Hi. To try to learn GIMP development, I have been looking into old bug
#588681 (Airbrush tool produces banding with with soft brush). From the
initial problem summary:
"The Airbrush produces bandings when its used with a soft brush and low
pressure. The sharp edges in the bands is [sic] very visi
Hi,
On Tue, 2009-10-20 at 12:22 -0800, Christopher Howard wrote:
> Though having a far from sufficient understanding of how the GIMP brush
> painting process works, it seems to me like this is the fundamental
> problem: In making black-and-white brushes semi-transparent, GIMP
> somehow "levels ou
On Oct 20, 2009, at 1:39 PM, Sven Neumann wrote:
> Hi,
>
> On Tue, 2009-10-20 at 12:22 -0800, Christopher Howard wrote:
>
>> Though having a far from sufficient understanding of how the GIMP
>> brush
>> painting process works, it seems to me like this is the fundamental
>> problem: In making bl
--
Christopher Howard
http://indicium.us
http://theologia.indicium.us
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Jay Cox wrote:
>
> On Oct 20, 2009, at 1:39 PM, Sven Neumann wrote:
>
>> Hi,
>>
>> On Tue, 2009-10-20 at 12:22 -0800, Christopher Howard wrote:
>>
>>> Thoug
> Christopher Howard wrote:
>> Jay Cox wrote:
>>
>> On Oct 20, 2009, at 1:39 PM, Sven Neumann wrote:
>>
>>> Hi,
>>>
>>> On Tue, 2009-10-20 at 12:22 -0800, Christopher Howard wrote:
>>>
Though having a far from sufficient understanding of how the GIMP brush
painting process works, it seems
On Thu, Nov 19, 2009 at 11:17 AM, James Cox wrote:
>> Christopher Howard wrote:
> Thinking about this some more, the error diffusion is probably not even
> necessary. You should be able to get by with some random dithering like
> the following (if it wasn't slower than molasses):
>
> result = fl
On Thu, Nov 19, 2009 at 02:01:13PM +1030, David Gowers wrote:
> On Thu, Nov 19, 2009 at 11:17 AM, James Cox wrote:
> > result = floor(input * opacity + g_random_double());
>
> If you pregenerate a lookup table (say 256 entries), keep a counter
> which cycles 0,1,2,255,0,1,2,255, and only
