@Override
    public void copyFrameBuffer(FrameBuffer src, FrameBuffer dst, boolean copyDepth) {
        copyFrameBuffer(src, dst, true, copyDepth);
    }
Copy the source buffer to the destination buffer, including both color
and depth.

@param src the source buffer (unaffected)
@param dst the destination buffer
jme3-core/src/main/java/com/jme3/renderer/opengl/GLRenderer.java