private Image getImage(boolean isDouble, boolean antialias) {
		Matrix3f matrixRotate = transformManager.getStereoRotationMatrix(isDouble);
		g3d.beginRendering(rectClip.x, rectClip.y, rectClip.width, rectClip.height, matrixRotate, antialias);
		repaintManager.render(g3d, rectClip, modelManager.getFrame(), repaintManager.displayModelIndex);
		// mth 2003-01-09 Linux Sun JVM 1.4.2_02
		// Sun is throwing a NullPointerExceptions inside graphics routines
		// while the window is resized.
		g3d.endRendering();
		return g3d.getScreenImage();
	}