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brush rotation - abotu the chanegs on 10-feb-09

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brush rotation - abotu the chanegs on 10-feb-09 Joao S. O. Bueno 11 Feb 00:47
  brush rotation - abotu the chanegs on 10-feb-09 David Gowers 11 Feb 01:39
Joao S. O. Bueno
2009-02-11 00:47:04 UTC (almost 16 years ago)

brush rotation - abotu the chanegs on 10-feb-09

Hi,

I am aware that it is a work in progress -- just to let you know (Alexia and others) - the changes in the two commits dated 10-feb-2009 got things a lot worse and less natural for me than it was before.

I am nto complainign, I know a lot of tunning is getting in, and I am writing this just for feedback while you adjust it.

Now, I f I paint slowly, the brush will suddenly reverse its angle - Also, if I mark the direction x angle dynamic, the painting angle does nto feel natural, and it felt before - at least when I use a brush that is oriented towards "up" like an up arrow, or the letter "A" - both behaviores were better previously.

Regards,
js
->

David Gowers
2009-02-11 01:39:21 UTC (almost 16 years ago)

brush rotation - abotu the chanegs on 10-feb-09

On Wed, Feb 11, 2009 at 10:17 AM, Joao S. O. Bueno wrote:

Hi,

I am aware that it is a work in progress -- just to let you know (Alexia and others) - the changes in the two commits dated 10-feb-2009 got things a lot worse and less natural for me than it was before.

I am nto complainign, I know a lot of tunning is getting in, and I am writing this just for feedback while you adjust it.

Now, I f I paint slowly, the brush will suddenly reverse its angle - Also, if I mark the direction x angle dynamic, the painting angle does nto feel natural, and it felt before - at least when I use a brush that is oriented towards "up" like an up arrow, or the letter "A" - both behaviores were better previously.

This sounds like the interpolation is being done in the wrong direction; The code needs to compare the angles and interpolate the angle across the shortest path. ie 0 -> 90 shouldn't go backwards 359..270..180..90 but forwards 0..90; similar for 90 -> 0, etc.

David