kicad-developers team mailing list archive

[Wayne Stambaugh <stambaughw@xxxxxxxxx>]

I think this thread is the perfect example of why KiCad has design to
the largest group of users possible.  We do not have the manpower to
support users who want to use really old hardware or users who want us
to use the latest version of opengl.  We would lose too many users in
the middle which is our target and represents the largest user base.
Over time we will move to newer opengl versions.  Users who cannot or
will not upgrade will always be able to run older versions of KiCad.

On 2/8/2017 9:16 AM, José Ignacio wrote:
> My experience is the opposite, on my particular linux box I get the
> worst performance with legacy (it is fast for tiny toy boards, but the
> performance rapidly declines as it gets more complicated), New Cairo is
> also slow but not as bad, but the absolute best performance is with
> OpenGL (of course). And I feel it could be even better if it wasn't
> stuck on OpenGL from 2006, heck if it could use GLES/GL3 it would run on
> the raspberry pi 3!
> 
> On Wed, Feb 8, 2017 at 7:02 AM, Martin Schreiber <mse00000@xxxxxxxxx
> <mailto:mse00000@xxxxxxxxx>> wrote:
> 
>     On Wednesday 08 February 2017 13:32:14 Chris Pavlina wrote:
>     > On Wed, Feb 08, 2017 at 01:28:16PM +0100, Martin Schreiber wrote:
>     > > On Wednesday 08 February 2017 13:18:39 Chris Pavlina wrote:
>     > > > As a Linux user for many years now, that has not been my experience.
>     > >
>     > > You are a happy guy!
>     > > I am the author of MSEide+MSEgui where users expect that it perfectly
>     > > runs on every Windows, Linux and OpenBSD version on any hardware with
>     > > every possible window manager in the universe, I know what I am talking
>     > > about. :-)
>     >
>     > I don't think you do, because you're using your experience developing an
>     > IDE to claim that CAD software shouldn't need OpenGL. That is a very
>     > basic requirement for anything of a graphical nature.
>     >
>     Not for 2D. OpenGL is not well suited for 2D graphical applications.
>     I made an
>     OpenGL backend for MSEgui and have some experience.
> 
>     But you probably misunderstood. I only wanted to say that in the
>     tests I did
>     with KiCad on different Linux boxes I had to select the legacy
>     canvas to be
>     able to work with acceptable performance for zooming and redrawing.
>     I switch
>     to OpenGL when I need the advanced functionality and back to legacy
>     when the
>     snappier performance is more important. The 23 years old Orcad on the K6
>     Windows95 box is even snappier BTW.
>     I thought that I should report the experience of a first time KiCad
>     Linux user
>     because comments were requested. I am sorry if I offended you.
> 
>     Martin
> 
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> 
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