public void setInstanceRendering(boolean instanceRendering) {
        this.instanceRendering = instanceRendering;
    }
Set if this filter has to use instance rendering.
@param instanceRendering <code>true</code> if this filter has to use instance rendering and <code>false</code> otherwise.
@see #isInstanceRendering()
jme3-vr/src/main/java/com/jme3/shadow/InstancedDirectionalShadowFilter.java