public void copyElement(int inIndex, VertexBuffer outVb, int outIndex) {
        copyElements(inIndex, outVb, outIndex, 1);
    }
Copies a single element of data from this <code>VertexBuffer</code>
to the given output VertexBuffer.

@param inIndex The input element index
@param outVb The buffer to copy to
@param outIndex The output element index

@throws IllegalArgumentException If the formats of the buffers do not
match.
jme3-core/src/main/java/com/jme3/scene/VertexBuffer.java