[Interest] [Qt3D] 5.10.0 crash with OpenGL ES 2.0 on desktop

david crémoux david at adeko.com
Mon Dec 18 11:56:01 CET 2017


On 18.12.2017 13:44, Konstantin Tokarev wrote:
> 
> 
> 18.12.2017, 09:05, "david crémoux" <david at adeko.com>:
>> Hello,
>>
>> I have a crash when forcing to use opengl es on desktop for 5.10.0
>> version (via: QApplication::setAttribute(Qt::AA_UseOpenGLES)).
>> It comes from QT3D_UNIFORM_TYPE_IMPL (graphicscontext_p.h:366),
>> m_rawByteSize is set to 0.
>>
>> Looking at the sources it seems that m_rawByteSize is never initialized
>> for opengl es 2.0 (for other api, it is correctly initialized in
>> programUniformsAndLocations).
>>
>> Or am I doing something wrong?
> 
> Documentation says: "Forces the usage of OpenGL ES 2.0 or higher on
> platforms that use dynamic loading of the OpenGL implementation"
> 
> AFAIK dynamic loading is used only on Windows with `-opengl dynamic`
> configuration.
> 
> What platfrom are you using?

I'm using windows 10 with Qt 5.10 64 bits as precompiled dynamic 
libraries (the ones that come with maintenance tool).

I traced from where the crash is coming from using sources.
GraphicsHelperES2 is used during runtime to compile shaders so I expect 
OpenGL ES 2.0 (i.e.: angle) is indeed used.

>>
>> regards,
>> david
>>
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> 



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