[Interest] Allow external library to generate OpenGL buffers in context of QOpenGLWidget
giuseppe.dangelo at kdab.com
Mon Jul 15 15:55:40 CEST 2019
Il 04/07/19 11:17, Pieter Barendrecht ha scritto:
> I have a Qt application with a QOpenGLWidget for displaying 3D meshes.
> Now I'd like to use an external library (OpenSubdiv in this case, see
> e.g. http://graphics.pixar.com/opensubdiv/docs/api_overview.html) to
> generate additional OpenGL buffers, which I can then bind and use in the
> context of my QOpenGLWidget. Currently the application segfaults when
> OpenSubdiv tries to generate these buffers — it does not seem to have a
> valid OpenGL context.
Does OpenSubdiv simply require a current context when asked to generate
buffers? You can achieve that by simply calling widget->makeCurrent().
Giuseppe D'Angelo | giuseppe.dangelo at kdab.com | Senior Software Engineer
KDAB (France) S.A.S., a KDAB Group company
Tel. France +33 (0)4 90 84 08 53, http://www.kdab.com
KDAB - The Qt, C++ and OpenGL Experts
-------------- next part --------------
A non-text attachment was scrubbed...
Size: 4329 bytes
Desc: Firma crittografica S/MIME
More information about the Interest