[Interest] Anti-Aliased line drawing.

william.crocker at analog.com william.crocker at analog.com
Fri Mar 24 11:38:24 CET 2017


Hello:

I am still hoping for some insight.

What does it take to efficiently draw a good looking, anti-aliased line?
Do I have to buy in to the use of OpenGL?
I am just drawing lines.

Thanks.

Bill
(The man who *is* who he appears to be.
  Apparently that is not as easy as you might think.)


On 03/16/2017 08:15 AM, william.crocker at analog.com wrote:
> [This sender failed our fraud detection checks and may not be who they appear to
> be. Learn about spoofing at http://aka.ms/LearnAboutSpoofing]
>
> Hello:
>
> I am slowly porting my app forward from Qt 4.8.6
>
> With 4.8.6, it is my observation that simple line drawings,
> as made by a QPainter and with Antialiasing enabled in render hints,
> are implemented in software which makes them quite slow.
>
> What can I look forward to if I port my app to 5.X (5.7)
> Is there an option for hardware acceleration
> of AA line drawing and how would I enable it.
>
> I develop on RedHat Enterprise Linux 6.8
>
> Thanks.
>
> Bill
> _______________________________________________
> Interest mailing list
> Interest at qt-project.org
> http://lists.qt-project.org/mailman/listinfo/interest
>
>
>



More information about the Interest mailing list