Re: [fltk.coredev] GL root Fl_Gl_Window::draw - Forums

On Tuesday, 27 September 2022 at 14:08:52 UTC+1 Manolo wrote:

Le dimanche 25 septembre 2022 à 17:04:19 UTC+2, Manolo a écrit :
The FLTK git repo now contains (89f9671) cross-platform support for adding FLTK widgets
to an OpenGL3-using Fl_Gl_Window.

That commit has been completed by a newer one (59fc60e) that removes the need
for platform-specific source code in apps that add FLTK widgets to OpenGL3 windows.

Demo program examples/OpenGL3test.cxx shows how to add an FLTK button to
an OpenGL3 window.

Hmm, not sure that works on my ancient Mac; I have

ian$ git log -n1

commit 3225afaeecc1a1f0a54cab6f60be485a0352606c (HEAD -> master, origin/master, origin/HEAD)

Author: ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>

Date: Tue Sep 27 16:51:35 2022 +0200

Remove use of class Fl_Window_Driver inside libfltk_gl

And when I run examples/OpenGL3test I get the GL pane filled with solid red, and a translucent button above it (not the expected square with the rainbow gradient.)

If I toggle double/single buffer, the gradient square appears and the button disappears.

In either case, if I click where I know the object to be the diagnostics printed suggest the widgets are present and responding normally, I simply can not see them.

GL_VERSION=4.1 ATI-1.68.25
Shading Language Version=4.10

on macOS High Sierra 10.13.6