[Chimera-users] heavy black awful nuisance grid
goddard at cgl.ucsf.edu
Tue Sep 16 14:14:52 PDT 2008
Barry reports that supersample 1x1 did not remove the black grid on his
Barry Lever wrote:
> Tom: Thanks for suggestion- but alas it did not resolve the
> problem. I have run Chimera on 3 computers, 2 give me this grid
> problem, but the third works fine so the issue is not critical- I can
> use the third computer for graphics. It has been suggested that the
> problem relates to using a generic graphic video card on one of these
> 'bad' computers
> but I doubt this is the reason since previously this 'bad' computer
> did not give me a black grid problem- but the problem may have arisen
> when I upgraded to the latest version of Chimera.
> Thanks for your thoughts
> Thomas Goddard wrote:
>> Hi Barry,
>> This is very likely a problem related to "supersampling", an option
>> for producing higher quality images with Chimera. You should try
>> changing the supersample setting in the File / Save Image... dialog.
>> I suspect 1x1 will not give the grid but the fonts won't look as good
>> in the image. The normal 3x3 setting makes an image 3 times larger
>> in both dimensions then averages it down to your requested size.
>> That smooths out jagged edges. You can get a similar effect by using
>> 1x1 (no supersampling) then make a bigger image and reduce its size
>> in a photo editing program (photoshop, gimp).
>> Barry Lever wrote:
>>> AS a new user of Chimera, I apologize for asking what , for many of
>>> you, is probably a trivial question.... initially when using Chimera
>>> ,creating an image (using pseudobond Reader) and then saving an
>>> image file, (save image) all worked well, but in the last couple of
>>> days, every time I save an image file in whatever mode (png, tif,
>>> jpg etc), I get my image with a heavy black grid across it.(and on
>>> two different computers).
>>> I am using Chimera 1.254. Is there a simple fix- it feels like a
>>> I attach one of the images
>>> Thanks for your help (Windows XP, SP3)
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