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Azimuth FlatPencils

Posted: 30 May 2016, 21:56
by Sewie
For storyboard sketching I've created two brushes that I quite like. They both respond to stylus pressure but what I like most is that you can also vary the sharpness by rotating the brush. Meaning, they respond to 'Azimuth' like in the image below.

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I find it can give the lines a more organic/traditional pencil look. And you can create sharper lines (for details, for example) by just turning the stylus. Feeling almost like one of those graphite sticks.

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Azi Pencil 1:

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Azi Pencil 2:

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They tend to work best on higher resolutions. The drawings above were done on something like 3840X2160 pix, if I'm not mistaken. On lower resolutions they tend to lose darkness. It's a quirkiness in TVPaint's brush engine that I can't compensate somehow.

Re: Azimuth FlatPencils

Posted: 31 May 2016, 01:17
by Elodie
Great brushes !

Re: Azimuth FlatPencils

Posted: 31 May 2016, 07:56
by NathanOtano
Nice!

Re: Azimuth FlatPencils

Posted: 31 May 2016, 07:56
by schwarzgrau
You're excellent drawings "sold" me the brush, even when the last image looks like you're using a directional blur. I guess you need to be careful, how you rotate the brush.

Re: Azimuth FlatPencils

Posted: 31 May 2016, 08:04
by Sewie
There were no blurs used, but the drawings might have lost some sharpness/crispness because I had to pick them up and stamp them a bunch of times. The 'blurring' is more noticeable with grainy lines than with inked ones, I believe.

And thanks, btw. :)

Re: Azimuth FlatPencils

Posted: 10 Jun 2016, 14:05
by Peter Wassink
Michael, i took the liberty to make a few thinner versions of your excellent brush.
regular scaling made the line too light
and this couldn't be fixed by increasing the opacity the so i doubled up the original brush a couple of steps for each subsequent smaller tip.
Azi-Michael Sewnarain.tvpx

Re: Azimuth FlatPencils

Posted: 14 Jun 2016, 09:48
by Sewie
Thanks, Peter. It absolutely helps, but I have to say that I find it a huge shortcoming, the way brushes tend to change their character when they are resized.

This should be fixed I think, because, as has been mentioned so often before, this just adds to the crazy proliferation of custom buttons (in this case) and custom panels (in general). So many buttons for that same brush in different sizes is just not practical and ought to be unnecessary when we can just use the resize shortcut.

Re: Azimuth FlatPencils

Posted: 14 Jun 2016, 10:25
by Sewie
I was trying to find out how to avoid this opacity issue when resizing the brushes, but I really don't get the logic.

Referring to my original brush, the "Azi Pencil 1":
When I increase the brush in size, the stroke becomes much darker, black almost. When decreasing the brush, the stroke becomes lighter. Isn't that strange, because this specific brush is made up of individual frames with dots, and pixels in variations of opacity with transparent space between the dots? When increasing the brush, I am pulling those pixels over a wider area, increasing the space between. So my intuition say: the line (though thicker/wider) ought to become lighter/grayer. Not darker.

The same problem occurs when decreasing the line, pixels are pushed together so I'd expect a much darker line. But no, it gets much lighter.
Can someone explain why that is?

Re: Azimuth FlatPencils

Posted: 14 Jun 2016, 11:10
by Peter Wassink
i think it is because the original custombrush which is the basis of your tool,
the pixels of it, when scaled down, become very few and very transparent.

try it. reset your tool and stamp it down then resize and stamp down. you'll notice there is relatively less "pixel-power" in the scaled down brush.

But i very much agree with you, this is a serious issue of the software.
General users are not interested in all the technicalities at this level of brush building.
Users expect and should be given predictable /intuitive results.

Resizing the size of a custombrush should not influence line character like it does now.

Re: Azimuth FlatPencils

Posted: 14 Jun 2016, 11:35
by Sewie
i think it is because the original custombrush which is the basis of your tool,
the pixels of it, when scaled down, become very few and very transparent
So then, the engine appears to cut pixels when scaling down and adds them when scaling up?
My intuitive logic applies when I reset the brush, the thinner line becomes darker/blacker whereas the increased line becomes more grayer/transparent.

Perhaps we ought to be given an additional control option, connecting opacity to scale...? I'm just thinking out loud here...

Re: Azimuth FlatPencils

Posted: 14 Jun 2016, 11:51
by Peter Wassink
Sewie wrote: Perhaps we ought to be given an addition control option, connecting opacity to scale...? I'm just thinking out loud here...
yes i am always in favor of more custombrush connection settings, though some of the more unintuitive ones could be placed under "a hood".
to keep basic tool tuning intuitive

opacity to scale is a good one i'd also like to have color as an connection for a longtime.

Re: Azimuth FlatPencils

Posted: 14 Jun 2016, 12:16
by Fabrice
It can be fixed (even if not really a bug, more a limitation of the current system), but into a new brush engine, not this one.

Re: Azimuth FlatPencils

Posted: 14 Jun 2016, 14:56
by Sewie
Thanks Fabrice, that'd be very helpful.
Hopefully it will allow us to solve this strange quirk. Should we make it an official feature request?

Do I understand that a new brush system is (albeit not for the short term) in the works?

Re: Azimuth FlatPencils

Posted: 14 Jun 2016, 15:50
by Fabrice
Sewie wrote:Thanks Fabrice, that'd be very helpful.
Hopefully it will allow us to solve this strange quirk. Should we make it an official feature request?
no, it's not necessary.
Sewie wrote:Do I understand that a new brush system is (albeit not for the short term) in the works?
yes.