[Octave-bug-tracker] [bug #54970] Use of camlight when a patch is not visible

[Guillaume]

Follow-up Comment #2, bug #54970 (project octave):

Here is the output from Matlab:


>> P = patch  ('Vertices', vertices, 'Faces', faces, ...
        'FaceVertexCData', jet (5), 'FaceColor', 'interp', ...
        'Parent', A, 'Visible', 'off');
>>    
>> get (P, 'FaceNormals')

ans =

     []

>> L = camlight(A, 'headlight'); 
>> get (P, 'FaceNormals')

ans =

     []

>> set (P, 'Visible', 'on');
>> get (P, 'FaceNormals')

ans =

  4x3 single matrix

         0    0.8944   -0.4472
   -0.8944         0   -0.4472
         0   -0.8944   -0.4472
    0.8944         0   -0.4472



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