Re: [PyOpenGL-Users] Crossfade images

[Mads I. <mp...@co...>]

Frédéric wrote:
> On vendredi 16 octobre 2009, Ian Mallett wrote:
>
>   
>> I can't really help you directly, as I have no idea what PyQt4 is.
>>
>> The flickering screen might be caused by vsync issues and/or
>>  double/single buffering issues.
>>
>> To your second question, OpenGL also has many blending modes, so you can
>>  use those.  I don't know how that works with PyQt4.
>>     
>
> Thanks for your answer. I will dig for that vsync/double buffering issue.
>
> PyQt4 is the Python binding for the Qt graphical toolkit.
>
>   
The QGLWidget from PyQt4 provides a generic framework for doing OpenGL 
graphics. But if you have PyQt4 related questions you should consult the 
PyQt4 mailing list: http://www.riverbankcomputing.co.uk/support/lists. 
The double buffering behavior of the QGLWidget, however, is pretty 
well-described in the Qt documentation 
http://doc.trolltech.com/4.5/qglwidget.html.

In general, I suggest you start off by developing a very simple example 
that displays, say, a sphere or a torus and make sure this works as 
intended. Then, you can start off by doing more complex things.

Best regards,

Mads


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