[JAVA3D] How can put color to back side of plane

[Naveen Babu Chikkala]

In 3D I need represent plane
I am using following code for plane

PolygonAttributes pattr = new PolygonAttributes();
      pattr.setPolygonMode(pattr.POLYGON_FILL);
       pattr.setBackFaceNormalFlip(false);

    pattr.setCullFace(pattr.CULL_NONE);
    ap.setPolygonAttributes(pattr);

using pattr.CULL_NONE its showing other side of plane in black color .

I am using mouse behaviors to the universe. I have given plane as red color. I need 
same color in other side of plane but its showing in black.

Any solution for my problem

naveen

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