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Font rendering Gimp 2.8

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Font rendering Gimp 2.8

Postby nuxio » Mon May 28, 2012 10:56 am

Hi there,

I noticed some problems with gimp 2.8.0.
When I used this version of gimp with Fedora 17 beta and Arch Linux, there are some problems with the font rendering when anti aliasing is turned on. Without the Infinality patches the font just renders normally, but after installing freetype-infinality I get some green/blue borders around the text (see attachment). If I turn anti aliasing off in gimp the text renders normally again.

Currently installed:
- fontconfig-infinality
- freetype-infinality

Current OS:
- Arch Linux x86-64
Attachments
example.png
Gimp 2.8 Screenshot
example.png (169.97 KiB) Viewed 9065 times
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Re: Font rendering Gimp 2.8

Postby infinality » Mon May 28, 2012 12:23 pm

I am able to duplicate your issue. I'll need to investigate. Thanks for the report.

:ugeek:

EDIT: This is a strange issue. I can turn off all the enhanced processing and it still results in this problem. I'm having trouble finding the source of this.
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Re: Font rendering Gimp 2.8

Postby nuxio » Wed May 30, 2012 8:39 am

Hmm strange.

I wish I could help finding the source, unfortunately I have really no idea how font rendering etc. works. The only thing I noticed was that with Archlinux default freetype (freetype2 2.4.9) this problem did not show up. So I guess it should be in one of the patches or the freetype version you (or someone else) applied the patches to.

If I find something noticeable, I'll let you know!
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Re: Font rendering Gimp 2.8

Postby infinality » Wed May 30, 2012 8:49 am

The problem doesn't seem to happen with black text on a white background, so as a workaround, you could do that, and then invert the image.
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Re: Font rendering Gimp 2.8

Postby nuxio » Wed May 30, 2012 8:53 am

Indeed! Thanks for the workaround!
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Re: Font rendering Gimp 2.8

Postby sang2 » Wed Oct 31, 2012 10:13 pm

I had the same problem, and my solution was to change the subpixel rendering to v-rgb in 50-base-rendering-inf , and problem solved. But the looking was ugly, not totally ugly, but not like the original configuration and the fonts do not render well, so removing the section
<edit name="rgba" mode="assign">
<const>rgb</const>
</edit>

In the same 50-base-rendering-file, was a good solution for me.
In archlinux x86-64
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