[Libreoffice-bugs] [Bug 132114] New: specular light on 3D object does not work for front and back face

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=132114

            Bug ID: 132114
           Summary: specular light on 3D object does not work for front
                    and back face
           Product: LibreOffice
           Version: 7.0.0.0.alpha0+ Master
          Hardware: x86-64 (AMD64)
                OS: Windows (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Draw
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: rb.henschel at t-online.de

Created attachment 159571
  --> https://bugs.documentfoundation.org/attachment.cgi?id=159571&action=edit
Examples of 3D objects for testing specularity

Open attached document. It has
a 3D-object made by extrusion, shown with visible front face, top face and back
face
a 3D-object made by rotation, angle 180°, so that front face and back face are
visible
a 3D cube

Notice, that front and back faces do not show the specular light.

The problem is not, that front and back faces are plane. The cube has plane
faces too and the side faces of the extrusion objects are plane too.

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