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[Octave-bug-tracker] [bug #53073] OpenGL color LUT seems incorrect after

From: Pantxo Diribarne
Subject: [Octave-bug-tracker] [bug #53073] OpenGL color LUT seems incorrect after a print() for the Qt graphics toolkit
Date: Tue, 6 Feb 2018 06:26:37 -0500 (EST)
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0

Follow-up Comment #1, bug #53073 (project octave):

@Dan: What is a LUT?

Anyway, there is no such thing like a "context switch". gl2ps uses whatever
opengl context is current (here the one provided by the QOpengGLWidget). It
momentarily switches the glRenderMode to GL_FEEDBACK, in order to record the
primitives that are drawn in a buffer instead of drawing onscreen.


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