How to set GL_LINEAR as default on QOpenGLFramebufferObject ?
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wrote on 27 Apr 2018, 08:16 last edited by
I'm having scaling issues while rendering from a hw surface and I've discovered that's because QOpenGLFramebufferObject has set
GL_TEXTURE_MIN_FILTER -> GL_NEAREST GL_TEXTURE_MAG_FILTER -> GL_NEARESTBy default (https://code.woboq.org/qt5/qtbase/src/gui/opengl/qopenglframebufferobject.cpp.html#516)
How can I change this to be GL_LINEAR ? There's not public api for that but I'm pretty sure that should be a way to do this, as it's something more than one will need to change..
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wrote on 27 Apr 2018, 10:48 last edited by
If found the way by myself, if this can help to someone, is a question of attaching the texture again and change it before the fbo generation.
Like:
```
glBindTexture(GL_TEXTURE_2D, d->fbo->texture());
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); // Linear Filtering
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); // Linear Filtering
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