[Interest] Canvas antialiasing in 5.3

Gunnar Sletta gunnar.sletta at jolla.com
Fri May 16 09:16:20 CEST 2014

If you are getting FrameBufferObject as the render target, then we rely on the extensions GL_EXT_framebuffer_multisample and GL_EXT_framebuffer_blit to do antialiasing. The default should be Image though, which supports antialiasing regardless. 

Your OpenGL extensions are visible if you put QSG_INFO=1 into the environment. 

If you are using Image as render target or both of those extensions are available, then it is a bug. If so, could you file it through bugreports.qt-project.org ?


On 15 May 2014, at 21:02, Oleg Shparber <trollixx at gmail.com> wrote:

> Hi all,
> With Qt 5.3 (most recent git) Canvas does not respect anitaliasing setting. Everything looks really ugly.See attached screenshots for comparison. I don't know what causes such problem.
> My environment is Arch Linux 64 with ATI graphics.
> Thanks,
> Oleg
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