[GRASS-dev] [GRASS GIS] #3600: m.nviz.image doesn't produce any output

[GRASS GIS]

#3600: m.nviz.image doesn't produce any output
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  Reporter:  guano        |      Owner:  grass-dev@…
      Type:  defect       |     Status:  new
  Priority:  normal       |  Milestone:
 Component:  Default      |    Version:  7.0.4
Resolution:               |   Keywords:
       CPU:  Unspecified  |   Platform:  MacOSX
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Comment (by hcho):

 Just committed it to r72966 because glViewport (from GS_set_viewport)
 needs to be called anyway.
 https://gamedev.stackexchange.com/questions/147522/what-is-glviewport-for-
 and-why-it-is-not-necessary-sometimes

 Please test r72966 on Windows and MacOS. Linux works fine.

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Ticket URL: <https://trac.osgeo.org/grass/ticket/3600#comment:33>
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