoordinate(1, new Point3f(2.0f, 0.0f, -3.0f));             l_quad.setCoordinate(2, new Point3f(2.0f, 3.0f, -3.0f));             l_quad.setCoordinate(3, new Point3f(0.0f, 3.0f, -3.0f));       //Set vertex texture coordinates            l_quad.setTextureCoordinate(0, 0, new TexCoord2f(0, 0));             l_quad.setTextureCoordinate(0, 1, new TexCoord2f(1, 0));             l_quad.setTextureCoordinate(0, 2, new TexCoord2f(1, 1));             l_quad.setTextureCoordinate(0, 3, new TexCoord2f(0, 1)); //Set vertex color l_quad.setColor(0, new Color4f(1, 1, 1, 1));             l_quad.setColor(1, new Color4f(1, 0, 0, 1));             l_quad.setColor(2, new Color4f(1, 1, 1, 1));             l_quad.setColor(3, new Color4f(1, 1, 1, 1));             //Set up appearance with texture            Appearance l_quadappearance = new Appearance();                         Texture l_quadtex = new TextureLoader("texture.jpg", this).getTexture();             l_quadappearance.setTexture(l_quadtex);             TextureAttributes l_texatt = new TextureAttributes();             l_texatt.setTextureMode(TextureAttributes.MODULATE);             l_quadappearance.setTextureAttributes(l_texatt); //Add quad to new (or existing) branchgroup BranchGroup l_group = new BranchGroup(); l_group.addChild(new Shape3D(l_quad, l_quadappearance));

This code should work, if it doesn't let me know. I copy/pasted it from a prog I had here, so I might have missed something in the rush.

Hope this helps!

-Trond