public void setWireframe(boolean wireframe) {
        applyWireFrame = true;
        this.wireframe = wireframe;
        cachedHashCode = -1;
    }
Enables wireframe rendering mode.

<p>When in wireframe mode, {@link Mesh meshes} rendered in triangle mode
will not be solid, but instead, only the edges of the triangles
will be rendered.

@param wireframe True to enable wireframe mode.
jme3-core/src/main/java/com/jme3/material/RenderState.java