Text Texture?

Troubleshooting graphics
1

I recently began to use JMonkey and I wanted to know if it is possible to use Text as if it were a texture.

The thing is, I'm making a virtual keyboard, with Boxes being the keys. Can I use the Text class to apply a letter to one side of the Box, so it follows it's movements, like a texture?

Thanks!

2

Wouldnt it be easier to just load an actual character set image as real texture and set UV coords to the right character?

3

Hmmm… yeah, it probably would be better… so I have another question:

Using the Box class, can I apply a texture to only one side of the box? If so, how is that done?

Or should I manually build a box using squares?

4

this question comes up frequently, and i think building your own box made out of 6 quads is the easiest method.

5

Nope. The easiest solution is com.jme.scene.shape.MultiFaceBox

It takes a texture 1 unit wide and 8 units heigh, or 8 stacked up squares. The first 6 squares are mapped to the sides of the Box. Everything else is exactly as in Box.

6
Landei said:

Nope. The easiest solution is com.jme.scene.shape.MultiFaceBox
It takes a texture 1 unit wide and 8 units heigh, or 8 stacked up squares. The first 6 squares are mapped to the sides of the Box. Everything else is exactly as in Box.


Landei, that seems very useful, but I can't find this MultiFaceBox. It doesn't appear to be in com.jme.scene.shape ... why could that be?
7
Chocobo_Master said:

Landei, that seems very useful, but I can't find this MultiFaceBox. It doesn't appear to be in com.jme.scene.shape ... why could that be?


Wierd - its there for me. When I look at the CVS history of the class, it has only 1 entry:
21.09.2007 - move to using clones instead of what should be immutable static values.

Anyways - perhaps you have an older version of jME? get the version from CVS or just the latest jar.
8
Landei said:

Nope. The easiest solution is com.jme.scene.shape.MultiFaceBox


ah yes there is that new thing :)
9

Chocobo_Master, here is it:



package com.jme.scene.shape;

import java.nio.FloatBuffer;

import com.jme.math.Vector3f;

public class MultiFaceBox extends Box {

    private static final long serialVersionUID = 1L;

    public MultiFaceBox() {
        super();
        remap();
    }

    public MultiFaceBox(String name) {
        super(name);
        remap();
    }

    public MultiFaceBox(String name, Vector3f min, Vector3f max) {
        super(name, min, max);
        remap();
    }

    public MultiFaceBox(String name, Vector3f center, float xExtent,
            float yExtent, float zExtent) {
        super(name, center, xExtent, yExtent, zExtent);
        remap();
    }

    private void remap() {
        FloatBuffer fb = getTextureBuffer(0, 0);
        fb.rewind();
        for (int i = 0; i < 6; i++) {
            float top = i / 8f;
            float bottom = (i + 1) / 8f;
            float[] tex = new float[] { 1, bottom, 0, bottom, 0, top, 1, top };
            fb.put(tex);
        }
    }
}