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Date: Tue, 10 Jun 2014 19:11:15 +1200
From: Lilith Bryant <dark141 AT gmail DOT com>
Subject: Re: [geda-user] PCBGL Branch Issues
To: geda-user AT delorie DOT com
In-Reply-To: <1402352042.14291.4.camel@pcjc2lap> (from pcjc2@cam.ac.uk on
	Tue Jun 10 10:14:02 2014)
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On 2014-06-10 10:14:02 AM, Peter Clifton wrote:
> On Mon, 2014-05-26 at 11:10 +1200, Lilith Bryant wrote:
> > Peter,
> > 
> > Have been testing out this branch on a real job.
> > 
> > Mostly it's been a very welcome speed increase, thank you so much for
> writing this,
> > I hope it makes it into mainline at some point.
> > 
> > There is a few oddities, though:
> > 
> > A  "Rat rings"  have overlapping ends which makes for a little dark circle
> at the 
> > 9 o'clock position.  Cosmetic and ignorable but a little disconcerting at
> first.
> 
> Noted - this is an artefact of the drawing the translucent ring, which
> is in fact a 360 degree arc shape. We don't currently composite the
> shape into a non-overlapping entity, we just draw - hence the dark spot.
> 
> Not a huge priority to fix this at the moment.
> 
> > B1  Overlapping pads aren't visible. (These are needed to get reduced
> paste masks)
> 
> Aren't visible where? This (probably) isn't expected behaviour - can you
> send me a simple test case to look at?
> 
> I think that in this case, we DO composite the pads together, so you'll
> not see the overlay as a dark spot like on the rat ring.
> 
> > B2  Vias on pads aren't showing up either, probably same issue as B1
> 
> Again - not expected, could you send me a test-case.
> 
> A screen-shot highlighting the problems would help, to ensure that it
> isn't a rendering problem specific to some particular graphics setup.
> 

Example PCB file:

http://pastebin.com/iGxzUF6i

PCB+GL version:

http://s1248.photobucket.com/user/aabbccdd8/media/pop_gl_zps886a6782.png.html

PCB mainline:

http://s1248.photobucket.com/user/aabbccdd8/media/pop_nongl_zps555f743f.png.html

Linux Fedora 18 64Bit,  glxinfo:

OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) 945GM 
OpenGL version string: 1.4 Mesa 9.0.1

Hope that helps!

Also, another little oddity:

Ctrl-Shift-Tab (to change sides) doesn't seem to do anything in the PCB+GL version.

Regards,
Lilith