[Interest] [qt-android] Is it possible to create OpenGL ES 2 context even when ES 3 is available?

[Liang Jian]

    I have filed a bug report to PowerVR

On Thu, Mar 12, 2015 at 6:39 PM, Till Oliver Knoll <
till.oliver.knoll at gmail.com> wrote:

>
> > Am 12.03.2015 um 11:13 schrieb Liang Jian <jianliang79 at gmail.com>:
> > ....
> > But As you have said Qt will request 2.0 context, and it is the
> implentation choose openges 3 context, then It seems that it is a bug of
> the driver.
>
> Just to repeat and clarify: the fact that the driver returns you an
> "OpenGL 3" (Compatibility) context when you asked for something lower (e.g.
> "OpenGL 2") is /not/ a bug by the driver. The OpenGL specs explicitly
> allows for an OpenGL implementation to return a higher version than the one
> requested, as long as the returned context is compatible with the requested
> one.
>
> The fact that your shader does not seem to compile (when it perfectly
> compiles and runs in a 2.0 Context), /that/ could be a bug though.
>
> Cheers,
>   Oliver
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