[Octave-bug-tracker] [bug #54922] demo surfl 1 fails

[Rik]

Follow-up Comment #7, bug #54922 (project octave):

Interesting.  Octave is, in effect, even more performance-oriented in that it
does not calculate the normals for surface objects unless required.  I would
actually be inclined to keep the Octave-behavior, unless there is only a small
performance benefit.

This was my attempt to check that


octave:22> Z = peaks (100);
octave:23> h = surf (Z, 'facelighting', 'none');
octave:24> hl = light;
octave:25> tic; set (h, 'facelighting', 'gouraud'); toc
Elapsed time is 0.00257993 seconds.


2.6 milliseconds doesn't seem like very much.  I guess I'm okay making the
change, or leaving it as is if that would be simpler.


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