/** Generate the image used for texturing the gradient across shapes */
public void genImage() {
if (image == null) {
ImageBuffer buffer = new ImageBuffer(128, 16);
for (int i = 0; i < 128; i++) {
Color col = getColorAt(i / 128.0f);
for (int j = 0; j < 16; j++)
buffer.setRGBA(
i, j, col.getRedByte(), col.getGreenByte(), col.getBlueByte(), col.getAlphaByte());
}
image = buffer.getImage();
}
}
