Re: [Gimp-user] brush effective area

[Richard <strata_ranger hotmail com>]

Brush (and selection) outlines are based on a 50% threshold -- anything inside the area receives over 50% of 
the effect and anything outside receives less.  For low-sharpness ("blurred") brushes this can indeed create 
some ambiguity about exactly which areas are affected how much, and currently the only workaround is learn to 
cope with it.  Perhaps an alternate outlining method based on e.g. 80-20 thresholds could be viable?


As for the selection itself, in the bottom-left corner of the image window is the "Quick Mask" button which 
will display (and let you directly edit) the selection channel of the image.  It takes a little learning, but 
is a good quick way to make clear what parts of an image are under how much of a selection.


As for the tools:  Firstly, check the Opacity setting on the tool you're using.  If you have the tool set to 
low opacity then of course you will only see weak effects; this is just how tool opacity works.


Some tools (blur, smear, dodge/burn) have their own individual "intensity"-like setting that you can find and 
adjust in its specific toolbox.  Experiment with values until you find a setting that works for you (but 
again, check your Opacity setting first to make sure that isn't the problem).


-- Stratadrake
strata_ranger hotmail com
--------------------
Numbers may not lie, but neither do they tell the whole truth.
________________________________
From: gimp-user-list <gimp-user-list-bounces gnome org> on behalf of TerryEA <forums gimpusers com>
Sent: Thursday, April 19, 2018 11:58:32 AM
To: gimp-user-list gnome org
Cc: notifications gimpusers com
Subject: [Gimp-user] brush effective area

These are multiple suggestions.
1. The brush and tool cursors could use indications for the main affected area
and also the general maximum affected area. EXAMPLE: on a blurred brush; a white
ring for main paint area and a red ring for the max feathered area.
2. when using the selection marquee, show (as above) the minimum and maximum
affected area. Also whether the feathering is being done inside the marquee
line, shared on the marquee line, or outside the marquee line.
  Also, the color select could use a "select similar" other than threshold.

3. Some of the tools have very weak affects. EXAMPLE-1: clone barely paints area
and takes a lot of passes to cover properly. Also, the aligning for the tool
doesn't follow well.
EXAMPLE-2: Blur tool is very weak at blending, and should be functional thru the
mode list.

--
TerryEA (via www.gimpusers.com/forums<http://www.gimpusers.com/forums>)
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